Table of Contents
Instructions for installation,
operation, and maintenance of type
VCP-W vacuum circuit breakers
Table 3. (ANSI Standards) type VCP-WC extra capability vacuum circuit breaker 5-27 kV rated symmetrical current basis.
Identification
Rated voltage
Circuit
Voltage
Insulation level
breaker
withstand test
Max.
Voltage
type
voltage
range
factor
Power
freq-
uency
V
K
(1 min.)
KV rms
kV rms
5.95
1
24
50 VCP-W
40C
50 VCP-W
5.95
1
24
50C
75 VCP-W
10.3
1
42
50C
150 VCP-W
17.5
1
42
25C
150 VCP-W
17.5
1
42
40C
150 VCP-W
17.5
1
42
50C
150 VCP-W
17.5
1
42
63C
270 VCP-W
27
1
60
25C
270 VCP-W
27
1
60
32C
270 VCP-W
27
1
60
40C
3 cycles
a
Close & latch current for 1200 A Type 150 VCP-W 25C is proven at 15 kV. For sealed interrupters at high altitudes, switching voltage is not de-rated.
b
For higher RRRV contact Eaton for more information.
c
Breaker tested to 2700 A single bank switching for momentary load (Thermal derating must consider harmonic content of current waveform).
d
Breaker tested to 1270 A back-to-back switching for momentary load (Thermal derating must consider harmonic content of current waveform)
e
Capacitor switching ratings are proven at 15 kV. For sealed interrupters at high altitudes, switching voltage is not de-rated.
f
1 second
g
2 second
h
C37.04a-2003 class C2 @ 15 kV
i
Table 4. (IEC-56 Standards
a
Identification
Rated values
Circuit
Voltage class
breaker type
kV rms
36VCPW-ND25
3.6
36VCPW-ND32
3.6
72VCPW-ND25
7.2
72VCPW-ND32
7.2
36VCP-W25
3.6
36VCP-W32
3.6
36VCP-W40
3.6
72VCP-W25
7.2
72VCP-W32
7.2
72VCP-W40
7.2
120VCP-W25
12.0
120VCP-W32
12.0
120VCP-W40
12.0
175VCP-W25
17.5
175VCP-W32
17.5
175VCP-W40
17.5
Interrupting time is 3 cycles at 50/60 Hz. Rated operating sequence 0-3 min- CO-3 min-CO.
a
Short circuit current
Sym
% DC
inter-
comp-
rupting
onent
at V
(Idc)
Lighten-
Cont-
(Isc)
ing
inuous
impulse
current
1.2x50us
at
60 Hz
kA rms
kV peak
A rms
total
%
75
1200
40
75.
2000
3000
75
1200
50
57
2000
57
3000
52
95
1200
50
57
2000
57
3000
52
95
1200
25
50
2000
75
3000
75
95
1200
40
75
2000
3000
95
1200
50
57
2000
57
3000
52
95
1200
63
61
2000
61
3000
61
125
1200
25
75
1600
125
1200
31.5
57
1600
125
1200
40
50
1600
) type VCP-W vacuum circuit breaker through 17.5 kV rated symmetrical current basis.
Insulation level
Power
Impulse
frequency
withstand
kV rms
kV peak
10
40
10
40
20
60
20
60
10
40
10
40
10
40
20
60
20
60
20
60
28
75
28
75
28
75
38
95
38
95
38
95
Inter-
rupt-
Asym.
Closing
Short-
ing
inter-
&
time
time
rupting
latching
current
(It)
capa-
for 3
a
bility
sec.
kA
kA rms
peak
kA rms
Cycles
58
139
40
3
64
139
50
3
64
62
64
139
50
3
64
62
31
97
25
3
b
36
36
58
139
40
3
64
139
50
3
64
62
83
175
63
3
83
83
36
85
25
3
h
40
97
32
3
g
49
104
40
3
g
Normal
Short circuit
current
breaking current
Amperes
kA rms
630, 1250
25
630, 1250
31.5
630, 1250
25
630, 1250
31.5
630, 1250, 2000
25
1250, 2000
31.5
1250, 2000
40
630, 1250, 2000
25
1250, 2000
31.5
1250, 2000
40
630, 1250, 2000
25
1250, 2000
31.5
1250, 2000
40
1250, 2000
25
1250, 2000
31.5
1250, 2000
40
Instruction Booklet IB131006EN
Max.
Transient
Capacitor switching ratings
permis
recovery
General
Definite purpose
sible
voltage
purpose
trip-
(RRRV)
ping
delay
Isolated
Back to back capacitor
shunt
switching
capacitor
Capacitor
bank
c
bank
current
current
Sec.
kV / µs
A rms
A rms
2
0.9
630
e
0.9
1000
e
0.8
—
2
0.9
630
e
0.9
1000
e
0.8
—
2
0.9
630
e
0.9
1000
e
0.8
—
2
0.95
600
f
0.9
1000
ef
0.8
—
2
0.9
630
630
d
ef
0.9
630
1000
d
ef
0.8
250
—
d
2
0.9
630
630
d
ef
0.9
630
1000
d
ef
0.8
250
—
d
2
1.07
200,1600
1.07
200,1600
1.07
200,1600
2
1.1
400
1
1.1
400
1
1.1
400
3 second short
Short circuit
time current
making current
kA rms
kV peak
25
63
31.5
79
25
63
31.5
79
25
63
31.5
79
40
100
25
63
31.5
79
40
100
25
63
31.5
79
40
100
25
63
31.5
79
40
100
EATON www.eaton.com
Effective March 2019
Mech-
anical
endur-
ance
No-
Inrush
Inrush
load
current
freq-
oper-
uency
ations
kA
peak
kHz
15
3.5
10,000
18
2.7
10,000
—
—
5,000
15
3.5
10,000
18
2.7
10,000
—
—
5,000
15
3.5
10,000
18
2.7
10,000
—
—
5,000
20
3.5
10,000
18
2.7
10,000
—
—
5,000
15
3.5
10,000
18
2.7
10,000
—
—
5,000
15
3.5
10,000
18
2.7
10,000
—
—
5,000
7.7
465
10,000
i
7.7
465
10,000
i
7.7
465
10,000
i
20
4.2
2,500
20
4.2
2,500
20
4.2
2,500
Cable charging
breaking amps
Amperes
25
25
25
25
25
25
25
25
25
25
25
25
25
31.5
31.5
31.5
9
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