6. ACCEPTANCE TESTS
6.4. RELAY SETTING
Introduce the following settings in the relay (by means of HMI or GE_Local software):
General Settings Group | Value |
Relay Status | IN SERV |
Identification | N/A |
Frequency | 50 Hz / 60 Hz |
Phase CT Ratio | 1 |
Neutral CT Ratio | 1 |
Breaker Settings | Value |
Breaker Number | N/A |
KI2t Op. Mode | Fixed |
KI2t INT. Time | 0.06s |
KI2t LIMIT | 99999 |
Active Table Set | Value |
Active Table | 1 |
Function Permit | Value |
50BF 1P Function | No Per |
50BF 3P Function | No Per |
3P NO INT Funct | No Per |
50BF Settings Table 1 | Value |
PH Hiset Pickup | 2A |
PH Loset Pickup | 1A |
Neutral Pickup | 1A |
1 Phase Timer T1 | 1s |
3 Phase Timer T2 | 1s |
3P No I Timer T3 | 2s |
BF Logic (3p/2P) | 2 PHASE |
Severe Fault 3P | Per |
Low Load 2P | No Per |
Nº Output Stages | 1 |
2nd Stage Timer | 2s |
Internal Arc Settings Table 1 | Value |
Int Arc Pickup | 1A |
Int Arc Timer | 1s |
The specific settings required for each test are indicated; other settings do not affect the tests.
6.5. INDICATORS
Check that pressing the TARGET RESET button (with relay fed with rated dc power supply) all target LEDs light up.
6.6. POWER SUPPLY
The relay operates with a dc power supply within ± 20% of the rated value. Check that the READY target LED in the front of the relay lights up showing green color.
1.Apply dc rated voltage to terminals
2.Change setpoint FUNCTION PERMIT/50BF 1P FUNCTION to PERM.
3.Apply 2A to terminals
4.Energize digital input CC1 PHASE A BF INITIATE
5.Wait 1second.
6.Check that the READY target LED in the front of the relay lights up showing green color.
7.Check the dc burden (see table below)
30 | DBF Breaker Failure Protection |
