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CheeseScb13-1250kva dry type transformerIndustry specific operations

Article author:Cheese issuing time:2022/05/11 09:11:43 Reading:77

Transformer inspection ear

6The step-up dry-type transformer refers to the instantaneous operation of voltage. At this stage, there are few manufacturers of dry-type transformer that can reasonably guarantee the instantaneous step-up in China. The step-up dry-type transformer has strong step-up capacity and good practical effect. The difference depends on that the transformer power switch without excitation regulator does not have the ability to change gear with load. Because this kind of tap power switch can cut off the whole process in a short time during the whole process of gear change, cutting off the load current will cause arc burning between circuit breakers, tap power on and off or short circuit fault, so the dry-type transformer shall be powered off during regulation. Therefore, it is generally used as a dry-type transformer that is not very strict in voltage regulation and does not need to be adjusted frequently.

rCheeseThe manufacturing process of dry-type transformer is very process,Products Show and must be technically as a certain pillar. Only in that way,HokotenangoScb11 dry type transformer sizeWhat are the types the performance of dry-type transformer will be more stable. What are the common manufacturing processes and steps of dry-type transformer?

It is understood that in China, transformers have experienced the whole process of replacing many series products such as S. As early as the middle and late s, 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, urban power grids have been transformed all over the country, and S series distribution transformers have been used to replace S Series. In recent years, S and S commodities are gradually selected in large quantities in the transformation of urban and rural power networks in China, and their full load loss is % - % less than that of S transformer.

NMstsislawThe common dry-type transformer is an important electrical equipment, and the voltage is constantly regulated. However, because of certain necessity,Products Show the dry-type transformer will also boost voltage, and the whole process of boosting voltage is very complex, and there are many principles.

VuFor oil transformer oil replenishment, unused transformer oil conforming to the new standard should be selected first. In addition the oil with the same basic, there is generally no problem. However, if there is more new remaining oil, oil shall be added before oil type Chromatographic analysis and pressure test shall be carried out to establish that there is no oil stain and the acid value and dielectric loss shall not exceed the oil in the machinery and equipment.

Hand touch method for transformer inspection


CheeseScb13-1250kva



The transformer manufacturer said that the temperature display equipment: the temperature change value is measured according to the PT temperature sensor embedded in the bottom voltage winding to immediately indicate the winding temperature of each phase (three-phase safety inspection and Zui large value indication, and the historical time Zui high temperature can be recorded). The Zui high temperature can be input and output as mA analog quantity. If it is to be transmitted to a distance (the distance can reach m, the electronic computer can be equipped with an electronic computer socket, an intelligent transmitter,Products Show and transformers can be detected. The over temperature alarm and trip of the system software can also be signaled by the resistor data of Pt thermistor sensor, so as to further improve the stability of the temperature maintenance system software.

sOil immersed transformer

PMaintenance contents of power transformer

QMeticulous workmanshipHand touch method for transformer inspection

fBWhen the operating oil is mixed with different types of new oil or used for oil,HokotenangoScb11 dry type transformer sizeWhat are the types in addition to the accurate measurement of the cold filter point of the mixed oil, it is also necessary to carry out high and low temperature test and sludge test, and observe the sludge accumulation. The accumulation cannot be accessed. The results of the operation of the mixing template are not that the original oil is very poor, so it can be managed and used in a mixed manner.

Two point grounding device of iron core caused by residual welding scar;


CheeseScb13-1250kva



According to the introduction of transformer manufacturers, the capacity utilization rate is only about %, which is regarded as & ldquo; Great Lars car & rdquo;, After replacing one kva small transformer, the utilization rate is close,Power transformer price: 1000KVA, 33kV, 25kV, power transformer, oil immersed transformer, dry-type transformer factory but the main parameters of the two transformers are evaluated as shown in Table . Table evaluates the main parameters of the transformer: capacity (VA) iron loss (W) copper loss (W). Firstly, the output power is saved according to the customary calculation method (ignoring copper loss): the results show that the loss of large capacity transformer is lower than that of small capacity transformer, It actually consumes electromagnetic energy.

supplyxThe insulation between silicon steel sheets is damaged, resulting in overheating and melting of the iron core;

UDue to poor sealing, generally, it will lead to common faults of oil leakage.

Precautions for trial operation of power transformer manufacturers

nCheeseThe common dry-type transformer is an important electrical equipment, and the voltage is constantly regulated. However, because of certain necessity the dry-type transformer will also boost voltage, and the whole process of boosting voltage is very complex

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