Perform The Test; Check The Operating Time; Check Trip And Auto-Reclose Cycle - GE MiCOM P40 Agile Technical Manual

Commissioning
MiCOM P40 Agile P442, P444
If cell [351D: GROUP 1 OVERCURRENT, VCO Status] is set to 'Enabled' (overcurrent
function configured for voltage controlled overcurrent operation) or [3502: GROUP 1
OVERCURRENT, I>1 Direction] has been set to 'Directional Fwd' or 'Directional Rev' then
rated voltage should be applied to terminals C19 and C22.
Ensure that the timer will start when the current is applied to the relay.
Note:
5.4.2

Perform the test

Ensure that the timer is reset.
Apply a current of twice the setting in cell [3504: GROUP 1 OVERCURRENT, I>1 Current
Set] to the relay and note the time displayed when the timer stops.
5.4.3

Check the operating time

Check that the operating time recorded by the timer is within the range shown in Table 13.
Note:
Characteristic
DT
IEC S Inverse
IEC V Inverse
IEC E Inverse
UK LT Inverse
IEEE M Inverse
IEEE V Inverse
IEEE E Inverse
US Inverse
Table 13 - Characteristic Operating Times for I>1
5.5

Check Trip and Auto-reclose Cycle

If the autoreclose function is being used, the circuit breaker trip and autoreclose cycle can be
tested automatically at the application-specific settings.
To test the first autoreclose cycle, set cell [0F13: COMMISSIONING TESTS, Autoreclose
Test] to "3 Pole Test". The relay will perform a trip/reclose cycle. Repeat this operation to
test the subsequent autoreclose cycles.
If the timer does not start when the current is applied and stage 1 has been set for
directional operation, the connections may be incorrect for the set direction of
operation set. Try again with the current connections reversed.
Except for the definite time characteristic, the operating times given in Table 13 are
for a time multiplier or time dial setting of 1. Therefore, to obtain the operating time at
other time multiplier or time dial settings, the time given in Table 13 must be multiplied
by the setting of cell [3507: GROUP 1 OVERCURRENT, I>1 TMS] for IEC and UK
characteristics or cell [3508: GROUP 1 OVERCURRENT, Time Dial] for IEEE and US
characteristics.
In addition, for definite time and inverse characteristics there is an additional delay of
up to 0.02 second and 0.08 second respectively that may need to be added to the
relay's acceptable range of operating times.
For all characteristics, allowance must be made for the accuracy of the test equipment
being used.
Operating Time at twice current setting and time
multiplier/time dial setting of 1.0
Nominal
(Seconds)
[3505: I>1 Time-delay] setting
10.03
13.50
26.67
120.00
0.64
1.42
1.46
0.46
P44x/EN CM/Hb6
(CM) 9-39
Range
(Seconds)
Setting ±2%
9.53 - 10.53
12.83 - 14.18
24.67 - 28.67
114.00 - 126.00
0.61 - 0.67
1.35 - 1.50
1.39 - 1.54
0.44 - 0.49