Oil Immersed Transformers
Oil Immersed Transformers
Oil-filled distribution transformers for utilities, industrial sites, renewable projects, outdoor networks, pad-mounted systems, and pole-mounted applications.
Oil Immersed Transformers Overview
Oil-filled distribution transformers for utilities, industrial sites, renewable projects, outdoor networks, pad-mounted systems, and pole-mounted applications.
Oil Immersed Transformers can be engineered around electrical parameters, installation conditions, accessories, testing, and delivery requirements.

utility distribution, industrial plants, renewable energy, outdoor substations, replacement projects
kVA or MVA rating, primary and secondary voltage, ONAN or ONAF cooling, tap range and vector group, loss level and impedance, tank/accessory scope
GA drawing, nameplate data, routine test report, oil filling or handling note, packing and lifting photos, certificate references
unclear oil handling, missing accessory scope, non-comparable losses, weak packing plan, late drawing approval
Oil Immersed Transformers Product Lineup
Open the relevant product page by application, voltage class, capacity, installation method, and project standard to review configuration, testing, and enquiry data.
Oil-filled distribution transformers for local grids, factories, commercial buildings, and renewable distribution systems.
Three-phase oil immersed transformers for utility, industrial, and infrastructure distribution projects.
Sealed oil transformers designed to reduce oil contact with air and support lower maintenance operation.
Low no-load-loss transformers for energy-saving distribution networks and long-term operating cost reduction.
Outdoor enclosed pad-mounted transformers for compact distribution sites and public-facing installations.
Pole-mounted transformers for rural distribution, utility expansion, and overhead networks.
Single-phase pad-mounted transformers for residential, commercial, and local distribution networks.
Compact cylindrical oil transformers for single-phase export distribution, overhead networks, and project-specific utility configurations.
Custom oil transformers for special voltage, impedance, accessories, protection, and project standards.
Oil Immersed Transformers: selection, configuration, and project files
Move from the application to the right product page, then confirm Oil Immersed Transformers against electrical data, installation conditions, testing requirements, and delivery documents.
utility distribution, industrial plants, renewable energy, outdoor substations, replacement projects
kVA or MVA rating, primary and secondary voltage, ONAN or ONAF cooling, tap range and vector group, loss level and impedance, tank/accessory scope
GA drawing, nameplate data, routine test report, oil filling or handling note, packing and lifting photos, certificate references
Oil Immersed Transformers Product Lineup & Configuration
Local distribution networks, factories, commercial buildings, communities, and renewable distribution points where medium-voltage power is stepped down for end use. Confirm: kVA or MVA rating, primary and secondary voltage, ONAN or ONAF cooling, tap range and vector group.
Standard three-phase distribution and industrial projects where balanced three-phase loads and outdoor transformer installation are expected. Confirm: three-phase rating, vector group, tap changer, impedance.
Distribution projects that prefer reduced oil contact with air, lower routine maintenance, and sealed-tank operation. Confirm: sealed tank structure, corrugated fin design, oil expansion logic, pressure relief.
Energy-saving distribution networks where no-load loss reduction and long operating hours justify a higher-efficiency core design. Confirm: no-load loss, load loss, core material, noise level.
Public-facing outdoor distribution sites where an enclosed, ground-mounted transformer needs safer access and compact installation. Confirm: cabinet enclosure, HV/LV compartment, fusing/protection, pad foundation.
Rural distribution, overhead utility expansion, remote communities, and lightweight distribution points with pole installation. Confirm: mounting bracket, bushing arrangement, lightning arrester, fuse cutout interface.
Residential, commercial, and local distribution networks requiring single-phase ground-mounted enclosed transformer units. Confirm: single-phase voltage, dead-front or live-front interface, cabinet type, pad dimensions.
Outdoor distribution networks, utility substations, industrial incoming power, renewable step-up points, and projects where oil cooling and long service life are acceptable. Confirm: kVA or MVA rating, primary and secondary voltage, ONAN or ONAF cooling, tap range and vector group.
Special voltage, impedance, accessories, enclosure, protection, climate, or project-standard requirements that do not fit standard catalog models. Confirm: custom voltage, special impedance, accessory list, project standard.
01Define whether the project requires a single unit, package scope, accessories, or control system.
02Confirm capacity, voltage, installation environment, drawings, and technical documents.
03Use the approved technical scope to finalize product configuration, testing, and delivery.