CHINA FACTORY VACUUM CIRCUIT BREAKER SERIES ZN85B-40.5,ZN85B. RATED VOLTAGE - 40.5 KV, RATED NORMAL CURRENT -1250A, RATED FREQUENCY-50 HZ, SUITABLE FOR POWER PLANTS, SUBSTATIONS AND OTHER INDUSTRIAL AND MINING ENTERPRISES

Product name : CHINA FACTORY VACUUM CIRCUIT BREAKER SERIES ZN85B-40.5,ZN85B. RATED VOLTAGE - 40.5 KV, RATED NORMAL CURRENT -1250A, RATED FREQUENCY-50 HZ, SUITABLE FOR POWER PLANTS, SUBSTATIONS AND OTHER INDUSTRIAL AND MINING ENTERPRISES

Product No. : 2023722195751

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Brief introduction

ZN85B-40.5 series vacuum circuit breaker ZN85B-40.5 series indoor high voltage AC vacuum circuit breaker is an indoor high voltage switchgear with a rated voltage of 40.5 kV and a three-phase AC of 50Hz.It is suitable for power plants, substations and other industrial and mining enterprises. As a control and protection equipment, it has superior performance and can operate frequently within the rated current range and break the short-circuit current multiple times.It is especially suitable for breaking important loads and some places that require frequent operation.

Use

ZN85B-40.5 series indoor high voltage AC vacuum circuit breaker is an indoor high voltage switchgear with a rated voltage of 40.5 kV and a three-phase AC of 50Hz.It is suitable for power plants, substations and other industrial and mining enterprises. As a control and protection equipment, it has superior performance and can operate frequently within the rated current range and break the short-circuit current multiple times.It is especially suitable for breaking important loads and some places that require frequent operation.

Structure and characteristics

The circuit breaker adopts the overall arrangement structure of the mechanism in the front arc extinguishing chamber in the rear, which is conducive to debugging.The composite insulation structure of air and organic materials is adopted, the design is compact, the weight is light, the protection action is consistent, and the technical parameters can be maintained after long-term use.

The vacuum arc extinguishing chambers are installed in three-phase independent insulating chambers to protect the arc extinguishing chambers from external influences and mechanical damage.

The operating mechanism adopts an independently developed straightening mechanism, which reduces the power consumption of closing, not only maintains the reliable operation, but also reduces the vibration amplitude of the circuit breaker.The operating mechanism matches the characteristics of the arc extinguishing chamber well, and has extremely superior breaking performance, and the short circuit is broken 20 times at a time.

The circuit breaker has two installation methods, hand-car type and fixed type, which are not only easy to load into the KYN85A40.5 switchgear, but also can be installed independently in a fixed capacity to match the needs of other switchgear.The circuit breaker handle adopts a full-wheel driving lever propulsion mechanism, which is labor-saving, stable, and has good self-locking performance.

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