Power Generation

Question 1

Two types of interfaces?

Answer 1

Power ( Voltage) and Signal ( Comms)

Question 2

What is the purpose of PWRSS?

Answer 2

Fire Control Equipment receiving primary power.

Buffers, converts, regulates, distributes, monitors and controls supplied power

SWS[Loads] launcher, DRS, MTRE, VAMP, Swsmin, missile

Question 3

Purpose of tie breakers?

Answer 3

Connects 1-2:source together. If one removed there is still a supply to FC systems

Question 4

What Equipment makes up the PCME

Answer 4

PDE PBE PCE PMCE

Question 5

What Equipment is in the PCME?

Answer 5

6xPMA 3xVSA 2xAMA 1xDC voltmeter

Question 6

How many buffers to launch missile

Answer 6

Any 2 of 3

Question 7

Alarm indication on 5v?

Answer 7

Indicating push button, to observe supply and reset.

Question 8

Indication of PWRSS on each door

Answer 8

Visual indicator of abnormal status, provided by
PDE PBE PCE PCME

Question 9

270v DC ground fault

Answer 9

Resistance between leg of distribution and ground Less than 75K ohms

Question 10

28v DC ground fault

Answer 10

Distribution and ground Less than 7K - 62K ohms

Question 11

Online monitoring, threshold impedance

Answer 11

Impedance path of less than 9K ohms to ground

Question 12

Purpose of the PPS?

Answer 12

Provide 115v 1ph 5.1Khz power to the Command sequencer and permit setting of RBA fuses

Question 13

Two methods of detecting ground faults

Answer 13

Online fault monitoring- continuous
Ground fault test SMP- periodic

Question 14

PCM

Answer 14

Software program that executes in the DCSS
Displays at Fire Control console

Question 15

Name two missile test modes?

Answer 15

Fuse test and Tactical mode

Question 16

Purpose of a DC Convertor Function

Answer 16

Top provide a stabilise 270vdc to SWS (Fire Control )

Question 17

What range can DC- DC Convertor operate?

Answer 17

210-355V

Question 18

What is the Purpose of 35KW MG’s

Answer 18

Supply 120v 3p 400hz to ships services
Alternate is 2x 10Kw for Nav equipment

Question 19

What is the voltage range and over volt limit

Answer 19

10% range with 351 over volt limit

Question 20

What is the output of the 400hz mg

Answer 20

120V 3ph 400Hz

Question 21

Where is the 1SF switchboard located?

Answer 21

MCC passageway outside entrance to MCC

Question 22

Checks on switchboard and MG

Answer 22

Check voltmeter
Check frequency
Check MG output ammeter ( not overloaded)
Check DC ammeter ( not overloaded)
Check MG for noise, vibration and sparking
Check MG temperatures

Question 23

What is done to brushes if off for an extended period?

Answer 23

Lift brushes and place insulating NOMEX between brushes and commutator

Question 24

What is to be turned of after shutdown of MG?

Answer 24

CW water supply to stop condensation

Question 25

What speed does the over speed trip operate?

Answer 25

Contacts open automatically to secure MG at
1972 +- 20rpm

Question 26

What is the purpose of the motor controller?

Answer 26

DC magnetic controller, connects to the drive
end of MG to ships 270vdc distribution system

Question 27

Periodic checks on SB and MG

Answer 27

Check voltmeter Adjust rehostst
Check frequency meter
Check for noise, vibration and sparking
Check for air temperature