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2-1 Description
The PowerVac
5kV VL vacuum circuit breaker
®
is a vertical lift, removable and interchangeable
interrupting element, for use in metal-clad
switchgear to provide protection and control of
electrical apparatus and power systems. The
PowerVac 5kV VL Type PV-VL1 circuit breaker
with ML-19 mechanism is available in continu-
ous current ratings of 1200 and 2000 amperes
in accordance with industry standards.
3
1 Nameplate
2 Cover Mounting Bolts
3 Front Removable Cover
4 Open/Close Indicator
Courtesy of NationalSwitchgear.com
Figure 1. View of 5kV 'VL' Breaker with Front Cover
5 Charge/Discharge Indicator
6 Counter
7 Manual Trip Button
8 Manual Close Button
7
PowerVac
5kV Vertical Lift
®
Chapter 2. Description
Refer to the breaker nameplate for complete rat-
ing information of any particular breaker. The
nameplate also describes the control power re-
quirements for that breaker. The application of
a breaker must be such that its voltage, current
and interrupting ratings are never exceeded.
Since this book is written to include all ratings
of the breaker, as well as several design varia-
tions, the instructions will be of a general char-
acter and all illustrations will be typical unless
otherwise specified.
9 Manual Charge Lever
10 Secondary Coupler
11 Positive Interlock Roller
12 Plunger Interlock (MOC)
13 Primary Bushings (1200 Amp shown)
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