GE DFF1000 Series Instructions Manual
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GE DFF1000 Series Instructions Manual

GE DFF1000 Series Instructions Manual

Digital frequency relay
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GE Power Management
Digital Frequency Relay
Digital Frequency Relay
Digital Frequency Relay
Digital Frequency Relay
DFF series 1000
Instructions
Instructions
Instructions
Instructions
GEK 106166B
GEK 106166B
GEK 106166B
GEK 106166B

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  • Page 1 ÿ GE Power Management Digital Frequency Relay Digital Frequency Relay Digital Frequency Relay Digital Frequency Relay DFF series 1000 Instructions Instructions Instructions Instructions GEK 106166B GEK 106166B GEK 106166B GEK 106166B...
  • Page 2 B@ÃQ‚r…ÃHhhtr€r‡ $Q\WKLQJ \RX FDQ·W ILQG" $Q\WKLQJ QRW FOHDU HQRXJK" DAà `PVà C6W@à 6I`à 8PHH@IUà PIà UC@à 8PIU@IUTà PAà UC@ QS@T@IUà H6IV6Gà FDI9G`à A6Yà VTà 6à 8PQ`à PAà UCDTà Q6B@ UPB@UC@Sà XDUCà 6à 8PQ`à PAà UC@à Q6B@à XC@S@à `PVà C6W@ APVI9à UC@à QSP7G@Hà UPà UC@à A6Yà IVH7@Sà "#à (#à #'$à ''à #$ ADGGDIBÃ...

  • Page 4: Table Of Contents

    GEK – 106166B TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS 1. GENERAL DESCRIPTION AND APPLICATION 2. OPERATING PRINCIPLES ROTECTION UNCTIONS 2.1.1 REQUENCY NITS 2.1.2 OLTAGE NITS NTERNAL TATUS ONITORING AND EGISTERING UNCTIONS 2.3.1 EASUREMENT 2.3.2 LED S IGNALIZATION 2.3.3...
  • Page 5 GEK – 106166B 7. ACCEPTANCE TESTS ONNECTION AND ECESSARY QUIPMENT ISUAL HECK NSULATION ESTS OWER UPPLY OLTAGE EASUREMENT REQUENCY EASUREMENT IGITAL NPUTS HECKING UTPUTS HECKING OMMUNICATIONS ORTS HECKING 7.10 EYPAD ISPLAY AND HECKING 7.11 ONTROL PERATIONS 7.12 NHIBITION OLTAGE HECKING 7.13 OLTAGE UNCTIONS...
  • Page 6 GEK – 106166B TABLE LIST TABLE LIST TABLE LIST TABLE LIST Table I : Communication internal states ........................ 10 Table II : Protection internal states ........................11 Table III : Common settings to all tables ....................... 18 Table IV : Independent settings to each table ...................... 19 FIGURE LIST FIGURE LIST FIGURE LIST...
  • Page 7 GEK – 106166B...

  • Page 8: General Description And Application

    GEK – 106166B 1. 1. 1. 1. GENERAL DESCRIPTION AND GENERAL DESCRIPTION AND GENERAL DESCRIPTION AND GENERAL DESCRIPTION AND APPLICATION APPLICATION APPLICATION APPLICATION During the last years new technologies have allowed a significant advance in the concept of integration between different components of the electrical system.
  • Page 9 The DFF associated software is the following: • Communication software GE-LOCAL, that allows the user to view and modify the protection settings, alarms, internal status etc. • Configuration software GE-INTRO, that allows the user to configure the inputs, outputs, alarms and LEDs.

  • Page 10: Operating Principles

    GEK – 106166B 2. 2. 2. 2. OPERATING PRINCIPLES OPERATING PRINCIPLES OPERATING PRINCIPLES OPERATING PRINCIPLES 2.1 PROTECTION FUNCTIONS 2.1.1 FREQUENCY UNITS The DFF relay incorporates 8 underfrequency units. Each unit can be independently set as ABSOLUTE THRESHOLD or as DERIVATIVE. All frequency units are supervised by a voltage unit that disables the frequency unit’s operation in case the voltage value decreases below the adjusted threshold.
  • Page 11 GEK – 106166B If we want to adjust the unit as change rate, we will select the FUNCTION TYPE setting as dF/dT. The following conditions are necessary for the unit to pickup in this mode: • The frequency value must be under the set value for 81 PICKUP during the “number of semi-cycles” set for GENERAL SETTINGS.

