Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Manual Type |
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No. | Item | Unit | Data | |
1 | Rated frequency | Hz | 50 | |
2 | Rated voltage | kV | 12 | |
3 | Rated current | A | 630/1250 | |
4 | Rated short-time power frequency withstand voltage | Interphase, to earth(wet) | kV/min | 42/1 |
Interphase, to earth(dry) | 48/1 | |||
Break(dry) | 34/1 | |||
Secondary circuit to earth | 2/1 | |||
5 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 |
Break | 85 | |||
6 | Rated short-circuit breaking current | kA | 20/25 | |
7 | Rated short-circuit making current(peak) | 50/63 | ||
8 | Rated short-time withstand current and duration | kA/s | (20/25)/4 | |
9 | Rated peak withstand current | kA | 50/63 | |
10 | Rated short-circuit breaking current breaking times | Times | 30 | |
11 | Rated operating voltage and rated voltage of the auxiliary circuit | V | AC/DC220,DC48,DC24 | |
12 | Main circuit resistance | Without isolation | μΩ | ≤80 |
With isolation | ≤120 | |||
13 | Mechanical life | Times | 10000 | |
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |
High-voltage metering main technical data | ||||
No. | Item | Unit | Data | |
1 | Rated frequency | Hz | 50 | |
2 | (cosΦ)Power factor | 0.8(lag) | ||
3 | Rated primary voltage | 3-phase 3-wire system | kV | 10 |
3-phase 4-wire system | 10/√3 | |||
4 | Rated secondary voltage | 3-phase 3-wire system | 0.1/0.22 | |
3-phase 4-wire system | (0.1/√3)/0.22 | |||
5 | PT wiring method | 3-phase 3-wire system | V-V | |
3-phase 4-wire system | Y-Y | |||
6 | Rated primary current | A | 5~600 | |
7 | Rated secondary current | 5 | ||
8 | PT accuracy class | 0.2/3 | ||
9 | CT accuracy class | 0.2S | ||
10 | PT rated output | VA | 15/200 | |
11 | PT ultimate output | 500(class3) | ||
12 | CT rated output | 10 | ||
13 | Polarity | Subtractive polarity | ||
14 | Rated short-time power frequency withstand voltage | kV/min | 42/1 | |
15 | Rated lightning impulse withstand voltage | kV | 75 |