HKA 20кВ / 24кВ Металл-одетый коммутационная корпуса

HKA-24 Metal-clad Enclosure Switchgear with Withdrawable VCB or SF6 Breaker Product overview HKA-24 Metal-clad Enclosure Switchgear is advanced high-voltage switchgear that Beijing Huadong Electric Co., Ltd has independently worked out and developed. It applies to the electric power system of 3 phase AC 50Hz. It is mainly used to receive, distribute the electric energy as well as control, protect and monitor the circuit. HKA-24 Switchgear boasts various ways to prevent misoperation, including preventions on movable truck and earthing switch under load operaion, on the closing of earthing switch at the closing position of breaker. HKA-24 Switchgear is equipped with withdrawable VD4, VH4 or SF6 breakers of high performance. The secondary loop of the switchgear is fixed with advanced and reliable protective components.HKA-24 Switchgear is a power distribution equipment, combining high technology, stable performance and reasonable structure. It is easy to use, safe and reliable.Introduction of Standard and Criterion: HKA-24 Switchgear is designed and made according to the following standards: International Electrotechnical Commission Standard. IEC62271-200 rated voltage (more than 1KV and less than 52KV) AC metallic enclosure switchgear and control equipment. IEC60694:2002 common technical requirment for high-voltage switchgear and control equipment. IEC62271-100:2001 high-voltage switchgear and control equipment-the 100th section:high-voltage AC breaker.HKA-24 Switchgear Delivery Test Standard As stipulated in the international criterion. HKA-24 Switchgear has experienced a regular test on its model. Besides, we have conducted a delivery test on each unit according to the items regulated in IEC62271-200 and provided ' Delivery Test Report' on our products.Technical parameter Item Unit Data Rated Voltage KV 20/24 Rated Frequency Hz 50 Rated Insulation Level Power Frequency Withstanding Voltage (1 min) KV 50 Lightning Impulse withstanding Voltage 125 Main Busbar Rated Current A 630,1250,1600,2000 Branch Busbar Rated Current A 630,1250,1600,2000 3s Heat Steady Current (Virtual value) KA 16,20,25 Rated dynamic Steady Current (peak value)* 40,50,63 Degrees of Protection IP4X is for enclosure. The protection degree between every compartment is IP2X. It is also IP2X when the door of the breaker room is open