6
Rated voltage
kV
12
17.5
24
Power frequency withstand voltage (50/60 Hz, 1 min)
- Line to line and line to earth
kV
28
38
50
- Between open contacts
kV
32
45
60
Lightning impulse withstand voltage (BIL 1.2/50 µs)
- Line to line and line to earth
kVp
75
95
125
- Between open contacts
kVp
85
110
145
Rated frequency
Hz
50-60
50-60
50-60
Rated current (40 °C)
A
800 (1)
800 (1)
630
Admissible rated short-time withstand current
kA
25 (2s) (2)
20 (3s) (2)(3)
16 (3s) - 20 (3s) (2)(3)
Making capacity (peak current)
kAp
62.5
52.5
40-52.5
Breaking capacity
- Active load
A
800 (1)
800 (1)
630
- No-load transformers
A
16
16
16
- No-load lines
A
25
25
25
- No-load cables
A
50
50
50
- Ring circuits
A
800 (1)
800 (1)
630
Mechanical and electrical performance
Electrical endurance of the line contact
class
E3 - up to 5 makings and 100 rated current interruptions
Electrical endurance of the earth contact
class
E2 - up to 5 makings
Mechanical endurance of the line contact with operating
mechanism
1S – Single spring
class
M2 – 5000 mechanical operations
Mechanical endurance of the line contact with operating
mechanism
2S – Double spring
class
M1 – 1000 mechanical operations
Mechanical endurance of the earth contact
class
M0 – 1000 mechanical operations
(1) 630A for GSec/T2
(2) 16kA (3s) for GSec/T2
(3) For 21kA (3s) please contact ABB
5.1. Performance and electrical characteristics
Earthing switch type EF 230
Admissible short-time withstand current (3 s):
2 kA
Short-time peak current value (3s)
5 kAp
Short-circuit rated making capacity
5 kAp
Number of short-circuit current makes
Class E2
Earthing switches type ES230 16kA
Admissible short-time withstand current (3 s):
16kA to 24kV
Short-time peak current value (3s)
40kA to 24kV
Short-circuit rated making capacity
40kA to 24kV
Number of short-circuit current makes
Class E2
Earthing switches type ES230 21-25kA
Admissible short-time withstand current (3 s):
25kA to 12kV, 21kA
to 24kV
Short-time peak current value (3s)
62.5 kA to 12 kV
Short-circuit rated making capacity
52.5 kA to 24 kV
Number of short-circuit current makes
Class E2 line side
Class E2 earth side
5. Description
Содержание GSec/IB
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