Eaton W-VACi - Technical Parameters 12 Kv W-Vaci IEC Circuit Breaker

65A7355H01 November 2011 www.eaton.com
7
2.4 Technical Parameters 12 kV W-VACi IEC Circuit Breaker
Item
Unit
12kV W-VACi
Voltage (Ur)
kV
12
12
Normal Current(I
r
)
A
630
800
1250
1600
2000
3150
630
800
1250
1600
2000
3150
Short-Time Withstand Current(I
k
)
kA
25
25
25
25
25
25
26.3
26.3
26.3
26.3
26.3
26.3
Short Circuit Breaking Current(I
sc
)
kA
25
25
25
25
25
25
26.3
26.3
26.3
26.3
26.3
26.3
Duration of Short Circuit(t
k
)
sec
3
3
3
3
3
3
3
3
3
3
3
3
Frequency(f
r
)
Hz
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
Short circuit Making Current(I
ma
)
kA
63/
65
63/
65
63/
65
63/
65
63/
65
63/
65
66/65
66/-
66/-
66/-
66/-
66/-
Contact Closing Bounce Time
ms
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
Time Difference of Three Pole Opening
and Closing
ms
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
Fixed Resistance
1
µΩ
≤35
≤35
≤20
≤15
≤15
≤12
≤35
≤35
≤20
≤15
≤15
≤12
DO Resistance
1
µΩ
≤45
≤45
≤35
≤30
≤30
≤25
≤45
≤45
≤35
≤30
≤30
≤25
Closing Time
ms
25~50
25~50
25~50
25~50
25~50
25~50
25~50
25~50
25~50
25~50
25~50
25~50
Opening Time
ms
40~60
40~60
40~60
40~60
40~60
40~60
40~60
40~60
40~60
40~60
40~60
40~60
Closing Speed
1
m/s
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
0.7~
1.3
Opening Speed
1
m/s
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
1.0~
1.7
D.C. Component of Breaking Current(I
dc
)
%
29-35
29-35
29-35
29-35
29-35
29-35
29-35
29-35
29-35
29-35
29-35
29-35
Cable-Charging Breaking Current (C2)
A
25
25
25
25
25
25
25
25
25
25
25
25
Single Capacitor Bank Breaking Current
(C2)
A
400
-
-
-
-
-
400
-
-
-
-
-
Back to Back Capacitor Bank Breaking
Current (C1)
A
400
-
-
-
-
-
400
-
-
-
-
-
Pole to Pole Spacing (Center to Center)
mm
150
150
150
210
210
275
150
150
150
210
210
275
Upper to Lower Terminal Spacing
mm
205
205
275
310
310
310
205
205
275
310
310
310
Mechanical Endurance
2
Cycle
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
Electrical Endurance
Cycle
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
Rated
Insulation
Level
Rated Lighting Impulse
Withstand Voltage(U
p
)
kV
28
28
Rated Power Frequency
Withstand Voltage(U
d
)
kV
75
75
Operating Sequence
O-0.3s-CO-15s-CO
Classification
E2-M2-S1
1:
Testing configurations available upon request
2
: 20K operations can be achieved on the 12kV, 25 kA Breaker