After tightening the loose bolts， and solve the bolts that are likely to leak， so as to achieve the goal of complete treatment. Tighten the loose bolts strictly according to the actual operation and processing technology.
Oil immersed transformer
VitnikThe grounding resistance of， high voltage and bottom voltage shall not be less than % (m & omega;) of the original value. The difference between the three-phase mean value of winding resistance measurement at the same temperature shall not exceed %， which shall not exceed % compared with the last accurate measurement result.
Fault judgment of power transformer
LarmatiThen clamp the branch pipe with your thumb， clearly put forward the glass test tube， rotate and release the oil in the tube to clean the sampling tube， carry out it twice and then draw the oil sample.
Noise dispersion of dry-type transformer
Power transformer factory
When 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， etc. and deliver them after they are determined to be complete and reliable.
The domestic transformer market is slow
The dry-type transformer is composed of two winding resistances resulting in four wiring groups: & ldquo; y， Y & rdquo;，VitnikPower transformer manufacturer， & ldquo; D， Y & rdquo;， & ldquo; y， D & rdquo; and & ldquo; D， D & rdquo;. In China， only & ldquo; y， Y & rdquo; and & ldquo; y， it will not be upgraded. All marks show that with neutral line， it will not be upgraded The letter N after the English letter Y indicates that the neutral line has transformer grounding wire. Yn wiring group， when UAB and UAB overlap， the minute hand points to . & ldquo; & rdquo; in the new wiring group， it is indicated by & ldquo; & rdquo.
Home page recommendationPower 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，VitnikWhat is the price of 2000kVA transformer， commerce， airports， tunnel construction， chemical enterprises and factories.
In fact， ground wire is not only a kind of grounding protection. The following describes in detail that ground wire is the general name of grounding system. Ground wire is divided into protective grounding and safety factor grounding device. Among them， safety factor grounding device can be divided into grounding protection anti electric shock grounding device and anti electromagnetic wave radiation grounding device. Protective grounding is to use it for loop to make the facilities achieve the grounding wire specified by the function.
When we apply oil immersed transformer， we all know that it works with the help of oil. What if the oil immersed transformer is on fire? What countermeasures should we do?
There are many connection groups of dry-type transformers， and the selected structures and connections are also different. Then， what are the groups of dry-type transformers? How to carry out the connection? Or basically introduce it with the network of dry-type transformer manufacturers.
installIn terms of the place of use， and most application places leading to fire accidents are easy to choose in large and medium-sized engineering buildings and multi-storey buildings;
The transformer manufacturer will introduce the efficiency of the transformer to you
Before no-load impact closing， the pose period of overcurrent protection shall be set to zero， and the data signal circuit of steam vehicle relay shall be temporarily connected to the pull-in circuit.
VitnikThe raw materials of Fushi blue can be used for bonding， so that the overall oil leakage of the connector can be greatly controlled; If the actual operation is convenient， the metal shell can also be bonded at the same time to achieve the purpose of leakage treatment.
Method and process of taking oil sample of power transformer
Before and after sampling， clean the periphery of the sampling port with clean or hairless linen.
