MIL-DTL-16036M(SH)
n. Test receptacles with test plugs for connecting portable instruments to the metering current and potential
circuits. Removal of the receptacle protective cover shall automatically short circuit the secondary winding of
metering current transformers, so that only the meters are electrically removed from the secondary circuit.
o. One temperature indicator with selector switch and accessories, when temperature detectors are provided
with the generator as specified (see 6.2).
3.4.1.3 AC bus tie unit for switchgear groups having an EPCP, or having both an EPCP and EPCC. The
following shall be mounted within the unit:
a.
One bus tie circuit breaker.
b.
One feeder circuit breaker.
c.
Necessary disconnecting devices for performing isolation functions as may be required (see 6.2).
d. Potential transformers, for metering and relaying, and for synchronizing, in number as required for the bus
connections of the switchgear group.
e.
One current transformer for metering the current interchange through the bus tie circuit breaker.
f. Dead-front fuse panel for fusing the potential and control power transformer primary circuits. Dead-front
fuseholders shall be of the type listed in 3.14.2.1 in accordance with MIL-PRF-19207.
g.
Indicator light (blue) to show the closed position of the bus tie and feeder circuit breaker.
Bus tie units of the switchgear group containing the shore power connection shall be designated as a "bus tie and
shore power unit". In addition, this unit shall substitute item (h) for the feeder circuit breaker, and add items (i) and
(j) below:
h. Circuit breakers, Type AQB-LF, electrically-operated, 400-ampere frame size shall be furnished on only
one bus tie unit of any switchgear group. One shall be provided for each shore power receptacle. The shore power
circuit shall be connected to the bus tie circuit so that power may be fed to either the local or remote switchboard
through a bus tie circuit breaker. Where more than four circuit breakers are required, a separate switchgear unit may
be provided.
i.
Current transformers for metering the total shore power current.
j.
Potential transformers for metering and synchronizing, in number as required.
3.4.1.4 AC bus tie unit for switchgear groups not having an EPCP or EPCC. The following shall be mounted
within the unit:
a.
One bus tie circuit breaker.
b.
One feeder circuit breaker.
c.
Necessary disconnecting devices for performing switching functions as may be required.
d. Potential transformers for metering and relaying, and for synchronizing, in number as required for the bus
connections of the switchgear group.
e. Dead-front fuse panel for fusing the control circuits fed from the control power bus. Dead-front
fuseholders shall be of the type listed in 3.14.2.1 in accordance with MIL-PRF-19207.
f. Dead-front fuse panel for fusing the potential and control power transformer primary circuits. Dead-front
fuseholders shall be of the type listed in 3.14.2.1 in accordance with MIL-PRF-19207.
3.4.1.4.1 Front panel. The following shall be mounted on the front panel of the bus tie unit:
a. One polyphase wattmeter, calibrated to indicate the three-phase power output of remote ship s service
generator.
b. One AC ammeter for indicating the current of remote ship s service generator and from the shore power
connection.
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