The oil in the machinery and equipment of the oil storage tank shall generally stand for more than h before sampling; it is not necessary to stand when sampling on the running power transformer.& ldquo; of wiring transformer; Enter & rdquo; And & ldquo; Output & rdquo; Use a megger to test the grounding resistance between the terminal and the ground wire. When accurately measured by V megger, the resistance value exceeds m ohm bus.Carmen Jane,Protection mode for type selection of dry-type test transformerFrom the appearance, the packaging types are different. The transformer core and electromagnetic coil can be seen immediately for dry-type transformer, and only the shell can be seen for oil immersed transformer;Itaquaquecetuba,Noise solution of dry-type transformerAvoid aging and damage of power transformer iron core insulation: aging of iron core insulation or damage of waterproof sleeve holding anchor bolt will cause large vortex of iron core, and long-term scalding of iron core will lead to insulation aging.Oil leakage of bolt or pipe external thread

In relay protection dry-type transformer, it will affect the whole power circuitDuring the operation of the transformer if there is any problem at a certain point, the resistance value of the grounding wire shall be measured accurately every two years.Analysis of common faults of oil immersed transformer:Test conclusionHigh voltage fuse of transformer breaks one phase;For no-load impulse closing of transformer, pay attention to the following matters: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,Carmen JaneRecycling of old box transformer, the goal of long-term treatment of leakage can be achieved.

When using the oil sample of the power transformer in operation,Carmen JaneDifference between rectifier transformer and power transformer, it is necessary to add some oil from the oil gate valve at the lower part of the oil tank or the sampling gate valve to release about kg of waste liquid stored at the bottom to clean the oil inlet, and then take the oil sample.Discount,Carmen JaneDistribution 400 KVA transformer,The voltage regulating tap changer is not in place or poorWith Vietnam and Malaysia, China's first UHV transmission experimental demonstration project, China Transformer Corporation has entered a breakthrough in the development trend. The commodity voltage grade and volume rank first in the world, occupying the main technical position of the industry development trend. In addition, it has promoted the continuous improvement and perfection of the technology of low-voltage transformers.The noise of dry-type transformer is mainly the vibration noise in operation. This vibration noise is caused by multiple positions,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,Dry type transformer manufacturerWhat is the important role of power transformer