| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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SF6 circuit breaker, High voltage SF6 circuit breaker is a three-phase AC 50Hz outdoor high voltage electrical equipment, suitable for the control and protection of 40.5kV transmission and distribution system, and can also be used as a liaison circuit breaker and opening and closing capacitor bank occasions.
The altitude does not exceed 2,500 meters;
Plateau type does not exceed 4000 meters above sea level; Trayde high voltage appliance
Ambient temperature *** temperature does not exceed +40 degrees, *** temperature is not lower than -30 degrees.
Relative air humidity: the daily average is not more than 95%, the monthly average is not more than 90% (25ºC);
Wind speed is not more than 35 m/s;
The anti-pollution level is level II;
| Name | Unit | Data | ||||
| Rated voltage | kV | 40.5 | ||||
| voltage | kV | 40.5 | ||||
| Rated insulation level | lightning impulse withstand voltage (Full wave crest) | kV | 200*/215(open contact) Note: Standardized 185KV | |||
| power frequency withstand voltage(1min) | kV | 95/118(open contact) | ||||
| Rated current | A | 1600/2000 | 1600/2000/2500/3150 | |||
| Mechanism life | Times | 5000 | ||||
| SF6 gas rated pressure (gauge pressure at 20°C) | MPa | 0.40 | 0.50 | |||
| Blocking pressure(gauge pressure at 20°C) | MPa | 0.3 | 0.40 | |||
| Operating ambient temperature | ºC | -40 | -30 | |||
| Rated short-circuit breaking curren | kV | 20 | 25 | 25 | 31.5 | |
| Rated short-circuit closed current(peak) | kV | 50 | 63 | 63 | 80 | |
| Rated short-time withstand current(Thermally stable current) | kV | 20 | 25 | 25 | 31.5 | |
| Rated peak withstand current(Dynamic stable current) | kV | 50 | 63 | 63 | 80 | |
| Rated out-of-step breaking current | kV | 5 | 6.3 | 6.3 | 8 | |
| The total number of times that the rated short circuit breaks the current | Times | 20 | ||||
| Rated short-circuit duration | 4 | |||||
| Closing time (at rated operating voltage) | ≤0.1 | |||||
| Opening time (at rated operating voltage) | ≤0.06 | |||||
| Rated operating sequence | O-03s-OC-180s-OC | |||||
| Rated current for opening and closing individual capacitor banks | A | 400 | ||||
| Annual leakage rate of gas | %/year | ≤1 | ||||
| SF6 gas moisture content (at 20C) | UL/L | ≤150 | ||||
| Rated operating voltage of CT14 type spring operating mechanism | AC/DC:380/220V/110V | |||||
| Voltage of closing coil and opening coil | V | AC:220 380 DC:48 110 220 |
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| Energy storage motor voltage | V | AC:220 DC:220/110 |
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| SF6 gas weight | kg | 5 | ||||
| Machine weight | kg | 1000 | ||||
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