Figure 54: Single Line Diagram, The Circuit Breaker Is In The Intermediate Position - ABB UniGear Digital Commissioning And Testing Manual

PA N E L I NT ER N A L I NT ER LO C KI NG
Step 5/6
Move the circuit breaker truck out of the test position about a half turn of the crank. Check
the circuit breaker status on the protection relay LHMI.

Figure 54: Single line diagram, the circuit breaker is in the intermediate position

Step 6/6
Check that the circuit breaker compartment door cannot be open if the circuit breaker is out
of the test position
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AP PAR ATU S CO NTR O L T E S TI NG
1 VLG 5000 17 C