Description:
The VCB in the GIS cabinet is a high-voltage circuit breaker used to protect equipment and personnel in the power system from the effects of power system overload, short circuits, and ground faults. This device is suitable for power transmission and distribution systems ranging from 10 kV to 35 kV, and has the advantages of reliable short circuit protection, fast closing speed, and convenient operation. Its main components include mechanisms, electrical components, control circuits, etc. This de...YFV- 24KV- 800A Circuit Breaker has the advantages of easy installation, lttle maintenance, long life, small size, low price, safety and reliability. This product meets technical requirements of GB1984- -89, GB/T1984- -2003 "AC high voltage circuit breaker". Major loop: 800A- -20KA(4s)、25KA(3s), Mechanical life: 10000 times. Ground loop: 20KA(2s), Mechanical life: 20000 times.
Product definition
Working condition
O Alitude is not more than 1000m, earthquake intensity is not more than 8 degrees. O Pollution resistance level: II. O Ambient temperature: -40C ~+140C . relative humidity daily average≤90%, monthly average≤90%. O Frequently vibrating installation sites, places with water vapor, gas, chemical corrosive deposits, salt spray, dust and dirt, and fires, that significantly affect the performance of the Mechanism and places with fire or explosion hazards are not suitable.
Drawing
No. | ltem | Unit | Data |
1 | Rated frequency | Hz | 50 |
2 | Rated current | A | 800 |
3 | Rated short time withstand current | KA | 20/25 |
4 | Rated peak withstand current | KA | 50 |
5 | Rated short circuit duration | S | 4 |
6 | Rated short circuit closing current | KA | 50 |
7 | Rated operation sequence | O-0.3s-180s-CO | |
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