I.B. 8295A61H03
Page 1
Effective 7/97
SECTION 1: INTRODUCTION
The purpose of this book is to provide instructions for
unpacking, storage, use, operation and maintenance of
Type VCP-WR Vacuum Circuit Breakers. VCP-WR is a
vacuum interrupting element designed for value added
construction. The VCP-WR Red Line family of circuit
breaker elements is comprised of three element types
(Series 18, Series 20 and Series 29). The nominal
widths are 18 inches for Series 18, 20 inches for Series
20 and 29 inches for Series 29. Any one of the three
available elements can be used as a retrofitting drawout
breaker when the customer provides and combines the
appropriate cell interface, truck, levering mechanism,
secondary connections, interlocks and other accessory
items with the VCP-WR element. VCP-WR elements
can also be used for fixed breaker applications with oth-
ers responsible for all required interfaces.
SATISFACTORY PERFORMANCE OF THESE
BREAKERS IS CONTINGENT UPON PROPER APPLI-
CATION, CORRECT INSTALLATION AND ADE-
QUATE MAINTENANCE. THIS INSTRUCTION BOOK
MUST BE CAREFULLY READ AND FOLLOWED IN
ORDER TO OBTAIN OPTIMUM PERFORMANCE FOR
LONG USEFUL LIFE OF THE CIRCUIT BREAKERS.
TYPE VCP-WR BREAKERS ARE PROTECTIVE
DEVICES, AS SUCH, THEY ARE MAXIMUM RATED
DEVICES. THEREFORE, THEY SHOULD NOT
UNDER ANY CIRCUMSTANCES BE APPLIED OUT-
SIDE THEIR NAMEPLATE RATINGS.
!
WARNING
Identification
Rated Values
Related Required Capabilities
Current
Nominal
Nominal
Voltage
Insulation Level
Rated
Rated
Rated
Current Values
Rated
Rated
Voltage
3-Phase
Rated
Rated
Rated Withstand
Inter-
Permis-
Max.
Maxi-
3 Sec.
Closing
Contin-
Short
Class
MVA
Max.
Voltage
Test Voltage
rupting
sible
Voltage
mum
Short
and
uous
Circuit
Class
Voltage
Range
Time
Tripping
Divided
Sym.
Time
Latching
Current
Current
Factor
Delay
by K
Inter-
Current
Capability
at
(at
rupting
Carrying
(Momen-
60 Hz
Rated
Capability
Capability
tary)
Max.
K Times Rated
2.7 K
kV)
Short Circuit
Times
Low
Current
Rated
Fre-
Impulse
KI
Short
Circuit I
E
K
quencey
Y
E/K
Circuit
Breaker
Series
kV
MVA
Current
Type
Width
Amps
kA rms
Class
Class
kV rms
kV rms
kV Crest
Cycles
Sec.
kV rms
kA rms
kA rms
kA Crest
VCP-WR Vacuum Circuit Breaker
50 VCP-WR 250
18, 20, 29 1200
29
4.16
250
4.76
1.24
19
60
5
2
3.85
36
36
97
18, 20, 29 2000
29
3000
50 VCP-WR 350
20, 29
1200
41
4.16
350
4.76
1.19
19
60
5
2
4.0
49
49
132
20, 29
2000
29
3000
75 VCP-WR 500
18, 29
1200
33
7.2
500
8.25
1.25
36
95
5
2
6.6
41
41
111
18, 29
2000
29
3000
150 VCP-WR 500
18
600
18
13.8
500
15
1.30
36
95
5
2
11.5
23
23
62
18, 29
1200
18, 29
2000
29
3000
150 VCP-WR 750
18, 29
1200
28
13.8
750
15
1.30
36
95
5
2
11.5
36
36
97
18, 29
2000
29
3000
150 VCP-WR 1000
29
1200
37
13.8
1000
15
1.30
36
95
5
2
11.5
48
48
130
29
2000
29
3000
150 VCP-WR 1500
29
1200
63
13.8
1600
15
1.0
36
95
5
2
15.0
63
63
170
29
2000
or
29
3000
1500
Table 1.1 VCP-WR Ratings
1-1 TYPE VCP-WR (RED LINE SERIES) RATINGS
Summary of Contents for 150 VCP-WR 1500
Page 2: ......