Dry-type transformers Capacity

Hotline: 13925508852 Wu-sheng China's production of power transformers, basically only a structure type that core-type transformers, so the windings are concentric structure?. The so-called concentric windings, that is, on either leg of a cross-section of the windings are in the same line of the cylindrical sleeve on the outside of the leg. Under normal circumstances always low voltage windings on the inside near the core at the high-voltage windings on the outside. Between high voltage winding and the low voltage winding, and low-voltage winding between the legs must leave a certain insulation gap and cooling channels (oil passages), and separated by an insulating cardboard tube. The size of the insulation distance depends on the gap voltage windings and cooling channels required. When the low voltage winding on the inside near the leg, the insulation distance between it and the legs due to the required relatively small, so the size of the windings can be reduced, the whole transformer is also reduced dimensions. ? Power transformers are mainly: A, moisture absorption device (silica tube): built with silicone insulating oil conservator (oil pillow) within the device communicates with the atmosphere by absorbing moisture, the desiccant to absorb moisture in the air and impurities to maintaining inside the transformer windings good insulation properties; silicone discoloration, deterioration could easily lead to clogging. B, oil level gauge: reflect the state of the transformer oil level, generally about + 20O, too need to put oil, fuel is too low; low winter temperatures, the oil level when the load is light little change or a slight decrease in the oil level; summer, heavy load when the oil temperature rise, the oil level increased slightly; both are normal. C, oil pillow: Adjust fuel tank to prevent too rapid oxidation of transformer oil, the upper part of the filling hole. D, explosion-proof tube: to prevent sudden pressure polyethylene tank accident caused by an explosion hazard. E, signal thermometer: Monitor transformer operating temperature signals. Indicates the transformer top oil, transformer winding temperature higher than the top oil temperature 10 ℃. GB provides: transformer winding temperature limit is 105OC; (that is, when the ambient temperature of 40OC), the upper temperature not exceeding 95OC, usually to monitor temperature (top oil) is set at 85OC and less. F, tap switch: by changing the voltage winding tap to increase or decrease the number of windings to change the voltage ratio. G, gas signal relay :( gas relay) light gas, heavy gas signal protection. The contact is light gas signal, generally acting on an alarm signal to indicate abnormal operation of the transformer; contacts are under heavy gas signal, a signal of the circuit breaker after the action, out licensing, alarm; full of oil within the general Buchholz relay None gas, when the gas in the tank will enter the gas relay, when up to a certain extent, gas oil storage squeeze the contacts movement; open gas relay cover, on top of a second adjustment lever, unscrew the cap one can let go of the relay gas inside; the other is to protect the adjusting lever action test button; insulated gloves must be worn when live action and emphasis on security. The company has long been engaged in the construction, alteration, repair, maintenance, service, installation and testing of professional construction team, strong technical force, rich experience, sincere attitude. At the same time it has a complete construction machinery and equipment. Advanced quality testing equipment and a number of strong sense of service, enthusiasm, business skilled technical personnel. Professional skills, quality, service timeliness to provide effective protection. Looking ahead, the company will continue to follow the business purpose and philosophy, adhere to customer needs is our pursuit, dedication to provide customers with better service. High quality "good quality, high efficiency" high-quality products, reasonable prices, attentive service, is your choice. Website: http: //www.dongguanzhigao.com Dongguan quality high Electrical and Mechanical Engineering Co., Ltd. Tel: 0769-22290906 Fax: 0769-27285987