PK: Class 125VDC

Question 1

How long will the Class Batteries provide power on a loss of AC?

Answer 1

2 Hours

Question 2

What prevents the Class Battery Swing Chargers from being aligned to two PK buses at the same time?

Answer 2

A mechanical interlock

Question 3

What from the PK system is required to operate SIC-653 or SID-654?

Answer 3

The Battery and the Battery Charger both have to be on the bus

Question 4

What happens to the DG if its control power from PKA or PKB is lost?

Answer 4

• If its running, it will trip and the output breaker will remain closed causing the DG to motorize.
• If its not running, it won’t start