  • Page 12: Voltage Units

    GEK – 106166B 2.1.2 VOLTAGE UNITS The DFF has 3 voltage units. Inhibition voltage unit : This unit supervises the phase voltage used for frequency calculation (in this case phase B). This unit is adjusted as a percentage of the nominal voltage. The range goes from 40 to 110 % of the nominal voltage (also adjustable).

  • Page 13: Internal Status

    GEK – 106166B 2.2 INTERNAL STATUS The DFF is a microprocessor based relay that samples analog inputs, processes them by means of internal algorithms and activates outputs accordingly. Most of the relay information may be accessed by the user in order to create specific configurations for each application.
  • Page 14 GEK – 106166B All those available protection internal states are shown in the following table: TABLE II. PROTECCION INTERNAL STATES Internal States Internal Internal States Internal States States Program Initiation F1Trip Output 13 Settings change F2Trip Output 14 F3Trip Output 15 Configuration F4Trip Output 16...

  • Page 15: Monitoring And Registering Functions

    In the DFF we have a total of 17 LEDs available, one bicolor (not configurable) for the internal alarm function plus 16 red. These 16 LEDs form a single column, and all of them are configurable using GE-INTRO software. All events (32 originated by protection and 16 by communications), or an OR combination of them (maximum 16 inputs coming out from the same group) may be addressed to the LEDs.

  • Page 16: Self-Checking And Diagnosis

    GEK – 106166B 2.3.3 SELF-CHECKING AND DIAGNOSIS The DFF includes (due to its numerical technology) self-checking and autodiagnosis. These functions guarantee proper operation, signalization in case of internal failure and disable the operation of the protection functions. These tests are performed not only during the power-up process of the relay but also during normal operation (making use of the so called “background free time”).

  • Page 17: Setting Tables

    The waveform captures registered are stored in COMTRADE format files by using GE-LOCAL communications software. They can be viewed through GE-OSC software, any program that can read COMTRADE files or also as a text file (using for example Microsoft EXCEL). Finally by means of an external format converter they will be accepted by GLOBAL-LAB (a well known mathematical and signal analysis software package).

  • Page 18: Inputs And Outputs

    2.6.1 DIGITAL INPUTS The DFF1000 has 14 digital inputs (two groups of 7 Inputs each with a common terminal for each), being all of them user-configurable through GE-INTRO software program. Models DFF1001 and DFF1002 have only 7 inputs. Every input may have one of the following values:...

  • Page 19: Man Machine Interface (Mmi)

    GEK – 106166B 2.7 MAN MACHINE INTERFACE (MMI). The DFF relay includes a 20-button keypad with a two-line screen (16 characters per line). The screen has background light by LED diodes (the brightness can be adjusted through a power meter accessible at the back of the front board).

  • Page 20: Settings

    • Make sure the connection cable corresponds to the one described in figure 3, either for DB9 or DB25. • Connect the cable between the relay (or modem) and the computer serial port. • Execute GE-LOCAL software. For more information about GE-LOCAL software check with the instruction manual GEK 105595.
  • Page 21 GEK – 106166B To perform the configuration of those settings the use of GE-INTRO software package is needed (please refer to instruction book GEK-105594). The configuration of all these parameters will be explained in the following chapter. The following tables contain a complete list of the DFF settings common for the three tables, with their associated ranges, units and steps.
  • Page 22 GEK – 106166B Setting type Limit Default Step 81 U2 Pickup YES/NO 81 U3 Pickup YES/NO 81 U4 Pickup YES/NO 81 U5 Pickup YES/NO 81 U6 Pickup YES/NO 81 U7 Pickup YES/NO 81 U8 Pickup YES/NO 81 U1 Trip YES/NO 81 U2 Trip YES/NO 81 U3 Trip...
  • Page 23 GEK – 106166B...

  • Page 24: Equipment Configuration

    GEK – 106166B 4. 4. 4. 4. EQUI EQUIPMENT CONFIGURATION PMENT CONFIGURATION EQUI EQUI PMENT CONFIGURATION PMENT CONFIGURATION The DFF protection system has inputs, outputs and configurable LEDs. All of them are user configurable. The configurable inputs are adjusted through GE_INTRO software (instruction book GEK-105594A) 4.1 INPUTS CONFIGURATION Each of the 14 or 7 configurable Inputs (depending on the model) can have any of the following values: - Input non-active...

