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Related Manuals for Seg XRI1-IR
Summary of Contents for Seg XRI1-IR
- Page 1 XRI1-IR Digital multifunctional relay for time overcurrent protection...
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Page 2: Table Of Contents
Checking the set values 4 Working principle Secondary injection test Analog circuits 7.4.1 Test equipment Digital circuits 7.4.2 Test circuit of XRI1-IR Directional feature 7.4.3 Checking the input circuits and measured Requirements on the main current values transformers 7.4.4 Checking the operating and resetting... -
Page 3: Introduction And Application
Introduction and application Features and characteristics • Digital filtering of the measured values by using dis- The digital relay type XRI1-IR as time overcurrent pro- tection is designed for the use in electrical machines, crete Fourier analysis to suppress the high frequence lines and grids. -
Page 4: Design
3.1.4 Output relays (default settings) The protection unit receives the analog input signals of The XRI1-IR is equipped with 5 output relays. Apart the phase currents IL1 (1S1-1S2), IL2 (2S1-2S2), IL3 from the relay for self-supervision, one relay with 2... -
Page 5: Data Communication
3.1.5 Data communication For data communication with a central control system the XRI1-IR relay is provided with a serial interface RS485. Simplified and fast reading and changing of parameters and measuring values can be achieved by HTL/PL-Soft3, which will be provided on request to- gether with the relay. -
Page 6: Front Plate
The front plate of protection relays comprises the fol- lowing operation and indication elements: • Alphanumerical display (4 Digits) • Push buttons for setting and other operations • LEDs for measured value indication and setting Fig. 3.4: Front plate XRI1-IR TB XRI1-IR 02.00 E... -
Page 7: Display
XRI1-IR with directional feature have a LED (green- and The LEDs arranged at the characteristic points on the setting curves support the comfortable setting menu se- red arrow) for the directional display. -
Page 8: Parameter Settings (See Chapter 6)
0s / 60s I>> I>> CBFP 50/60 Hz LED-Flash RS485 / Slaveaddress Table 3.2: Parameter values Reset setting for inverse time characteristics in phase current path Additional parameters: Relay-type XRI1-IR Blocking mode Relay parameterizing Fault recorder Table 3.3 TB XRI1-IR 02.00 E... -
Page 9: Working Principle
15° to 83°. 4.2 Digital circuits The essential part of the XRI1-IR relay is a powerful microcontroller. All of the operations, from the analog digital conversion to the relay trip decision, are carried out by the microcontroller digitally. The relay program is located in an EPROM (Electrically-Programmable- Read-Only-Memory). -
Page 10: Requirements On The Main Current
The low power consumption in the current circuit of and 6.1.6). XRI1-IR, namely <0.2 VA, has a positive effect on the If the trip delay for backward faults is set longer than selection of current transformers. It implies that, if an... -
Page 11: General Operations And Settings
(see 5.4.2). The <TRIP>-push button is used to test the output relay circuits both for tripping and signalling. During normal operation it is also interlocked by means of the pass- word identification. TB XRI1-IR 02.00 E... -
Page 12: Indication Of Measuring Values And Fault Data
5.1.1 Indication of measuring values and fault data Indication in faultless condition In normal operation the display always shows |SEG. After pressing the push button <SELECT/RESET> the display switches cyclically to the next measuring value. After the measuring values had been indicated the set- ting parameters are displayed. -
Page 13: Dip Switches
Function Code Operation mode switches jumper position Password Normal position Password selection none Reset Output relays will be reset automatically Output relays will be reset manual/external/via software none Tab. 5.1: Summary of coding possibilities TB XRI1-IR 02.00 E... -
Page 14: Reset
<+> Switch on dip switch 1. After power on and pressing <ENTER> any push button, the relay XRI1-IR inquires for a new then a password "-E+S" means pressing push buttons according to the follwing sequence: password. The text "PSW?" appears on the display. -
Page 15: Relay Setting Principle
5.5.1 Setting of default parameters supply voltage into account. The following two diffe- rent operating thresholds can be adjusted: Setting of the XRI1-IR default parameters can be done • Low-range treshold U ≥ 10 V; U ≤ 8 V as follows: • High-range treshold U... -
Page 16: Operations And Settings
The setting value for this parameter that appears on the display is related to the nominal current (I ) of the re- For the XRI1-IR-version with directional feature, the dif- lay. This means: pickup current (Is) = displayed value x nominal current (I ) e.g. -
Page 17: Reset Setting For Inverse Time Tripping
6.1.7 Relay characteristic angle RCA The characteristic angle for directional feature in the phase current path can be set by parameter RCA to 15°, 27°, 38°, 49°, 61°, 72° or 83°, leading to the respective reference voltage (see chapter 4.3). TB XRI1-IR 02.00 E... -
Page 18: Blocking The Protection Functions And Assignment Of The Output Relays
The relays are assigned as follows: LEDs I>, I>>, I Blocking the protection functions: E> The blocking function of the XRI1-IR can be set accord- are two-coloured and light up green when the out- E>> ing to requirement. By applying the aux. voltage to put relays are assigned as alarm relays and red as D8/E8, the functions chosen by the user are blocked. - Page 19 I>> Table 6.2: Example of assignment matrix of the output relay (default settings). (V) = foreward direction; (R) = backward direction This way, a tripping relay can be set for each activa- tion and tripping direction. TB XRI1-IR 02.00 E...
