Page 1 AQ-F205 Feeder protection device Instruction manual...
Page 2: Table Of Contents
A A Q Q -F205 -F205 Instruction manual Version: 2.11 Table of contents 1 Document inf 1 Document informa ormation tion ..............................................5 5 1.1 Version 2 revision notes ......................5 1.2 Version 1 revision notes ......................8 1.3 Safety information ........................9 1.4 Abbreviations........................
Page 3 A A Q Q -F205 -F205 Instruction manual Version: 2.11 4.5.5 Auto-recloser (79) ....................250 4.5.6 Cold load pick-up (CLPU)..................279 4.5.7 Switch-on-to-fault (SOTF) ..................287 4.5.8 Synchrocheck (ΔV/Δa/Δf; 25) .................. 290 4.5.9 Programmable control switch .................. 302 4.5.10 Analog input scaling curves ................... 303 4.5.11 Logical outputs......................
Page 4 A A Q Q -F205 -F205 Instruction manual Version: 2.11 8.1.2.2 CPU communication ports................396 8.1.2.3 CPU digital inputs ..................397 8.1.2.4 CPU digital outputs..................397 8.1.3 Option cards ......................398 8.1.3.1 Digital input module ..................398 8.1.3.2 Digital output module.................. 399 8.1.4 Display ........................
Page 5 A A Q Q -F205 -F205 Instruction manual Version: 2.11 Disclaimer Please read these instructions carefully before using the equipment or taking any other actions with respect to the equipment. Only trained and qualified persons are allowed to perform installation, operation, service or maintenance of the equipment.
Page 6: Document Inf
A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 1 Document information 1.1 Version 2 revision notes Table. 1.1 - 1. Version 2 revision notes Revision 2.00 Date 6.6.2019 - New more consistent look. - Improved descriptions generally in many chapters. - Improved readability of a lot of drawings and images.
Page 7 A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 - Terminology consistency improved (e.g. binary inputs are now always called digital inputs). - Tech data modified to be more informative about what type of measurement inputs are used (phase currents/voltages, residual currents/voltages), what component of that measurement is available (RMS, TRMS, peak-to-peak) and possible calculated measurement values (powers, impedances, angles etc.).
Page 8 A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 Revision 2.06 Date 21.6.2022 - Improved descriptions generally in many chapters. - Improved readability of a lot of drawings and images. - Order codes have been revised. - Fixed bias calculation formula for restricted earth fault function.
Page 9: Version 1 Revision Notes
A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 - Added the 5 ms update time in the measurement chapters. - Added Milliampere input module (mA out & mA in). Changes - Added spring lock cage options for connectors. See the "Ordering information"...
Page 10: Safety Information
A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 Date 16.1.2017 • Added Programmable Control Switch and Indicator Object descriptions. Changes • Order code updated. Revision 1.08 Date 12.12.2017 • Measurement value recorder description added. • ZCT connection added to the current measurement description. •...
Page 11: Abbreviations
A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 Please note that although these warnings relate to direct damage to personnel and/or equipment, it should be understood that operating damaged equipment may also lead to further, indirect damage to personnel and/or equipment.
Page 12 A A Q Q -F205 -F205 1 Document information Instruction manual Version: 2.11 IDMT – Inverse definite minimum time IGBT – Insulated-gate bipolar transistor I/O – Input and output IRIG-B – Inter-range instruction group, timecode B LCD – Liquid-crystal display LED –...
Page 13: General
A A Q Q -F205 -F205 2 General Instruction manual Version: 2.11 2 General The AQ-F205 feeder protection device is a member of the AQ 200 product line. However, while the hardware and the software are modular in the AQ 200 product line, AQ-F205 is provided as a fixed feeder protection device with a factory set of I/O and functionality.
Page 14: Device User Int Vice User Interface Erface
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 3 Device user interface 3.1 Panel structure The user interface section of an AQ 200 or AQ 250 series device is divided into two user interface sections: one for the hardware and the other for the software.
Page 15: Mimic And Main Menu
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 When the unit is powered on, the green "Power" LED is lit. When the red "Error" LED is lit, the device has an internal (hardware or software) error that affects the operation of the unit. The activation of the yellow "Start"...
Page 16: Navigation In The Main Configuration Menus
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 3.2.2 Navigation in the main configuration menus All the settings in this device have been divided into the following six (6) main configuration menus: • General •...
Page 17 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.3 - 4. General menu structure. Device info Figure. 3.3 - 5. Device info. © Arcteq Relays Ltd IM00013...
Page 18 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Table. 3.3 - 3. Parameters and indications in the General menu. Name Range Step Default Description Device name Unitname The file name uses these fields when loading the .aqs configuration file from the AQ-200 Device location Unitlocation...
Page 19 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Name Range Step Default Description If the user navigates to a menu and gives no input after a period of time defined with this Return to default view 0…3600 s 10 s parameter, the unit automatically returns to...
Page 20: Protection Menu
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 3.4 Protection menu General Figure. 3.4 - 7. Protection menu structure. The Protection main menu includes the Stage activation submenu as well as the submenus for all the various protection functions, categorized under the following modules: "Arc protection", "Current", "Voltage", "Frequency", "Sequence"...
Page 21 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.4 - 8. Protection menu view. Stage activation You can activate the various protection stages in the Stage activation submenu (see the images below). Each protection stage and supporting function is disabled by default. When you activate one of the stages, its activated menu appears in the stage-specific submenu.
Page 22 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Example of a protection stage and its use Once a protection stage has been activated in the Stage activation submenu, you can open its own submenu. In the image series below, the user has activated three current stages. The user accesses the list of activated current stages through the "Current"...
Page 23 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 The "Info" section offers many details concerning the function and its status: • Function condition: indicates the stage's condition which can be Normal, Start, Trip, or Blocked. •...
Page 24 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.4 - 13. Registers. Register menu content is not available in the HMI. It can only be accessed with AQtivate setting tool. Stored in the "Registers" section you can find both "Operation event register" and "General event register".
Page 25 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.4 - 14. I/O. The "I/O" section is divided into two subsections: "Direct output control" and "Blocking input control". In "Direct output control" you can connect the stage's signals to physical outputs, either to an output relay or an LED (START or TRIP LEDs or one of the 16 user configurable LEDs).
Page 26: Control Menu
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.4 - 15. Events. You can mask on and mask off the protection stage related events in "Event mask". By default events are masked off. You can activate the desired events by masking them ("x"). Remember to save your maskings by confirming the changes with the check mark icon.
Page 27 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Controls enabled Figure. 3.5 - 17. Controls enabled submenu. You can activate the selected control functions in the Controls enabled submenu. By default all the control functions are disabled. All activated functions can be viewed in the Control functions submenu (see the section "Control functions"...
Page 28 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 • Used se Used set t ting gr ting groups oups: this setting allows the activation of setting groups SG1...SG8 (only one group is active by default). •...
Page 29 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 21. Settings section. OBJECT SET AND STATUS • L L oc ocal/R al/Remo emot t e sta e stat t us us: control access may be set to Local or Remote (Local by default; please note that when local control is enabled, the object cannot be controlled through the bus and vice versa).
Page 30 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 • An object has both Open input Open input and C C lose input lose input signals which are used for indicating the status of the breaker on the HMI and in SCADA. Status can be indicated by any of the following: digital inputs, logical inputs or outputs.
Page 31 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 22. Application control section. You can connect object statuses directly to specific physical outputs in the "Signal connections" subsection ( Control → Application control ). A status can be connected to output relays, as well as to user-configurable LEDs.
Page 32 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 The "Registers"section stores the function's specific fault data. There are twelve (12) registers, and each of them includes data such as opening and closing times, command types and request failures. The data included in the register depend on the protection function.
Page 33 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Each control function that has been activated is listed in the Control functions submenu (see the middle image above). This submenu includes the following sections: "Info", "Settings", "Registers", "I/O" and "Events".
Page 34 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 The stage settings vary depending on which control function they are a part of. By default only one setting group of the eight available setting groups is activated. You can enable more groups in the Control →...
Page 35 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 29. I/O section. The "I/O" section is divided into two subsections: "Direct output control" and "Blocking input control". In "Direct output control" you can connect the stage's signals to physical outputs, either to an output relay or an LED (START or TRIP LEDs or one of the 16 user configurable LEDs).
Page 36 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 30. Events section. You can mask on and mask off events related to an object's stage in "Event mask". By default all events are masked off.
Page 37 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 32. Digital input section. All settings related to digital inputs can be found in the "Digital inputs" section. The "Digital inputs settings" subsection includes various settings for the inputs: the polarity selection determines whether the input is Normal Open (NO) or Normal Closed (NC) as well as the activation threshold voltage (16…200 V AC/DC, step 0.1 V) and release threshold voltage (10…200 V AC/DC, step 0.1 V) for each available input.
Page 38 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 The "Digital outputs settings" subsection lets you select the polarity for each output; they can be either Normal Open (NO) or Normal Closed (NC). The default polarity is Normal Open. The operational delay of an output contact is approximately 5 ms.
Page 39 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 35. Device I/O matrix section. Through the "Device I/O matrix" section you can connect digital inputs, logical outputs, protection stage status signals (START, TRIP, BLOCKED, etc.), object status signals and many other binary signals to output relays, or to LEDs configured by the used.
Page 40 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Figure. 3.5 - 37. Programmable mimic indicators section. Programmable mimic indicators can be placed into the mimic to display a text based on the status of a given binary signal (digital input, logical signal, status of function start/tripped/blocked signals etc.).
Page 41: Communication Menu
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 NOTICE! TICE! Please refer to the "Communication" chapter for a more detailed description of the use of logical signals. 3.6 Communication menu Figure. 3.6 - 39. Communication menu. The Communication main menu includes four submenus (as seen in the figure above): Connections , Protocols, General IO and Realtime signals to Comm .
Page 42 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Connections Figure. 3.6 - 40. View of the Connections submenu. The Connections submenu offers the following bits of information and settings: ETHERNET ETHERNET This section defines the IP settings for the Ethernet port in the back panel of the unit. •...
Page 43 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Protocols Figure. 3.6 - 41. View of the Protocols submenu. The Protocols submenu offers access to the various communication protocol configuration menus. Some of the communication protocols use serial communication and some use Ethernet communication.
Page 44: Measurement Menu
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 3.7 Measurement menu Figure. 3.7 - 42. Measurement section. The Measurement menu includes the following submenus: Transformers , Frequency , Current measurement , Voltage measurement , Power and energy measurement , Impedance calculations , and Phasors .
Page 45 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 CT module Figure. 3.7 - 44. CT module section. The three main sections ("Phase CT scaling", "Residual I01 CT scaling" and "Residual I02 CT scaling") determine the ratio of the used transformers. Additionally, the nominal values are also determined in the CT module submenu.
Page 46 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 VT primary and secondary voltages must match with the connected voltage transformer in addition to the voltage measurement mode. These settings are then used for scaling the voltage channel input voltages to primary and per unit values as well as power and energy measurement values if current measurements are also available.
Page 47 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Current measurement Figure. 3.7 - 47. Current measurement submenu. Current measurement submenu includes various individual measurements for each phase or phase-to- phase measurement. The Current measurement submenu has been divided into four sections: "Phase currents", "Residual currents", "Sequence currents", and "Harmonics".
Page 48 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Voltage measurement Figure. 3.7 - 48. Voltage measurement submenu and System Voltages menu. Voltage measurement submenu includes various individual measurements for each phase or phase-to- phase measurement. The Voltage measurement submenu has been also divided into four sections: "Voltage inputs", "Sequence voltages", "System voltages", and "Harmonics".
Page 49 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Power and energy measurement Figure. 3.7 - 49. Power and Energy measurement submenu. The Power and energy measurement submenu includes three sections: "Power and energy measurement settings", "Power measurements" and "Energy measurements". As the name suggests, the first section determines the settings by which the power and energy calculations are made.
Page 50: Monitoring Menu
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 The Impedance calculations submenu is divided into four sections: "Impedance calculation settings", "Phase-to-phase impedances", "Phase-to-earth impedances" and "Positive sequence impedance". You can activate impedance calculations in the first section. "Phase-to-phase impedances" display the resistances and reactances of the three phase-to-phase connections, both primary and secondary, as well as the primary and secondary impedances and impedance angles.
Page 51 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Monitors enabled Figure. 3.8 - 53. Monitors enabled submenu. You can activate the selected monitor functions in the Monitors enabled submenu. By default all the control functions are disabled. All activated functions can be viewed in the Monitor functions submenu (see the section "Monitor functions"...
Page 52 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 Disturbance recorder Figure. 3.8 - 55. Disturbance recorder settings. The Disturbance recorder submenu has the following settings: • "Recorder enabled" enables or disables the recorder. • "Recorder status" indicates the status of the recorder. •...
