Load switches are used for mechanical disconnection of electric power consumer circuits from power supply devices and power transformers. They are used on all types of transformer substations.The repair of load switches is a separate service, but we can also perform these works as part of the reconstruction of transformer substations and repair of power transformers.The main stages of repairing load switches are:General inspection of circuit breakers General inspection of load switches should be carried out according to the recommendations of the manufacturer, the current regulations of the organization that operates the power plant or transformer substation, but at least once a year.During this procedure, the load switch is disconnected from the current-carrying buses and disassembled.The fastening of the arc extinguishing device is loosened, the arc extinguishing chamber itself is disassembled. In the arc-extinguishing chamber, the condition of the housing, plates and partitions and liners is checked.Externally inspect the condition of rubber parts (washers, seals), springs, as well as porcelain insulators, if any.Special attention is paid to the condition of movable and stationary contacts. The working surfaces of the contacts must be free from corrosion, carbon deposits, irregularities and meltdowns by at least three quarters. Contact pairs should fit tightly into each other and should not have deformations. Contact backlash and even minor distortions are not allowed, such parts must be replaced.Inspection of composite parts If during the general inspection some parts have signs of wear, or simply cause suspicion, their detailed inspection is carried out. This is especially true for springs and adjustable load switch mechanisms. Replacement of damaged, melted parts Damaged and burnt out parts, liners, rubber washers and seals, as well as springs that do not meet their specified characteristics are replaced.Cleaning of contact surfaces Contact surfaces are cleaned of traces of melting, carbon deposits, oxidation. The moving parts of the switch are cleaned of the remnants of old grease. Adjustment and lubrication of the moving parts of the switch A new lubricant corresponding to the ambient temperature and operating conditions is applied to the rubbing and moving parts of the switch. When adjusting, the adjuster strives to achieve simultaneous input and output of movable contacts. I can give you a way to earn money, you log on to the site https://casino-in.gr and make money easy and fast just by playing games.
