Acceptance Test For High Impedance Module; Wiring And Necessary Equipment; Continuity; Isolation Test - GE Multilin MIB Instruction Manual

8 RELAY COMMISSIONING

8.15ACCEPTANCE TEST FOR HIGH IMPEDANCE MODULE

Necessary equipment:
1 AC voltage source.
1 DC voltage power supply.
1 timer.
1 Multi-meter.
Typical wiring diagram:
Test equipment:
An Multimeter or continuity measurer with a maximum threshold of 110 Ω.
Method:
Check for continuity between the grounded screw and any metallic point of the case that has no painting on it.
IMPORTANT:
During all tests, the screw located on the rear of the relay must be grounded.
For verifying isolation, independent groups will be created, and voltage will be applied as follows:
2500 RMS volts will be applied progressively among all terminals in a group, short-circuited between them and the
case, during one second. In case the Hi-Pot device used to test the relay trips due to excessive consumption, apply the
test between each group and ground one at a time.
2500 RMS volts will be applied progressively between groups, during one second.
• Group 1 (LATCHING RELAY contacts): A5 – A6 – A7 – A8– A9 – A10– A11 – A12– B1 – B2– B3 – B4– B5 – B6
• Group 2 (LATCHING RELAY coils):
• Group 3 (Pushbutton):
• Group 4 (Analogical Group):
Consumption will not be higher than 20 mA.
Latching relay Coil Resistor (HID module)
POWER SUPPLY
LO
HI
NOTE: Accuracy of 20%.
GEK-106426B
8.15 ACCEPTANCE TEST FOR HIGH IMPEDANCE MODULE
(3000) B5177F1
(2000) B5177F2
(1000) B5177F3
– B7 – B8
A1 – A4 – B9 – B12
C5 – C6 – C7 – C8
C10 – C11 – C12 – D6 – D7 – D8 – D2 – D3 – D4
A1 – A3 TERMINALS
340 OHM
2K15
MIB High Impedance Bus Differntial Relay

8.15.1 WIRING AND NECESSARY EQUIPMENT

8.15.2 CONTINUITY

8.15.3 ISOLATION TEST

B10 – B12 TERMINALS
340 OHM
2K15

8.15.4 MEASURES

8
8-15