Vpi Dry Type Transformer

Vpi Dry Type Transformer

A VPI dry-type transformer is a type of electrical transformer that uses air for cooling and insulation instead of oil or liquid. "VPI" stands for Vacuum Pressure Impregnated. This means the transformer's windings are submerged in a special resin, and then subjected to a vacuum and pressure treatment.
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vpi dry type transformer

Product Details

Product Introduction

A VPI dry-type transformer is a type of electrical transformer that uses air for cooling and insulation instead of oil or liquid. "VPI" stands for Vacuum Pressure Impregnated. This means the transformer's windings are submerged in a special resin, and then subjected to a vacuum and pressure treatment.

 

dry-type transformer

 

Product Parameter
Rated Capacity
(kVA)
Voltage Combination
Connection group symbol
No-load loss
(W)
Under the different insulation heat-resisting rank load loss(W)
No-load current
%
H.V.(kV)
High Voltage Tapping
L.V.(kV)
130°c
(B)(100°c)
155°c
(F)(120°c)
180°c
(H)(145°c)
30
 
 
 
 
 
 
 
 
 
 
 
6
6.3
6.6
10
10.5
11
 
 
 
 
 
 
 
 
 
 
 
 
 
±2x2.5

±5
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0.4
 
 
 
 
 
 
 
 
 
 
 
 
 
Dyn11
Yyn0
130
605
640
685
2
50
185
845
900
965
2
80
250
1160
1240
1330
1.5
100
270
1330
1415
1520
1.5
125
320
1565
1665
1780
1.3
160
365
1800
1915
2050
1.3
200
420
2135
2275
2440
1.1
250
490
2330
2485
2665
1.1
315
600
2945
3125
3355
1
400
665
3375
3590
3850
1
500
790
4130
4390
4705
1
630
910
4975
5290
5660
0.85
800
1035
5895
6265
6715
0.85
1000
1205
6885
7315
7885
0.85
1250
1420
8190
8720
9335
0.85
1600
1665
9945
10555
11320
0.85
2000
2075
12240
13005
14005
0.7
2500
2450
14535
15445
16605
0.7

 

Structural characteristics

1. Safe, fireproof, pollution-free, can run directly in the load center;

2. Adopting domestic advanced technology, it has high mechanical strength, strong short-circuit resistance, small local discharge, good thermal stability, high reliability and long service life;

3. Low loss, low noise, obvious energy-saving effect, maintenance-free;

4. Good heat dissipation performance, strong overload capacity, and forced air cooling can improve the operating capacity;

5. Good moisture-proof performance, adaptable to high humidity and other harsh environments;

6. Dry transformers can be equipped with perfect temperature detection and protection systems. Adopting an intelligent signal temperature control system, it can automatically detect and display the respective working temperature of the three-phase windings. It can automatically start and stop the fan, and has alarm, tripping and other functional settings;

7. It is small in size, light in weight, occupies less space, and has low installation cost.

 

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