YenakiyevInstallation drawing of dry-type transformerAnalysis of Causes of Blockage Failure and Discussion of Solutions

The noise of dry-type transformer comes fromThe scientific research of power transformer oil is generally carried out according to the way of sampling. What are the common sampling methods and processes?Yenakiyev,How to maintain dry-type transformer?During no-load test run, the transformer shall be connected with the working voltage from the switching power supply side, and then make the working voltage impulse closing.Kampong Cham,The input and output three-phase power lines shall be connected to phase a, phase B and phase C respectively according to the color of yellow,YenakiyevInstallation drawing of oil immersed transformer, green and red bus duct of transformer terminal board. The zero line shall be connected to the neutral zero line of transformer voltage, and the grounding wire, transformer casing and its transformer point shall be connected to each other. At ordinary times,YenakiyevHow much is 500KVA box transformer,YenakiyevDifference between transformer and box transformer, the ground wire and zero wire are led out by the neutral wire of the transformer. (for example, the transformer box shall be matched with the ground wire mark of the shell and connected with each other). Check the input and output lines to ensure they are appropriate and accurate.Power transformer plantEquipped with a temperature controller, platinum thermistor (pt) is placed beside the embedded hole on the top of the low-voltage solenoid coil to test the winding resistance temperature rise of the transformer, stop the cooling centrifugal fan, set up common problem alarm, overtemperature alarm and overtemperature tripping effect and provide reliable overvoltage protection machinery and equipment for the dry test transformer, so as to test the safety performance of the transformer operation.

Noise dispersion of dry-type transformerHow to select dry-type transformerOn load commissioning:investment,Power transformer is an idealized supporting facility transformer for medium cabinet and high-voltage cabinet at the present stage, and can be equipped with safety protective casing according to different waterproof grades. It is applicable to key or unique natural environment sites such as multi-storey buildings, commerce, airports, tunnel construction, chemical enterprises and factories.Common problems of tap changer of power transformerIn order to better carry out the experiment of power transformer oil, it is necessary to sample the power transformer oil. The sampling work should be carried out on a dry sunny day. The commonly used containers and sampling methods during sampling do immediate harm to whether the specific quality of the oil can be truly reflected. The oil sample for AC voltage withstand test shall not be less than .kg, and the oil sample for simplified experiment shall not be less than kg.

Different diversion methods, dry-type transformers mostly use silica gel waterproof casing, while oil transformers mostly use porcelain waterproof casing;How much is it,The no-load impulse closing working voltage shall not exceed % of the working voltage marked on the gear of the transformer, the closing frequency shall be times, and the time interval of each closing shall not be less than min.It is understood that in China, S Series lossless distribution transformers were selected in China to replace the high energy consumption transformers of jb- and jb - Specifications operating in the power network at that time. Since the th century, S and S commodities are gradually selected in large quantities in the transformation of urban and rural power networks in China and S series distribution transformers have been used to replace S Series. In recent years, and their full load loss is % - % less than that of S transformer.Dry type transformer factoryYenakiyev,The iron core of power transformer is made of high-quality crystallized hot-rolled ferrite core, which is stacked at the degree fully inclined multi-step interface. The surface is covered with epoxy resin adhesive cable sheath coating, which is resistant to corrosion and rust, and has sound insulation and noise reduction.Brief introduction of zero line of power transformerWhat is the important role of power transformer