When the transformer is put into operation， if the tap changer is not in time， a great & ldquo; Tweet & rdquo; The high-voltage fuse is broken when the noise is serious; If the tap changer is defective， it will cause mild & ldquo; Squeak & rdquo; Corona discharge sound， once the load increases， it is likely to burn the circuit breaker of the tap changer. In case of such situation， power off immediately for maintenance.
Difference between dry-type transformer and oil immersed transformer:
Morel gonjiMany people probably don"t know much about the power distribution transformer manufacturers. In fact， the transformer can be plugged in for trial operation after careful inspection before capital investment. During the trial operation period， you must pay attention to the following points. Whether there is abnormal sound，Morel gonjiHigh efficiency and energy saving power transformer， noise and vibration， whether there is abnormal smell such as coke smell，Morel gonjiWaste power transformer， and the phasor of the phase voltage of the secondary side is used as the second hand.
The power transformer conductor refers to the connecting transmission line between each electromagnetic coil， between the electromagnetic coil and the group outlet pipe， and between the electromagnetic coil and the tap changer.
(IV) the transformer on the column shall be stable and firm， and the waist rail shall be & phi; mm galvanized wire shall be wound over turns in an even number. The iron wire shall not have a connector and shall be tightened after winding. The distance between the waist rail and the energized part shall not be less than .m.
Noise pollution control and prevention measures of dry-type transformer
How to select dry-type transformer
Noise dispersion of dry-type transformer
Executive standardWhen checking the hook core， the insulation of the electromagnetic coil and the porcelain sleeve is usually accidentally damaged. After the shell of the pottery is broken， if you work again， turn on the photo flash when it"s light， and it"s short when it"s heavy. Therefore， please pay attention during maintenance. It is not necessary to destroy the insulation. After maintenance， experts can inspect special tools， parts， insulation，Morel gonjiPrice of recycled dry-type transformer， etc. and deliver them after they are determined to be complete and reliable.
Sound in case of phase failure
Oil immersed transformer
Method and process of taking oil sample of power transformer
Let"s seeOutdoor sampling shall be carried out in sunny days or dry weather with low environmental humidity. During sampling， it is necessary to resolutely prevent the invasion of dirt such as rain， snow， wind and sand.
Several detection methods for installing transformer
Power transformers are also used for testing， which are called test power transformers. They can be divided into inflatable， oil transformer， dry test and other test power transformers. They are the basic test equipment for communication AC compression test for many consumers such as power stations， power supply bureaus and scientific research institutions. According to the specifications of the Bureau of quality supervision， It is used to carry out insulation compressive strength test under required current for various electrical products， electrical components and insulating raw materials.
Morel gonjiThe conductor insulation of power transformer is the main part of internal insulation. Some conductors should pass through the middle of electromagnetic coil， or between electromagnetic coil， iron yoke clamp and automobile oil tank wall. Therefore it is necessary to ensure that this kind of conductor has sufficient insulation compressive strength， i.e. insulation spacing.
It is generally made due to unreasonable installation or ineffective sealing. Polymer composite materials can bond metal materials porcelain， laminated glass and other materials very well， so as to achieve the pressure management of oil leakage.
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.