Dry Type Three-Phase Step Down Power Transformer, Safe and Non-Polluting


Product description
Resin-insulated dry-type transformers are safe, non-flammable, fireproof, and pollution-free. It can be directly installed in the load center, maintenance-free, easy to install, low overall operating cost, low loss, good moisture-proof performance, can operate normally under 100% humidity, and can be put into operation after shutdown without pre-drying. Low partial discharge, low noise, strong heat dissipation capacity, 120% rated load operation under forced air cooling. Equipped with a complete temperature protection and control system, it provides a reliable guarantee for the safe operation of the transformer with high reliability.
Product features:
Main material and characteristics: Class F coil insulated copper wire as conductor, glass fiber and epoxy resin composite materials for insulation, its coefficient of expansion similar to the copper conductor.with good impact resistance, temperature changes, crack resistance. Glass fiber and epoxy resin constituent all have self-extinguishing, it does not continue to burn, it does not produce toxic gases and pollute the environment.Epoxy resin has good insulating properties, particularly suitable for the production of high-voltage level
Manufacturing process: The winding wound on the high-accuracy winding machine, when winding pave cast grass fibre around the external and internal of the winding, there be armed air passage for transformer of large ca Then dry it in vacuum.The whole casting and solidifying process is performed according to the pi curve of casting control terminal, which transferred through computer network by process department every process can be monitored momentarily and adjusted for the various surroundings. The precise process ensures free bubble and free hole of winding.
1. Safe, not combustible, fireproof can be installed directly in the load center
2. Maintenance-free, easy installation, low economic operation cost
3. Good moisture resistance can operate normally under 100% humidity
4. Low loss, low noise, good insulation, small local discharge, no pollution, loss
5. Good heat dissipation, strong overload capacity, under the condition of air cooling, can overload 50%
6. Reliable operation, with perfect temperature protection control system, can ensure the safe operation of the transformer
7. Small volume, lightweight, stable structure, strong lightning shock resistance, high mechanical strength, temperature change resistance, anti-sudden short circuit ability
Product Details


Rated capacity(KVA) |
Voltage Combination and tap range |
connection of transformer winding |
No-load loss
(w) |
Load loss (W) |
No-load current (%) |
Short circuit impedance (%) |
High voltage(KV) |
High voltage taps range (%) |
Low voltage(KV) |
30
50
80
100
125
160
200
250
315
400
500
630
630
800
1000
1250
1600
2000
2500 |
6
6.6
6.6
10
10.5
11
|
±5%
±2x2.5% |
0.4
|
Dyn11
|
130
190
260
280
330
380
435
505
615
685
810
940
910
1065
1240
1460
1715
2135
2520 |
710
1000
1380
1570
1850
2130
2530
2760
3470
3990
4880
5880
5960
6960
8130
9690
11730
14450
17170 |
2.6
2.2
2.2
2
1.8
1.8
1.6
1.6
1.4
1.4
1.4
1.2
1.2
1.2
1.1
1.1
1.1
1.0
1.0 |
4
4
4
4
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
|
Shipping
By sea,Ninbo port ,shanghai port.