Page 53: Configuring User Levels And Their Passwords
A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 • Enabling "Auto. get recordings" allows the device to automatically upload recordings to the designated FTP folder (which, in turn, allows any FTP client to read the recordings from the device's memory).
Page 54 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 A number of stars are displayed in the upper right corner of the HMI; these indicate the current user level. The different user levels and their star indicators are as follows (also, see the image below for the HMI view): •...
Page 55 A A Q Q -F205 -F205 3 Device user interface Instruction manual Version: 2.11 • User: Can view any menus and settings but cannot change any settings, nor operate breakers or other equipment. • Operator: Can view any menus and settings but cannot change any settings BUT can operate breakers and other equipment.
Page 56: Functions Unctions
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4 Functions 4.1 Functions included in AQ-F205 The AQ-F205 feeder protection device includes the following functions as well as the number of stages in those functions. Table. 4.1 - 4. Protection functions of AQ-F205. Name (number ANSI Description...
Page 57 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name (number ANSI Description of stages) I2> Negative sequence overcurrent/ I2>> CUB (4) 46/46R/46L phase current reversal/ I2>>> current unbalance protection I2>>>> U1/U2>/< U1/U2>>/<< VUB (4) U1/U2>>>/<<< 47/27P/59PN Sequence voltage protection U2>>>>/<<<<...
Page 58: Measurements
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name ANSI Description Voltage transformer supervision Disturbance recorder Total harmonic distortion Circuit breaker wear monitor 21FL Fault locator MREC Measurement recorder VREC Measurement value recorder 4.2 Measurements 4.2.1 Current measurement and scaling The current measurement module (CT module, or CTM) is used for measuring the currents from current transformers.
Page 59 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.1 - 57. Current measurement terminology. P P RI: RI: The primary current, i.e. the current which flows in the primary circuit and through the primary side of the current transformer.
Page 60 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The device calculates the scaling factors based on the set values of the CT primary, the CT secondary and the nominal current settings. The device measures the secondary current, the current output from the current transformer installed into application's primary circuit.
Page 61 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 • The phase currents are connected to the I01 residual via a Holmgren connection. • The starpoint of the phase current CT's secondary current is towards the line. Phase CT scaling Next, to scale the current to per-unit values, we have to select whether the basis of the phase CT scaling is the protected object's nominal current or the CT primary value.
Page 62 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Once the measurement scaling is tied to the protected object's nominal current, the user must set the appropriate input for the "Nominal current In" setting. One can now see the differences between the two scaling options (CT nominal vs.
Page 63 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.1 - 63. Scalings display (based on the CT nominal). Figure. 4.2.1 - 64. Scalings display (based on the protected object's nominal current). As the images above show, the scaling selection does not affect how primary and secondary currents are displayed (as actual values).
Page 64 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.1 - 65. Connections of ZCT scaling. Troubleshooting When the measured current values differ from the expected current values, the following table offers possible solutions for the problems. W W ARNING! ARNING! If you work with energized CTs, extreme caution needs to be taken when checking the...
Page 65 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Problem Solution The phase currents are connected to the measurement module but the order or polarity of one or all phases is incorrect. In device settings, go to Measurement → Phasors and check the "Phase current vectors"...
Page 66 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.1 - 66. Common phase polarity problems. The following image presents the most common problems with network rotation (mix phases). These problems can be difficult to find because the measurement result is always the same in the device. If two phases are mixed together, the network rotation always follows the pattern IL1-IL3-IL2 and the measured negative sequence current is therefore always 1.00 (in.
Page 67 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.1 - 67. Common network rotation (mixed phases) problems. Settings Table. 4.2.1 - 8. Settings of the Phase CT scaling. Name Range Step Default Description Scale • CT nom p.u. •...
Page 68 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description A feedback value; the calculated scaling factor that is the ratio between the set primary current and the set CT scaling nominal current. This parameter is only visible if the factor NOM option "Object In p.u."...
Page 69 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.1 - 11. Per-unit phase current measurements. Name Unit Range Step Description Phase current 0.000…1 The current fundamental frequency component (in p.u.) × In 0.001 250.000 from each of the phase current channels. ("Pha.curr.ILx") Phase current ILx TRMS...
Page 70 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.1 - 15. Per-unit residual current measurements. Name Unit Range Step Description The current measurement fundamental frequency Residual current I0x 0.00…1 × In 0.01 component (in p.u.) from the residual current channel I01 ("Res.curr.I0x") 250.00 or I02.
Page 71 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.1 - 18. Residual phase angle measurements. Name Unit Range Step Description Residual current angle I0x The residual current angle measurement from the I01 or 0.00…360.00 0.01 ("Res.curr.angle I02 current input.
Page 72 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Unit Range Step Description Secondary zero sequence current The secondary measurement from the calculated 0.00…300.00 0.01 ("Sec.Zero sequence zero sequence current. curr.") Table. 4.2.1 - 22. Sequence phase angle measurements. Name Unit Range...
Page 73: Voltage Measurement And Scaling
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.2.2 Voltage measurement and scaling The voltage measurement module (VT module, or VTM) is used for measuring the voltages from voltage transformers. The voltage measurements are updated every 5 milliseconds. The measured values are processed into the measurement database and they are used by measurement and protection functions.
Page 74 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.2 - 69. Connections. The following table presents the initial data of the connection. Table. 4.2.2 - 24. Initial data. P P ha hase v se volta oltage V ge VT T Z Z er ero sequence v...
Page 75 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.2 - 70. Example connections for voltage line-to-line measurement. If only two line-to-line voltages are measured, the third one (U ) is calculated based on the U vectors.
Page 76 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The image collection below presents the device's behavior when nominal voltage is injected into the device via secondary test equipment. The measurement mode is 3LN+U4 which means that the device is measuring line-to-neutral voltages.
Page 77 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Problem Check / Resolution The voltages are connected to the measurement module but the order or polarity of The measured one or all phases is incorrect. In device settings, go to Measurement → Phasors and voltage amplitudes are check the "System voltage vectors"...
Page 78 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Defines how the secondary voltage is scaled to the primary. "Broken Delta" is the most common mode. Does not affect how protection operates, it only affects the displayed primary voltages.
Page 79 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description The selection of the fourth voltage measurement channel's (U4) polarity (direction). The default setting is for the U4 Polarity positive voltage to flow from connector 7 to connector 8, with the secondary voltage's starpoint pointing towards the line.
Page 80 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.2 - 28. Secondary voltage measurements. Name Range Step Description Secondary The secondary voltage measurement fundamental frequency voltage Ux 0.00…500.00V 0.01V component from each of the voltage channels. ("Ux Volt sec") Secondary voltage Ux...
Page 81 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.2 - 32. Secondary sequence voltage measurements. Name Range Step Description Secondary positive 0.00…4 The secondary measurement from the calculated positive sequence voltage 0.01V 800.00V sequence voltage. ("Pos.seq.Volt.sec") Secondary negative 0.00…4...
Page 82 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Description System voltage magnitude 0.00…1 The primary line-to-neutral UL1 voltage fundamental frequency component 0.01V (measured or calculated). You can also select the row where the unit for this is ("System 000.00V volt UL1...
Page 83 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Description System voltage angle UL23 0.00…360.00° 0.01° The primary line-to-line angle UL23 (measured or calculated). ("System volt UL23 ang") System voltage angle UL31 0.00…360.00° 0.01° The primary line-to-line angle UL23 (measured or calculated). ("System volt UL31 ang")
Page 84 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.2 - 36. Harmonic voltage measurements. Name Range Step Description Harmonics calculation values • Percent Defines whether the harmonics are calculated as percentages ("Harm Abs.or • Absolute or absolute values.
Page 85 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.2 - 74. Distance protection characteristics and directional overcurrent. Voltage memory activates when the above-mentioned criteria are met. Voltage memory uses the "VMEM activation voltage" parameter as voltage amplitude even when the actual measured voltage has decreased below it or close to zero.
Page 86 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 VMEM activ VMEM activa a tion v tion volta oltage ge and Mea Measur sured curr ed current condition 3I> ent condition 3I> When the voltage memory function is enabled, it activates when all line voltages drop below the "VMEM activation voltage"...
Page 87: Power And Energy Calculation
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names M1VT1 Voltage memory blocked ON M1VT1 Voltage memory blocked OFF 4.2.3 Power and energy calculation Power is divided into three magnitudes: apparent power (S), active power (P) and reactive power (Q). Energy measurement calculates magnitudes for active and reactive energy.
Page 88 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.2.3 - 78. Three-phase reactive power (Q) calculation. Active power can be to the forward or the reverse direction. The direction of active power can be indicated with the power factor (Cos (φ), or Cosine phi), which is calculated according the following formula: The direction of reactive power is divided into four quadrants.
Page 89 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the line-to-line voltages are measured but the zero sequence voltage is not measured or is not otherwise known, the three-phase power calculation is based on Aron’s theorem: Both cos(φ) and tan(φ) are calculated in the same way as in the line-to-neutral mode.
Page 90 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description • Undefined • Q1 Fwd Cap AV Indicates what the power VA quadrant is at VA Quadrant • Q2 Rev Ind AV Undefined that moment.
Page 91 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description DC 1…4 The set pulse size. An energy pulse 0.005kW/ Pulse 0…1800kW/var 1kW/Var is given every time the set magnitude magnitude is exceeded. DC 1…4 Pulse 0…1800s...
Page 92 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Unit Range Step Description Lx Active power (P) 0.01 The active power of Phase Lx in kilowatts -1x10 …1x10 Lx Reactive power (Q) kVar -1x10 0.01 The reactive power of Phase Lx kilovars …1x10 Lx Tan(phi) 0.01...
Page 93 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.2.3 - 44. Single-phase energy calculations (L1...L3). Name Range Step Description Export Active Energy Lx (kWh or 0.01 The exported active energy of the phase. -1x10 …1x10 MWh) Import Active Energy (kWh or 0.01 The imported active energy of the phase.
Page 94 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Value Name Value Name Value Name Value L1 (S) L1 (S) 4.08 MVA L2 (S) L2 (S) 6.15 MVA L3 (S) L3 (S) 9.77 MVA 3PH (S) H (S) 20.00 MVA L1 (P)
Page 95: Frequency Tracking And Scaling
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Values 3PH (S) 20.00 MVA 3PH (P) 17.32 MW 3PH (Q) 0.00 Mvar 3PH Tan 0.00 3PH Cos 0.87 4.2.4 Frequency tracking and scaling Measurement sampling can be set to the frequency tracking mode or to the fixed user- defined frequency sampling mode.
Page 96 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The measurement error with a fixed 50 Hz sampling The measurement error with frequency tracking frequency when the frequency changes. The constant when the frequency changes. The constant current current is 5 A, the frequency sweep is from 6 Hz to 75 is 5 A, the frequency sweep is from 6 Hz to 75 Hz.
Page 97 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Defines the lower limit for the deviation from the Min. tracking system nomnal frequency to be tracked. If the frequency 0.001…75.000 0.001 0.001 Hz frequency decreases more than allowed from the allowed nominal value, the tracking is discarded and the...
Page 98 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description • Use track Defines the start of the sampling. Sampling can Start sampling frequency Use track begin with a previously tracked frequency, or with with •...
Page 99: General Menu
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.3 General menu The General menu consists of basic settings and indications of the device. Additionally, the all activated functions and their status are displayed in the Protection , Control and Monitor profiles. Table.
Page 100: Protection Functions
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description • All • COM A If the device has a double Ethernet option card it is AQtivate ethernet port • Double possible to choose which ports are available for Ethernet connecting with AQtivate software.
Page 101 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.1 - 79. Simplified function block diagram of the I> function. Measured input The function block uses phase current measurement values. The user can select the monitored magnitude to be equal either to RMS values (fundamental frequency component), to TRMS values from the whole harmonic specter of 32 components, or to peak-to-peak values.
Page 102 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description • Normal • Start • Trip • Blocked • Start A • Start B • Start C • Trip A • Trip B • Trip C Force the status of the function.
Page 103 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.1 - 53. Information displayed by the function. Name Range Step Description • Normal I> • Start Displays status of the protection function. condition • Trip • Blocked •...
Page 104 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and the function does not process the situation further. If the START function has been activated before the blocking signal, it resets and the release time characteristics are processed similarly to when the pick- up signal is reset.
Page 105: Non-Directional Earth Fault Protection (I0>; 50N/51N)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names NOC1...NOC4 Phase C Trip ON NOC1...NOC4 Phase C Trip OFF The function registers its operation into the last twelve (12) time-stamped registers; this information is available for all provided instances separately.
Page 106 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Measured input The function block uses residual current measurement values. The available analog measurement channels are I and I (residual current measurement) and I (residual current calculated from 0Calc phase current).
