Transformers

01 / 05

35 kV Oil-Immersed Power Transformer

35kV油浸式电力变压器

Technical parameter	Specification
Product model	S(Z)-35 series
Voltage ratio	35 kV class (customizable)
Rated frequency	50 / 60 Hz
Connection group	Dyn11 / Yyn0 / Yd11
Tap range	±2 × 2.5%, customizable on request
Application type	Outdoor
Phase	3-phase
Altitude	≤ 1000 m (high-altitude customization available)
Transformer oil	25# / 45#
Ambient temperature	-40 °C to +50 °C

Product features

Excellent heat dissipation and strong overload capacity
Significant cost advantage at large capacity, outstanding cost-effectiveness
Strong low-temperature applicability, high aging resistance of insulation materials
Stable operation in high humidity, coastal salt fog and high-altitude areas
Fully sealed, leak-free design: maintenance-free under normal operating conditions, designed service life over 25 years

Scope of application

SubstationRenewable energyIndustrial & miningCommercial & industrial distribution

Customization is available for voltage class, capacity, protection rating, enclosure type, colour and monitoring functions. Tell us the site conditions and we will engineer the unit accordingly.

02 / 05

10 kV Oil-Immersed Distribution Transformer

10kV油浸式配电变压器

Technical parameter	Specification
Product model	S11 – S22-M-□/0.4 series
Capacity	30 – 2500 kVA (standard, customizable on request)
Voltage level	6.3 (6) / 10 / 10.5 kV
Rated frequency	50 / 60 Hz
Connection group	Dyn11 / Yyn0
Tap range	±5%, ±2 × 2.5%, (+3/-1) × 2.5%
Application type	Outdoor
Core material & type	Silicon steel sheet, planar / three-dimensional wound core
Altitude	≤ 1000 m (high-altitude customization available)
Transformer oil	25# / 45#
Ambient temperature	-40 °C to +50 °C

Product features

Compact structure, small footprint, safe and reliable operation
High efficiency, overall efficiency above 99%
Strong low-temperature applicability, high aging resistance of insulation
Stable operation in high humidity, coastal salt fog and high-altitude areas
Fully sealed and leak-free, designed service life over 25 years

Scope of application

Municipal power gridCommercial & industrial power distributionIndustrial & mining enterprisesRenewable energy auxiliary projects

Customization is available for voltage class, capacity, protection rating, enclosure type, colour and monitoring functions. Tell us the site conditions and we will engineer the unit accordingly.

03 / 05

10 kV Fully Sealed Three-Dimensional Rolled-Core Distribution Transformer

10kV全密封立体卷铁心配电变压器

Technical parameter	Specification
Product model	S20 – S22-MRL-□/0.4 series
Capacity	30 – 2500 kVA (standard, customizable on request)
Voltage level	6.3 (6) / 10 / 10.5 kV
Rated frequency	50 / 60 Hz
Connection group	Dyn11 / Yyn0
Core material & type	Silicon steel sheet, three-dimensional wound core
Application type	Outdoor
Altitude	≤ 1000 m (high-altitude customization available)

Product features

Compact structure, small footprint, safe and reliable operation
High efficiency, overall efficiency above 99%
Low no-load loss thanks to the three-dimensional wound core
Stable operation in humid, salt-fog and high-altitude environments

Scope of application

Municipal power gridCommercial & industrial power distributionIndustrial & mining enterprisesRenewable energy auxiliary projects

Customization is available for voltage class, capacity, protection rating, enclosure type, colour and monitoring functions. Tell us the site conditions and we will engineer the unit accordingly.

04 / 05

Amorphous Alloy Iron Core Distribution Transformer

非晶合金铁心配电变压器

Technical parameter	Specification
Product model	SBH15 – SBH25-M-□/0.4 series
Capacity	30 – 2500 kVA
Voltage level	6.3 (6) / 10 / 10.5 kV
Rated frequency	50 / 60 Hz
Connection group	Dyn11 / Yyn0
Tap range	±5%, ±2 × 2.5%, (+3/-1) × 2.5%
Core material	Amorphous alloy, planar or three-dimensional wound core
Altitude	≤ 1000 m (high-altitude customization available)

Product features

Very low no-load loss and no-load current, meets GB 20052-2024 energy efficiency standards
Safe and reliable, excellent heat dissipation and moisture resistance
High mechanical and dielectric strength, robust short-circuit withstand
Flame retardant, moisture proof and environmentally friendly

Scope of application

Municipal power gridCommercial & industrial distributionIndustrial & mining enterprisesRenewable energy projects

Customization is available for voltage class, capacity, protection rating, enclosure type, colour and monitoring functions. Tell us the site conditions and we will engineer the unit accordingly.

05 / 05

Dry-Type Transformer

干式变压器

Technical parameter	Specification
Product model	SC(B)12 / SC(B)13 / SC(B)14 / SC(B)18 series
Capacity range	30 – 10,000 kVA
Rated frequency	50 / 60 Hz
Connection group	Dyn11 / Yd11 or other
Tap range	±2 × 2.5% (customizable on request)
Phase	3-phase
Short-circuit impedance	6% or other
Insulation class	Class F or Class H
Cooling method	AN / AF
Protection rating	IP00, IP2X, IP3X, IP4X (etc.)

Product features

Compact structure, small footprint, safe and reliable operation
High efficiency, overall efficiency above 99%
Strong low-temperature applicability, high aging resistance of insulation
Flame retardant and explosion proof, no environmental pollution
Optional intelligent monitoring system for real-time status tracking and remote control

Scope of application

High-rise buildingsCommercial centres & theatresPorts, stations and airportsIndustrial & mining enterprises

Customization is available for voltage class, capacity, protection rating, enclosure type, colour and monitoring functions. Tell us the site conditions and we will engineer the unit accordingly.

Transformers range

35 kV Oil-Immersed Power Transformer

10 kV Oil-Immersed Distribution Transformer

10 kV Fully Sealed Three-Dimensional Rolled-Core Distribution Transformer

Amorphous Alloy Iron Core Distribution Transformer

Dry-Type Transformer

Explore the rest of the portfolio

Need a specific configuration?