Cutler-Hammer VCPW-ND Instrukcje - Strona 3

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Type VacClad-W switchgear assemblies are designed with all the bus work completely
insulated for safety. Since the current carrying parts are not readily accessible, type
VCPW-ND Manual Ground and Test Device is designed for insertion into the breaker
compartment to gain access to the primary stationary contacts. It provides a
convenient means to:
1.
Ground a circuit for maintenance work;
2.
Apply potential for cable testing; and,
3.
Access both bus and line circuits for "phasing out" tests.
CAUTION:
BECAUSE OF THE UNIQUE APPLICATION AND VAST VARIETY OF
SYSTEM/USER REQUIREMENTS, THE USER MUST DEVELOP SPECIFIC SAFE
OPERATING PROCEDURES FOR THE USE OF THIS DEVICE.
The device consists of a draw-out element that can be inserted into a circuit breaker
compartment in the same manner as a type VCPW-ND circuit breaker. It includes six
terminals and ground bus connections. Each terminal is isolated from each other and
the bus connection by insulating barriers.
accessible by removing the respective front panel. The ground connection is located in
the lower front section of the device.
VacClad-W switchgear is a two-high arrangement. In the lower compartment the top
terminals normally connect to the main bus and the bottom terminals normally
connect to the incoming line or feeders. In an upper compartment, the opposite
normally holds true, i.e., the top terminals connect to the incoming line or feeders and
the bottom terminals connect to the main bus.
application. Because of this two-high arrangement, the bus and the line positions of
the grounding and test device terminals will vary depending upon whether the device
is used in an upper or lower compartment. Therefore,
THAT THE BUS OR LINE TERMINALS BE CORRECTLY IDENTIFIED FOR
EACH COMPARTMENT BEFORE USING THIS DEVICE.
INTRODUCTION
DESCRIPTION
The upper and lower terminals are
This must be verified for each
IT IS MOST IMPORTANT
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