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Page 20: Setting Value Calculation
L2, L3, E) and the four function LEDs (I>, I>>, IE>, can even be set for the fault inside the transformer. IE>> und →←) are equipped at XRI1-IR. If, for exam- The time delay for high set element is always inde- ple an overcurrent occurs, first the LEDs of the corre- pendent to the fault current. -
Page 21: Fault Recorder
• By pressing <+> it can be scrolled back to a more Unit XRI1-IR has the following three possibilities to re- recent fault data set. At first FLT8, FLT7, ... are al- set the display of the unit as well as the output relay at ways displayed. -
Page 22: Relay Testing And Commissioning
3 seconds and all LEDs with a delay of 0.5 seconds, with the self-supervision relay dropping. Thereafter, re- set all output relays back to their normal positions by pressing the push button <SELECT/RESET> (about 3 s). TB XRI1-IR 02.00 E... -
Page 23: Test Circuit Of Xri1-Ir
I1 must be ±0 for I and +1.0 for XRI1-IR is a three phase directional time overcurrent re- lay with relay connection angle of 90°. That is why Determining the change in direction the phase angle between input current and input volt- age has to be set to -90°... - Page 24 If the angle is now changed beyond the margi- nal regions, the LED →← changes from green to red. Relay 2 drops and relay 3 responds. This test must be repeated for current inputs 12 and 13. TB XRI1-IR 02.00 E...
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Page 25: Checking The Input Circuits And Measured
In case of inverse time characteristics the injected cur- harmonics. Because the XRI1-IR relay measures only rent should be selected according to the characteristic the fundamental component of the input signals, the curve, e.g. -
Page 26: Checking The External Blocking And Reset
In case of a XRI1-IR re- Remove the auxiliary supply voltage from the blocking lay with directional feature, the active and reactive input. -
Page 27: Technical Data
20% of the fifth harmonic; <0.07% per percent of the fifth harmonic Influences on delay times: no additional influences can be measured GL-approbation: 98 775 - 96 HH Bureau Veritas Approbation: 2650 6807 A00 H TB XRI1-IR 02.00 E... -
Page 28: Setting Ranges And Steps
±3% or ±10 ms IE>> 8.3.2 Switch failure protection ±1% bzw. ±10 ms 0.1...2.0 s; EXIT 0.01; 0.02; 0.05; 0.1 s CBFP CBFP 8.3.3 Interface parameter Function Parameter RS485 Open Data Protocol Slave-Address 1 - 32 TB XRI1-IR 02.00 E... -
Page 29: Inverse Time Overcurrent Protection Relay
Directional sensitivity for voltage input circuit: <0.025% U (phase-to-phase voltage) at I = 1 x I Connection angle: 90° Characteristic angle: 15°, 27°, 38°, 49°, 61°, 72°, 83° ±78° related to relay characteristic angle at U Effective angle: TB XRI1-IR 02.00 E... -
Page 30: Inverse Time Characteristics
Normal Inverse (type A) 1000 I> 0.02 t[s] t[s] I> > 10.0 0.03 I>> >> 0.03 0.05 0.01 0.01 5 6 7 8 9 10 Figure 8.4 Definite time overcurrent relay Figure 8.2: Extremely Inverse (type C) TB XRI1-IR 02.00 E... -
Page 31: Output Relays
For rated voltages 100 V, 110 V, 125 V, 220 V, 230 V Current consumption 1.5 mA DC at 360 V DC or 11.0 mA AC at 230 V DC Technical data subject to change without notice! TB XRI1-IR 02.00 E... -
Page 32: System Data And Test Specifications
10 V/m Surge immunity test as per EN 61000-4-5:EN 61000-4-5: 4 kV Radio interference suppression test as per EN 55011: limit value class B Radio interference radiation test as per EN 55011: limit value class B TB XRI1-IR 02.00 E... -
Page 33: Relay Case
8.9 Relay case Relay XRI1-IR is designed to be fastened onto a DIN-rail acc. to DIN EN 50022, the same as all units of the ROFESSIONAL The front plate of the relay is protected with a sealable transparent cover (IP40). -
Page 34: Order Form
Order form Time overcurrent relay XRI1- 3-phase meauring I>, I>> Rated current Phase fault directional feature Rated voltage 100 V 230 V 400 V TB XRI1-IR 02.00 E... - Page 35 I>>V I>>R 49 ° 0.2 s CBFP 50/60 Hz 50 Hz Pickup indication FLSH RS485 / Slave All settings must be checked at site and should the occarision arise, adjusted to the object/item to be protected. TB XRI1-IR 02.00 E...
- Page 36 TB XRI1-IR 02.00 E...
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