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4.2 GENERAL RELAY TESTS
1.
Apply rated DC across CC1 (D2-D18). Using the keypad and the INFORMATION: "CC status" command, verify that
CC1 is ON. Remove the DC from CC1.
2.
Apply rated DC across CC2 (D3-D19). Using the keypad and the INFORMATION: "CC status" command, verify that
CC2 is ON. Remove the DC from CC2.
3.
Apply rated DC across CC3 (D4-D20). Using the keypad and the INFORMATION: "CC status" command, verify that
CC3 is ON. Remove the DC from CC3.
4.
Apply rated DC across CC4 (D5-D21). Using the keypad and the INFORMATION: "CC status" command, verify that
CC4 is ON. Remove the DC from CC4.
5.
Apply rated DC across CC5 (D6-D22). Using the keypad and the INFORMATION: "CC status" command, verify that
CC5 is ON. Remove the DC from CC5.
6.
Apply rated DC across CC6 (D7-D23). Using the keypad and the INFORMATION: "CC status" command, verify that
CC6 is ON. Remove the DC from CC6.
7.
Apply rated DC across CC7 (D8-D24). Using the keypad and the INFORMATION: "CC status" command, verify that
CC7 is ON. Remove the DC from CC7.
8.
Apply rated DC across CC8 (D9-D25). Using the keypad and the INFORMATION: "CC status" command, verify that
CC8 is ON. Remove the DC from CC8.
4
9.
(Single Phase Tripping model only) Apply rated DC across CC9 (D10-D26). Using the keypad and the INFORMATION:
"CC status" command, verify that CC9 is ON. Remove the DC from CC10.
10. (Single Phase Tripping model only) Apply rated DC across CC10 (D11-D27). Using the keypad and the INFORMA-
TION: "CC status" command, verify that CC10 is ON. Remove the DC from CC10.
11. (Single Phase Tripping model only) Apply rated DC across CC11 (D12-D28). Using the keypad and the INFORMA-
TION: "CC status" command, verify that CC11 is ON. Remove the DC from CC11.
12. (Single Phase Tripping model only) Apply rated DC across CC12 (D13-D29). Using the keypad and the INFORMA-
TION: "CC status" command, verify that CC12 is ON. Remove the DC from CC12.
This test uses present values to determine if the voltages and currents are connected properly to the terminal strip. The
VALUES function can be used at any time during the test to verify the relay voltages and currents.
1.
Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–12.
Set VA to 67 V rms ∠0°, VB to 57 V rms ∠–120°, and VC to 47 V rms ∠120°.
2.
3.
Press the [INF] key on the keypad. Scroll, using the arrow keys, to the heading: 1. Present values and press the [ENT]
key. The present values are now displayed.
4.
Scroll to the values of VA, VB, and VC and verify that the voltages are within ±2 volts of the voltage source setting. This
verifies the connections of the voltage sources.
Alternately, whenever the display is blank, press the [CLR] key to have the relay automatically scroll
through the present values.
NOTE
Set I
5.
to 1.0 amp rms for phases IA, IB, or IC, as shown by the Y connection point in Figure 4–3: PHASE TO
op
GROUND TEST CONNECTIONS on page 4–12.
6.
Verify the value of IA, IB, or IC depending on connection Y. Verify that the current reading is between 0.9 and 1.1 amps
rms. Reduce the test current to zero amps.
4-10
ALPS Advanced Line Protection System
4 ACCEPTANCE/PERIODIC TESTS
4.2.5 T4 – AC SYSTEM INPUT TEST
GE Power Management
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