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
What is the reason for the shutdown of power transformer?
SotkamoOil sample inspection & mdash; & mdash; the performance parameters such as compression resistance and residue shall be carried out every three years. The long-term overload or overload of the transformer can reduce the cycle time.
Oil leakage of bolt or pipe external thread
MutensPower transformer is one of the key equipment in power station and substation. The function of power transformer is in all aspects. It can not only raise the voltage and send electromagnetic energy to the power consumption area， but also reduce the voltage to each application voltage， so as to meet the needs of power consumption. In short， voltage transformation and blood pressure reduction must be carried out by the transformer.
In the whole process of transmitting electromagnetic energy in the power supply system， it will inevitably cause the loss of voltage and output power. When transporting the same output power， the voltage loss is inversely proportional to the voltage，SotkamoModel of 35kV dry type transformer， and the output power loss is inversely proportional to the square meter of voltage. The transformer is used to increase the voltage and reduce the closing damage.
After sampling， bind the laminated glass stopper firmly with clean paper or cloth to prevent dirt and water from contaminating the bottle stopper.
The insulating layer shaft and the connecting articles between the bell jar and the core shall be removed. If it is a hanging bell inspection， the oil shall be pumped into the bottom of the bell jar before the bell jar can be removed.
In order to promote the use of energy-saving transformers， the Ministry of finance， the Ministry of industry and information technology and the national development and Reform Commission jointly promulgated the detailed rules for the implementation of energy-saving distribution transformers of energy-saving products benefiting the people project as early as ， providing subsidies of - yuan / KVA for energy-saving transformers.
Dry type transformer oscillation is solved by applying vibration damping platform to dry-type transformer and carrying out low-frequency vibration reduction management， which can control the oscillation below .%， and then reduce the building structure noise transmitted by dry-type transformer oscillation.
Total quality managementBefore no-load impulse closing， the transformer shall be placed for h， and the rising seat and waterproof sleeve installed with vent plug shall be deflated on time.
When the whole process of winding wave of oil immersed transformer is calculated by using the marking method， the winding of oil immersed transformer is generally divided into multiple modules， and its power circuit includes an inductance and vertical capacitance， a capacitance to ground or capacitance between windings， They also have mutual inductors between the inductors of each module， and collect the chain Internet as the equivalent power circuit of oil immersed transformer. The precision of the conclusion can completely meet the needs of practical projects.
The vibration reduction of the grounding device sheet solves the problem of modifying the fixed hard connection between the copper sheet of the grounding device and the dry-type transformer. The original oscillation of the dry-type transformer will be transmitted to the metal in the concrete by the baffle and cause low-frequency noise. Therefore， it must also be changed to produce flexible connection.
Oil leakage of heat pipe radiator
PromotionThe bearing capacity of each load is different. Generally， dry-type transformer should operate under rated capacity， class H dry-type transformers shall be used. If the standard impulse level of power load exceeds kV， epoxy resin adhesive shall be used to pour dry-type transformers.
After hours of continuous trial operation with a certain load， the main body and accessories of the transformer are all normal and the transformer will turn to all normal operation.
SotkamoThe power transformer belongs to relatively durable electrical equipment， and we can"t neglect it in daily application. The common problems of power transformer conductor， power transformer winding and power transformer tapping power switch are analyzed below:
Oil leakage at electric welding position
The flange surface is uneven， the tightening bolts are loose and the installation and processing process is wrong， so that the bolts are not tightened well， resulting in oil leakage.
