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4.2 GENERAL RELAY TESTS
2. Apply rated DC across CC1 (D2-D18). Using the keypad and the INF: "CC status" command, verify that
CC1 is ON (indicated by a value of 1). Remove the DC from CC1.
3. Apply rated DC across CC2 (D3-D19). Using the keypad and the INF: "CC status" command, verify that
CC2 is ON (indicated by a value of 1). Remove the DC from CC2.
4. Apply rated DC across CC3 (D4-D20). Using the keypad and the INF: "CC status" command, verify that
CC3 is ON (indicated by a value of 1). Remove the DC from CC3.
5. Apply rated DC across CC4 (D5-D21). Using the keypad and the INF: "CC status" command, verify that
CC4 is ON (indicated by a value of 1). Remove the DC from CC4.
6. Apply rated DC across CC5 (D6-D22). Using the keypad and the INF: "CC status" command, verify that
CC5 is ON (indicated by a value of 1). Remove the DC from CC5.
7. Apply rated DC across CC6 (D7-D23). Using the keypad and the INF: "CC status" command, verify that
CC6 is ON (indicated by a value of 1). Remove the DC from CC6.
8. Apply rated DC across CC7 (D8-D24). Using the keypad and the INF: "CC status" command, verify that
CC7 is ON (indicated by a value of 1). Remove the DC from CC7.
9. Apply rated DC across CC8 (D9-D25). Using the keypad and the INF: "CC status" command, verify that
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CC8 is ON (indicated by a value of 1). Remove the DC from CC8.
10. Apply rated DC across CC9 (D10-D26). Using the keypad and the INF: "CC status" command, verify that
CC9 is ON (indicated by a value of 1). Remove the DC from CC9.
11. Apply rated DC across CC10 (D11-D27). Using the keypad and the INF: "CC status" command, verify that
CC10 is ON (indicated by a value of 1). Remove the DC from CC10.
12. Apply rated DC across CC11 (D12-D28). Using the keypad and the INF: "CC status" command, verify that
CC11 is ON (indicated by a value of 1). Remove the DC from CC11.
13. Apply rated DC across CC12 (D13-D29). Using the keypad and the INF: "CC status" command, verify that
CC12 is ON (indicated by a value of 1). Remove the DC from CC12.
This test uses the Present Values to determine that the voltages and currents are connected properly to the
terminal strip. The front target reset button can be used at any time during the test to verify the relay voltages
and currents. Use LPSO-Link and select Report > New > Present Values.
1. Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–16.
2. Set VA to 67 V rms ∠0°, VB to 57 V rms ∠–120°, and VC to 47 V rms ∠120°.
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. Alternately, the Target reset key can be
pressed to view the metering values.
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.
5. Set I
to 1.0 amp rms for phases IA, IB, or IC, as shown by the Y connection point in Figure 4–3: PHASE
op
TO GROUND TEST CONNECTIONS on page 4–16.
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.
7. Reduce the test current to zero amps.
4-
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LPS-O Line Protection System
4 ACCEPTANCE/PERIODIC TESTS
4.2.4 T4 – AC SYSTEM INPUT TEST
GE Power Management
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