The operation of baoding oil-immersed transformer has direct influence on the power supply quality of the whole power system. In the actual operation, due to the constraints of various factors, the transformer is inevitable in the operation process, so there will be various failures. These failures can lead to power outages or even major power accidents. Therefore, it is necessary to carry out scientific analysis on the fault of baoding oil-immersed transformer. Next, we will analyze the common faults of oil immersed transformer circuit in baoding
Effect of discharge fault on insulation of baoding oil-immersed transformer:
1. Discharge particles directly bombard the insulation, making the insulation breakdown.
2. Ozone and nitrogen oxides produced by discharge chemically corrode the insulating components, resulting in thermal breakdown.
Partial discharge fault
The phenomenon of non-penetrating discharge at the edge of the hole is called partial discharge under the action of voltage in the insulation structure. The reason is that gas exists in the holes or cavities of oil (changed into transformer oil). The dielectric constant of gas reduces the compressive strength of insulation materials and causes discharge between air gaps. Although the energy intensity of partial discharge is not large, the potential hazard should not be underestimated. If long-term partial discharge will cause breakdown or damage of the oil-immersed transformer equipment in baoding, it is a serious safety hazard.
A breakdown caused by damage to insulation
First, when the oil immersed transformer is installed in baoding, its body is exposed to air, causing damp. Oiling is complete, allowing moisture to concentrate around the insulation.
Second, due to the short manufacturing cycle of the equipment, if the insulation is not fully dried before leaving the factory, the moisture absorbed insulating paper and paperboard will be released after running for a period of time. As a result, the insulation performance of the low-voltage winding of the transformer will be reduced and the dc leakage current will be increased.
Third, poor sealing is easy to cause winding insulation part damp.
Fourthly, if the volume of hydrogen and carbon monoxide in the transformer oil running is relatively high, the adsorption of gas produced by solid insulation materials or stainless steel in the manufacturing process should also be considered.
Baoding zhongyi electric material manufacturing co., LTD is a professional manufacturer of transformer for baoding transformer factory. It has professional production equipment, hoisting, tooling and testing equipment, and has established a perfect quality management system.
Main products of the company: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.
