9-12 F650 Digital Bay Controller GE Multilin
9.10 INSTANTANEOUS OVERCURRENT (50PH, 50PL, 50N, 50G Y 50SG) 9 COMMISSIONING
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9.10INSTANTANEOUS OVERCURRENT (50PH, 50PL, 50N, 50G Y 50SG)
Set the relay to trip for the protection element being tested. Configure any of the outputs to be activated only by the
protection element being tested.
Apply 0.9 times the Pickup current and check that the relay does not trip.
Gradually increase the current value and verify that the relay operates between 1 and 1.1 times the set pickup current. The
relay must trip by instantaneous in a time frame of 10 to 55 ms. All the relay trip contacts must operate, as well as the
contact set as 50.
Remove current and apply it again suddenly to a value of 4 times the pickup current. The relay should trip instantaneously
in a time frame of 10 to 45 ms.
Test one point for each phase and group of the protection element.
50 ELEMENTS TEST PARAMETERS
Element Settings (50PH, 50PL, 50G y 50SG)
Setting Value Units
Function Enabled
Input RMS NA
Pickup Level 3 A
Delay time 0 Seconds
Test Execution
Configure one output for 50 Trip
Apply times I pickup Element Trip Tripping times (ms)
0.9 x Pickup NO NA
1.1 x Pickup YES 10-55
4 x Pickup YES 10-45
Elements Phase Group
50PH and 50PL IA 0
IB 0
IC 0
50G IG 0
50SG ISG 0
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