Eaton W-VACi - Technical Parameters 17.5 Kv W-Vaci IEC Circuit Breaker

65A7355H01 November 2011 www.eaton.com
9
2.5 Technical Parameters 17.5 kV W-VACi IEC Circuit Breaker
Item
Unit
17.5kV W-VACi
Voltage (Ur)
kV
17.5
Normal Current(I
r
)
A
630
800
1250
1600
2000
3150
Short-Time Withstand Current(I
k
)
kA
25
25
25
25
25
25
Short Circuit Breaking Current(I
sc
)
kA
25
25
25
25
25
25
Duration of Short Circuit(t
k
)
sec
3
3
3
3
3
3
Frequency(f
r
)
Hz
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
Contact Closing Bounce Time
ms
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
Time Difference of Three Pole
Opening and Closing
ms
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
≤ 2
Fixed Resistance
1
µΩ
≤35
≤35
≤20
≤15
≤15
≤12
DO Resistance
1
µΩ
≤45
≤45
≤35
≤30
≤30
≤25
Closing Time
ms
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
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
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
D.C. Component of Breaking
Current(I
dc
)
%
29-35
29-35
29-35
29-35
29-35
29-35
Cable-Charging Breaking Current (C2)
A
31.5
31.5
31.5
31.5
31.5
31.5
Single Capacitor Bank Breaking
Current (C2)
A
400
-
-
-
-
-
Back to Back Capacitor Bank Breaking
Current (C1)
A
400
-
-
-
-
-
Pole to Pole Spacing (Center to
Center)
mm
150
150
150
210
210
275
Upper to Lower Terminal Spacing
mm
205
205
275
310
310
310
Mechanical Endurance
2
Cycle
10k
10k
10k
10k
10k
10k
Electrical Endurance
Cycle
10k
10k
10k
10k
10k
10k
Rated Insulation Level
Rated Lighting
Impulse
Withstand
Voltage(U
p
)
kV
38
Rated Power
Frequency
Withstand
Voltage(U
d
)
kV
95
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, 25kA Breaker