S9 Series Three Phase Oil Immersed Distribution Transformer
S9 Series Three Phase Oil Immersed Distribution Transformer

S9 Series Three Phase Oil Immersed Distribution Transformer

The iron core is made of cold-rolled grain-oriented silicon steel sheets with high magnetic conductivity, with inclined joint laminated structure. Section of the core limbs is of multi-class ladder round, with uniform section with that of yoke.

Feature

The Iron Core is Made of Cold-Rolled Grain-Oriented Silicon Steel Sheets With High Magnetic Conductivity, with Inclined Joint Laminated Structure

The Winding Adopts Corrugated Oil Duct With Non-Dipping Process, Bound By Shrinkable Tape

Transformer Oil Tank is Composed Of Corrugated Walls With Powder Painted Surface And Reinforced With Film; This Hermetically Sealed Transformer Does Not Have Oil Conservator, Which Decreases 1 H& Height Of Transformer;The Transformer Adopts Vacuum Oil-Injection Technology During Encapsulation That Thoroughly Removes The Moisture From Transformer, Avoid Insulation Performance Reduction Or Oil Aging Due To Entering Of Oxygen Or Moisture, It Improves Operation Reliability Of Transformer

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Product Introduction

OVERVIEW

 

Iron core:

The iron core is made of cold-rolled grain-oriented silicon steel sheets with high magnetic conductivity, with inclined joint laminated structure. Section of the core limbs is of multi-class ladder round, with uniform section with that of yoke.

 

Winding:

The winding adopts corrugated oil duct with non-dipping process, bound by shrinkable tape; all windings are of concentric coils; taps of HV winding with corresponding tapping voltage shall be led to the tap switch, and the switch shall be installed on the box cover. Power supply must be cut off first when changing the tapping voltage.

 

Oil tank:

Transformer oil tank is composed of corrugated walls with powder painted surface and reinforced with film. Corrugated cooling fin not only has cooling function, but also has breathing function, the elasticity of corrugated cooling fin make rt adapt to the change of oil volume due to change temperature. So this hermetically sealed transformer does not have oil conservator, which decreases 1 h& height of transformer.

The transformer adopts vacuum oil-injection technology during encapsulation that thoroughly removes the moisture from transformer, and keeps the transformer oil from contacting the air. This is technology also avoid insulation performance reduction or oil aging due to entering of oxygen or moisture, it improves operation reliability of transformer.

 

 

Model

 

 

Technical Parameters

 

Rated Capacity Voltage Combination Vector Group No-load Loss Load Loss No-load Current Impedance Voltage Exterior Size Total Weight
(kVA) High voltage
(kV)
Tap range Low voltage
(kV)
  (W) (75℃)(W) (%) (%) (L*W*H) (kg)
800 35

38.5
±5%
or
±2*2.5%
3.15
6.3
10.5
Yd11 1.23 9.90 1.0 6.5 2140*1320*2120 3040
1000 1.44  12.15 1.0 2400*1330*2170 3410
1250 1.76 14.67 0.9 2470*1350*2190 3890
1600 2.12 17.55 0.8 2550*1375*2250 4620
2000 2.72 19.35 0.7 2700*1400*2300  5345
2500 3.20 20.70 0.6 2520*2300*2365 5960
3150 3.80  24.30 0.56 7.0 2600*2350*2410 6695
4000 4.52 28.80 0.56 2680*2560*2490 8350
5000 5.40 33.03 0.48 2730*2750*2550 9400
6300 6.56 36.90 0.42 7.5 2960*2800*3080 11300
8000 9.00 40.50 0.42 3170*2610*3210 13240
10000 YNd11 10.88 47.70 0.40 3250*3220*3400 16600
12500 12.60 56.70  0.40 8.0 3370*3260*3540 19400
16000 15.20 69.30 0.40 3470*3280*3580 23100
20000 18.00 83.70 0.40 3950*3450*3850 29700
25000 21.28 99.00 0.32 4570*3800*3900 38200
31500 25.28 118.80 0.32 5000*4150*4000 40300

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