Baoding zhongyi electric material manufacturing co., LTD. Is located in baiyangdian science and technology city of baoding city with beautiful environment. The main products of the company are oil-immersed power transformer, dry-type transformer, box-type substation, high-low voltage switchgear and various special transformers. Hoisting, tooling and testing equipment is complete, the company has passed the is09001-2015 international standard quality management system certification, product performance indicators have reached the relevant national standards and international standards. Today we will focus on a detailed explanation of dry transformer product knowledge.

In the past 20 years, with the development of world economy, dry type transformer has achieved rapid development all over the world. Especially in the distribution transformer, the proportion of dry transformer is increasing, according to statistics, in Europe and the United States and other developed countries, it has accounted for the distribution of 40 ~ 50%. In China, it accounts for about 50%. Dry type transformer safety, fire protection, no pollution, can be directly operated in the load center; Dry transformer adopts domestic advanced technology, high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, high reliability, long service life; Low loss, low noise, obvious energy saving effect, maintenance-free; The dry type transformer can be equipped with perfect temperature detection and protection system. The intelligent signal temperature control system can automatically detect and display the respective working temperature of the three-phase winding, automatically start and stop the fan, and set the alarm, tripping and other functions.

In terms of structural form, dry type transformer open type: it is a commonly used form, its body is in direct contact with the atmosphere, suitable for relatively dry and clean indoor, (when the ambient temperature is 20 degrees, the relative humidity should not exceed 85%), generally there are two cooling methods of air self-cooling and air cooling. Enclosed: the device is located in a closed shell, not in direct contact with the atmosphere (due to poor sealing and heat dissipation conditions, mainly used for mining, belongs to explosion-proof). Casting type: epoxy resin or other resin casting as the main insulation, it is simple in structure, small size, suitable for small capacity transformer.

Dry type transformer in product selection:

(I) select transformer according to load:

1. When there are a large number of primary and secondary loads, it is advisable to install two or more transformers. When one of them is disconnected, the capacity of the other transformers can meet the demand of primary and secondary loads. First, the secondary load as far as possible concentrated, should not be too dispersed.

2. Special transformer should be installed when seasonal load capacity is large. Such as large civil s4270d27-29 27 July 29, 2005,3:24AM in the building air-conditioning chillers load, heating load and so on.

3. When the concentrated load is large, special transformer shall be installed. Such as large heating equipment, large X - ray machine, arc furnace, etc.

4. When the lighting load is large or the use of common transformers for power and lighting seriously affects the lighting quality and lamp life, a special lighting transformer can be set.

(ii) selection of transformers according to the operating environment:

1. Under normal media conditions, oil-immersed transformer or dry-type transformer can be selected according to the situation, such as independent substations of industrial and mining enterprises, agriculture or sub-substations, independent substations in the community, etc. The transformers available are S8, S9, S10, SC (B) 9, SC (B) 10, etc.

2. In multi-storey or high-rise buildings, non-combustible or non-combustible transformers, such as SC (B) 9, SC (B) 10, SCZ (B) 9, SCZ (B) 10 and so on, should be selected.

3. In places where dust or corrosive gases seriously affect the safe operation of transformers, sealed type or sealed type transformers should be selected, such as BS 9, S9 -, S10-, sh12-m, etc.

4. High and low distribution devices without flammable oil and non-oil-immersed distribution transformers can be set in the same room. At this time, the transformer should be equipped with IP2X protective shell for safety.

In terms of application status: dry type transformer is not required to be placed in a separate room because there is no oil, no fire, explosion, pollution and other problems. The loss and noise are reduced to a new level, which creates conditions for the transformer and low-voltage panel to be placed in the same distribution room.

In terms of installation points: distribution transformer is an important component of the substation, dry type transformer without shell is installed directly on the ground, and protective shield is added around; The shell dry type transformer is installed directly on the ground. See national building standard design for installation.

Main products: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment, etc. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.