4
1VAL050601-MB Rev C
FOREWORD
This booklet provides information for the Medium Voltage (5kV to 27kV) AMVAC
TM
indoor circuit breakers as described
below. Note: not all sections of this bulletin appllies to all the types of AMVAC
TM
circuit breakers. For example, the
racking and interlock sections only apply to the draw-out (removable) versions and do not apply to the fixed-mount
breaker styles. Also sections on the ED2 board contains all options available on the board but may not be utilized de-
pending upon options ordered. All information in this booklet was current at the time of printing. All references in this
booklet are determined from viewing the circuit breaker from the front.
D
RAWOUT
(
REMOVEABLE
):
A drawout circuit breaker is a breaker that may be removed from a cell without the unbolting of any connections or
mounting supports. It utilizes specific interlock devices that function according to ANSI standards, which allow for the
safe removal of the device with minimal risk to personnel. It is intended for use in SafeGear
®
, ADVANCE
TM
, or
abbreviated versions of ABB and OEM switchgear. It also contains plug-in primary and secondary disconnects with
three physical ANSI operating positions within the cell: Disconnect, Test, and Connected. In the disconnected position
there are no electrical connections. In the test position only, the secondary control wiring is connected via a patented
disconnect mechanism which allows for remote testing of the breaker operations. The connected position, both primary
and secondary circuits are connected and the breaker is ready for normal operation.
F
IXED
-M
OUNT
:
A Fixed-mount circuit breaker is intended to be mounted as a stationary device. It does not contain any racking related
interlocks and/or primary leads. Primary connections are hard bussed to the associated gear in which the breaker is
installed by the consumer. Secondary wiring is terminated on a 5 foot length of wire from the module to secondary
plugs that are the same as the draw-out versions. Plugs and associated pins can be purchased for plug in connection
or the wires may be cut to provide direct connections. The fixed mount version must be provided with the plugs in this
manner to meet UL listing and to insure proper testing of the breaker. The customer is responsible for any damage to
the breaker that is due to mis-wiring of the breaker.
Provided
by
Northeast
Power
Systems,
Inc.
(NEPSI)
Summary of Contents for AMVAC
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Page 46: ...46 1VAL050601 MB Rev C APPENDIX F Provided by Northeast Power Systems Inc NEPSI ...
Page 47: ...47 1VAL050601 MB Rev C APPENDIX G Provided by Northeast Power Systems Inc NEPSI ...
Page 49: ...49 1VAL050601 MB Rev C NOTES Provided by Northeast Power Systems Inc NEPSI ...
