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PepperCharacteristics of dry type transformerInconsistent views on the industry outlook

Article author:Pepper issuing time:2022/06/23 09:00:44 Reading:35

Transformer is a kind of power engineering equipment that converts working voltage and current according to the basic law of magnetic effect of current. In the whole process of power transmission and transformation of power engineering, it is necessary to carry out voltage transformation and blood pressure reduction according to the transformer to reduce the loss in the whole process of electromagnetic energy transmission. Therefore, the power consumption of the processing plant is all connected with kV switching power supply, which is converted into bottom voltage electromagnetic energy through transformer.

2The 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,Products Show tap power on and off or short circuit fault,RajorellaCapacity specification of 10kV power transformerPoor fire resistance 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.

hPepperConnection group structure of dry-type transformer

Transformer manufacturers said that at this stage, the energy-saving distribution transformer Market in China is relatively scattered, coupled with the constraints of factors such as low threshold in the field uneven companies, lack of evaluation and specifications, and inadequate technical innovation, resulting in the slow marketing and promotion of energy-saving transformers.

NSalfeldenAfter the power transformer has been used for a long time, common faults of iron core will occur. Dont worry. Contact the transformer manufacturer, and the manufacturer will assign professional technicians for inspection. The main reasons are as follows:

UpIt should be said that after the development trend of these years,Products Show the overall level of Chinas transformer industry at this stage is basically international, and the quality level is no different from that of overseas goods& rdquo; The person in charge of the transformer Federation of China Household Appliance Industry Association said.

Relevant responsible persons of the transformer Federation of China Household Appliance Industry Association show that the development prospect of transformers in China in the future is still the development trend of environmental protection, low noise, fire safety and explosion-proof and high reliability. There are two key development prospects: one is the development trend of high voltage and high voltage, especially kV and kV. The second is the development trend towards environmental protection, energy conservation and miniaturization. The former key is applied to the long-distance substation project route, and the latter key is applied to the substation project route in big cities.


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,Products Show 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,RajorellaCapacity specification of 10kV power transformerPoor fire resistance and their full load loss is % - % less than that of S transformer.

dBrief introduction of zero line of power transformer

PWith Vietnam and Malaysia, Chinas first UHV transmission experimental demonstration project, China Transformer Corporation has entered a breakthrough in the development trend. The commodity voltage grade and volume rank first in the world, it has promoted the continuous improvement and perfection of the technology of low-voltage transformers.

FQuality assuranceThe fundamental reason for this kind of inaccuracy is that when the transformer & ldquo; Dalar trolley & rdquo; is considered according to the size of capacity utilization rate, the high-capacity transformer must be replaced by the small-capacity transformer with high utilization rate, and then the iron loss is considered and the copper loss is ignored. In fact, for a certain load the active power loss of small capacity exceeds that of large capacity The active power loss of the transformer, its output voltage is directly proportional to the coil turn ratio of the output input solenoid coil. If a rechargeable battery is used so it consumes electromagnetic energy.

lIIf the input of dry-type transformer is an alternating switching power supply,Power transformer price: 1000KVA, 33kV, 25kV, power transformer, oil immersed transformer, dry-type transformer factory because it is DC, add a circuit in the input power supply circuit to change it into a continuously changing voltage. In that way, the alternating DC current can be obtained at the output end.

Precautions for trial operation of power transformer manufacturers


The transformer manufacturer shall not use hand touch method to detect energized high-voltage equipment, such as transformer in operation and neutral grounding equipment of arc suppression coil. For the equipment without power supply and whose shell is reliable grounding device, the temperature or temperature rise must be tested by hand. The secondary equipment can be inspected by hand touch method when it is hot and vibrated.

resourcesoThe top and middle of the transformer oil tank, the flange plate, resulting in insulation damage.

OSolenoid insulation deterioration

The specific contents include eliminating the shortcomings found in the patrol inspection, cleaning the porcelain waterproof casing, checking and tightening the nodes, replenishing the oil with less oil, checking and replacing the silica gel of the breathing mask, etc.

nPepperAt that time, only a few companies in China could produce kV high-voltage transformers, and the market share of high-voltage transformers was basically monopolized by overseas leaders.

jJIn 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 promotion and 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.

Power transformer is indispensable for power stations and substations, but we must pay attention to many problems in the whole process of applying power transformer.

TAGSlabel:Products Show

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