Page 107 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Pick-up settings The I0 setting parameter controls the the pick-up of the I0> function. This defines the maximum allowed measured current before action from the function. The function constantly calculates the ratio between the I0 and the measured magnitude ( I ) for each of the three phases.
Page 108 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Function blocking The block signal is checked in the beginning of each program cycle. The blocking signal is received from the blocking matrix in the function's dedicated input. Additionally, the function includes an internal inrush harmonic blocking option which is applied according to the parameters set by the user.
Page 109: Directional Overcurrent Protection (Idir>; 67)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names NEF1...NEF4 Block ON NEF1...NEF4 Block OFF The function registers its operation into the last twelve (12) time-stamped registers. The register of the function records the ON event process data for START, TRIP or BLOCKED. The table below presents the structure of the function's register content.
Page 110 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Measured input The function block uses phase current and voltage measurement values. The user can select the monitored current magnitude to be equal either to RMS values (fundamental frequency component), to TRMS values from the whole harmonic specter of 32 components, or to peak-to-peak values.
Page 111 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description • RMS Measured • TRMS Defines which available measured magnitude is used by the function. magnitude • Peak- to-peak Pick-up settings The I setting parameter controls the pick-up of the I> function. This defines the maximum allowed measured current before action from the function.
Page 112 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.3 - 82. Angle tracking of the Idir> function (3LN/3LL + U mode). Please note in the picture above that the tripping area is linked to the angle of the positive sequence voltage U .
Page 113 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.3 - 84. When Idir> function has been set to "Non-directional" the function works basically just like a traditional non-directional overcurrent protection function. Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 114 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Function blocking The block signal is checked in the beginning of each program cycle. The blocking signal is received from the blocking matrix in the function's dedicated input. Additionally, the function includes an internal inrush harmonic blocking option which is applied according to the parameters set by the user.
Page 115: Directional Earth Fault Protection (I0Dir>; 67N/32N)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names DOC1...DOC4 Block ON DOC1...DOC4 Block OFF DOC1...DOC4 No voltage, Blocking ON DOC1...DOC4 Voltage measurable, Blocking OFF DOC1...DOC4 Measuring live angle ON DOC1...DOC4 Measuring live angle OFF DOC1...DOC4 Using voltmem ON DOC1...DOC4...
Page 116 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.4 - 85. Simplified function block diagram of the I0dir> function. Measured input The function block uses residual current measurement values and neutral voltage measurement values. The available residual current measurement channels are I and I (residual current measurement) and I0Calc (residual current calculated from phase current).The user can select the...
Page 117 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 General settings The following general settings define the general behavior of the function. These settings are static i.e. it is not possible to change them by editing the setting group. Table.
Page 118 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description 1…75%U 0.01%U 20%U Voltage pick-up setting • Unearthed [32N Var] • Petersen coil GND [32N Watt] • Grounded Grounding Unearthed Network grounding method type [67N] •...
Page 119 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Unearthed network Figure. 4.4.4 - 86. Angle tracking of I0dir> function (unearthed network model) (32N) When the unearthed (capacitive) network mode is chosen, the function expects the fault current to be lagging zero sequence voltage by 90 degrees.
Page 120 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The resistance of the fault affects the size of the voltage drop during a fault. In direct earth fault the zero sequence voltage amplitude is equal to the system's line-to-earth voltage. In direct earth fault the voltage of a faulty phase drops close to zero and healthy phase voltages increase to the amplitude of line-to-line voltages.
Page 121 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 When the Petersen coil earthed (compensated) network mode is chosen, the function expects the fault current to be in the opposite direction to the zero sequence voltage. Healthy phases of both healthy and faulty feeders produce a capacitive current similar to the unearthed network.
Page 122 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Directly earthed or small impedance network (67N) Figure. 4.4.4 - 88. Angle tracking of I0dir> function (directly earthed or small impedance network). In a directly earthed network the amplitude of a single-phase fault current is similar to the amplitude of a short-circuit current.
Page 123 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Broad range mode with multi-criteria detection for unearthed and compensated networks When detecting earth faults in compensated long-distance cables and overhead lines, it is in some cases difficult to distinguish between a healthy and a faulty feeder. Merely measuring the angle and the magnitude of residual voltage and currents is not always enough, as changes in symmetrical components of phase currents and voltages are also needed.
Page 124 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The new broad range mode is capable of detecting an earth fault directionally in both unearthed and compensated networks not only by combining the two stages together but by using a new multi-criteria detection.
Page 125 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Description Displays which voltage channel is used by the function. If no voltage channel has been selected the function • No U0 avail! U0> defaults to calculated residual voltage if line-to-neutral •...
Page 126 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description harmonic blocking limit 0.10…50.00%I 0.01%I 0.01%I The 2 harmonic blocking limit. fund fund fund (Iharm/Ifund) If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and the function does not process the situation further.
Page 127: Negative Sequence Overcurrent/ Phase Current Reversal/ Current Unbalance Protection (I2>; 46/46R/46L)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event name DEF1...DEF4 I0Sinfi Trip ON DEF1...DEF4 I0Sinfi Trip OFF The function registers its operation into the last twelve (12) time-stamped registers; this information is available for all provided instances separately.
Page 128 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.5 - 91. Simplified function block diagram of the I2> function. Measured input The function block uses positive and negative sequence currents calculated from the phase current measurement channels.
Page 129 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.5 - 79. General settings of the function. Name Range Default Description • Normal I2> force • Start Force the status of the function. Visible only when Enable stage Normal status to •...
Page 130 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and the function does not process the situation further. If the START function has been activated before the blocking signal, it resets and processes the release time characteristics similarly to when the pick-up signal is reset.
Page 131 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.5 - 92. Operation characteristics curve for I2> Curve2. For a more detailed description on the time characteristics and their setting parameters, please refer to the "General properties of a protection function" chapter and its "Operating time characteristics for trip and reset"...
Page 132: Harmonic Overcurrent Protection (Ih>; 50H/51H/68H)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names CUB1...CUB4 Block OFF The function registers its operation into the last twelve (12) time-stamped registers. The register of the function records the ON event process data for START, TRIP or BLOCKED. The table below presents the structure of the function's register content.
Page 133 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.6 - 93. Simplified function block diagram of the Ih> function. Measured input The function block uses analog current measurement values from phase or residual currents. Each measurement input of the function block uses RMS (fundamental frequency component) values and harmonic components of the selected current input.
Page 134 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base The magnitudes (RMS) of phase L2 (B) current components: - Fundamental harmonic harmonic harmonic harmonic harmonic 5 ms harmonic harmonic - 11 harmonic - 13 harmonic - 15 harmonic...
Page 135 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base The magnitudes (RMS) of residual I0 current components: - Fundamental harmonic harmonic harmonic harmonic harmonic 5 ms harmonic harmonic - 11 harmonic - 13 harmonic - 15 harmonic...
Page 136 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description • 2 harmonic • 3 harmonic • 4 harmonic • 5 harmonic • 6 harmonic • 7 Harmonic harmonic Selection of the monitored harmonic component. selection harmonic •...
Page 137 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Pick-up setting Ih/IL 5.00…200.00% 0.01% 20.00% (percentage monitoring) Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 138 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events and registers The harmonic overcurrent function (abbreviated "HOC" in event block names) generates events and registers from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 139: Circuit Breaker Failure Protection (Cbfp; 50Bf/52Bf)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.4.7 Circuit breaker failure protection (CBFP; 50BF/52BF) The circuit breaker failure protection function is used for monitoring the circuit breaker operation after it has received a TRIP signal. The function can also be used to retrip a failing breaker; if the retrip fails, an incoming feeder circuit breaker can be tripped by using the function's CBFP output.
Page 140 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base Fundamental frequency component of residual input I measurement Calculated residual current from the phase current inputs 0Calc General settings The following general settings define the general behavior of the function. These settings are static i.e. it is not possible to change them by editing the setting group.
Page 141 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.7 - 93. Operating mode and input signals selection. Name Range Step Default Description • Not in Selects the residual current monitoring source, which can be Not in I0Input •...
Page 142 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.7 - 95. Information displayed by the function. Name Range Description • Normal • Start CBFP condition • ReTrip Displays status of the protection function. • CBFP On •...
Page 143 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Trip, Retrip and CBFP in the device configuration Figure. 4.4.7 - 95. Wiring diagram when Trip, Retrip and CBFP are configured to the device. The retrip functionality can be used in applications whose circuit breaker has a retrip or a redundant trip coil available.
Page 144 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.7 - 96. Retrip and CBFP when "Current" is the selected criterion. When the current threshold setting of I and/or I0 is exceeded, the current-based protection is activated and the counters for RETRIP and CBFP start calculating the set operating time.
Page 145 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.7 - 97. Retrip and CBFP when "Current and DO" is the selected criterion. When the current threshold setting of I and/or I0 is exceeded, the current-based protection is activated.
Page 146 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.7 - 98. Retrip and CBFP when "Current or DO" is the selected criterion. When the current threshold setting of I and/or I0 is exceeded, or the TRIP signal reaches the primary protection stage, the function starts counting down towards the RETRIP and CBFP signals.
Page 147 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Trip and CBFP in the device configuration Figure. 4.4.7 - 99. Wiring diagram when Trip and CBFP are configured to the device. Probably the most common application is when the device's trip output controls the circuit breaker trip coil, while one dedicated CBFP contact controls the CBFP function.
Page 148 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.7 - 100. CBFP when "Current" is the selected criterion. When the current threshold setting of I and/or I0 is exceeded, the current-based protection is activated and the counter for CBFP starts calculating the set operating time. The tripping of the primary protection stage is not monitored in this configuration.
Page 149 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.7 - 101. CBFP when "Current and DO" is the selected criterion. When the current threshold setting of I and/or I0 is exceeded, the current-based protection is activated.
Page 150 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.7 - 102. CBFP when "Current or DO" is the selected criterion. When the current threshold setting of I and/or I0 is exceeded, or the TRIP signal reaches the primary protection stage, the function starts counting down towards the CBFP signal.
Page 151 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Device configuration as a dedicated CBFP unit Figure. 4.4.7 - 103. Wiring diagram when the device is configured as a dedicated CBFP unit. © Arcteq Relays Ltd IM00013...
Page 152 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Some applications require a dedicated circuit breaker protection unit. When the CBFP function is configured to operate with a digital input signal, it can be used in these applications. When a device is used for this purpose, the tripping signal is wired to the device's digital input and the device's own TRIP signal is used only for the CBFP purpose.
Page 153 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names CBF1 Retrip ON CBF1 Retrip OFF CBF1 CBFP ON CBF1 CBFP OFF CBF1 Block ON CBF1 Block OFF CBF1 DO monitor ON CBF1 DO monitor OFF CBF1 Signal ON...
Page 154: Low-Impedance Or High-Impedance Restricted Earth Fault/ Cable End Differential Protection (I0D>; 87N)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.4.8 Low-impedance or high-impedance restricted earth fault/ cable end differential protection (I0d>; 87N) The low-impedance or high-impedance restricted earth fault function is used for residual differential current measurement for transformers. This function can also be used as the cable end differential function.
Page 155 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base Angle of phase L2 (B) current Angle of phase L3 (C) current Angle of residual input I01 Angle of residual input I02 General settings The following general settings define the general behavior of the function.
Page 156 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description • Residual Selection of the bias current calculation. Differential current (3I0 Bias characteristics biasing can use either the calculated residual + I0Calc)/2 Residual current current averages or the maximum of all measured currents.
Page 157 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.8 - 108. Differential characteristics for the I0d> function with default settings. The equations for the differential characteristics are the following: Figure. 4.4.8 - 109. Differential current (the calculation is based on user-selected inputs and direction). Figure.
Page 158 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 159 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.8 - 112. Cable end differential with natural unbalance in the phase current measurement. When calculating residual current from the phase currents, the natural unbalance can be around 10 % while the used CTs are still within the promised 5P class (which is probably the most common CT accuracy class).
Page 160 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.8 - 113. Cable end differential when a fault occurs. If a starting fault occurs in the cable end, the CED mode catches the difference between the ingoing and the outgoing residual currents.
Page 161 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.8 - 114. Restricted earth fault outside a Y winding transformer. If the fault is located inside of the transformer and thus inside of the protection area, the function catches the fault with high sensitivity.
Page 162 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.8 - 115. Restricted earth fault inside a Y winding transformer. Events and registers The restricted earth fault function (abbreviated "REF" in event block names) generates events and registers from the status changes in the events listed below.
Page 163: Overvoltage Protection (U>; 59)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.8 - 103. Event messages. Event block name Event names REF1 I0d> (87N) Trip ON REF1 I0d> (87N) Trip OFF REF1 I0d> (87N) Block ON REF1 I0d> (87N) Block OFF The function registers its operation into the last twelve (12) time-stamped registers.
