SG 250 kVA 3.3 kV Industrial Isolation Transformer

SG 250 kVA 3.3 kV industrial isolation transformer

Product Profile

Dry-type isolation transformer for medium-voltage industrial systems

Product Applications

Industrial Power Distribution Commercial Buildings Infrastructure Projects Renewable Energy
Request a Quote Reply within 1 business day

Technical Specifications

Parameter Value Unit Notes
power 250 kVA — —
voltage 3300V-1140V&400V — —
material Copper Winding — Database listing; confirm the material and construction in the quoted model datasheet and drawings.
standard IEC — Database reference only; confirm the required standard, edition and model-specific compliance evidence.

Application Scenarios

Industrial Facilities

Power distribution for manufacturing plants, factories, and industrial complexes.

Commercial Buildings

Office buildings, shopping centers, and commercial complexes.

Infrastructure

Public utilities, transportation, and municipal power systems.

Renewable Energy

Solar farms, wind power installations, and energy storage systems.

Solutions

We are more than just an equipment manufacturer; we are dedicated to providing specialized end-to-end solutions for EPC contractors, industrial developers, and public infrastructure projects.

Custom Transformer Engineering

Delivering bespoke designs tailored to specific voltage requirements, extreme climate resilience (for African grids), and high-efficiency industrial upgrades (for the North American market).

Charging Infrastructure Solutions

Providing comprehensive turnkey solutions for charging station construction, deeply integrating highly reliable transformers with intelligent power distribution systems to empower the future of mobility.

Residential Energy Storage Solutions

Combining LiFePO4 batteries, single-phase solar inverters, and integrated backup systems for household solar self-consumption and resilient home power.

Industrial, Commercial, and Infrastructure Hubs

Providing robust power distribution architectures for manufacturing plants, mining operations, and modern urban infrastructure.

From the supply of individual components to complex system integration, we leverage our expert technical support and manufacturing scale to ensure the success of your projects in any environment.

Resolve the listed voltage data

The production string contains 3300 V, 1140 V and 400 V, but it does not identify the input, output, alternative configurations or terminal relationship. Provide the project single-line and require the offered winding diagram to map every listed value.

Define the 250 kVA duty

Confirm whether 250 kVA applies to the complete unit or a particular winding arrangement. State the required current, load type, continuous and peak demand, starting behavior, harmonics and any simultaneous-loading requirement without assuming how the listed voltages share capacity.

Specify the electrical interface

Provide frequency, phase, connection or vector group, neutral, earthing, insulation coordination, taps and shielding needs. The description refers to medium-voltage industrial systems but does not prove suitability for a particular motor, VFD, UPS, rectifier or mining load.

Verify construction and site integration

The production material field lists Copper Winding. Request conductor, winding arrangement, insulation, terminals, impedance by applicable winding pair, cooling, enclosure, dimensions and weight. Add ambient temperature, altitude, ventilation, dust, humidity and clearance constraints.

Set evidence and acceptance requirements

IEC in the database is a reference only. Define the required standard and edition, losses, impedance, temperature-rise basis, dielectric or functional tests, witness points and report scope for the final model and winding configuration.

Related technical resources

Related Products

Frequently Asked Questions

The production string does not establish the input, output, alternative configuration or terminal relationship. Confirm the mapping in the quoted winding diagram and technical schedule.

Do not assume that it does. The quotation must state the rating of each required winding or configuration and any simultaneous-loading limits.

No. It does not establish the input, output, alternative-configuration or terminal relationship. Confirm the actual configuration in the quoted single-line, winding diagram and technical schedule.

Application suitability is not established by the listing. Provide current, starting duty, harmonics, power factor, isolation and shielding requirements for engineering review.

Request the winding and capacity schedule, single-line, nameplate, GA and terminal drawings, impedance, losses, thermal data, test plan and model-matched reports.

Project Support

Need help selecting a transformer, EV charging system, or residential energy storage solution?

Our engineering team can match the right configuration to your operating environment, charging demand, safety requirements, and household energy goals.

Get in Touch