S20 35 kV Oil-Immersed Electrical Transformer

S20 35 kV Oil-Immersed Electrical Transformer

Product Profile

High-performance oil-immersed transformer for distribution networks

Product Applications

Industrial Power Distribution Commercial Buildings Infrastructure Projects Renewable Energy
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Technical Specifications

Parameter Value Unit Notes
power Custom — —
voltage 35KV — —
material Copper/Aluminum — Database listing; confirm the material and construction in the quoted model datasheet and drawings.
standard IEC 60076 — 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.

Define the 35 kV system duty

Start with the system nominal voltage, highest voltage for equipment, insulation level, primary and secondary voltage, frequency, phase, vector group, neutral arrangement and fault level. A 35 kV label does not define the complete electrical interface. Share the utility specification and single-line diagram so the offered transformer can be checked against the actual network.

Confirm capacity and load profile

The current product record lists capacity as custom and does not publish a verified kVA range. Provide peak demand, expected loading, motor or rectifier loads, renewable generation, overload duty and future expansion. The selected capacity and thermal margin should be supported by the quotation, technical schedule and approved drawings.

Select winding and construction details

The database material field lists Copper/Aluminum. This does not prove that both conductor or winding materials are selectable for every configuration. The quoted model documents must state the actual winding material, conductor design, tank arrangement, oil specification, radiator layout and terminal arrangement. Do not treat the database field or a generic oil-immersed description as proof of a particular construction.

Compare losses, cooling and accessories

Request model-specific no-load loss, load loss, impedance, temperature-rise basis, noise and cooling method. Also define bushings, tap arrangement, indicators, pressure-relief devices, cable boxes, marshalling requirements and protection interfaces. Guaranteed figures belong in the approved technical schedule and agreed test plan.

Review environment and installation

Declare indoor or outdoor location, ambient temperature, altitude, humidity, dust, coastal exposure, seismic requirements where applicable, foundation limits and cable approach. Site conditions can change insulation coordination, corrosion protection, thermal design and accessory selection.

Set the test and document scope

The database includes an IEC 60076 reference, but this is not evidence that every S20 configuration is certified or compliant. State the required standard edition, routine, type or special tests, witness points and report list. Compliance wording should be used only after the exact model and documents are reviewed.

Prepare the quotation package

Send the required capacity, voltage ratio, frequency, vector group, impedance, loss limits, cooling, winding preference, taps, accessories, environment, tests, quantity and destination. LONTEN can then confirm which configuration and supporting documents are available for technical review.

Related product and project resources

Related Products

Frequently Asked Questions

The current page does not publish a verified capacity range. Submit the required kVA or MVA, load profile and system data so the available configuration can be confirmed in the quotation and technical schedule.

The database material field lists Copper/Aluminum, but it does not confirm which conductor or winding material applies or whether both are selectable. The quoted model and approved documents must state the actual material and construction.

The product database contains an IEC 60076 reference, but no blanket compliance statement should be made. Request the exact standard edition, model, report number and covered tests before treating compliance as confirmed.

Ask for model-specific no-load loss, load loss, temperature-rise basis and cooling method. These values are not established by the category name and should be verified through the technical schedule and agreed tests.

Provide capacity, voltages, frequency, vector group, impedance, taps, loss limits, winding preference, environment, accessories, tests, quantity, destination and the single-line diagram when available.

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.

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