Page 164 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.9 - 116. Simplified function block diagram of the U> function. Measured input The function block uses fundamental frequency component of line-to-line or line-to-neutral (as the user selects).
Page 165 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.9 - 117. Selectable measurement magnitudes with 3LN+U4 VT connection. Figure. 4.4.9 - 118. Selectable measurement magnitudes with 3LL+U4 VT connection (P-E voltages not available without residual voltage). ©...
Page 166 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.9 - 119. Selectable measurement magnitudes with 2LL+U3+U4 VT connection (P-E voltages not available without residual voltage). P-P Voltages and P-E Voltages selections follow phase-to-neutral or phase-to-phase voltages in the first three voltage channels (or two first voltage channels in the 2LL+U3+U4 mode).
Page 167 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.9 - 108. Pick-up settings. Name Range Step Default Description • 1 voltage Operation mode • 2 voltages 1 voltage Pick-up criteria selection • 3 voltages 50.00…150.00%U 0.01%U 105%U Pick-up setting...
Page 168 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and the function does not process the situation further. If the START function has been activated before the blocking signal, it resets and the release time characteristics are processed similarly to when the pick- up signal is reset.
Page 169 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description This setting is active and visible when IDMT is the selected IDMT delay type. 0.01…25.00s 0.01s 1.00s Multiplier IDMT time multiplier in the U power.
Page 170: Undervoltage Protection (U<; 27)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The function registers its operation into the last twelve (12) time-stamped registers; this information is available for all provided instances separately. The register of the function records the ON event process data for START, TRIP or BLOCKED.
Page 171 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.10 - 114. Measurement input of the U> function. Signal Description Time base Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U...
Page 172 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.10 - 122. Selectable measurement magnitudes with 3LL+U4 VT connection (P-E voltages not available without residual voltage). Figure. 4.4.10 - 123. Selectable measurement magnitudes with 2LL+U4 VT connection (P-E voltages not available without residual voltage).
Page 173 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.10 - 116. General settings of the function. Name Range Default Description • Normal U< force • Start Force the status of the function. Visible only when Enable stage Normal status to •...
Page 174 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 175 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The variables the user can set are binary signals from the system. The blocking signal needs to reach the device minimum of 5 ms before the set operating delay has passed in order for the blocking to activate in time.
Page 176 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.10 - 120. Setting parameters for reset time characteristics. Name Range Step Default Description Resetting time. The time allowed between pick-ups if the Release pick-up has not led to a trip operation. During this time the 0.000…150.000s 0.005s 0.06s time delay START signal is held on for the timers if the delayed pick-up...
Page 177: Neutral Overvoltage Protection (U0>; 59N)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The function registers its operation into the last twelve (12) time-stamped registers; this information is available for all provided instances separately. The register of the function records the ON event process data for START, TRIP or BLOCKED.
Page 178 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.11 - 126. Earth fault in isolated network. Figure. 4.4.11 - 127. Close-distance short-circuit between phases 1 and 3. Figure. 4.4.11 - 128. Simplified function block diagram of the U0> function. Measured input The function block uses phase-to-neutral voltage magnitudes or calculated zero sequence component (as the user selects).
Page 179 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.11 - 123. Measurement inputs of the U0> function. Signal Description Time base Fundamental frequency component of U0/V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U...
Page 180 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Description Displays which voltage channel is used by the function. If no • No U0 avail! voltage channel has been selected the function defaults to U0>...
Page 181 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Where: • t = operating time • k = time dial setting • U = measured voltage • U = pick-up setting • a = IDMT multiplier setting The following table presents the setting parameters for the function's time characteristics.
Page 182 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Continue time Time calculation characteristics selection. If activated, the calculation • No operating time counter continues until a set release time has during •...
Page 183: Sequence Voltage Protection (U1/U2>/<; 47/27P/59Pn)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Register Description Pre-trigger voltage Start/Trip -20ms voltage Fault voltage Start/Trip voltage Pre-fault voltage Start -200ms voltage Trip time remaining 0 ms...1800s Setting group in use Setting group 1...8 active 4.4.12 Sequence voltage protection (U1/U2>/<;...
Page 184 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.12 - 130. Earth fault in an isolated network. Figure. 4.4.12 - 131. Close-distance short-circuit between phases 1 and 3. Negative sequence voltage calculation Below is the formula for symmetric component calculation (and therefore to negative sequence voltage calculation).
Page 185 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.12 - 133. Earth fault in isolated network. Figure. 4.4.12 - 134. Close-distance short-circuit between phases 1 and 3. Figure. 4.4.12 - 135. Simplified function block diagram of the U1/U2>/< function. ©...
Page 186 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Measured input The function block uses fundamental frequency component of phase-to-phase, phase-to-neutral and zero sequence voltage measurements. The user can select the monitored magnitude to be either positive sequence voltage or negative sequence voltage values. Table.
Page 187 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.12 - 132. Pick-up settings. Name Range Step Default Description Pick- • Over > Selects whether the function picks-up when the monitored Over> • Under< voltage is under or over the set pick-up value. terms 5.00…150.00%U 0.01%U...
Page 188 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Description Time When the function has detected a fault and counts down remaining -1800.000...1800.000s 0.005s time towards a trip, this displays how much time is left to trip before tripping occurs.
Page 189 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.12 - 134. Setting parameters for operating time characteristics. Name Range Step Default Description Selection of the delay type time counter. The selection Delay • DT possibilities are dependent (IDMT, Inverse Definite Minimum type •...
Page 190 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events and registers The sequence voltage function (abbreviated "VUB" in event block names) generates events and registers from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 191: Overfrequency And Underfrequency Protection (F>/<; 81O/81U)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.4.13 Overfrequency and underfrequency protection (f>/<; 81O/81U) The frequency protection function can be used both in overfrequency and in underfrequency situations, and it has four (4) stages for both. Frequency protection can be applied to protect feeder, bus, transformer, motor and generator applications.
Page 192 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.13 - 138. Simplified function block diagram of the f< function. Measured input The frequency protection function compares the measured frequency to the pick-up setting (given in Hz).
Page 193 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description f> force status to f>> force status to f>>> force status to f>>>> force • Normal Force the status of the function. Visible only when Enable stage status to •...
Page 194 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.13 - 141. Information displayed by the function. Name Range Step Description • Normal • Start f</> condition Displays the status of the protection function. • Trip •...
Page 195: Rate-Of-Change Of Frequency (Df/Dt>/<; 81R)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names FRQV1 f>/< Blocked OFF The function registers its operation into the last twelve (12) time-stamped registers. The table below presents the structure of the function's register content. Table.
Page 196 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.14 - 139. Operation of the df/dt>/< function when the frequency starts but doesn’t trip. The figure above presents an example of the df/dt>/< function's operation when the frequency is decreasing.
Page 197 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Measured input The rate-of-change of frequency protection function compares the measured df/dt>/< ratio to the pick- up setting (given in Hz/s). There are three (3) frequency references available. Please refer to "Frequency tracking and scaling"...
Page 198 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Defines the operation mode of the protection stage. • Rising In "Rising" mode df/dt function can trip only from df/dt>/< (1…8) • Falling Rising increasing frequency.
Page 199 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Function blocking The block signal is checked in the beginning of each program cycle. The blocking signal is received from the blocking matrix in the function's dedicated input. If the blocking signal is not activated when the pick-up element activates, a START signal is generated and the function proceeds to the time characteristics calculation.
Page 200: Overpower Protection (P>; 32O)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Register Description f Fault (Hz) Fault frequency Setting group in use Setting group 1...8 active 4.4.15 Overpower protection (P>; 32O) The overpower function is used for instant and time-delayed active over-power protection. In applications like feeder, generator and motor protection this function is used to detect overload situations by measuring three-phase active power.
Page 201 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Measured input The function block uses three phase currents and line-to-neutral or line-to-line voltages to calculate active power. Please refer to "Power and energy calculation" chapter for a detailed description of power calculation.
Page 202 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 203: Underpower Protection (P<; 32U)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The function offers one (1) independent stage. Table. 4.4.15 - 154. Event messages. Event block name Event names OPW1 Start ON OPW1 Start OFF OPW1 Trip ON OPW1 Trip OFF OPW1 Block ON...
Page 204 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.16 - 143. Operating characteristics of underpower protection. Figure. 4.4.16 - 144. Simplified function block diagram of the P< function. Measured input The function block uses three phase currents and line-to-neutral or line-to-line voltages to calculate active power.
Page 205 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base Fundamental frequency component of phase L3 (C) current measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U...
Page 206 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.16 - 158. Pick-up settings. Name Range Step Default Description < 0.0…100 000kW 0.01kW 100kW Pick-up setting < 0.0…100 000kW 0.01kW 50kW Low power block Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function.
Page 207: Reverse Power Protection (Pr; 32R)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events and registers The underpower function (abbreviated "UPW" in event block names) generates events and registers from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 208 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.17 - 146. Operating characteristics of reverse power protection. Figure. 4.4.17 - 147. Simplified function block diagram of the Pr function. Measured input The function block uses three phase currents and line-to-neutral or line-to-line voltages to calculate active power.
Page 209 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement General settings...
Page 210 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Description Expected Displays the expected operating time when a fault 0.000...1800.000s 0.005s operating time occurs. When the function has detected a fault and counts Time remaining -1800.000...1800.000s 0.005s down time towards a trip, this displays how much time to trip...
Page 211: Line Thermal Overload Protection (Tf>; 49F)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names RPW1 Block ON RPW1 Block OFF The function registers its operation into the last twelve (12) time-stamped registers. The register of the function records the ON event process data for START, TRIP or BLOCKED. The table below presents the structure of the function's register content.
Page 212 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 • I = Current for the 100 % thermal capacity to be used (the pick-up current in p.u., t achieved in τ x 5) • k = Loading factor (service factor), the maximum allowed load current in p.u., dependent on the protected object or the cable/line installation •...
Page 213 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The described behavior is based on the assumption that the monitored object (whether a cable, a line or an electrical device) has a homogenous body which generates and dissipates heat with a rate proportional to the temperature rise caused by the current squared.
Page 214 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 149. Ambient temperature coefficient calculation (a three-point linear approximation and a settable correction curve). As can be seen in the diagram above, the ambient temperature coefficient is relative to the nominal temperature reference.
Page 215 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 151. Settings of the function's ambient temperature coefficient curve. The temperature and correction factor pairs are set to the function's settable curve. © Arcteq Relays Ltd IM00013...
Page 216 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 152. Set correction curve for ambient temperature. The correction curve for ambient temperature is shown in the figure above. The reference temperature for underground cables is usually +15 ̊ C which gives a correction factor of 1.00 (in this case also the nominal temerature).
Page 217 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 153. Example of a high-voltage cable datasheet. The datasheet shows the currents which in a combination with a specific installation and a specific construction method achieve a specific conductor temperature in give standard conditions (e.g. a copper conductor reaches a temperature of 90 °C when, for example, it has a continuous current- carrying capacity of 815 A, an open screen circuit, and is laid in a trefoil formation in soil whose temperature is 15 °C).
Page 218 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 154. General presumptions of high-voltage cables. If the installation conditions vary from the presumed conditions manufacturers may give additional information on how to correct the the current-carrying capacity to match the changed conditions. Below is an example of the correction factors provided a manufacturer (Prysmian) for correcting the current-carrying capacity.
Page 219 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 155. Example of correction factors for the current-carrying capacity as given by a manufacturer. © Arcteq Relays Ltd IM00013...
Page 220 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 To demonstrate the importance of the k (service factor, current-carrying capacity), let us calculate a cable installation with the correct k factor but without setting it to correct value. First we read the initial data for the setup of the thermal image: A 66 kV copper cable with a cross-section of 500 mm is installed into ground.
Page 221 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 156. Thermal image response with nominal load (installation according to presumptions). As the results show, the end temperature of 68.39 ̊ C is reached when the cable is loaded with a stable current for time equalling five times the time constant τ.
Page 222 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 157. Thermal image response with maximum load (installation according presumptions). The maximum allowed load results in the end temperature of 89.68 ̊ C which means that 99.57 % of the thermal capacity is used.
Page 223 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Therefore, the settings are as follows: • I = 680 A • T = 90 ̊ C • T = 15 ̊ C • T = 15 ̊ C •...
Page 224 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 159. Thermal response with k factor correctly set. When the installation conditions vary from the presumptive conditions, the cable's current-carrying capacity can be reduced so that the temperature of 90 ̊ C is achieved with a 550 A current instead of the 680 A current given in the initial data.
Page 225 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 θ = (I meas Where: • I = the measured current meas • I = the calculated effective nominal current Calcula Calculat t ed time constant: ed time constant: (-0.005[s]×(Tc[min]×60)[s]) τ=e Where:...
