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HomeProductsTransformerOil Immersed TransformerSH15‑M Amorphous Alloy Oil‑Immersed Distribution Transformer
Energy-Efficient Distribution Transformer with Ultra-Low No-Load Loss

SH15‑M Amorphous Alloy Oil‑Immersed Distribution Transformer

SH15-M series amorphous alloy oil-immersed distribution transformers are designed for energy-efficient power distribution in utility networks, renewable energy projects and applications with long-term light-load operation. The amorphous alloy core helps achieve ultra-low no-load loss, while the fully sealed corrugated tank prevents air and moisture ingress for reliable, maintenance-free operation.

Key Specifications

Rated Capacity
30–2,500 kVA

High Voltage
10 kV

Low Voltage
0.4 kV

Vector Group
Dyn11

Tap Range
±2 × 2.5%

Winding
Copper Standard / Aluminum Optional
Product Overview

The SH15-M series is a fully sealed oil-immersed distribution transformer featuring an amorphous alloy core designed for high energy efficiency.

Amorphous alloy has an ultra-thin domain structure, low magnetizing power and high electrical resistivity. Compared with conventional silicon-steel transformers, the no-load loss of the SH15-M series can be reduced by up to 70%, making it particularly suitable for applications where transformers operate under light-load conditions for extended periods.

The fully sealed corrugated tank helps prevent air and moisture from entering the transformer, reducing oil degradation and supporting maintenance-free operation. The series is suitable for power grid upgrading, renewable energy projects and continuous light-load distribution applications.

Key Features

01. Amorphous Alloy Core

The amorphous alloy core is designed with low magnetizing power and high resistivity to achieve ultra-low no-load loss.

02. Up to 70% Lower No-Load Loss

Compared with conventional silicon-steel transformers, the no-load loss can be reduced by up to 70%, according to the current product specification.

03. Fully Sealed Construction

The fully sealed oil-immersed structure helps prevent air and moisture ingress and reduces oil degradation.

04. Maintenance-Free Operation

The sealed tank design helps reduce routine maintenance requirements during normal operation.

05. Flexible Configuration

Capacity and voltage can be configured according to distribution grid requirements.

06. Copper or Aluminum Windings

Copper windings are supplied as standard, with aluminum winding options available according to product requirements.

Technical Specifications

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

SH15-M-30

30

Dyn11

10

±2x2.5%

0.4

33

630

1.2

4

SH15-M-50

50

43

910

1.04

SH15-M-63

63

50

1090

0.96

SH15-M-80

80

60

1310

0.96

SH15-M-100

100

75

1580

0.88

SH15-M-125

125

85

1890

0.88

SH15-M-160

160

100

2310

0.8

SH15-M-200

200

120

2730

0.8

SH15-M-250

250

140

3200

0.72

SH15-M-315

315

170

3830

0.72

SH15-M-400

400

200

4520

0.64

SH15-M-500

500

240

5410

0.64

SH15-M-630

630

320

6200

0.48

4.5

SH15-M-800

800

380

7500

0.48

SH15-M-1000

1000

450

10300

0.48

SH15-M-1250

1250

530

12000

0.4

SH15-M-1600

1600

630

14500

0.4

SH15-M-2000

2000

720

18300

0.32

5

SH15-M-2500

2500

865

21200

0.32

 

Model Designation

Meaning of Model Number

S

H

(B)

15

-

M

-

□

/

□

 

Three-phase

Amorphous alloy core

Low voltage foil wound coil

Performance level code

 

Fully sealed

 

Rated capacity kVA

 

 Voltage class kV

Energy-Saving Performance

The amorphous alloy core is the key energy-saving feature of the SH15-M series. Its low magnetizing power and high resistivity contribute to significantly reduced no-load losses compared with conventional silicon-steel transformers.

According to the current product information, no-load loss can be reduced by up to 70%, making the transformer particularly suitable for distribution networks where the transformer remains energized under light-load conditions for extended periods.

Compared with conventional silicon-steel transformers

Applications

Power Grid Upgrading

Suitable for distribution network reconstruction and energy-efficiency improvement projects.

Renewable Energy

Applicable to new-energy power distribution projects.

Light-Load Distribution Networks

Particularly suitable for applications where transformers operate at relatively low load levels for extended periods.

Urban & Rural Distribution

Suitable for local distribution networks and infrastructure power supply.

FAQ

 

What is an amorphous alloy transformer?

An amorphous alloy transformer uses amorphous metal core material designed to reduce magnetizing power and no-load losses.

How much can the no-load loss be reduced?

According to the current SH15-M product information, no-load loss can be reduced by up to 70% compared with conventional silicon-steel transformers.

What capacities are available?

The current SH15-M series covers rated capacities from 30 kVA to 2,500 kVA.

What is the rated voltage?

The listed models use 10 kV high voltage and 0.4 kV low voltage.

Is the transformer fully sealed?

Yes. The SH15-M series uses a fully sealed oil-immersed corrugated tank.

Is the transformer maintenance-free?

The fully sealed design is intended to support maintenance-free operation under normal service conditions.

Are aluminum windings available?

Yes. Copper windings are standard, while aluminum windings are optional according to product requirements.

Where is the SH15-M suitable for use?

It is particularly suitable for power grid reconstruction, renewable energy projects and distribution networks with continuous light-load operation.

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