Complaint
ZW32-24 outdoor AC high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is rated voltage of 24kV, 50Hz three-phase AC outdoor power distribution equipment. It is mainly used to open and close the load current, overload current and short circuit current in the power system. Overload current and short-circuit current. Suitable for substations and industrial and mining enterprises in the distribution system for protection and control purposes, more It is suitable for the rural grid and the place of frequent operation.
Structure schematic
Main technical parameters of circuit breaker
S/N | Item | Unit | Value |
1 | Rated voltage | kV | 12 |
2 | Rated frequency | Hz | 50 |
3 | Rated current | A | 630,1250 |
4 | Rated short circuit breaking current | kA | 20,25,31.5 |
5 | Rated peak withstand current(peak) | kA | 50 |
6 | Rated short time withstand current | kA | 20,25,31.5 |
7 | Rated short circuit making current(peak) | kA | 50 |
8 | Mechanical life | Time | 10000 |
9 | Breaking times of rated short circuit breaking current | Time | 30 |
10 | Rated operating sequence | opening-0.3s-closing opening-180s-closing opening | |
11 | power frequency withstand voltage(1min):(wet)(dry)interphase,ground/fracture | kV | 34/42/48 |
12 | Lightning impulse withstand current(peak) interphase, ground/fracture | kV | 75/85 |
13 | Secondary circuit 1 min power frequency withstand voltage | kV | 2 |
Normal use conditions
1. Altitude 1000m;
2. The ambient air temperature is 45°C~+65°C; the daily temperature difference is 25°C;
3. The wind speed is not greater than 35m/s;
4. The earthquake intensity does not exceed 8 degrees;
5. Pollution level: Level IV;
6. Installation place: No flammable, dry explosion hazard, chemical corrosion place.
Application
Order instructions
When ordering, please specify the product type, name, quantity, rated current, rated short-circuit breaking current, current ratio of the current transformer, operation mode and operating voltage, etc.
