Products
Products

S20 Oil-Immersed Transformer

Features :
Customizable
Voltage adjustment tap
Stainless steel hardware
High-grade silicon-steel core
Copper or aluminum windings available
Low loss, low noise, low partial discharge, high efficiency, high reliability
Main Overview:

The GB20052-2024 standard energy-saving product, energy efficiency level 2 oil-immersed transformer, is a product independently developed on the basis of the original model. Through the research and application of new materials and new processes, combined with independent innovation and technology introduction, and by optimizing and innovatively designing the core and coil structures, it achieves the purpose of reducing no-load loss and noise.

The use of high-permeability cold-rolled silicon steel sheet effectively reduces no-load loss.

The corrugated tank is equipped with a pressure release valve to isolate air, delay oil degradation, and achieve true maintenance-free operation.

The corrugated wall integrates three functions (cooling / breathing / expansion) to adapt to oil volume changes. The vacuum-annealed core is epoxy-cured, with a design life of up to 30 years.

The noise level is reduced by an average of 20% compared to the current national standard JB/T10088-2016. The product's performance level reaches the domestic advanced level.

Meaning of Model Number:

Meaning of Model Number

S

M

(B)

20

-

/

-

NX2

 

Three-phase

Fully sealed

For capacity of 400kVA and above, low-voltage foil wound coils can be used.

Performance level code

 

Rated capacity kVA

 

 Voltage class kV

 

Energy efficiency class

Performance parameters of S20-type 10kV series products:

Model

Rated capacity

(kVA)

Vector group

Voltage combination(kV)

No-load loss

(W)

Dy Load loss(W)75℃

(A)

No-load current

(%)

Impedance voltage

(%)

High voltage

Tapping range

Low voltage

S20-M-30

30

Dyn11

10

±2x2.5%

0.4

70

505

1.2

4

S20-M-50

50

90

730

1.04

S20-M-63

63

100

870

0.96

S20-M-80

80

115

1050

0.96

S20-M-100

100

135

1265

0.88

S20-M-125

125

150

1510

0.88

S20-M-160

160

180

1850

0.8

S20-M-200

200

215

2185

0.8

S20-M-250

250

260

2560

0.72

S20-M-315

315

305

3065

0.72

S20-M-400

400

370

3615

0.64

S20-M-500

500

430

4330

0.64

S20-M-630

630

510

4960

0.48

4.5

S20-M-800

800

630

6000

0.48

S20-M-1000

1000

745

8240

0.48

S20-M-1250

1250

870

9600

0.4

S20-M-1600

1600

1050

11600

0.4

S20-M-2000

2000

1225

14640

0.32

5

S20-M-2500

2500

1440

16960

0.32

 

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