Timetric electrical is a large-scale 24 Kv Pole Mounted Vacuum Circuit Breaker manufacturer and supplier in China. We have been specialized in High voltage equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We look forward to becoming your long-term partner in China.
24 Kv Pole Mounted Vacuum Circuit Breaker With the continuous development of China's economy, the structure and load characteristics of power grid are increasingly complex. In order to protect equipment and personal safety, higher requirements are put forward for the safety and reliability of power supply. Before July 2016, the most common circuit safety device was the circuit breaker. It is a kind of manual switch function, and can automatically carry out voltage loss, undervoltage, overload and short circuit protection of electrical appliances. When the device occurs serious overload or short circuit and undervoltage fault can automatically cut off the circuit. Outdoor high-voltage vacuum circuit breakers are exposed outdoors for a long time. In rainy seasons, moisture in the air is easy to enter the circuit breaker and slowly accumulate, forming water droplets, short-circuited the circuit breaker, and affecting the normal operation and service life of the circuit breaker.
Item |
Unit |
Parameter |
||||
Rated Voltage |
KV |
12 |
||||
Rated Insulation Level |
1 Min power frequency witstand Voltage |
Dry test |
42 |
|||
Wet Test |
34 |
|||||
Lighting impulse withstand voltage(peak) |
75 |
|||||
Rated Current |
A |
630 |
400 |
200 |
||
Rated short-circuit breaking current |
KA |
20 |
16 |
12.5 |
||
Rated opertaing sequence |
|
O-0.3s-CO-180s-CO |
||||
Rated short-circuit breaking current time |
Times |
30 |
||||
Rated short-circuit closed current(peak) |
KA
|
50 |
||||
Rated peak withstand current |
50 |
|||||
Rated short-time withstand current |
20 |
|||||
Rated short-circuit duration |
s |
4 |
||||
opening time (magnetic releasing) |
Max operating voltage |
ms |
23~45 |
|||
Rated operating voltage |
23~60 |
|||||
Min operating voltage |
25~45 |
|||||
close time |
ms |
≤100 |
||||
total break time |
≤20 |
|||||
Mechanism life |
Times |
1000 |
||||
rated input power of Storage energy motor |
Times |
40 |
1. An outdoor high-voltage vacuum circuit breaker, including the circuit breaker body, the bottom of the circuit breaker body is provided with a placing cavity, the placing cavity and the circuit breaker body internal communication, isolation cavity and the outer structure of the placing cavity is integral, its characteristics are: The placing chamber is provided with a vacuum pump, the vacuum pump is provided with an isolation wire fence above the isolation wire fence is provided with a humidity sensor, the humidity sensor side is provided with a pressure sensor, the humidity sensor and the pressure sensor is provided with an electromagnetic shielding cover, the vacuum pump is provided with an isolation cavity, the isolation cavity is provided with a fixed plate inside, A gland is arranged below the isolating cavity.
2. According to the outdoor high-voltage vacuum circuit breaker mentioned in Claim 1, its characteristics lie in that the inside of the gland is provided with a sealing pad.
3. The outdoor high-voltage vacuum circuit breaker mentioned in Claim 1 is characterized by an internal pull spring between the gland and the fixed plate inside the isolation cavity.
4. According to the outdoor high-voltage vacuum circuit breaker mentioned in Claim 1, its characteristics lie in that the placing chamber is connected to the bottom of the circuit breaker body through a fastener, and the inner structure of the isolating cavity and the placing chamber is provided with an isolating breathable plate.