ZN23 40.5Kv Acb Circuit Breaker Three Phase Power Transmission
1. ZN23-40.5KV series ACB circuit breaker
ZN23-40.5 Acb Circuit Breaker is 40.5 KV rated voltage, three-phase ac 50 hz indoor high voltage electrical equipment, applicable to industrial and mining enterprises, power transmission and distribution system such as substation, control and protection switch, especially in metallurgy, electric arc need frequent operation such as refining the steel industry, as the control and protection equipment
2. Parameter of ZN23-40.5KV series ACB circuit breaker
| NO | Item | Units | Technical parameters |
| 1 | Rated voltage | kV | 40.5 |
| 2 | Thunder impulse withstand voltage(peak value) | kV | 185 |
| 3 | lmin industrial frequency withstand voltage | kV | 95 |
| 4 | Rated frequency | Hz | 50 |
| 5 | Rated current | A | 1250,1600,2000 |
| 6 | Rated short-circuit break current | kA | 25 | 31.5 |
| 7 | Rated peak value withstand current | kA | 25 | 31.5 |
| 8 | Rated peak value withstand current | KA | 63 | 80 |
| 9 | Rated short-circuit duration time | s | 4 |
| 10 | Rated short circuit breaking time | ms | |
| 11 | Rated short circuit closing current | kA | 80 |
| 12 | Rated operation order | | 0-0.3s-C0-180s-C0 |
| 13 | Time of closing brake | ms | 50~85 |
| 14 | Time of breaking brake | ms | 40~85 |
| 15 | Rated short-circuit current break and close times | Times | 20 |
| 16 | Mechanical life-span | Times | 10000 |
| 17 | Rated dropout current of condenser bank | A | 630 |
| 18 | Rated power of energy-storage electric machine | W | 275 |
| 19 | Rated volt of energy-storage motor | V | 25 ± 2 |
| 20 | Storage time | S | ≤15 |
| 21 | Closing and opening solenoid rated voltage | V | ≈220,110 |
| 22 | Loss of pressure tripping device rated voltage | V | ≈220,110 |
| 23 | Over current tripping device rated current | A | 5 |
| 24 | Auxiliary switch rated voltage current | A | DC10 |
3. Working application
Amplitude: earthquake intensity does not exceed 8 °,
Air relative humidity on average less than 95%, on average less than 90%
An ambient air temperature: to +40 °C, the lower limit of -150°C,
Altitude:. ≤ 1000m (For higher altitudes, the rated insulation board level relative increase)
No risk of fire, explosion, serious pollution, chemical corrosion and severe vibration.
4. Technical drawings
5. Factory
6. Delivery
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ZN23 40.5Kv Acb Circuit Breaker Three Phase Power Transmission Images
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