LW□-12 type primary and secondary completeset SF6 column mounted circuit breaker
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Product Description
- 产品描述
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Overview
● According to the requirements of the State Grid's primary and secondary fusion complete set, SF6 arc extinguishing and SF6 insulation are used. Adopting a circuitbreaker and operating mechanism. integrated structure, with built-in protection CT,zero sequence CT,and zero sequence voltage sensor, it has the characteristics of wide measurement range,high measurement accuracy, and high reliability, making it easy for the complete set of primary and secondary fusion devices to accurately determine various faults in the circuit.
● Suitable for feeders, contact points, sectioning points, branches, or user boundary points of 10kV overhead distribution lines.
● The product meets the following standards:GB/T 11022-2011,IEC 62271-1:2007,GB/T 1984-2014,IEC62271-100:2008,DL/T593-2006IEC,IEC60694:2002
Product Features
● Support four remote functions: can be matched with the controller to achieve remote control, telemetry, remote signaling, and remote adjustment functions.
● Flexible and convenient operation: usingelectric energy storage, electric opening and closing, and supporting manual operation functions.
● High reliability: built-in protection CT, zero sequence CT, and zero sequence voltage sensor, wide measurement range, high measurement accuracy, and strong reliability
● Excellent breaking performance: the breaking short-circuit current can reach 20kA for up to 30 times.
● Reliable sealing performance: SF6 has a "zero" gauge pressure and adopts mature sealing structure technology, ensuring reliable sealing performance and preventing leakage.Safety of use: Explosion proof devices are installed on the box, so that even if there is an internal fault, there will be no leakage of high-temperature gas or splashes.
● High protection level: three-phase common box type, with a protection level of P67. Complete set of primary and secondary fusion: The switch configuration fullymeets the requirements of the State Grid for complete set of primary and secondary fusion, facilitating unified procurement and mass production by the State Grid.
Main technical parameters
Project Parameter Rated voltage (KV) 12 Rated frequency (H z) 50/60 Rated current (A) 630 Rated insulation level 1min power frequency withstand voltage (effective value) (kV) Phase to phase, phase to ground Fracture 42 48 Lightning impulse withstand voltage (peak) (kV) 75 85 Rated circuit breaker breaking current (kA) 20 Rated short-circuit making current (peak) (KA) 50 Rated short time withstand current (4S, effective value) (kA) 20 Rated peak withstand current (kA) 50 Number of mechanical life cycles 10000 Protection level IP67
Product Inquiry
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