Class Electrical

Question 1

Name the SIAS Load Shed panels.

Answer 1

NHN-M19
NHN-M20
NHN-M71
NHN-M72

Question 2

Do SIAS Load Shed panels load shed on a LOP?

Answer 2

No

Question 3

If a Class 4160V breaker is fully racked down, what is the status of the adjacent breakers?

Answer 3

They are OOS for seismic concerns.

Question 4

What is done with Class 4160 breakers when racking them out that is not done with Non-Class 4160V breakers? Why?

Answer 4

They are left ~ 2” off the floor for seismic concerns.

Question 5

List the Class 4160V loads.

Answer 5

SP
HPSI
LPSI
CS
EW
EC
A = WC, AFN
B = AFB

Question 6

Which Class train has local/remote disconnect switches?

Answer 6

B Train

Question 7

What is control power for PBA?

Answer 7

PKA-D21

Question 8

What is control power for PBB?

Answer 8

PKB-D22