VOLTAGE SENSO R S PRIM AR Y TESTING
34 1VLG5 000 17 C
Step 4/8
Make sure there is no voltage on the busbar.
Open the top shutter in the circuit breaker compartment.
Step 5/8
Except the tested phase, connect all other phases together to the grounding bar.
Step 6/8
Connect the tester to the isolated (measured) phase and grounding bar.
Figure 47: Test setup for voltage sensors installed on busbars
Step 7/8
Inject voltage higher than 1% of the primary (nominal) value.
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