I.B. 3A74792H04
Page 2
Effective 7/97
THE CIRCUIT BREAKERS DESCRIBED IN THIS
BOOK ARE DESIGNED AND TESTED TO OPERATE
WITHIN THEIR NAMEPLATE RATINGS. OPERATION
OUTSIDE OF THESE RATINGS MAY CAUSE THE
EQUIPMENT TO FAIL, RESULTING IN DEATH, BODI-
LY 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.
Identification Rated Values
Circuit
Nominal Voltage
Insulation Level
Current
Inter-
Maximum
Transient
Current Values
Breaker
Voltage
Maximum
Voltage Withstand Test
Continuous
Short
rupting
Permis-
Recovery
Closing
Low
Out of
Capacitor Switching Ratings
Type
Class
Voltage
Range
Voltage
Current
Circuit
Time
sible
Voltage
Latching
Inductive
Phase
General Purpose
Definite Purpose
Factor
at 60 Hz
Current
➃
Tripping
(TRV)
Capability
Switching
Switching
Overhead
Cable
Isolated
Overhead
Isolated
Back to Back
Delay
E2
T2
(Momen-
Line
Charging
Shunt
Line
Shunt
Capacitor Switching
Rise
tary)
Current
Current
Capac-
Current
Capac-
Cable Capacitor
Time
itor
itor
Charging Bank
Power
Impulse
3 Second
(2.7 K
Bank
Bank
Current Current
Frequency
➂
Short
Times
Current
Current
➄
(1 Minute)
Time
Rated
Current
Short
Carrying
Circuit
Capability
Current)
E
K
I
Y
kV Class
kV rms
kV rms
kV Peak
Amperes,
kA rms
Cycles
Seconds
kV Peak
µs
kA Peak
Amperes,
kA
Amperes, rms
Amperes, rms
rms
rms
380 VCP-W 16
34.5
38
1.0
80
170
600
16
5
2
71
125
43
15
4
5
50
100
5
250
50 250
➁
1200
➁
1600
2000
380 VCP-W 25
34.5
38
1.0
80
170
600
25
5
2
71
125
68
15
6.3
5
50
100
5
250
50 250
➁
1200
➁
1600
2000
380 VCP-W 32
34.5
38
1.0
80
170
600
31.5
5
2
71
125
85
15
7.9
5
50
100
5
250
50 250
➁
1200
➁
1600
2000
380 VCP-W 21
34.5
38
1.65
80
170
1200
21
5
2
71
125
95
15
5.3
5
50
100
5
250
50 250
➅
2000
➅
➀
KEMA tested to applicable ANSI Standards C37.04 - 1979, C37.09 - 1979, Proposed C37.06 - 199X, (operating duty, sequence
CO-15 seconds-CO). Typical operating time values: opening 45 ms, closing 75 ms, and reclosing 18 cycles.
➁
K=1.0, therefore E=E/K and I=KI, consult Application Data 32-265 for further information.
➂
The ANSI standard requires 150 kV BIL, all ratings tested to 170 kV BIL.
➃
3-cycle interrupting time capability is available.
➄
Tested at 20 kA, 4.4 kHz inrush current. Higher currents available, consult Cutler-Hammer.
➅
At Rated maximum voltage divided by K=23 kV rms, Rated maximum symmetrical interrupting capability=KI=35 kA rms.
1-3 TYPE VCP-W VACUUM CIRCUIT BREAKER RATINGS (TABLE 1.1)
Table 1.1 Type VCP-W Vacuum Circuit Breaker on Symmetrical Current Rating Basis
➀
!
WARNING
Содержание Cutler-Hammer VCP-W
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