ZN85-40.5 3 Phase 33kv 35kv 40.5kv Vacuum Circuit Breaker VCB
1. ZN85-40.5 series 3 Phase 33kv 35kv 40.5kv indoor high voltage vacuum circuit breaker vcb
ZN85-40.5 type indoor high voltage vacuum circuit breaker is suitable for three-phase AC 50Hz, rated voltage 40.5kV power system, can be used for industrial and mining enterprises, power plant and substation as opening and closing load current, overload current, fault current use.
Circuit breaker and operating mechanism adapt the upper and lower arrangement of institutions, effectively reducing the circuit breaker depth.
2. Parameter Data
| No. | Item | Unit | Date | ||
| 1 | Rated voltage | kV | 40.5 | ||
| 2 | 1 min power frequency withstand voltage | kV | 95 | ||
| 3 | Lightning impulse withstand voltage | kV | 185 | ||
| 4 | Rated frequency | Hz | 50 | ||
| 5 | Rated current | A | 1250,1600,2000 | ||
| 6 | Rated short time withstand current | kA | 25,31.5 | ||
| 7 | Rated peak withstand current | kA | 63,80 | ||
| 8 | Rated short duration current | s | 4 | ||
| 9 | Rated short-circuit breaking current | kA | 25,31.5 | ||
| 10 | Rated short-citcuit closing current | kA | 63,80 | ||
| 11 | Rated sequence of operations | 0-0.3s-CO-180S-CO | |||
| 12 | Rated short-circuit breaking current breaking time | time | 20 | ||
| 13 | Single capacitor bank breaking current | A | 630 | ||
| 14 | Back to back capacitor bank breaking current | A | 400 | ||
| 15 | Rated operating voltage | V | -100/~110, -220/~220 | ||
| 16 | Mechanical life | time | 1000 |
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3. Application
height above sea level:≤1000m
Ambient temperature:-15~+40ºC.
Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%.
It should be installed in the places without fire,explosion,serious filth, chemical erosion and violent vibration.
Saturated vapor pressure:the average pressure of a day should be no more than 2.2kPa:the average pressure of a month should be no more than 1.8kPa.
Earthquake intensity:not exceed 8 degrees.
4. Photo and drawing
5. Factory
6. Delivery
7. FAQ
1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.
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