Programmed control complete set of equipment realizes the electrical five-prevention interlocking logic through the secondary measurement, control and protection device, and cooperates with primary switchgear such as circuit breakers, disconnectors and grounding switches that can be electrically operated. Through the pre-set programmed operation sequence, the automatic switching operations of working, overhauling and cold standby and other working states are completed, which overcomes the inconvenience caused by traditional manual mechanical operations, and at the same time avoids the occurrence of equipment, line and personal safety accidents caused by possible misoperations.

BS6-12 series SF6 fully insulated ring main unit is applicable to the power distribution device with three-phase AC 50/60Hz and rated voltage of 7-40.5kV. SF6 gas is used as the breaking and insulation medium, and the gas insulation unit is not affected by the environment, such as humidity, dust and corrosive gases, to ensure the safety of operators to the greatest extent.

KYN28 series armored removable AC metal switchgear (hereinafter referred to as the switch cabinet) is applicable to the complete set of power distribution devices of three-phase AC 50Hz, 3.6~12kV single-bus section system, and is used to accept and distribute network power, and to control, protect and monitor the circuit, and is widely used in power, metallurgy, petrochemical, urban construction and other industries. This switch cabinet meets the relevant requirements of standards such as IEC298, GB3906, DL/T404, and has a perfect “five-prevention” function. This switch cabinet can be configured with circuit breakers such as VD4, 3AH, EV12, VB2, VS(ZN63A), VDS(ZN63C), ZN18(VK).

HXGN-12(ZF/ZFR), box-type fixed fully enclosed switchgear. Vacuum load switch equipment with three-phase AC 50Hz and rated voltage of 12kV, applicable to the ring network power supply of the 10kV system.

XGN15-12 series, AC metal ring network switchgear, uses sulfur hexafluoride switch as the main switch. The whole cabinet adopts air insulation and is suitable for power distribution automation, which is a compact and expandable metal enclosed switchgear.

Install a user demarcation switch. After judgment and confirmation that an accident (such as overcurrent, short circuit, small current grounding and other accidents) occurs, the fault will be isolated to ensure the restoration of power supply to non-fault users, which can reduce the power outage area and solve the responsibility dispute problem between users and the power supply bureau.