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1.2 Main technical parameters
Main technical data and circuit breaker technical parameters are presented in the tables below.
Type
Rated voltage (Ur)
Rated normal current (Ir)
Rated power frequency withstand voltage (Ud)
Rated lightning impulse withstand voltage (peak) (Up)
Rated short-circuit breaking current (Isc)
Rated peak withstand current (Ip)
Rated short-time withstand current (Ik)
Rated duration of short circuit (tk)
Rated frequency (fr)
Mechanical life (CO-cycles)
Maximum number of CO-cycles per hour
Operating cycles, rated–short circuit breaking current
Closing time
Opening time
Break time
Rated operating sequence at rated normal current
Rated operating sequence at rated short-circuit
breaking current
11)
Auxiliary circuits insulation strength
Power frequency test voltage (1 min) according to
IEC60255-27
Lightning impulse 1.2 m s/50 m s/0.5 J according to
IEC60255-27
Insulation resistance, 1000V DC according to
IEC60255-27
Design class of switching module with regard to
severity of service conditions in accordance with IEC
60932
VCB15_LD1
VCB15_LD3 VCB15_LD6
12 kV
17.5 kV
12 kV
12 kV
800 A
800 A
630 A
4)
4)
28 (42)
38 (42)
4)
4)
28 (42)
kV
28 (42)
kV
kV
75 kV
95 kV
75 kV
75 kV
7)
7)
7)
20 kA
20 kA
20 kA
52kA
52kA
52kA
20 kA
20 kA
20 kA
4 s
4 s
4 s
50/60 Hz
50/60 Hz
50/60 Hz
50 000
50 000
20 000
60
60
60
100
100
100
≤ 70
≤ 70
≤ 70
9)
9)
9)
ms
ms
ms
≤ 35
≤ 35
≤ 35
9)
9)
9)
ms
ms
ms
≤ 45
9)
≤ 45
9)
≤ 45
9)
ms
ms
ms
2 kV
2 kV
2 kV
5 kV
5 kV
5 kV
≥ 5 MOhm
≥ 5 MOhm
≥ 5 MOhm
Class 1
Class 1
Class 1
VCB15_LD8 VCB15_MD1 VCB15_MD3 VCB15_Shell2 VCB15_HD1 VCB25_LD1
17.5 kV
17.5 kV
17.5 kV
800 A
1250 A
1250 A
4)
4)
kV
38 (42) kV
38 (42) kV
38 (42) kV
5)
95 kV
95 kV
95 kV
7
7)
20 kA
31.5 kA
31.5 kA
52kA
82 kA
82 kA
20 kA
31.5 kA
31.5 kA
4 s
4 s
4 s
50/60 Hz
50/60 Hz
50/60 Hz
50 000
30 000
50 000
60
60
60
100
50
50
≤ 70
≤ 60
≤ 60
9)
9)
9)
ms
ms
≤ 35
≤ 35
≤ 35
9)
9)
9)
ms
ms
≤ 45
9)
≤ 45
9)
≤ 45
9)
ms
ms
O-0.3s-CO-10s-CO-10s-CO
O-0.3s-CO-15s-CO
2 kV
2 kV
2 kV
5 kV
5 kV
5 kV
≥ 5 MOhm
≥ 5 MOhm
≥ 5 MOhm
Class 1
Class 0
Class 0
Table 1 - Main technical parameters
17.5 kV
17.5 kV
24 kV
1)
2)
1250 A
2000 A
800 A
3)
2000 A
3150 A
4)
4)
4)
38 (42) kV
38 (42) kV
50 kV
5)
6)
95 kV
95 kV
125 kV
7)
7)
7)
31.5 kA
31.5 kA
16 kA
82 kA
82 kA
42 kA
31.5 kA
31.5 kA
16 kA
4 s
4 s
4 s
50/60 Hz
50/60 Hz
50/60 Hz
8)
8)
30 000
30 000
30 000
60
60
60
50
50
50
≤ 60
≤ 60
≤ 60
9)
9)
ms
ms
ms
≤ 35
≤ 35
≤ 35
9)
9)
ms
ms
ms
≤ 45
9)
≤ 45
9)
≤ 45
ms
ms
ms
10)
2 kV
2 kV
2 kV
5 kV
5 kV
5 kV
≥ 5 MOhm
≥ 5 MOhm
≥ 5 MOhm
Class 0
Class 0
Class 0
VCB25_LD2
VCB25_LD3
24 kV
24 kV
800 A
800 A
50 kV
50 kV
125 kV
125 kV
7)
7
7)
16 kA
16 kA
42 kA
42 kA
16 kA
16 kA
4 s
4 s
50/60 Hz
50/60 Hz
8)
8)
30 000
30 000
60
60
50
50
≤ 60
≤ 60
9)
9)
9)
ms
ms
ms
≤ 35
≤ 35
9)
9)
9)
ms
ms
ms
9)
≤ 45
9)
≤ 45
9)
ms
ms
ms
2 kV
2 kV
5 kV
5 kV
≥ 5 MOhm
≥ 5 MOhm
Class 1
Class 0
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