Eaton VCP-W Instructions For Installation, Operation And Maintenance page 9

IB131006EN
Table 1.2 (ANSI Standards) Type VCP-W Vacuum Circuit Breaker 27 kV Rated Symmetrical Current Basis
Identification Rated Values
Circuit Nominal Nominal
Breaker Voltage 3-Phase
Type Class MVA
Class
kV MVA
270VCP-W750 27 750
( 1 6 )
( A )
27 1000
270VCP-W1000
( 2 2 )
( A )
27 1250
270VCP-W1250
( 2 5 )
( A )
27 1600
270VCP-W1600
( 3 2 )
27 2000
270VCP-W2000
( 4 0 )
( B )

CESI tested to applicable ANSI Standards C37.04 - 1979, C37.09 - 1979, and
C37.06 -199X. Consult Eaton for CESI reports on file. Operating duty
cycle CO-15 seconds-CO. Operating time values: opening 33-55 ms,
closing 50-60 ms and reclosing 18 cycles (300 ms).
Table 1.3 (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
Max
Voltage
Withstand test
Type Voltage
Range
factor
Power
Frequency
(1 Min.)
V
K
KV rms kV rms kV Peak
50 VCP-W 40C 5.95 1 24
50 VCP-W 50C 5.95 1 24
75 VCP-W 50C 10.3 1 42
150 VCP-W 25C 17.5 1 42
150 VCP-W 40C 17.5 1 42
150 VCP-W 50C 17.5 1 42
150 VCP-W 63C 17.5 1 42
270 VCP-W 25C
27 1 60
(A)
270 VCP-W 32C
27 1 60
270 VCP-W 40C
27 1 60
(B)
(1) 3 cycles
(2) Close & Latch Current for 1 200A Type 150 VCP-W 25C is proven at
15kV. For sealed interrupters at high altitudes, switching voltage is
not de-rated.
(3) For higher RRRV contact Eaton for more information.
E f f ec t iv e 0 7/ 2 0 1 7
Courtesy of NationalSwitchgear.com
Voltage Insulation Level
Maximum Voltage Withstand Test
Voltage Range Voltage
Factor
Power
Impulse
Frequency
(1 Min.)
E K
kV rms kV rms
1.0
27 60 125
27 1.0 60 125
1.0
27 60 125
27 1.0 60 125
27 1.0 60 125
Short Circuit Current
Sym. % dc
Lightening Continuous
Inter- compo-
Impulse Current at
rupting nent
1.2x50us 60 Hz
at V (Isc) (Idc)
kA rms
A rms % kA rms kA Peak kA rms
Total
1200
75 2000 40 75
3000
1200 57
75 2000 50 57
3000 52
1200 57
95 2000 50 57
3000 52
1200 50
95 2000 25 75
3000 75
1200
95 2000 40 75
3000
1200 57
95 2000 50 57
3000 52
1200 61
95 2000 63 61
3000 61
1200
125 25 75
1600
1200
125 31.5 57
1600
1200
125 40 50
1600
(4) Breaker tested to 2700A single bank switching for momentary
load (Thermal derating must consider harmonic content of
current waveform).
(5) Breaker tested to 1 270A back-to-back switching for momentary
load (Thermal derating must consider harmonic content of
Inter-
Current rupting
Time 
Continuous Short
Current Circuit
at 60 Hz Current
3 Second
Short time
Current
Carrying
Capability
I
Amperes kA rms Cycles
16 5
600
1200
2000
22 5
600
1200
2000
25 5
600
1200
2000
1200 31.5 5
2000
1200 40 5
2000
(A) Tested at 28.5kV RMS.

K=1.0, therefore E = E/K and I = KI. Consult Application Data 32-265 for further
information.

Optional interrupting time of 3 cycles is available.

Also maximum interrupting rating.
Transient
Inter- Maximum
Recovery
rupting Permissible
Closing Short-
Asym. Time Tripping
& Time
Delay
Inter-
Latching Current
rupting (1)
Capa- for
(It)
bility 3 sec.
Ms Seconds
58 139 40 50 2
64
64 139 50 50 2
62
64
64 139 50 50 2
62
31
36 97 (2) 25 50 2
36
58 139 40 50 2
64
64 139 50 50 2
62
83
83 175 63 50 2
83
36 85 25 (8) 50 2
40 97 32 (7) 50 1
49 104 40 (7) 50 1
Permis-
sible Transient Recovery Voltage Current Values
Tripping
Delay
E Closing
t
2
2
and
Rise
Latching
Time
Capability
2.7 K
Times
Rated
Short
Circuit
Y
Current
Seconds kV rms kA rms kA Peak
2 51 105 43
2 51 105 60
2 51 105 68
2 51 105 85
2 51 105 106
(B) Tested at 29.2kV RMS.
Capacitor Switching Ratings
General
Definite Purpose
Purpose
Isolated
Voltage
Back to Back Capacitor Switching
Shunt
(RRRV)
Capacitor
Capacitor
Inrush Inrush
Bank
Bank
Current Frequency
(3)
Current Current
kV / µs A rms A rms kA Peak kHz
0.9 630 (5) 15
0.9 1000 (5) 18
0.8 — —
0.9 630 (5) 15
0.9 1000 (5) 18
0.8 — —
0.9 630 (5) 15
0.9 1000 (5) 18
0.8 — —
0.95 600 (6) 20
0.9 1000 (5)(6) 18
0.8 — —
0.9 630 (4) 630 (5)(6) 15
0.9 630 (4) 1000 (5)(6) 18
0.8 250 (4) — —
0.9 630 (4) 630 (5)(6) 15
0.9 630 (4) 1000 (5)(6) 18
0.8 250 (4) — —
1.07 200,1600(9) 7.7
1.07 200,1600(9) 7.7
1.07 200,1600(9) 7.7
1.1 20
400
20
1.1 400
20
1.1 400
Current waveform)
(6) Capacitor Switching Ratings are proven at 15kV. For sealed
interrupters at high altitudes, switching voltage is not de-rated.
(7) 1 second
(8) 2 second
(9) C37.04a-2003 Class C2 @ 15kV
P a g e 3
Capacitor
Switching
Cable
Charging
kA rms
31.5
31.5
31.5
31.5
31.5
Mechanical
Endurance
No-load
Operations
3.5 10,000
2.7 10,000
— 5,000
3.5 10,000
2.7 10,000
— 5,000
3.5 10,000
2.7 10,000
— 5,000
3.5 10,000
2.7 10,000
— 5,000
3.5 10,000
2.7 10,000
— 5,000
3.5 10,000
2.7 10,000
— 5,000
465 10,000
465 10,000
465 10,000
4.2
2,500
4.2
2,500
4.2
2,500