  • Page 25: Outputs Configuration

    GEK – 106166B 4.2 OUTPUTS CONFIGURATION The DFF protection system provides 28, 20 or 8 user configurable outputs (depending on the model) plus five non-programmable factory defined ones. These outputs are identified in the external connections diagram (figure 1) as SP1, SP2, etc. Any of the internal states of the DFF (shown in table II section 2.2) can be addressed to one of these programmable outputs.

  • Page 26: Technical Characteristics

    GEK – 106166B 5. 5. 5. 5. TECHNICAL CHARACTERISTICS TECHNICAL CHARACTERISTICS TECHNICAL CHARACTERISTICS TECHNICAL CHARACTERISTICS 5.1 MODEL LIST POSITION DESCRIPTION Comm. Protocols P1, P2: Mlink P1: Mlink ; P2: ModBus Inputs/Outputs 14 inputs / 33 outputs 7 inputs / 25 outputs 7 inputs / 13 outputs 14 inputs / 20 outputs Communications...

  • Page 27: Technical Characteristics

    GEK – 106166B 5.2 TECHNICAL CHARACTERISTICS MECHANICAL • 19 “ rack unit 2 units high. • Protection IP51 (according to IEC 529). • Local MMI with LCD screen (2 rows of 16 characters each) and 20 button keypad. • 10 Rear terminal strips of 12 terminal blocks each. •...
  • Page 28 - RS485 ( port 2 optional) STANDARDS The DFF complies with the IEC relay standards, including also GE dielectric strength test and the European directive of Electromagnetic Compatibility (89/336) for CE marking. It also fulfills low voltage European directives and standards ANSI C37.90, IEC 255-5, IEC 255-6 e IEC 68.
  • Page 29 GEK – 106166B...

  • Page 30: Hardware Description

    GEK – 106166B 6. 6. 6. 6. HARDWARE DESCRIPTION HARDWARE DESCRIPTION HARDWARE DESCRIPTION HARDWARE DESCRIPTION The DFF incorporates electronic components that might be affected by electrostatic discharge currents flowing through certain component terminals. The main source of electrostatic discharges is human body, specially under low humidity conditions with carpet floors or isolating shoes.
  • Page 31 GEK – 106166B Each of these modules has a DIN type front connector for the connection to the internal communication bus. Also, in the case of having connections to the outside (Inputs, Outputs and power supply modules), the male part of the terminal block is incorporated.

  • Page 32: Identification

    GEK – 106166B 6.1.4 IDENTIFICATION. The identification label of the model is placed at the right of the alpha-numeric keypad. This label includes the model number, serial number and the most important nominal values. Terminal blocks placed at the rear cover are identified by black colour serigraphy on the cover. Each of the terminals blocks are identified by a letter placed at the upper border of the cover close to the connector.

  • Page 33: Communications Cpu Module

    GEK – 106166B 6.1.7 COMMUNICATIONS CPU MODULE. Communications CPU module nucleus is very similar to the protection CPU module, and it also consists of a 16 bits microprocessor together with the auxiliary electronic. The main function of the communications CPU module is to maintain and control the communications in the following channels: - Internal communication with the protection and control CPU modules.

