Figure 92: Entering Test Mode; Figure 93: Single Line Diagram, The Circuit Breaker Is Closed And In The Service Position - ABB UniGear Digital Commissioning And Testing Manual

I NT ER LO C K S BE T W EE N PA NE L S
Step 2/11
On the protection relay LHMI (upstream circuit breaker such as the Incomer, Generator and
Bus tie receiving the ARCSARC trip signal) go to -> Main Menu/Test/IED test
– Test mode = IED test
The ready LED is flashing when the protection relay is in test mode.

Figure 92: Entering test mode

Step 3/11
On the protection relay LHMI (tested feeder) go to -> Main Menu/Test/IED test
– Test mode = IED test
The ready LED is flashing when the protection relay is in test mode.
Step 4/11
Close all circuit breakers in the relative section. Check all the circuit breakers status on the
protection relay LHMIs.

Figure 93: Single line diagram, the circuit breaker is closed and in the service position

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AP PAR ATU S CO NTR O L T E S TI NG
1 VLG 5000 17 C