RMU and Transformer Quiz

What is the normal condition of RMU-01 configuration?

• All RMU-01 CLOSE and RMU-C1-02 OPEN

• All RMU-01 CLOSE except RMU-C1-01 and RMU-C1-03 OPEN

• All RMU-01 CLOSE except RMU-C1-01 OPEN

• All RMU-01 CLOSE except RMU-D1-03 OPEN

In normal condition, which supply is RMU-A1 and RMU-B1 from?

• MVSB-A1-3

• MVSB-B1-3

• MVSB-A1-5

• MVSB-B1-5

In normal condition, which supply is RMU-B4 and RMU-C4 from?

• MVSB-A1-5

• MVSB-A1-6

• MVSB-B1-5

• MVSB-B1-6

What is the function of RMU?

• Facilitated by an automatic change over the controller in a break-before-make configuration.

• An electrical interlock circuit between the two incoming ACBs

• To enable the interconnection of all power modules into a ring network.

• To prevent accidental energization of grounded conductors

If RMU on Prefab B is isolated, what happen on other Prefab?

• Generator on Prefab A will start

• Prefab A is on normal condition

• Prefab C and D is no voltage

• Generator on Prefab A and C will start

In normal condition, which one is correct?

• Prefab A and B supplied from Source A and Prefab C and D supplied from Source B

• Prefab A and C supplied from Source A and Prefab B and D supplied from Source B

• Prefab A and D supplied from Source A and Prefab B and C supplied from Source B

• Prefab A, B, C supplied from Source A and Prefab D supplied from Source B

Which panel is used for incoming transformer on A1?

• RMU-A1-01

• RMU-A1-02

• RMU-A1-03

• RMU-A1-00

If Prefab RMU D is isolated, what happen on another Prefab?

• Module A will no voltage

• Generator on Module B will start running

• Module B will no voltage

• Generator on Module C will start running

If we want to isolate transformer D3, which panel do we need to operate?

• OPEN RMU-D3-1, RMU-C3-1 and RMU-C3-3

• OPEN RMU-D3-1, RMU-D3-2, and RMU-D3-3

• OPEN RMU-D3-1 and MSB-D3-2

• OPEN MSB-D3-1 and MSB-D3-2

What is the maximum breakers allowed in one RMU?

• 6 out of 7 breakers

• 7 out of 8 breakers

• 8 out of 9 breakers

• 9 out of 10 breakers