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(I) the distance between the external contour of kV and below dry-type transformer and the surrounding guardrail or courtyard wall shall take into account the convenience of transportation and repair of dry-type transformer, and the distance shall not be less than m; At the angle with actual operation,WeltPeriodic voltage regulator for maintenance of oil immersed transformer, a spacing of more than m shall be reserved; If metal fence is selected, the metal fence shall be grounded and a warning sign shall be hung at a prominent position.Method and process of taking oil sample of power transformerWelt,WeltLow voltage oil immersed transformer,At that time, only a few companies in China could produce kV high-voltage transformers, and the market share of high-voltage transformers was basically monopolized by overseas leaders.The tail end of the high-voltage winding head and the middle tap are made of copper inserts and embedded parts, with good strength and stiffness, which is conducive to adjusting the data and has a unique and neat style.Mumbwa,Oil leakage of bolt or pipe external threadDry type transformer factoryConnection group structure of dry-type transformer

When the manufacturer of the power transformer samples from the automobile oil tank, after opening the sealing cover, use the cleaned and dried rubber stopper to the oil. At the same time, clamp the branch pipe with your thumb, and loosen your thumb to make the oil enter the pipe, sometimes such specifications are not saving electromagnetic energy,During no-load test run the transformer shall be connected with the working voltage from the switching power supply side, the transformer shall be placed for h and then make the working voltage impulse closing.Before no-load impulse closing,WeltTemperature standard for oil immersed transformers, and the rising seat and waterproof sleeve installed with vent plug shall be deflated on time.Manufacturing process and steps of dry-type transformer

The key reason for oil leakage is that there are defects in cast iron partsQuality department,Power transformerTwo point grounding device of iron core caused by residual welding scar;In order to better reduce the probability of short-circuit fault of relay protection dry-type transformer, prevention and key are & ldquo; Prevention and Manipulation & rdquo; Is dominant.Welt,For the leakage that has already occurred, find the leakage point first, which can not be ignored. For the position with serious leakage, shovel or sharp punch can be selected. The leakage point can be riveted with special tools for metal materials. After manipulating the leakage, the treatment surface shall be cleaned and tidy. Polymer composite materials are mostly selected for dry consolidation. After dry consolidation, the goal of long-term treatment of leakage can be achieved.The representative mode of connection group of dry-type transformer is: English capital letters indicate the wiring on the primary side (or primary side), and English letters indicate the wiring on the secondary side (or secondary side). Y (or y) is star wiring, and D (or D) is triangular wiring.In relay protection dry-type transformer, the disconnection of the fault point is related to each other. In a word, if there is any problem at a certain point, it will affect the whole power circuit