Customization: | Available |
---|---|
Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Electric Type |
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No. | Item | Unit | Data | |||
1 | Rated voltage | kV | 12/24 | 40.5 | ||
2 | Rated current | A | 630,1250 | |||
3 | Rated power frequency | Hz | 50/60 | |||
4 | Rated peak withstand current | kA | 50,63 | |||
5 | Rated short-time withstand current | kA | 20,25 | |||
6 | Rated short-circuit duration | s | 4 | |||
7 | Rated active load breaking current | A | 630,1250 | |||
8 | Rated loop breaking current | A | 630,1250 | |||
9 | Rated cable charging current | A | 10 | |||
10 | 5%rated active load breaking current | A | 31.5,63 | |||
11 | Rated power transformer breaking current | kVA | 1250 | |||
12 | Rated short-circuit making current | kA | 50,63 | |||
13 | Main loop resistance | μΩ | ≤90 | ≤100 | ||
14 | 1min.powerfrequency withstandvoltage |
Dry | phasetophase phasetoearth | kV | 42/50 | 95 |
acrossopen contacts | kV | 49/60 | 115 | |||
Wet | phasetophase phasetoearth | kV | 30/40 | 85 | ||
15 | Lightning impulse withstand voltage(peak) |
phasetophase phasetoearth | kV | 75/125 | 185 | |
acrossopen contacts | kV | 85/145 | 215 | |||
16 | Mechanical life | Times | 10000 | 10000 | ||
17 | Three phase closing asynchronous | ms | ≤5 | ≤5 | ||
18 | Direction rotating of making contact blade | mm | ≤2 | ≤2 | ||
19 | Main contact blade pressure | N | 300±30 | 420±42 | ||
20 | Distance between charged body and phase to earth | mm | ≥200 | ≥380 | ||
21 | Rated operating moment | Nm | ≤300 | ≤300 |