Page 226 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.4.18 - 160. Simplified function block diagram of the TF> function. Measured input The function block uses phase current measurement values. The function block uses TRMS values from the whole harmonic specter of 32 components.
Page 227 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.4.18 - 170. Settings for thermal replica. Name Range Step Default Description thermal The current for the 100 % thermal capacity to be used (the 0.10…40.00xI 0.01xI 1.00xI pick-up current in p.u., with t achieved in time τ...
Page 228 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Ambient • Manual set Manual The selection of whether fixed or measured ambient temp. sel. • RTD temperature is used for the thermal image biasing. The manual fixed ambient temperature setting for the Man.
Page 229 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description The selection of whether or not the curve temperature/ coefficient pair is in use. The minimum number to be set for the temperature/coefficient curve is two pairs and the maximum is ten pairs.
Page 230 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description TF> The trip signal's additional delay. This delay delays the trip Trip 0.000…3600.000s 0.005s 0.000s signal generation by a set time. The default setting is 0.000 s delay which does not give an added time delay for the trip signal.
Page 231 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Description • Nominal current calc TF> • Nominal Indicates if nominal current calculation is set wrong and actually used setting is Setting current set 1.0. Visible only when there is a setting fault. alarm fault.
Page 232 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Description / values Restart inhibits The number of times the function has activated the Restart inhibit output Trips The number of times the function has tripped Trips Blocked The number of times the function trips has been blocked Events and registers The line thermal overload protection function (abbreviated "TOLF"...
Page 233: Control Functions
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Description Active meas. current T at a given moment Max. temp. rise allowed degrees Temp. rise at a given moment degrees Hot spot estimate degrees Hot spot maximum allowed degrees Trip delay rem.
Page 234: Setting Group Selection
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 235 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.2 - 161. Simplified function block diagram of the setting group selection function. Setting group selection can be applied to each of the setting groups individually by activating one of the various internal logic inputs and connected digital inputs.
Page 236 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Settings and signals The settings of the setting group control function include the active setting group selection, the forced setting group selection, the enabling (or disabling) of the forced change, the selection of the number of active setting groups in the application, as well as the selection of the setting group changed remotely.
Page 237 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.2 - 183. Signals of the setting group selection function. Name Description Setting The selection of Setting group 1 ("SG1"). Has the highest priority input in setting group control. Can be group controlled with pulses or static signals.
Page 238 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.2 - 163. Setting group control – one-wire connection from Petersen coil status. Depending on the application's requirements, the setting group control can be applied either with a one-wire connection or with a two-wire connection by monitoring the state of the Petersen coil connection.
Page 239 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.2 - 164. Setting group control – two-wire connection from Petersen coil status. © Arcteq Relays Ltd IM00013...
Page 240 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.2 - 165. Setting group control – two-wire connection from Petersen coil status with additional logic. The images above depict a two-wire connection from the Petersen coil: the two images at the top show a direct connection, while the two images on the bottom include additional logic.
Page 241 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.2 - 166. Entirely application-controlled setting group change with the cold load pick-up function. In these examples the cold load pick-up function's output is used for the automatic setting group change.
Page 242: Object Control And Monitoring
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names Remote Change SG Request OFF Local Change SG Request ON Local Change SG Request OFF Force Change SG ON Force Change SG OFF SG Request Fail Not configured SG ON SG Request Fail Not configured SG OFF Force Request Fail Force ON...
Page 243 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.3 - 167. Simplified function block diagram of the object control and monitoring function. Settings The following parameters help the user to define the object. The operation of the function varies based on these settings and the selected object type.
Page 244 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description • Withdrawable The selection of the object type. This selection defines the circuit breaker number of required digital inputs for the monitored object. This •...
Page 245 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.3 - 186. Object types. Name Functionalities Description Breaker cart position Circuit breaker position Circuit breaker control Withdrawable circuit Object ready check before The monitor and control configuration of the breaker closing breaker withdrawable circuit breaker.
Page 246 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.3 - 188. Operation settings. Name Range Step Default Description Determines the maximum time between open and close statuses when the breaker switches. If this set time is exceeded and both Breaker 0.02…500.00 0.02...
Page 247 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Blocking and interlocking The interlocking and blocking conditions can be set for each controllable object, with Open and Close set separately. Blocking and interlocking can be based on any of the following: other object statuses, a software function or a digital input.
Page 248 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events and registers The object control and monitoring function (abbreviated "OBJ" in event block names) generates events and registers from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 249 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Description OBJ1...OBJ5 Open Command Fail OBJ1...OBJ5 Close Command Fail OBJ1...OBJ5 Final trip On OBJ1...OBJ5 Final trip Off OBJ1...OBJ5 Contact Abrasion Alarm On OBJ1...OBJ5 Contact Abrasion Alarm Off OBJ1...OBJ5 Switch Operating Time Exceeded On OBJ1...OBJ5...
Page 250: Indicator Object Monitoring
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.5.4 Indicator object monitoring The indicator object monitoring function takes care of the status monitoring of disconnectors. The function's sole purpose is indication and does not therefore have any control functionality. To control circuit breakers and/or disconnectors, please use the Object control and monitoring function.
Page 251: Auto-Recloser (79)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events The indicator object monitoring function (abbreviated "CIN" in event block names) generates events from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 252 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The user can select whether there is a set time delay (called 'arcing time') between shots to burn the fault-causing object from the line, or whether normal protection operating times are applied. When a fault is not present when the breaker is closed but reappears soons after (called 'discrimination time' and 'reclaim time'), the auto-recloser function can either arm another shot or give the final trip command and the feeder becomes locked.
Page 253 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 This type of application normally uses an auto-recloser with two shots (one high-speed and one delayed) which are triggered by earth fault protection or overcurrent protection. Short-circuit protection is used for interlocking the auto-recloser in case a clear short-circuit fault occurs in the line.
Page 254 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 • from Start with two shots (high-speed succeeds). The signal status graphs describe the statuses of available requests, the statuses of the auto- recloser's internal signals, the statuses of the timers, the breaker controls from the auto- recloser function as well as the breaker status signals.
Page 255 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.5 - 173. Signal status graph of the permanent earth fault auto-recloser cycle. 1. An earth fault is found in the protected line causing the I0Dir> protection to start calculating the operating time for a trip.
Page 256 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 10. The I0Dir> stage trips a third time and gives the REQ2 request to the function. However, as the function is in the process of calculating the S S ho hot2 R t2 Reclaim T eclaim Time...
Page 257 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.5 - 175. Signal status graph of the semi-permanent earth fault auto-recloser cycle. 1. An earth fault is found in the protected line causing the I0Dir> protection to start calculating the operating time for a trip.
Page 258 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 10. The S S ho hot2 R t2 Reclaim T eclaim Time ime (10 s) is exceeded, and so the AR Running AR Running, S S ho hot 2 Running t 2 Running and AR2 R R equest equested...
Page 259 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 1. An earth fault is found in the protected line causing the I0Dir> protection to start calculating the operating time for a trip. 2. The I0Dir> trips and gives the "Open" command to the breaker's open coil. The auto- recloser function is initiated and the AR Running AR Running, AR2 R AR2 Request...
Page 260 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.5 - 179. Signal status graph of the permanent overcurrent auto-recloser cycle. 1. An overcurrent is found in the protected line causing the I> protection to pick up. This activates the AR1 R AR1 Request equested...
Page 261 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 11. The circuit breaker is opened and the I> function's START signal is released, and simultaneously the REQ1 trip signal for auto-reclosing is released. The function is now in a steady lock-out state and waits for the user to manually reset and re-initialize the function by closing the breaker.
Page 262 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 2. The S S ho hot1 Star t1 Start T t Time ime (500 ms) for has elapsed and the auto-recloser function starts running (AR Running Running). This sends an "Open" command to the breaker. 3.
Page 263 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.5 - 183. Signal status graph of the transient overcurrent auto-recloser cycle. 1. An overcurrent is found in the protected line causing the I> protection to pick up. This activates the AR1 R AR1 Request equested...
Page 264 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Auto-recloser in meshed or ring networks A typical auto-recloser scheme cannot be applied directly to an overhead line network that has a distributed generation (DG) component; this situation will become more common as renewable power sources become more widespread.
Page 265 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The auto-recloser is sometimes used in time-coordinated, IDMT-protected networks that have old mechanical relays with current-dependent release times. In these cases the operation of the protection selectivity must be guaranteed by allowing all relay timing devices to completely reset during dead time to maintain the correct time discrimination after reclosing to the fault.
Page 266 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.5 - 185. Simplified function block diagram of the auto-recloser function. As the diagram above shows, the auto-recloser function is tied to and dependent on the block status information and configuration of the object control and monitoring function.
Page 267 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Range Description Any binary Manual signal in the Allows for the manual resetting of the recloser if locked (e.g. due to Final Trip). reset device Any binary Locks the auto-recloser so that it requires a manual reset before its operation can be signal in the Locking...
Page 268 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description The signal "AR1 Request ON" is activated and displayed when the function is executing a shot Request requested by REQ1. The signal "AR2 Request ON" is activated and displayed when the function is executing a shot Request requested by REQ2.
Page 269 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Operation The signal "AR Operation inhibit" is activated and displayed when the function is in Inhibit mode. inhibit AR Locked The signal "AR Locked" is activated and displayed when the function is in Locked mode. Setting parameters The auto-recloser function has settings that the user can freely configure.
Page 270 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Setting Range Default Description • AR is inhibit • AR is ready • AR is locked • AR is running • AR is not running • Lock out delay is running •...
Page 271 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.5 - 199. AR General settings. Setting Range Step Default Description • Object 1 Defines the monitored and/or controlled object, and the • Object 2 Object for monitoring and/or controlling signals issued.
Page 272 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Setting Range Step Default Description Defines the starting delay of the shot, i.e. the minimum time an ARx request has to be active before openign the breaker and entering the dead time delay counting.
Page 273 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.5 - 186. Auto-recloser shot setting parameters. The auto-recloser function's shot settings are grouped into corresponding rows to make the setting of each shot straightforward. From the settings the user can see how the reclosing cycle is executed by each request, which functions initiate requests, and which shots and requests are in use.
Page 274 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The setting example in the image above presents a two-shot auto-recloser. One can see that the REQ1 is started by I> START signal. The starting delay is 500 ms, followed by a 200 ms dead time; after a 200 ms "Arcing"...
Page 275 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events and registers The auto-recloser function (abbreviated "AR" in event block names) generates events and registers from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 276 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names AR1 Request OFF AR2 Request ON AR2 Request OFF AR3 Request ON AR3 Request OFF AR4 Request ON AR4 Request OFF AR5 Request ON AR5 Request OFF Critical request ON Critical request OFF...
Page 277 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names Dead time ON Dead time OFF Arc Discr time ON Arc Discr time OFF Shot reclaim time ON Shot reclaim time OFF Sequence finished OFF Final trip executed OFF Object "Close"...
Page 278 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Date and time Registers dd.mm.yyyy AR Status: AR is ready, AR is not running, AR2 Requested, Executing Shot 1 hh:mm:ss.mss AR Timers: No timers running 0.000 s AR Status: AR is ready, AR is not running, Start time counting, AR2 Requested, Executing dd.mm.yyyy Shot 1 hh:mm:ss.mss...
Page 279 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 dd.mm.yyyy hh:mm:ss.mss 4044 AR1 Object "Close" request dd.mm.yyyy hh:mm:ss.mss 2957 OBJ1 Close request ON dd.mm.yyyy hh:mm:ss.mss 2958 OBJ1 Close Fail dd.mm.yyyy hh:mm:ss.mss 2959 OBJ1 Close request OFF dd.mm.yyyy hh:mm:ss.mss 2960 OBJ1 Close command ON dd.mm.yyyy hh:mm:ss.mss...
Page 280: Cold Load Pick-Up (Clpu)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.5.6 Cold load pick-up (CLPU) The cold load pick-up function is used for detecting so-called cold load situations, where a loss of load diversity has occured after distribution has been re-energized. The characteristics of cold load situations vary according to the types of loads individual feeders have.
Page 281 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Setting group selection controls the operating characteristics of the function, i.e. the user or user- defined logic can change function parameters while the function is running. Table. 4.5.6 - 204. Pick-up settings. Name Range Step...
Page 282 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.6 - 206. Setting parameters for operating time characteristics. Name Range Step Default Description The function's start timer which defines how long the I 0.000…1800.000s 0.005s 10.000s condition has to last before the cold load pick-up is activated.
Page 283 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 In the example above, the cold load pick-up function activates after the measured current dips below the I setting and has been there for T amount of time. When the current exceeds the I setting high value, a timer starts counting towards the T...
Page 284 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.6 - 190. Example of timers and pick-up parameters (activated pick-up and instant release due to overcurrent). In the example above, the cold load pick-up function activates after the measured current dips below the I setting and has been there for T amount of time.
