Sales of high-quality JN15-12 grounding switch

JN15-12 / 31.5 JN15-12 inside / 31.5-210 JN15-12 / 31.5 indoor high voltage grounding switch (JN15 grounding switch) is my company based on market needs design and development of new grounding switch, suitable for indoor 3 ~ 12KV three-phase AC within 50 (60) Hz power systems and models supporting the use of high voltage switchgear, can also be used as a ground voltage electrical equipment maintenance. The grounding switch structure is simple and compact, light weight, flexible operation, easy installation, dynamic thermal stability, is ideal JN4-10 grounding switch replacement. ◆ Environmental conditions 1, applies to the following environmental conditions 2.1.1 not more than 1000 meters above sea level; 2.1.2 ambient temperature is not higher than + 40 ℃, not lower than -10 ℃; 2.1.3 daily average relative humidity less than 95% , the monthly average of less than 90%; 2.1.4 earthquake intensity does not exceed 8 degrees. 2, does not apply to the following places 2.2.1 installation sites have a serious impact on grounding switch insulation and conductivity of gas, steam, chemical precipitation, smoke, dust, dirt and erosion of their explosive substance; 2.2.2 installation site has frequent violent shock. 3, the structure and working principle 1, the main structure of the grounding switch with a bracket, grounding knife assembly, static contact, sensors, shafts, crank arm, spring, conductive sleeve, soft connection components. NOTE: After the bracket is formed by bending a thin steel plate welded into parts, the rest are assembled components. 2, the working principle When operating actuator closing the grounding switch, as the spindle torque to overcome the drag torque, drive crank arm along the closing direction of rotation, and stick a knife on the ground dead by spring, spring release energy, fast closing the grounding switch in the closing position. Ground knife blade assembly on the ground firmly and securely by contacting the stationary contact disc spring and the flange portion (edge). When opening operation, the role of torque to overcome the main spindle and the spring force moment, driven crank arm to rotate in the direction of opening, and ground knife spring dead spot by the end of spring energy storage, in order to prepare for the next closing. Earthing switch and closing speed independent of the speed of human action.