Type 23 Flashcards

1
Q

How many generators are there

A

4

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2
Q

What are there generator outputs t23

A

1.3MW
600v
61.2Hz
3 phase

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3
Q

Why is 600v produced

A

To give additional power to the propulsion motors

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4
Q

What additional breakers are on the T23

A

Electric motor air circuit breaker (EMACB)
Motor generator feeder breaker
Motor generator supply breaker
Alternative supple breaker

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5
Q

What does the converter regulator do

A

Converts 600v to 750v for propulsion motors

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6
Q

What is the voltage required for ships services and how is it produced

A

450v
Motor generator

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7
Q

What is an EDP and how many types are there

A

Electrical distribution panel
Type 1
Type 2
Type 3

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8
Q

What are shedable services and why do we have them

A

They are none important circuits
So that the power can be used elsewhere (propulsion)

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9
Q

What would we do if we lost both motor generators

A

The diesel generator would be reconfigured using the switch at the back of the switchboard so that is could produce 450v

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10
Q

What services are supplied by the emergency switchboard

A

Steering gear
Sickbay
HPSWM
Water pumps
Vent fans

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11
Q

Why do we use electrical propulsion

A

It is quieter for sub hunting

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12
Q

What is the SRPM and knots for 2 diesel generators

A

65
8-9

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13
Q

What is the SRPM and knots for 3 diesel generators

A

80
10-12

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14
Q

What is the SRPM and knots for 4 diesel generators

A

90
14

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15
Q

If the SCC is damaged where else can the propulsion be controlled from

A

Local control panel (LCP)

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16
Q

Describe the cooling for the motor

A

Air comes in through the filter
Pulled in by cooling fans
Pulls heat from the compole, armature, main poles, commutator and brush gears
Is exhausted out into the heat exchanger

17
Q

What is the normal and emergency cooling of the converter cabinet

A

Air is circulated by fans through a heat exchanger
The emergency panels are removed