Page 285 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.6 - 191. Example of timers and pick-up parameters (activated pick-up and instant release due to too long starting). In the example above, the cold load pick-up function activates after the measured current has stayed below the I setting for a T amount of time.
Page 286 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.6 - 192. Example of timers and pick-up parameters (no inrush current detected in the starting). In the example above, the cold load pick-up function activates after the measured current has stayed below the I setting for a T amount of time.
Page 287 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.6 - 193. Example of timers and pick-up parameters (an inrush current detected during T time). In the example above, the cold load pick-up function activates after the measured current has stayed below the I setting for a T amount of time.
Page 288: Switch-On-To-Fault (Sotf)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Event block name Event names CLP1 HighStart OFF CLP1 LoadNormal ON CLP1 LoadNormal OFF CLP1 Overcurrent ON CLP1 Overcurrent OFF CLP1 CLPUActivated ON CLP1 CLPUActivated OFF CLP1 Block ON CLP1 Block OFF The function registers its operation into the last twelve (12) time-stamped registers.
Page 289 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.7 - 194. Simplified function block diagram of the switch-on-to-fault function. Input signals The function block does not use analog measurement inputs. Instead, its operation is based entirely on binary signal statuses.
Page 290 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description Release time 0.000…1800.000s 1.000s The time the function is active after triggering. for SOTF Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 291: Synchrocheck (Δv/Δa/Δf; 25)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The function registers its operation into the last twelve (12) time-stamped registers. The register of the function records the ON process data of ACTIVATED events. The table below presents the structure of the function's register content.
Page 292 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The seven images below present three different example connections and four example applications of the synchrocheck function. Figure. 4.5.8 - 195. Example connection of the synchrocheck function (3LN+U4 mode, SYN1 in use, UL1 as reference voltage).
Page 293 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.8 - 197. Example connection of the synchrocheck function (2LL+U3+U4 mode, SYN3 in use, UL12 as reference voltage). Figure. 4.5.8 - 198. Example application (synchrocheck over one breaker, with 3LL and 3LN VT connections). ©...
Page 294 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.8 - 199. Example application (synchrocheck over one breaker, with 2LL VT connection). © Arcteq Relays Ltd IM00013...
Page 295 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.8 - 200. Example application (synchrocheck over two breakers, with 2LL VT connection). © Arcteq Relays Ltd IM00013...
Page 296 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.8 - 201. Example application (synchrocheck over three breakers, with 2LL+U3+U4 connection). NOTICE! TICE! When synchrocheck is used over three breakers, SYN1 and SYN2 must have the same reference voltage.
Page 297 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.8 - 202. System states. Figure. 4.5.8 - 203. Simplified function block diagram of the SYN1 and SYN2 function. © Arcteq Relays Ltd IM00013...
Page 298 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.8 - 204. Simplified function block diagram of the SYN3 function. Measured input The function block uses user selected voltage channels. The function monitors frequency, angle and fundamental frequency component value of the selected channels.
Page 299 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.8 - 216. Information displayed by the function. Name Range Step Description • SYN1 Blocked • SYN1 Ok • SYN1 Bypass • SYN1 SYN condition Vcond Ok Displays status of the control function.
Page 300 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Setting parameters NOTE! TE! Before these settings can be accessed, a voltage channel (U3 or U4) must be set into the synchrocheck mode ("SS") in the voltage transformer settings ( Measurements → VT Module ). The general settings can be found at the synchrocheck function's INFO tab, while the synchrocheck stage settings can be found in the Settings tab ( Control →...
Page 301 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Estimated Displays the estimated time until networks are 0.000…360.000s 0.005s closing synchronized. time Networks Displays the time it takes for both sides of the rotating 0.000…360.000s 0.005s...
Page 302 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events and registers The synchrocheck function (abbreviated "SYN" in event block names) generates events and registers from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 303: Programmable Control Switch
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range SYNx Ref2 voltage The reference voltage of the selected stage. SYNx Volt Cond The voltage condition of the selected stage. SYNx Volt status The voltage status of the selected stage. SYNx Vdiff The voltage difference of the selected stage.
Page 304: Analog Input Scaling Curves
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events The programmable control switch function (abbreviated "PCS" in event block names) generates events from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 305 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Scaling curve • Disabled Enables and disables the scaling curve and Disabled 1...10 • Activated the input measurement. • S7 mA Input • S8 mA Input •...
Page 306 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 The input signal filtering parameter calculates the average of received signals according to the set time constant. This is why rapid changes and disturbances (such as fast spikes) are smothered. The Nyquist rate states that the filter time constant must be at least double the period time of the disturbance process signal.
Page 307: Logical Outputs
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.5.11 Logical outputs Logical outputs are used for sending binary signals out from a logic that has been built in the logic editor. Logical signals can be used for blocking functions, changing setting groups, controlling digital outputs, activating LEDs, etc.
Page 308: Logical Inputs
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Events The logical outputs (abbreviated "LOGIC" in event block names) generates events from the status changes in the events listed below. The user can select which event messages are stored in the main event buffer: ON, OFF, or both.
Page 309 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.5.12 - 207. Extending a logical input pulse. Logical input descriptions Logical inputs can be given a description. The user defined description are displayed in most of the menus: •...
Page 310: Monitoring Functions
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.5.12 - 228. Event messages. Event block name Event names LOGIC2 Logical in 1...32 ON LOGIC2 Logical in 1...32 OFF 4.6 Monitoring functions 4.6.1 Current transformer supervision The current transformer supervision function (abbreviated CTS in this document) is used for monitoring the CTs as well as the wirings between the device and the CT inputs for malfunctions and wire breaks.
Page 311 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.1 - 209. Simplified function block diagram of the CTS function. Measured input The function block uses fundamental frequency component of phase current measurement values and residual current measurement values. The function supervises the angle of each current measurement channel.
Page 312 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base Fundamental frequency component of phase L3 (C) current Fundamental frequency component of residual input I01 Fundamental frequency component of residual input I02 General settings The following general settings define the general behavior of the function.
Page 313 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Step Default Description Determines the pick-up threshold for phase current measurement. This setting limit defines the lower limit for 0.01…40.00×I 0.01×I 0.10×I the phase current's pick-up element. limit This condition has to be met for the function to activate.
Page 314 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and the function does not process the situation further. If the START function has been activated before the blocking signal, it resets and the release time characteristics are processed similarly to when the pick- up signal is reset.
Page 315 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.1 - 211. Secondary circuit fault in phase L1 wiring. When a fault is detected and all conditions are met, the CTS timer starts counting. If the situation continues until the set time has passed, the function issues an alarm.
Page 316 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.1 - 213. No wiring fault but heavy unbalance. If any of the phases exceed the I high limit setting, the operation of the function is not activated. This behavior is applied to short-circuits and earth faults even when the fault current exceeds the I high limit setting.
Page 317 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the I high limit and I low limit setting parameters are adjusted according to the application's normal behavior, the operation of the function can be set to be very sensitive for broken circuit and conductor faults.
Page 318 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 When phase current wire is broken all of the conditions are met in the CTS and alarm shall be issued in case if the situation continues until the set alarming time is met. Figure.
Page 319: Voltage Transformer Supervision (60)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 In this example there is a high-impedance earth fault. It does not activate the function, if the measurement conditions are met, while the calculated and measured residual current difference does not reach the limit.
Page 320 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.2 - 219. Secondary circuit fault in phase L1 wiring. Figure. 4.6.2 - 220. Simplified function block diagram of the VTS function. Measured input The function block uses fundamental frequency component of voltage measurement channels. The function uses calculated positive, negative and zero sequence voltages.
Page 321 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Time base Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Fundamental frequency component of U /V voltage measurement Pick-up settings The Voltage low pick-up and Voltage high detect setting parameters control the voltage-dependent pick-up and activation of the voltage transformer supervision function.
Page 322 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Description Bus Live VTS problem Any of the VTS pick-up conditions are met. Read-only parameters The function's Info page displays useful, real-time information on the state of the protection function. It is accessed either through the device's HMI display, or through the setting tool software when it is connected to the device and its Live Edit mode is active.
Page 323 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Operating time characteristics for activation This function supports definite time delay (DT). For detailed information on these delay types please refer to the chapter "General properties of a protection function" and its section "Operating time characteristics for trip and reset".
Page 324: Circuit Breaker Wear Monitoring
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Register Description • No voltage Volt 1, 2, 3, 4 status • Voltage OK • Low voltage • Bus dead • Bus live, VTS OK, Seq. OK System status •...
Page 325 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.3 - 222. Simplified function block diagram of the circuit breaker wear function. Measured input The function block uses fundamental frequency component of phase current measurement values. Table.
Page 326 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.3 - 242. Settings for circuit breaker characteristics. Name Range Step Default Description Operations The number of interrupting life operations at the nominal 0…200 000 50 000 current (Close - Open).
Page 327 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Now, we set the stage as follows: Parameter Setting Current 1 0.80 kA Operation 1 30 000 operations Current 2 16.00 kA Operations 2 100 operations Enable Alarm 1 Enabled Alarm 1 Set 1000 operations...
Page 328 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 With these settings, Alarm 1 is issued when the cumulative interruption counter for any of the three phases dips below the set 1000 remaining operations ("Alarm 1 Set"). Similarly, when any of the counters dips below 100 remaining operations, Alarm 2 is issued.
Page 329: Current Total Harmonic Distortion (Thd)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.3 - 246. Register content. Register Description Date and time dd.mm.yyyy hh:mm:ss.mss Event Event name Trigger current Phase currents on trigger time Deducted Op L1/L2/L3 Deducted operations from the cumulative sum Operations left L1/L2/L3 Operations left 4.6.4 Current total harmonic distortion (THD)
Page 330 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.4 - 224. Simplified function block diagram of the total harmonic distortion monitor function. Measured input The function block uses phase and residual current measurement channels. The function always uses FFT measurement of the whole harmonic specter of 32 components from each measured current channel.
Page 331 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Pick-up settings The Phase , I01 and I02 s etting parameters control the the pick-up and activation of the function. They define the maximum allowed measured current THD before action from the function. Before the function activates alarm signals, their corresponding pick-up elements need to be activated with the setting parameters Enable phase THD alarm , Enable I01 THD alarm and Enable I02 THD alarm .
Page 332 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.4 - 250. Information displayed by the function. Name Range Description • Normal • Start THD condition Displays status of the monitoring function. • Alarm • Blocked Function blocking The block signal is checked in the beginning of each program cycle.
Page 333: Fault Locator (21Fl)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.4 - 252. Event messages. Event block name Event names THD1 THD Start Phase ON THD1 THD Start Phase OFF THD1 THD Start I01 ON THD1 THD Start I01 OFF THD1 THD Start I02 ON THD1...
Page 334 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Measured input Function block uses fundamental frequency component of current and voltage measurements to calculate phase-to-phase or phase-to-ground loop impedances. Table. 4.6.5 - 254. Measurement inputs of the 21FL function. Signal Description Time base...
Page 335 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.5 - 256. Required current conditions. Currents over limit P-E voltages available P-E voltages not available Recorded impedance No trigger No trigger No trigger If no current measurement requirements are fulfilled when the function receives a triggering signal, the function will not record impedance at all.
Page 336: Disturbance Recorder (Dr)
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.5 - 258. Register content. Register Description Date and time dd.mm.yyyy hh:mm:ss.mss Event Event name • L1-L2 • L2-L3 • L3-L1 Fault type • L1-N • L2-N •...
Page 337 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Residual current I coarse* I01c Residual current I fine* I01f I02c Residual current I coarse* Residual current I fine* I02f IL1” Phase current I (CT card 2) Phase current I (CT card 2) IL2”...
Page 338 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Line-to-neutral U or line-to-line voltage U (VT card 2) UL2(3)VT2 Line-to-neutral U or line-to-line voltage U (VT card 2) UL3(1)VT2 U0(SS)VT2 Zero sequence voltage U or synchrocheck voltage U (VT card 2) USup_2 Voltage measurement module voltage supply supervision (VT card 2)
Page 339 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Signal Description Secondary calculated Sec.calc.I0 Pha.Lx pow. THD Phase Lx power THD (L1, L2, L3) Residual I0x amplitude THD (I01, calc.I0 Calculated I0 Res.I0x ampl. THD I02) Calculated I0 phase calc.I0 Pha.angle...
Page 340 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Signal Description ILx resistive current in ILx Resistive Pos.seq. Resistive Current Primary positive sequence resistive per-unit values (IL1, Current p.u. Pri. current IL2, IL3) ILx reactive current in ILx Reactive Pos.seq.
Page 341 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Signal Description POW1 3PH Three-phase cosine Frequency based When true ("1"), all frequency- Cos(phi) protections blocked based protections are blocked. f atm. Protections (when not Frequency at the moment. If the Three-phase power 3PH PF measurable returns to...
