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2000kVA dry type transformer

Date of issue: 2020/9/11 16:22:13 Source: http://perryswenson.com Click: zero

  The load of 2000kVA dry-type transformer fluctuates greatly and the environment is dirty and humid. Such as: suitable for high-rise buildings, commercial centers, airports, tunnels, chemical plants, ships and other important or special environmental places. The 2000kVA dry-type transformer produced by our factory is the first low-noise and low-loss resin wound injection coil dry-type transformer with product type certificate in China. Due to the advanced design, high quality materials, scientific formula, strict technology and high standard testing, the product has the following characteristics: 1. Copper wire is used for high voltage winding, copper wire or copper foil is used for low-voltage winding, glass fiber mat is filled and wrapped, and epoxy resin without filler is used in vacuum state. After curing, it forms a solid cylindrical whole with high mechanical strength, small partial discharge and high reliability. 2. Flame retardant, explosion-proof, no environmental pollution. The glass fiber and other insulating materials of winding coil have self extinguishing characteristics, which will not generate arc due to short circuit, and resin will not produce toxic and harmful gas under high heat. The coil does not absorb moisture, and the core clamp has a special anti-corrosion protective layer, which can operate in 100% relative humidity and other harsh environments. There is no need to remove moisture during intermittent operation. 4. High resistance to short circuit and lightning impulse. The resin layer inside and outside the coil is thin, and the heat dissipation performance is good. Air natural cooling (an) is generally used for cooling. For any protection level of transformer, air cooling system (AF) can be configured to improve short-term overload capacity and ensure safe operation. 6. Low loss, good power saving effect, economical operation and maintenance free. 7. It is small in size, light in weight, occupies less space and has low installation cost. It is unnecessary to consider oil drainage pool, fire prevention and fire fighting facilities and standby power supply. Since there is no risk of fire and explosion, it can be installed in the load center and close to the power consumption point, so as to reduce the line cost and save the expensive low-voltage facilities cost.

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 2000kVA dry type transformer

The 2000kVA dry-type transformer is made of high-quality materials and scientific formula. It is produced by using advanced production testing equipment and strict process.

Functional features:

The voltage level is 10-35kV, transformer capacity is SC10, scb10-3-2500kva. The transformer is developed by our company on the basis of digestion and absorption of imported technology. The design and manufacture of the products meet the requirements of iec60076, gb6450, GB / t10228 and other standards. The products are widely used in electric field plants, power stations, industrial and mining enterprises, user distribution stations, etc

Power and distribution system, the product has the following features:

(1) low loss, fully meet the requirements of * * 9,10,11 series products and * * energy saving standards;

(2) the partial discharge is small;

(3) the insulation grade reaches F level, the temperature resistance is 155 ℃, the actual operation temperature rise is low, and the overload capacity is strong. Under the condition of self cooling, it can run 120% overload for a long time, and 150% overload operation under forced air cooling condition;

(4) the noise is low, which is about 20dB lower than the national standard;

(5) it has reliable performance, safe operation, convenient maintenance, high overall mechanical strength, strong short-circuit resistance, good impulse overvoltage resistance and moisture-proof performance.

Features of 2000kVA dry type transformer:

1. It has good flame retardant performance, and the insulating materials such as glass fiber and resin used in the non polluting coil have the characteristics of flame-retardant and self extinguishing, and will not produce toxic gas due to heating.

2. The partial discharge is small, because there is no bubble and no gap in the high and low voltage coil due to the casting in vacuum state, and the partial discharge capacity is not more than 5pc.

3. It has good moisture-proof performance, no dust collection, and no fear of corrosive gas erosion. The iron core and clamp after anti rust and corrosion treatment are the same as the coil, which is suitable for operation in harsh environment, especially in hot environment.

4. It has high mechanical strength and good thermal stability. After curing, it forms a hard cylindrical coil. Due to the excellent combination of insulating materials and the thermal expansion coefficient basically consistent with copper conductor, it has obvious impact resistance and crack resistance.

5. Good insulation performance, high level of lightning impulse resistance and strong ability to withstand sudden short circuit.

6. Strong overload capacity. Due to good heat dissipation performance, short circuit overload capacity is strong.

7. Low loss, small volume and light weight, which can save installation space and reduce the installation and operation cost to a relatively low level.

8. Good economic performance, no fire, explosion, can be installed in the load center, fully close to the power point, saving expensive low-voltage facilities. Save the electricity cost of power box. Because there is no transformer oil, installation is not considered oil drainage, oil collection, fire protection and other facilities. Maintenance free, can save a lot of materials and maintenance costs.

Structure of 2000kVA dry type transformer:

1. The coil is wound with copper wire or foil, reinforced with glass fiber, epoxy resin without filler, vacuum drying, degassing and dehumidification. It has high mechanical strength, short circuit resistance and impact resistance.

2. Copper nut embedded structure is adopted in the head end and middle tap of high-voltage winding, which has good rigidity, easy adjustment and beautiful appearance.

3. The iron core is made of high-quality grain oriented cold-rolled silicon steel sheets with 45 ° full inclined multi-step joints. The surface is covered with resin insulation coating, which can resist moisture, rust and reduce noise.

4. Elastic parts are used to clamp the core, clamp and coil to keep the coil in a constant compression state to reduce noise.

5. The transformer is designed according to the self cooling design. The longitudinal ventilation channel is reserved in the wall of the high (low) pressure coil, which can be equipped with forced air cooling device (cooling fan). After adopting the forced air cooling device, the rated output capacity can be increased by 50% (500KVA and below 40%).

6. It is equipped with bwdk series temperature controller, and platinum resistance (PT100 ) is placed in the embedded hole at the top of low-voltage coil. In order to monitor the temperature rise of transformer winding, start and stop the cooling fan automatically, and have the function of fault alarm, over temperature alarm and over temperature trip, which can provide reliable overload protection device for dry-type transformer, so as to improve the safety of dry-type transformer operation.


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