Check Of Trip And Trip Reset Timers - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
ANSI07000108 V2 EN-US
Figure 29:
where:
1
2
2. Apply 1.2 · Vn (rated voltage) to the V1 and V2 inputs.
3. Decrease slowly the voltage of in phase VA of the test set until the ALARM signal is activated.
4. Check the alarm operation level by comparing the differential voltage level at ALARM with the set
alarm level VDAlarm.
5. Continue to slowly decrease the voltage until PICKUP signal is activated.
6. Check the differential voltage operation level by comparing the differential voltage level at PICKUP
with the set trip level VDTrip.
7. Repeat steps
Observe that the connections to V1 must be shifted to test another phase. (VA to VB, VB to VC, VC
to VA)
11.5.4.4

Check of trip and trip reset timers

Procedure
1. Connect voltages to the IED according to valid connection diagram and figure 29.
2. Set Vn (rated voltage) to the V1 inputs and increase V2 voltage until the differential voltage is 1.5 ·
operating level (VDTrip).
3. Switch on the test set. Measure the time from activation of the PICKUP signal until TRIP signal is
activated.
134
VA
VB
VC
VN
Connection of the test set to the IED for test of alarm levels, trip levels and trip
timer
is three-phase voltage group1 (V1)
is three-phase voltage group2 (V2)
The ALARM signal is delayed with timer tAlarm
1 to 6 to check the other phases.
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VA
VB
1
VC
VN
VA
2
VB
VC
ANSI07000108-1-en.vsd
1MRK 511 403-UUS Rev. K
SEMOD175258-124 v2
Bay control REC670
Commissioning manual