Page 342 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Signal Description Signal Description MBIO ModA Channel 1...8 of MBIO Mod A Logical Output x Logical output 1...64 Ch x Invalid is invalid MBIO ModB Channel 1...8 of MBIO Mod If NTP time synchronization is lost, NTP sync alarm Ch x Invalid...
Page 343 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Description Clear oldest • - Clears the oldest stored disturbance recording. record • Clear Max. Displays the maximum number of recordings that can be stored in the number of 0…100 device's memory with settings currently in use.
Page 344 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Default Description Enables and disables the automatic transfer of recordings. The recordings are taken from the device's protection CPU and transferred to the device's FTP directory in the communication CPU;...
Page 345 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Application example This chapter presents an application example of how to set the disturbance recorder and analyze its output. The recorder is configured by using the setting tool software or device HMI, and the results are analyzed with the AQviewer software (is automatically downloaded and installed with AQtivate).
Page 346 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.6 - 226. Effects of recording length and pre-triggering time signals. This example is based on the settings shown above. When there is at least one recording in the device's memory, that recording can be analyzed by using the AQviewer software (see the image below).
Page 347: Event Logger
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 4.6.7 Event logger Event logger records status changes of protection functions, digital inputs, logical signals etc. Events are recorded with a timestamp. The time stamp resolution is 1 ms. Up to 15 000 events can be stored at once.
Page 348 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 If the recording is done in the device, only the recording interval needs to be set before recording can be started. The setting tool estimates the maximum recording time, which depends on the recording interval.
Page 349 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Res.Curr.I02 TRMS Pri U2Volt Pri L2 Exp/Imp React.Cap.E.bal.Mvarh Sec.Pha.Curr.IL1 U3Volt Pri L2 Exp/Imp React.Cap.E.bal.kvarh Sec.Pha.Curr.IL2 U4Volt Pri L2 Exp.React.Ind.E.Mvarh Sec.Pha.Curr.IL3 U1Volt Pri TRMS L2 Exp.React.Ind.E.kvarh Sec.Res.Curr.I01 U2Volt Pri TRMS L2 Imp.React.Ind.E.Mvarh Sec.Res.Curr.I02 U3Volt Pri TRMS...
Page 350 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Pha.L1 pow. THD U1Volt Angle Exp.React.Cap.E.Mvarh Pha.L2 pow. THD U2Volt Angle Exp.React.Cap.E.kvarh Pha.L3 pow. THD U3Volt Angle Imp.React.Cap.E.Mvarh Res.I01 ampl. THD U4Volt Angle Imp.React.Cap.E.kvarh Res.I01 pow. THD Pos.Seq.Volt. Angle Exp/Imp React.Cap.E.bal.Mvarh Res.I02 ampl.
Page 351 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 I” Pri.Zero.Seq.Curr. System Volt UL1 ang S4 Measurement Res.Curr.I”01 TRMS Pri System Volt UL2 ang S5 Measurement Res.Curr.I”02 TRMS Pri System Volt UL3 ang S6 Measurement Sec.Pha.Curr.I”L1 System Volt U0 ang S7 Measurement Sec.Pha.Curr.I”L2 System Volt U1 ang...
Page 352: Fault Register
A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Pha.IL”2 ampl. THD L1 Imp.Active Energy MWh Curve1 Output Pha.IL”3 ampl. THD L1 Imp.Active Energy kWh Curve2 Input Pha.IL”1 pow. THD L1 Exp/Imp Act. E balance MWh Curve2 Output Pha.IL”2 pow.
Page 353 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Figure. 4.6.9 - 228. 12 latest recordings can be accessed from HMI if "Fault registers" view has been enabled in "Carousel designer" tool. Measured input The function block uses analog current and voltage measurement values. Based on these values, the device calculates the primary and secondary values of currents, voltages, powers, and impedances as well as other values.
Page 354 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Currents Description IL1Ang, IL2Ang, IL3Ang, I01Ang, I02Ang, I0CalcAng, The angles of each measured current. I1Ang, I2Ang V V olta oltages Descrip Description tion UL1Mag, UL2Mag, UL3Mag, UL12Mag, UL23Mag, The magnitudes of phase voltages, of phase-to-phase voltages, and of UL31Mag residual voltages.
Page 355 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Currents Description Ref f2 The reference frequency 2. M thermal T The motor thermal temperature. F thermal T The feeder thermal temperature. T thermal T The transformer thermal temperature. RTD meas 1…16 The RTD measurement channels 1…16.
Page 356 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Table. 4.6.9 - 268. Reported values. Name Range Description • - • I> Trip • I>> Trip • I>>> Trip • I>>>> Trip • IDir> Trip • IDir>> Trip •...
Page 357 A A Q Q -F205 -F205 4 Functions Instruction manual Version: 2.11 Name Range Description • A(AB) • B(BC) • A-B(AB-BC) • C(CA) • A-C(AB-CA) • B-C(BC-CA) • A-B-C • Overfrequency Voltage fault type The voltage fault type. • Underfrequency •...
Page 358: Communica A Tion
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 5 Communication 5.1 Connections menu "Connections" menu is found under "Communication" menu. It contains all basic settings of ethernet port and RS-485 serial port included with every AQ-200 device as well as settings of communication option cards.
Page 359 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Table. 5.1 - 271. Virtual Ethernet settings. Name Description Enable virtual adapter (No / Yes) Enable virtual adapter. Off by default. IP address Set IP address of the virtual adapter. Netmask Set netmask of the virtual adapter.
Page 360: Time Synchronization
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Name Range Description • None • ModbutRTU • ModbusIO Protocol • IEC103 Communication protocol used by serial fiber channels. • SPA • DNP3 • IEC101 • Off Echo Enable or disable echo.
Page 361: Internal
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 5.2.1 Internal If no external time synchronization source is available the mode should be set to "internal". This means that the AQ-200 device clock runs completely on its own. Time can be set to the device with AQtivate setting tool with Commands →...
Page 362: Communication Protocols
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Name Range Description NTP-processed 0...4294967295 Displays the number of messages processed by the NTP protocol. message count NOTICE! TICE! A unique IP address must be reserved for the NTP client. The device's IP address cannot be used.
Page 363: Iec 103
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Table. 5.3.1 - 280. Modbus/RTU settings. Parameter Range Description Slave address 1…247 Defines the Modbus/RTU slave address for the unit. Reading events Modbus protocol does not support time-stamped events by standard definition. This means that every vendor must come up with their own definition how to transfer events from the device to the client.
Page 364 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 IEC 101 settings Table. 5.3.3 - 281. IEC 101 settings. Name Range Step Default Description Common Defines the common address of the application service data address of 0…65 534 unit (ASDU) for the IEC 101 communication protocol.
Page 365 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Table. 5.3.3 - 283. Measurements with scaling coefficient settings. Name Range Active energy Reactive energy Active power • No scaling Reactive power • 1/10 • 1/100 Apparent power •...
Page 366: Spa
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Name Range Step Default Description Residual 0.01…5000.00V 0.01V 200V voltage deadband Angle 0.1…5.0deg 0.1deg 1deg measurement deadband Determines the integration time of the Integration time 0…10 000ms protocol. If this parameter is set to "0 ms", no integration time is in use.
Page 367 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Table. 5.3.5 - 286. Settings. Name Range Step Default Description Enables and disables the DNP3 TCP communication protocol Enable • Disabled when the Ethernet port is used for DNP3. If a serial port is used, Disabled the DNP3 protocol can be enabled from Communication →...
Page 368 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Name Range Default Description • Var 1 • Var 2 Group 22 variation (CNTR change) Var 5 Selects the variation of the control signal change. • Var 5 •...
Page 369: Modbus I/O
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Name Range Step Default Description Determines the integration time of the Integration time 0…10 000ms protocol. If this parameter is set to "0 ms", no integration time is in use. 5.3.6 Modbus I/O The Modbus I/O protocol can be selected to communicate on the available serial ports.
Page 370: Real-Time Measurements To Communication
A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Table. 5.4 - 291. Fault register settings. Name Range Step Default Description Not in use I>, I>>, I>>>, I>>>> (IL1, IL2, Selects the protection function and its stage to be IL3) used as the source for the fault register recording.
Page 371 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Signals Description IL1Ang, IL2Ang, IL3Ang, I01Ang, I02Ang, I0CalcAng Angles of each measured current. I1Ang, I2Ang Voltages UL1Mag, UL2Mag, UL3Mag, Magnitudes of phase voltages, phase-to-phase voltages and residual UL12Mag, UL23Mag, UL31Mag, voltages.
Page 372 A A Q Q -F205 -F205 5 Communication Instruction manual Version: 2.11 Signals Description Others System f. Used tracking frequency at the moment. Ref f1 Reference frequency 1. Ref f2 Reference frequency 2. M thermal T Motor thermal temperature. F thermal T Feeder thermal temperature.
Page 373: Connections Of Aq-F205
A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 6 Connections and application examples 6.1 Connections of AQ-F205 Figure. 6.1 - 229. AQ-F205 connections. AQ-F205 has fixed hardware with digital input and output cards always included.
Page 374: Application Example And Its Connections
A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 Figure. 6.1 - 230. AQ-F205 application example with function block diagram. AQ-F205 Device I/O 3 (IL) 4 voltage 10+1 2 (I0) channels Protection functions I2> I>...
Page 375: Two-Phase, Three-Wire Aron Input Connection
A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 Since three line-to-neutral voltages and the zero sequence voltage (U4) are connected, this application uses the voltage measurement mode "3LN+U0" (see the image below). Additionally, there are three phase currents and the residual current (I01) are also connected.
Page 376: Trip Circuit Supervision (95)
A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 Figure. 6.3 - 232. ARON connection. The ARON input connection can measure the load symmetrically despite the fact that one of the CTs is missing from the installation. Normally, Phase 2 does not have a current transformer installed as an external fault is much more likely to appear on Lines 1 or 3.
Page 377 A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 Figure. 6.4 - 233. Trip circuit supervision with one DI and one non-latched trip output. Note that the digital input that monitors the circuit is normally closed, and the same applies to the alarm relay if one is used.
Page 378 A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 Figure. 6.4 - 235. Non-latched trip contact. When the auto-reclosing function is used in feeder applications, the trip output contacts must be non- latched. Trip circuit supervision is generally easier and more reliable to build with non-latched outputs. The open coil remains energized only as long as the circuit breaker is opened and the output releases.
Page 379 A A Q Q -F205 -F205 6 Connections and application examples Instruction manual Version: 2.11 The trip circuit with a latched output contact can be monitored, but only when the circuit breaker's status is "Closed". Whenever the breaker is open, the supervision is blocked by an internal logic scheme.
Page 380: Construction And Installation Tion
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 7 Construction and installation 7.1 Construction Even though AQ-F205 is a member of the modular and scalable AQ-200 series, it does not have optional modules. This means that the construction and content of the device’s hardware are fixed. The device includes the CPU module (which consists of the CPU, a number of inputs and outputs, and the power supply) as well as one current measurement module, one voltage measurement module, a digital input module (DI8), and digital output module (DO5).
Page 381: Cpu Module
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 7.2 CPU module Figure. 7.2 - 239. CPU module. Connector Description Communication port A, or the RJ-45 port. Used for the setting tool connection and for IEC COM A 61850, Modbus/TCP, IEC 104, DNP3 and station bus communications.
Page 382 A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Connector Description System fault's output relay, with a changeover contact. Pins 16 and 17 are closed when the unit X1-16:17:18 has a system fault or is powered OFF. Pins 16 and 18 are closed when the unit is powered ON and there is no system fault.
Page 383: Current Measurement Module
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 • matrix • block settings • • • etc. Table. 7.2 - 295. Digital input and output user description. Name Range Default Description User editable Description of the digital input. This description is used in several description DIx menu types for easier identification.
Page 384: Voltage Measurement Module
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Connector Description CTM 7-8 Coarse residual current measurement I01. CTM 9-10 Fine residual current measurement I02. A basic current measurement module with five channels includes three-phase current measurement inputs as well as coarse and fine residual current inputs.
Page 385: Option Cards
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Connector Description VTM 3-4 Configurable voltage measurement input U2. VTM 5-6 Configurable voltage measurement input U3. VTM 7-8 Configurable voltage measurement input U4. A basic voltage measurement module with four channels includes four voltage measurement inputs that can be configured freely.
Page 386 A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Description (x = the number of digital inputs in other modules that preceed this one in the Connector configuration) DIx + 2 DIx + 3 DIx + 4 Common earthing for the first four digital inputs.
Page 387 A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Name Range Step Default Description Defines the release threshold for the digital input. When "NO" is the selected polarity, the measured voltage Release 10.0…200.0 V 0.1 V below this setting deactivates the input.
