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Environmental Conditions
1.Ambient temperature: -40℃~+40℃;
2.Altitude: ≤1000m;
3.Maximum wind speed is 10km/h, minimum wind speed for the rated level (132/230kv) is
3.2km/h;
4.Earthquake intensity: ≤8 level;
5.Minimum nominal creepage distance: 31mm/kV;
6.Air pollution degree: Class IV.
Main Technical Parameters
No | Item | Unit | Value | ||
1 | Rated voltage | kV | 40.5 | ||
2 | Rated insulation level | 1min power frequency Dry test (fracture, inter-phase, to earth) Wet test (to earth, external insulation) | kV | 95
85 | |
Lightning impulse withstand voltage (peak) | 185 | ||||
3 | Rated current | A | 1250, 1600, 2000, 2500 | ||
4 | Rated short circuit breaking current | kA | 20, 25, 31.5 | ||
5 | Rated short circuit making current (peak) | kA | 50, 63, 80 | ||
6 | Rated peak withstand current | kA | 50, 63, 80 | ||
7 | Rated short time withstand current | kA | 20, 25, 31.5 | ||
8 | Rated operating sequence |
| O-0.3S-CO-1 80S-CO | ||
9 | Rated short circuit breaking current breaking number | times | 20 | ||
10 | Mechanical life | times | 10000 | ||
11 | Circuit breaker net weight | kg | 800 | ||
12 | Average opening speed | m/s | 1.4~1.7 | ||
13 | Average closing speed | m/s | 0.4~0.7 | ||
14 | Closing time | ms | 50≤t≤200 | ||
15 | Opening time | ms | 30≤t≤60 | ||
General Structure Drawing and Installation Size (unit: mm)


♦ Establishment --- year 2000.
♦ Location ---- Xinguang Industrial Zone, Yueqing, Zhejiang Province, China, enjoys convenient transportation.
♦ Scale --- 28,000 m², construction area 40,000 m², integrates R&D, manufacture, sale and service, also has production base in Shanghai.
♦ Products --- HV & LV electrical products, including Switchgear, VCB, LBS, Vacuum Interrupter, Electrical Parts, etc.
♦ Corporate purpose --- technology makes development, quality makes survival, reputation makes friends.
♦ Business Philosophy --- integrity, practicality, innovation and efficiency.

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