Introduction; Type Vcp-Wr (Red Line Series) Ratings - Eaton Cutler-Hammer VCP-WR 18 Series Instructions For The Use, Operation And Maintenance

I.B. 8295A61H03
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.

1-1 TYPE VCP-WR (RED LINE SERIES) RATINGS

Table 1.1 VCP-WR Ratings
Identification Rated Values
Current
Rated
Contin-
uous
Current
at
60 Hz
Circuit
Breaker Series
Type Width Amps
VCP-WR Vacuum Circuit Breaker
50 VCP-WR 250 18, 20, 29 1200
18, 20, 29 2000
29 3000
50 VCP-WR 350 20, 29 1200
20, 29 2000
29 3000
75 VCP-WR 500 18, 29 1200
18, 29 2000
29 3000
150 VCP-WR 500 18 600
18, 29 1200
18, 29 2000
29 3000
150 VCP-WR 750 18, 29 1200
18, 29 2000
29 3000
150 VCP-WR 1000 29 1200
29 2000
29 3000
150 VCP-WR 1500 29 1200
29 2000
29 3000
Effective 7/97
Nominal Nominal Voltage
Rated Voltage 3-Phase Rated
Short Class MVA Max.
Circuit Class Voltage
Current
(at
Rated
Max.
kV)
I E
kV MVA
kA rms Class Class kV rms
29 4.16 250 4.76
41 4.16 350 4.76
33 7.2 500 8.25
18 13.8 500 15
28 13.8 750 15
37 13.8 1000 15
63 13.8 1600 15
or
1500
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.
Insulation Level Rated
Rated Rated Withstand Inter-
Voltage Test Voltage rupting sible
Range Time
Factor
Low
Fre- Impulse
K quencey
kV rms kV Crest Cycles
1.24 19 60 5
1.19 19 60 5
1.25 36 95 5
1.30 36 95 5
1.30 36 95 5
1.30 36 95 5
1.0 36 95 5
!
WARNING
Related Required Capabilities
Rated Rated Current Values
Permis- Max. Maxi- 3 Sec.
Voltage mum Short
Tripping Divided Sym. Time
Delay by K Inter- Current
rupting Carrying
Capability Capability
K Times Rated
Short Circuit
Current
KI
Y E/K
Sec. kV rms kA rms kA rms
2 3.85 36
2 4.0 49
2 6.6 41
2 11.5 23
2 11.5 36
2 11.5 48
2 15.0 63
Page 1
Closing
and
Latching
Capability
(Momen-
tary)
2.7 K
Times
Rated
Short
Circuit
Current
kA Crest
36 97
49 132
41 111
23 62
36 97
48 130
63 170