Complaint
KYN61-40.5 air-insulated metal-clad withdrawable switchgear (hereinafter as switchgear is a kind of HV switchgear. It is designed as a withdrawable module type panel, and the withdrawable part is fitted with VD4-36E, VD4-36 withdrawable vacuum circuit breaker manufactured by Boerstn Electric Company. It can also be fitted with an isolation truck, PT trucks, fuses trucks, and so on. It is applicable to three-phase AC 50/60 Hz power systems, and mainly. Boston Electric co. design and make this withdrawable switchgear under the standard of IEC62271-200.etc
1. Ambient temperature:-10ºC ~ +40ºC, and measuring average RH within 24 hours ≤35ºC;
2. Altitude: Not exceed 1000m above sea level;
3. Ambient humidity: Daily average RH ≤ 95%; Monthly average RH ≤ 90%
4. Earthquake intensity: ≤ Degree 8
5. Water vapor pressure: Daily average RH ≤ 2.2kPa; Monthly average RH ≤ 1.8kPa;
6. Ambient environment: no fire, explosion danger, serious pollution, chemical corrosion, and severe vibration place
| No. | Item | Unit | Data | |
| 1 | Rated voltage | kV | 40.5 | |
| 2 | Rated current | main bus bar | A | 1600/2500 |
| circuit breaker | A | 166/2500 | ||
| 3 | Rated insulation level | 1min frequency withstand voltage | kV | 95/110 |
| lightning impulse withstand voltage | kV | 185/215 | ||
| frequency withstand voltage auxiliary circuit, control circuit | V/1min | 2000 | ||
| 4 | Rated frequency | Hz | 50 | |
| 5 | Rated short circuit breaking current | kA | 31.5 | |
| 6 | Rated short-time withstand current/Rated short circuit duration | kA/s | 31.5/4s | |
| 7 | Rated withstand current (peak) | kA | 80 | |
| 8 | Rated short circuit making current | kA | 80 | |
| 9 | Rated voltage of control circuit | V | DC:110 220,AC:110 220 | |
| 10 | Protection class | enclosure | IP4X | |
| insulated chamber | IP2X | |||
