Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Energy-storage Type |
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This series vacuum circuit breakers are three-phase AC 50Hz indoor high-voltage switchgear with rated voltage of 12kV-40.5kV.
The operating mechanism of the circuit breaker is spring energy storage type, which can be operated by AC or DC or manually.
The circuit breaker has a simple structure, strong breaking capacity, long service life, complete operating functions, no danger of explosion and simple maintenance. It is suitable for power control or protection switching transmission and distribution systems, such as power plants, substations and industrial and mining enterprises, and is especially suitable for important loads and places of frequent operation.
The installation form of circuit breaker in the switch cabinet can be fixed or handcart type.
This product conforms to GB1984, JB3855, IEC62271-100 and other related standards.
No. | Item | Unit | Data |
1 | Rated voltage | kV | 24 |
2 | Rated Current | A | 630/1250/1600/2000/2500/3150 |
3 | Rated Frequency | Hz | 50/60 |
4 | Rated short circuit current | kA | 20/25/31.5/40 |
5 | Rated short time withstand current(4s) | kA | 20/25/31.5/40 |
6 | Rated peak withstand current | kA | 50/63/80/100 |
7 | Rated power frequency withstand voltage | kV | 65 (fracture 79) |
8 | Rated lightning impluse withstand voltage | kV | 125(fracture 145) |
9 | Rated operating sequence | O-0.3S-C&O-180S-C&O | |
10 | Mechanical life endurance | time | 10000 |
11 | Rated short circuit opening current frequancy | time | 50 |
12 | Rated voltage of operating mechanism(DC) | V | 110/220 |
13 | Open contact clerance | mm | 11+1 |
14 | Super stroke | mm | 3.5+0.5 |
15 | Time differential among phases | ms | ≤2 |
16 | Bounce time of closing contacts | ms | ≤2 |
17 | Average opening speed | ms | 1.5+0.2 |
18 | Average closing speed | ms | 0.8+0.2 |
19 | Opening time | ms | ≤50 |
20 | Closing time | ms | ≤100 |
1. Altitude:≤1000 m; (Altitude of prototype can reach below 4000 meters)
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