Installation Manual
3A74374H04 Page 15
Effective 03/13
Table 1.9 (ANSI Standards) Type VCP-WXC Circuit Breaker Through 15 kV Rated Symmetrical Current Basis
(Standard Ratings)
See Page 40 (Figure 5-5A) for Control Schemes and Diagram that apply to this breaker. This Breaker differs from
The Standard Breaker with the addition of a third motor cut-off switch and addition of two wires.
Identification Rated voltage
Voltage Insulation level Capacitor Switching Ratings
Withstand test Short Circuit Current
General
Purpose
Definite Purpose
Back to Back Capacitor Switching
Transient
Recovery
Voltage
(RRRV)
Ma
x
Voltage
V
Voltage
Range
factor
K
Power
Frequency
(1 Min.)
Lightening
Impulse
1.2x50us
Continuous
Current at
60 Hz
Sym.
Inter-
rupting
at V (Isc)
% dc
compo-
nent
(Idc)
Asym.
Inter-
rupting
(It)
Closing
&
Latching
Capa-
bility
Short-
Time
Current
for
3 sec.
Inter-
rupting
Time
(1)
Maximum
Permissible
Tripping
Delay
(3)
Isolated
Shunt
Capacitor
Bank
Current
Capacitor
Bank
Current
Inrush
Current
Inrush
Frequency
Circuit
Breaker
Type
KV rms kV rms kV Peak A rms
kA rms
Total
% kA rms kA Peak
kA rms Ms Seconds kV / µs A rms A rms kA Peak
kHz
Mechanical
Endurance
No-load
Operations
150 VCP-WXC 63
17.5 1 42 95
1200
2000
3000
63
61
61
61
83
83
83
175 63 50 2
1.07
1.07
1.07
200,1600(9)
200,1600(9)
200,1600(9)
7.7
7.7
7.7
465
465
465
10,000
10,000
10,000