  • Page 34: Reception, Operation And Storage

    GEK – 106166B 6.2 RECEPTION, OPERATION AND STORAGE. DFF relays are supplied to the customer in a special package, which adequately protects it during transportation, as long as this is performed in normal conditions. Immediately after receiving the relay, the customer should check whether it shows any signs of transportation damage.
  • Page 35 GEK – 106166B...
  • Page 36 GEK – 106166B 7. 7. 7. 7. ACCEPTANCE TESTS ACCEPTANCE TESTS ACCEPTANCE TESTS ACCEPTANCE TESTS In this section the necessary tests to check the proper operation of the relay are described. 7.1 CONNECTION AND NECESSARY EQUIPMENT Equipment needed: • 3 power supplies •...
  • Page 37 GEK – 106166B GROUP RELAY TERMINALS TYPE A7..10, B7..10 Voltage C5..9, D5..9 Trips C11, D11 Power Supply J1.. K1, K1..K4 Inputs J5..K5, J12..K12 Outputs 7.4 POWER SUPPLY For safety reasons, A12 terminal must be grounded during functional tests. Apply nominal voltage (maximum and minimum) to the relay. For each of this voltages, check that the ALARM relay is open when it is powered and close when it is not powered.
  • Page 38 GEK – 106166B 7.6 FREQUENCY MEASUREMENT. Note: Frequency measurements will be done by applying voltage to phase B Inputs. Check that the frequency measurement error is not higher than 0.01 Hz for the following frequency and voltage values: • Voltages: 50,150 and 250 Vac •...
  • Page 39 GEK – 106166B 3. Configurable Outputs checking. Make one of the configurable contacts close in one of the following ways: Configuring the outputs as frequency pickups or trips and producing one underfrequency condition. Conditioning the output actuation to an input activation. Make sure that all the configurable relays close when the closing condition happens and open when this conditions disappears.
  • Page 40 GEK – 106166B 7.11 CONTROL OPERATIONS. 1. Time setting. Set date and time of the relay and verify the proper operation. 2. Communications Trigger. Apply to any phase a voltage signal, operate the communication trigger of the oscillography waveform capture function.
  • Page 41 GEK – 106166B Decrease the voltage and check that the relay trips with 106.7 Vac and drops out with 118.8 Vac 2. 59P FUNCTION CHECKING Set 59P function as follows: 59P PICKUP: 50 Vac 59P OPERATION t : 0 s. 59P RESET t : 0 s.
  • Page 42 GEK – 106166B 8. 8. 8. 8. INSTALLATION AND MAINTENANCE INSTALLATION AND MAINTENANCE INSTALLATION AND MAINTENANCE INSTALLATION AND MAINTENANCE 8.1 INSTALLATION The place where the relay is to be installed must be clean, dry, free of dust and vibrations, and well illuminated to facilitate inspection and tests.
  • Page 43 GEK – 106166B...
  • Page 44 Configuration Menu : It allows to access to the configuration of the relay, allowing the modification of communication baud rates, passwords, etc. To access this menu press “7169” (GE in ASCII code). In order to be able to access this menu, the relay must be in the main screen.
  • Page 45 GEK – 106166B 9.1 TREE MENUS. The DFF relay has different menus organized in levels. Level 0 is the standby screen. To access to level 1, a group key must be pressed (SET, INF, etc.). To move along a level ↑/↓ keys must be pressed. To go down to levels 2 and 3 ENT key must be pressed.
  • Page 46 GEK – 106166B Level 1 Level 2 Level 3 Description Valid range VIEW GENERAL RELAY STATUS It takes the relay out of In service / Out service of service PROTECTION SETTINGS SETTINGS CHANGE FREQUENCY Nominal frequency 50/60 Hz PROTECT SETTINGS Alphanumeric string of 20 NAME characters...
  • Page 47 GEK – 106166B Level 1 Level 2 Level 3 Description Valid range ENABLING 59P FUNCTION Allows to enable or to Enabled disable the function /Disabled Allows to enable or to Enabled 81 U1 FUNCTION disable the function /Disabled Allows to enable or to Enabled 81 U2 FUNCTION disable the function...
  • Page 48 GEK – 106166B Level 1 Level 2 Level 3 Description Valid range units ) TIME DELAY Time delay for operation 0 to 60 s in steps of 0.01s Slope setting 0.1 to 10 Hz/s in dF/dT steps of 0.01 Output contacts reset time 0 to 600s in RESET TIME steps of 0.01s...
  • Page 49 GEK – 106166B 9. Press the CLR key repeatedly in order to return to the standby mode. If during the settings modification any range limit is exceeded, the relay will not accept the change and the following message will be displayed: SETTING OUT SETTING OUT SETTING OUT...
  • Page 50 GEK – 106166B 9.4 CONTROL OPERATIONS GROUP. This group allows setting the date and the time of the relay as well as producing an oscillography trigger. To access to control operations group, the ACT key must be pressed (from the standby screen). These are the available control operations: - Set date and time.
  • Page 51 The code is common to all DFF relays. It is not meant to be a password, but a simple measure of security to avoid accidental manipulation of the configuration. The code is 7169, which was selected because it is the corresponding ASCII code for the initials GE. This is the way to access the configuration unit from the standby screen:...
  • Page 52 GEK – 106166B Figure 1: External Connections for DFF1000 model...
  • Page 53 GEK – 106166B Figure 2: External Connections for DFF1001 model...
  • Page 55 GEK – 106166B Figure 4: Panel Mounting...
  • Page 56 GEK – 106166B DB-9 DB-9 MALE MALE DO NOT CONNECT THE NOTE : SHIELD DB-9 DB-9 MALE FEMALE DO NOT CONNECT THE NOTE : SHIELD Figure 5. RS-232 Connection...
  • Page 57 GEK – 106166B Figure 6: Dimensions...
  • Page 58 GEK – 106166B Figure 7: Front View...
  • Page 59 GEK – 106166B Figure 8: Rear View...

This manual is also suitable for:

Dff1000Dff1001Dff1002

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