Page 388: Digital Output Module (Optional)
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 • matrix • block settings • • • etc. Table. 7.5.1 - 297. Digital input user description. Name Range Default Description User editable 1...31 Description of the digital input. This description is used in several description DIx characters menu types for easier identification.
Page 389: Dimensions And Installation
A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Connector Description X 5–6 OUTx + 3 (1 and 2 pole NO) X 7–8 OUTx + 4 (1 and 2 pole NO) X 9–10 OUTx + 5 (1 and 2 pole NO) The DO5 module is an add-on module with five (5) digital outputs.
Page 390 A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Figure. 7.6 - 245. Device dimensions. Figure. 7.6 - 246. Device installation. © Arcteq Relays Ltd IM00013...
Page 391 A A Q Q -F205 -F205 7 Construction and installation Instruction manual Version: 2.11 Figure. 7.6 - 247. Panel cutout dimensions and device spacing. © Arcteq Relays Ltd IM00013...
Page 392: Technic Echnical Da Al Data Ta
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 8 Technical data 8.1 Hardware 8.1.1 Measurements 8.1.1.1 Current measurement Table. 8.1.1.1 - 300. Technical data for the current measurement module. General information Spare part code #SP-2XX-CM Compatibility AQ-210 and AQ-250 series models Connections...
Page 393 A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 25 A (continuous) 100 A (for 10 s) Thermal withstand 500 A (for 1 s) 1250 A (for 0.01 s) Frequency measurement From 6…75 Hz fundamental, up to the 31 harmonic current range Current measurement range...
Page 394: Voltage Measurement
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 8.1.1.2 Voltage measurement Table. 8.1.1.2 - 301. Technical data for the voltage measurement module. General information Spare part code #SP-2XX-VT Compatibility AQ 200 series and AQ 250 series models Connection Measurement channels/VT inputs 4 independent VT inputs (U1, U2, U3 and U4)
Page 395: Power And Energy Measurement
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Voltage inputs Phase current inputs: I (A), I (B), I Current inputs (back-up frequency) Pick-up 2.00…50.00 %U , setting step 0.01 x %U Pick-up voltage setting Pick-up current setting (optional) 0.01…50.00 ×...
Page 396: Frequency Measurement
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Energy and power metering inaccuracy 0.5 S (50/60Hz) as standard 8.1.1.5 Frequency measurement Table. 8.1.1.5 - 304. Frequency measurement accuracy. Frequency measurement performance Frequency measuring range 6…75 Hz fundamental, up to the 31 harmonic current or voltage Inaccuracy <1 mHz...
Page 397: Cpu Communication Ports
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Other Minimum recommended fuse rating MCB C2 Table. 8.1.2.1 - 307. Power supply model B Rated values Rated auxiliary voltage 18…72 VDC < 7 W (no option cards) Power consumption <...
Page 398: Cpu Digital Inputs
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Data transfer rate 100 MB/s System integration Can be used for system protocols and for local programming Table. 8.1.2.2 - 310. Rear panel system communication port B. Port Port media Copper RS-485...
Page 399: Option Cards
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Make and carry 0.5 s 30 A Make and carry 3 s 15 A Breaking capacity, DC (L/R = 40 ms) at 48 VDC at 110 VDC 0.4 A at 220 VDC 0.2 A...
Page 400: Digital Output Module
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Pick-up threshold Software settable: 16…200 V, setting step 1 V Release threshold Software settable: 10…200 V, setting step 1 V Pick-up delay Software settable: 0…1800 s Drop-off delay Software settable: 0…1800 s Polarity Software settable: Normally On/Normally Off...
Page 401: Display
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 8.1.4 Display Table. 8.1.4 - 316. Technical data for the HMI LCD display. General information Spare part code #SP-200-DISP Compatibility AQ-200 series models Dimensions and resolution Number of dots/resolution 320 x 160 Size 84.78 ×...
Page 402: Non-Directional Earth Fault Protection (I0>; 50N/51N)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 IDMT setting parameters: - k Time dial setting for IDMT 0.01…25.00, step 0.01 IDMT constant 0…250.0000, step 0.0001 - B IDMT constant 0…5.0000, step 0.0001 - C IDMT constant 0…250.0000, step 0.0001 Inaccuracy: - IDMT operating time...
Page 403: Directional Overcurrent Protection (Idir>; 67)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Definite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy: - Definite time: I ratio > 3 ±1.0 % or ±20 ms - Definite time: I ratio = 1.05…3 ±1.0 % or ±30 ms IDMT setting parameters:...
Page 404: Directional Earth Fault Protection (I0Dir>; 67N/32N)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Characteristic direction Directional, non-directional Operating sector center -180.0…180.0 deg, setting step 0.1 deg Operating sector size (+/-) 1.00…170.00 deg, setting step 0.10 deg 0.10…40.00 × I , setting step 0.01 × I Pick-up current setting Inaccuracy: ±0.5 %I...
Page 405 A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Residual current channel I (Coarse) Residual current channel I (Fine) Current input (selectable) Calculated residual current: I (A), I (B), I RMS residual current (I or calculated I TRMS residual current (I or I Current input magnitudes...
Page 406: Negative Sequence Overcurrent/ Phase Current Reversal/ Current Unbalance Protection (I2>; 46/46R/46L)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Reset time setting 0.000…150.000 s, step 0.005 s Inaccuracy: Reset time ±1.0 % or ±45 ms Instant reset time and start-up reset <50 ms 8.2.1.5 Negative sequence overcurrent/ phase current reversal/ current unbalance protection (I2>;...
Page 407: Harmonic Overcurrent Protection (Ih>; 50H/51H/68H)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Reset time setting 0.010…10.000 s, step 0.005 s Inaccuracy: Reset time ±1.5 % or ±60 ms Instant reset time and start-up reset <55 ms 8.2.1.6 Harmonic overcurrent protection (Ih>; 50H/51H/68H) Table.
Page 408: Circuit Breaker Failure Protection (Cbfp; 50Bf/52Bf)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 NOTICE! TICE! Harmonics generally: The amplitude of the harmonic content must must be least 0.02 × I when the relative mode (Ih/IL) is used! Blocking: To achieve fast activation for blocking purposes with the harmonic overcurrent stage, note that the harmonic stage may be activated by a rapid load change or fault situation.
Page 409: Low-Impedance Or High-Impedance Restricted Earth Fault/ Cable End Differential Protection (I0D>; 87N)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 8.2.1.8 Low-impedance or high-impedance restricted earth fault/ cable end differential protection (I0d>; 87N) Table. 8.2.1.8 - 324. Technical data for the restricted earth fault/cable end differential function. Measurement inputs Phase current inputs: I (A), I...
Page 410: Undervoltage Protection (U<; 27)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Inaccuracy: ±1.5 %U - Voltage Operating time Definite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy: - Definite time (U ratio 1.05→) ±1.0 % or ±35 ms IDMT setting parameters: k Time dial setting for IDMT 0.01…25.00, step 0.01...
Page 411: Neutral Overvoltage Protection (U0>; 59N)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Inaccuracy: ±1.5 %U or ±30 mV - Voltage Operation time Definite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy: - Definite time (U ratio 1.05→) ±1.0 % or ±35 ms IDMT setting parameters:...
Page 412: Sequence Voltage Protection (U1/U2>/<; 47/27P/59Np)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 1.00…50.00 % U0 , setting step 0.01 × I Pick-up voltage setting Inaccuracy: - Voltage U0 ±1.5 %U0 or ±30 mV - Voltage U0Calc ±150 mV Operation time Definite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy:...
Page 413: Overfrequency And Underfrequency Protection (F>/<; 81O/81U)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Inaccuracy: ±1.5 %U or ±30 mV -Voltage Operation time Definite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy -Definite Time (U ratio 1.05→) ±1.0 % or ±35 ms IDMT setting parameters: k Time dial setting for IDMT...
Page 414: Rate-Of-Change Of Frequency Protection (Df/Dt>/<; 81R)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Inaccuracy: - Definite time (I ratio +/- 50 mHz) ±1.5 % or ±50 ms (max. step size: 100 mHz) Instant operation time Start time and instant operation time (trip): ratio +/- 50 mHz (Fixed) <70 ms (max.
Page 415: Line Thermal Overload Protection (Tf>; 49F)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Start time and instant operation time (trip): ratio +/- 20 mHz (overreach) <180 ms ratio +/- 200 mHz (overreach) <90 ms Reset Reset ratio (frequency limit) 0.020 Hz Instant reset time and start-up reset ratio +/- 50 mHz <2 cycles or <60 ms (max.
Page 416: Overpower (P>; 32O), Underpower (P<; 32U) And Reverse Power (Pr; 32R) Protection
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 8.2.1.16 Overpower (P>; 32O), underpower (P<; 32U) and reverse power (Pr; 32R) protection Table. 8.2.1.16 - 332. Technical data for the power protection functions. Measurement inputs Current inputs Phase current inputs: I (A), I (B), I...
Page 417: Object Control And Monitoring
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Control mode Local Any binary signal available in the device Remote Force change overrule of local controls either from the setting tool, HMI or SCADA Operation time Reaction time <5 ms from receiving the control signal 8.2.2.2 Object control and monitoring...
Page 418: Auto-Reclosing (0 → 1; 79)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Supported object types Disconnector (GND) Signals Digital inputs Input signals Software signals 8.2.2.4 Auto-reclosing (0 → 1; 79) Table. 8.2.2.4 - 336. Technical data for the auto-reclosing function. Input signals Software signals (protection, logics, etc.) Input signals...
Page 419: Switch-On-To-Fault (Sotf)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Current input magnitudes RMS phase currents Pick-up Pick-up current setting 0.01…40.00 × I , setting step 0.01 × I HIGH OVER Reset ratio 97 % of the pick-up current setting Inaccuracy: - Current ±0.5 %I...
Page 420: Synchrocheck (Δv/Δa/Δf; 25)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 8.2.2.7 Synchrocheck (ΔV/Δa/Δf; 25) Table. 8.2.2.7 - 339. Technical data for the synchrocheck function. Input signals Voltage inputs U1, U2, U3 or U4 voltage channel RMS line-to-line or line-to-neutral voltages Voltage input magnitudes U3 or U4 voltage channel RMS Pick-up...
Page 421: Voltage Transformer Supervision (60)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Phase current inputs: I (A), I (B), I Residual current channel I (Coarse) (optional) Current inputs Residual current channel I (Fine) (optional) RMS phase currents Current input magnitudes RMS residual current (I ) (optional) Pick-up...
Page 422: Circuit Breaker Wear Monitoring
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 External line/bus side pick-up (optional) 0 → 1 Time delay for alarm Definite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy: - Definite time (U ratio >...
Page 423: Fault Locator (21Fl)
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Phase current inputs: I (A), I (B), I Residual current channel I (Coarse) Current inputs Residual current channel I (Fine) Current measurement channels (FFT result) up to the 31 Current input magnitudes harmonic component.
Page 424: Disturbance Recorder
A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Reactance per kilometer 0.000…5.000 s, setting step 0.001 Ω/km Inaccuracy: - Reactance ±5.0 % (typically) Operation (Triggering) Activation From the trip signal of any protection stage At least 0.040 s of stage operation time Minimum operation time required 8.2.3.6 Disturbance recorder...
Page 425 A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Conducted emissions: 150 kHz…30 MHz EN 60255-26 Ch. 5.2, CISPR 22 Radiated emissions: 30…1 000 MHz EN 60255-26 Ch. 5.1, CISPR 11 Immunity Electrostatic discharge (ESD): Air discharge 15 kV EN 60255-26, IEC 61000-4-2 Contact discharge 8 kV Electrical fast transients (EFT):...
Page 426 A A Q Q -F205 -F205 8 Technical data Instruction manual Version: 2.11 Cold test Storage: –40 °C, 16 h EN 60255-1, IEC 60068-2-1 Operational: –20 °C, 16 h Table. 8.3 - 351. Environmental conditions. IP classes IP54 (front) Casing protection class IP21 (rear) Temperature ranges Ambient service temperature range...
Page 427: Ordering Inf Dering Informa Ormation Tion
A A Q Q -F205 -F205 9 Ordering information Instruction manual Version: 2.11 9 Ordering information Accessories Order Descrip Description tion Not t e e code code External 6-channel 2 or 3 wires RTD Input module, pre- Requires an external 24 VDC AX007 configured supply.
Page 428: Contact And R Ence Informa Ormation Tion
A A Q Q -F205 -F205 10 Contact and reference information Instruction manual Version: 2.11 10 Contact and reference information Manufacturer Arcteq Relays Ltd. Visiting and postal address Kvartsikatu 2 A 1 65300 Vaasa, Finland Contacts Phone: +358 10 3221 370 Website: arcteq.com Technical support:...

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