Products GN19-12 indoor high voltage isolation switch for rated voltage 10KV, AC 50Hz and below power system, equipped with CS6-1-type human operating mechanism, as there is voltage in the case of no load, open, close electric circuits also produce pollution, Plateau and install live display devices. Rated voltage: 10KV Rated current: 400A, 630A, 1000A, 1250A Installation size: 700X 240 Mechanical life: ≥ 2000 times static tension (N): Fa = 500NFb2 = 170N operating torque: 200Nm voltage isolation switch overhaul (a) the disintegration of This is the form of maintenance overhaul. Is the equipment in full overhaul, overhaul inspection of the components of the wearing parts replacement or repair process, such as a conductive portion of the contact fingers, springs standard maintenance, there are circumstances or heavier ablation should be replaced ; the disintegration of the rotating part of the bearing cleaning, measuring, testing, to ensure their flexible movement; the stopper, stopper unit check test, the role of loss of function member to be replaced; the internal transmission mechanism for cleaning, inspection; for each connecting rod drive shaft pin hole configuration to clean, polish, oiling; strength of the base frame, the strength of tradition weld inspection; pair of insulated bottle (column) for surface cleaning, inspection and insulated bottle against breaking down metal sintered at check and so on. These focus on the process of repair of the equipment shall be in accordance with the technical process guidelines or regulations technical requirements for implementation of the factory, and strive to restore the original equipment after maintenance level technical capabilities. (Two) This is a general maintenance routine minor repairs or temporary repair form. Usually an overhaul to adhere dynamic management, insisted that compulsory repair, maintenance required good principles, failure of equipment defects arrangements targeted maintenance. In addition to the repair process for recovery of repair of defective parts, we must also do in a certain range of general maintenance overhaul. Such as: insulation pillar and base frame strength check, cleaning; conductive loop contacts, finger, spring for process testing and maintenance; work on the drive rod pin, shaft, hole cleaning, oiling; drive the organization, turning assembly and mechanical interlock, limit, locking function tests; same period of the three-phase, opening distance, division and place with the conductive loop resistance measurement and regulation; pair wire assembly, fixing and electrical connection requirements for check measurements. Product Attributes pressure isolation switch blade Common Failures and Heating analysis: ① failure caused by operation of part is not in place, co-disconnector lax. Treatment: When the load is not more convenient to use when the operating rod available at the operating lever (quite voltage level) to adjust the knife together Yan, repair agency. ② load up faster than equipment allowed. Treatment: Immediately seek to reduce the load, such as notifying the user limit load or pull some branch lines, there should be at before taking measures to strengthen surveillance; switching bus, transferring load, the knife out of operation; temporarily take short wiring (connecting line); single bus connection, it should reduce the load and to strengthen surveillance, such as conditions permit should be possible to stop using. ③ contact portions burns, rust, wear and poor contact; running contact fingers, spring corrosion, overheating, elasticity decreases, the compression spring or screw loose, lax blade together; finger contact surface oxidation, the contact resistance increases. Treatment: Repair or replace the contact fingers. 2, porcelain trauma, Mishap, dirt, burns, explosions traces Analysis: porcelain itself trauma, bruising and other defects, coupled with serious dirt or lightning, operation produces over-voltage insulator flashover discharge, severe produce white short circuit, the porcelain explosion breaker. Treatment: no serious traces of discharge, surface cracking, off the glaze, etc., can not be dealt with. Porcelain severe trauma, and ground breakdown, porcelain explosions, etc., should be taken immediately overhaul replacement. 3, isolating switch can not be closed Analysis: axle pin, key block off, cast iron fracture mechanical failure. Treatment: Depending on the cause targeted maintenance treatment. 4, isolating switch can not tripping cause analysis: institutional operation connecting portion rust, welding, etc. contact section cited overheating. Treatment: Depending on the cause targeted maintenance treatment. Other notes Giant Fai Electrical perfect service transactions illustrate the principle of payment and delivery company