Category: Oil-Immersed Power Transformer
Phase: Three-Phase
Primary Voltage Ratings: Customized according to project specifications
Secondary Voltage Ratings: Customized according to project specifications
Rated Capacity: Project-specific; subject to the confirmed technical specification
Rated Frequency: 50Hz / 60Hz, specified at the design stage
Call to Action: Request a Technical Quotation

Xingyue Power provides customized high-voltage oil-immersed power transformers for 110–158kV-class applications. Designed for utility substations, regional power networks, industrial power systems and electrical infrastructure projects, these transformers can be configured according to specific project requirements.
The transformer design can be customized based on the required primary and secondary voltage ratings, rated capacity, operating frequency, winding configuration, voltage regulation requirements and installation conditions.
Depending on the confirmed design and application requirements, our engineering team evaluates the appropriate electrical parameters, insulation coordination, cooling arrangement and testing scope for each project.
Whether you are planning a new substation, upgrading existing electrical infrastructure or sourcing a customized transformer for an EPC project, please submit your technical specifications for evaluation.
110–158kV-Class Applications: Customized high-voltage transformer solutions, subject to confirmation of the required voltage rating and design configuration.
Customized Capacity: Rated capacity determined according to project specifications and verified product capabilities.
Flexible Voltage Configuration: Primary and secondary winding voltages specified according to the electrical system requirements.
50Hz / 60Hz Design: Designed for the specified operating frequency; each configuration requires appropriate engineering verification.
Customized Electrical Parameters: Vector group, impedance, tapping range and insulation levels determined according to the approved technical specification.
Testing and Quality Documentation: Applicable routine tests and other required testing documentation provided according to the agreed project scope.
Project-Oriented Engineering: Solutions for utility substations, industrial power systems, grid upgrades and other applicable power infrastructure projects.
| Parameter | Specification |
|---|---|
| Transformer Type | Three-phase oil-immersed power transformer |
| Rated Capacity | According to confirmed product range and project requirements |
| HV Winding Voltage | Project-specific rated voltage, subject to engineering confirmation |
| LV Winding Voltage | Customized according to system requirements |
| Frequency | 50Hz or 60Hz, separately designed as specified |
| Cooling | Available cooling arrangements according to model and project requirements |
| Tap Changer | On-load or off-circuit tap changer, where applicable |
| Vector Group | Specified according to winding configuration and system requirements |
| Short-Circuit Impedance | According to the approved technical specification |
| Insulation Level | Determined according to applicable standards and insulation coordination |
| Applicable Standards | Relevant IEC 60076 series or IEEE C57 standards, as specified for the project |
| Testing | Routine tests and applicable type/special tests, with documentation according to the agreed scope |
| Environmental Conditions | Designed for the specified ambient temperature, altitude and installation environment |
Voltage ratings, capacity, insulation levels, cooling arrangements, testing scope and compliance documentation are confirmed during technical review. Availability of specific configurations is subject to the manufacturer's verified engineering and manufacturing capability.
Transformer design and testing requirements are determined according to the applicable IEC 60076 series, relevant national standards and project-specific technical specifications.
Routine tests are carried out according to the applicable requirements for the supplied transformer. Type tests, special tests and independent third-party testing can be discussed according to the selected design, existing test documentation and project requirements.
The applicable standards, test scope and required documentation should be confirmed before the final technical proposal is issued.
To help us evaluate your project, please provide the following information:
Required primary and secondary winding voltages
Rated capacity in MVA
Operating frequency: 50Hz or 60Hz
Vector group and short-circuit impedance
Tap changer type and required tapping range
Applicable standards and insulation requirements
Project country and installation conditions
Required quantity and delivery schedule
You may also upload your technical specification or RFQ document for review.
Contact Xingyue Power to discuss your high-voltage oil-immersed power transformer requirements and request a technical and commercial proposal.