I.B. 32-255-1G
Page 2
Effective 12/02
BOOK MUST BE CAREFULLY READ AND FOL-
LOWED IN ORDER TO OBTAIN OPTIMUM PERFOR-
MANCE FOR LONG USEFUL LIFE OF THE CIRCUIT
BREAKER ELEMENTS.
THE CIRCUIT BREAKER ELEMENTS DESCRIBED IN
THIS BOOK ARE DESIGNED AND TESTED TO OPER-
ATE WITHIN THEIR NAMEPLATE RATINGS. OPERA-
TION OUTSIDE OF THESE RATINGS MAY CAUSE
THE EQUIPMENT TO FAIL, RESULTING IN DEATH,
BODILY INJURY AND PROPERTY DAMAGE.
ALL SAFETY CODES, SAFETY STANDARDS AND/OR
REGULATIONS AS THEY MAY BE APPLIED TO THIS
TYPE OF EQUIPMENT MUST BE STRICTLY ADHERED
TO.
WARNING
1-3 TYPE VCP-W VACUUM CIRCUIT BREAKER ELEMENT RATINGS (TABLES 1.1, 1.2, 1.3, 1.4, 1.5 AND 1.6)
Table 1.1 (ANSI Standards
➀
) Type VCP-W Vacuum Circuit Breaker Through 15 kV Rated Symmetrical Current Basis
➀
Applicable ANSI Standards C37.04-1979, C37.09-1979 and C37.06-1987.
Operating Duty Cycle CO-15 seconds-CO. Operating Time Values: Opening
30-45 ms, Closing 45-60 ms and Reclosing 18 cycles (300 rms).
➁
Non-standard circuit breakers with High Close and Latch (momentary)
rating for special applications.
➂
Consult Application Data 32-265 for further information.
➃
Optional interrupting time of 3 cycles is available.
➄
Also 3-second short time current carrying capability.
Identification Rated Values
Circuit Nominal Nominal Voltage Insulation Level Current Inter- Permis- Maximum Current Values
Breaker Voltage 3-Phase Maximum Voltage Withstand Test Continuous Short rupting sible Voltage Maximum Closing Closing
Type Class MVA Voltage Range Voltage Current Circuit Time
➃
Tripping Divided Symmetrical and and
Class Factor
➂
at 60 Hz Current Delay By K Interrupting Latching Latching
(at Rated Capability Capability Capability
Max. kV) Momentary
Power Impulse K Times 2.7 K 1.6 K
Frequency Rated Short Times Times
(1 Min.) Circuit Rated Rated
Current
➂➄
Short Short
Circuit Circuit
Current Current
E K I Y E/K
kV MVA kV rms kV rms kV Peak Amperes kA rms Cycles Seconds kV rms kA rms kA Peak kA rms
50VCPW-ND250 4.16 250 4.76 1.24 19 60 1200 29 5 2 3.85 36 97 58
50VCP-W250 4.16 250 4.76 1.24 19 60 1200 29 5 2 3.85 36 97 58
2000 132
➁
78
➁
3000
50VCP-W350 4.16 350 4.76 1.19 19 60 1200 41 5 2 4.0 49 132 78
2000
3000
75VCP-W500 7.2 500 8.25 1.25 36 95 1200 33 5 2 6.6 41 111 66
2000
3000
150VCP-W500 13.8 500 15 1.30 36 95 1200 18 5 2 11.5 23 62 37
2000 97
➁
58
➁
3000
150VCP-W750 13.8 750 15 1.30 36 95 1200 28 5 2 11.5 36 97 58
2000 130
➁
77
➁
3000
150VCP-W1000 13.8 1000 15 1.30 36 95 1200 37 5 2 11.5 48 130 77
2000
3000
150VCP-W1500
(63)
13.8 1500 15 1.00 36 95 1200 63 5 2 15.0 63 170 101
2000
3000
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