| Parameter |
Unit |
Value |
| Product Model |
– |
SSZ-120000/110 |
| Rated Capacity |
kVA |
120,000 |
| Rated Voltage Ratio |
kV |
115±8×1.25%/37/10.5 |
| Short-Circuit Impedance |
% |
10.5 (HV–LV) |
| Rated Frequency |
Hz |
50 |
| Vector Group |
– |
YN, yn0+d |
| Insulation Level |
kV |
HV: LI/AC 480/200; LV: LI/AC 75/35 |
| Cooling Method |
– |
ONAN (or as designed, typically oil-immersed self-cooled/forced-air cooled) |
| No-Load Loss |
kW |
≤47.8 |
| Load Loss |
kW |
≤338 |
| Temperature Rise Limit |
K |
Top oil: 55; Winding hot-spot: 65 (per GB/T 1094.2) |
| Noise (Sound Pressure Level) |
dB(A) |
According to actual design (better than standard requirements) |
| Energy Efficiency Class |
– |
Level 2 |
Designed for Reliable High-Voltage Power Transmission
A Силовой трансформатор 110 кВ is normally installed between high-voltage transmission networks and lower-voltage distribution systems. Reliability, insulation performance, temperature control and short-circuit withstand capability are therefore important considerations when selecting a transformer.
Liye Electric designs its 110 kV transformer solutions around actual grid and operating requirements rather than offering only fixed standard configurations.
● Low no-load and load loss design to improve operating efficiency
● Optimized insulation structure for high-voltage applications
● Strong mechanical construction and short-circuit resistance
● Low partial-discharge design
● Controlled winding and core manufacturing processes
● Reliable cooling design for continuous operation
● Customized electrical parameters according to project requirements
110 kV Oil Immersed Transformer for Substation Projects
The 110 kV oil immersed transformer uses insulating oil for electrical insulation and heat dissipation and is suitable for large-capacity, continuous-duty power applications.
Depending on the project, Liye can evaluate different cooling arrangements, winding configurations, voltage ratios and transformer accessories. This makes the 110 kV substation transformer suitable for both new substations and transformer replacement or grid-upgrade projects.
For EPC contractors, utilities and industrial project owners, engineering compatibility is often more important than purchasing a standard catalog model. Liye therefore supports project-specific technical evaluation before production.
Applications of Our 110 kV Transformer
Liye 110kV power transformers are designed for high-voltage transmission and distribution applications such as:
● Utility substations
● Power transmission and distribution networks
● Large industrial plants
● Mining and heavy industrial facilities
● Photovoltaic power stations
● Wind power projects
● Energy storage power stations
● Hydrogen production facilities
● Factory main substations
● Infrastructure and large energy projects
For applications requiring multiple secondary voltage levels, Liye can also evaluate three-winding 110 kV transformer configurations according to the system design.
Custom 110 kV Power Transformer Engineering
Different substations have different electrical and environmental conditions. Liye Electric can manufacture a customized 110 kV transformer based on your project specifications.
Available engineering options include:
● Rated capacity
● HV and LV voltage
● Three-winding or two-winding configuration
● Tap-changing range
● Vector group
● Short-circuit impedance
● ONAN, ONAF or project-specific cooling requirements
● Insulation level
● Temperature-rise limits
● Noise requirements
● Transformer monitoring and protection accessories
● Outdoor operating environment
● Altitude and ambient temperature requirements
If you are sourcing a three phase 110 kV transformer, please provide your single-line diagram or transformer technical specification so that our engineering team can evaluate the required configuration.
Why Choose Liye as Your 110 kV Transformer Manufacturer?
Liye Electric has established manufacturing capabilities covering insulation components, windings, transformer cores, oil tanks, assembly and factory testing.
Our transformer manufacturing facility supports high-voltage transformer production up to 750 kV, allowing our engineering and production teams to apply high-voltage manufacturing experience to every 110 kV transformer project.
Key capabilities include:
● In-house transformer R&D and engineering
● Dedicated winding manufacturing center
● CNC silicon steel cutting and core manufacturing
● In-house transformer tank fabrication
● Vapor phase drying equipment
● Large transformer assembly facilities
● High-voltage transformer testing center
● Project-specific transformer design and technical support
For overseas EPC companies, utilities, distributors and industrial power projects looking for a reliable 110kV transformer supplier, Liye provides both manufacturing capacity and engineering support rather than simply supplying standardized equipment.
110 kV Transformer FAQ
What is a 110 kV transformer?
A 110 kV transformer is a high-voltage power transformer used to convert electrical power between a 110 kV-class transmission network and lower voltage systems such as medium-voltage distribution networks. It is commonly installed in substations, industrial power systems and renewable energy projects.
What capacity can a 110 kV transformer have?
The capacity depends on the application and power-system design. This page shows a 120 MVA 110 kV transformer, model SSZ-120000/110. Other capacities can be evaluated according to project requirements.
Can Liye customize the voltage ratio of a 110kV power transformer?
Yes. The voltage ratio, tap range, winding configuration, impedance, vector group and other electrical parameters can be designed according to the customer’s system requirements.
Is this a three phase 110 kV transformer?
Yes. High-voltage utility and industrial applications typically use three-phase transformer configurations. Liye can evaluate two-winding and three-winding designs according to the required electrical system.
How do I request a quotation for a 110 kV power transformer?
Please send us your required capacity, HV/LV voltage, frequency, vector group, impedance, cooling method, applicable standard, operating environment and other technical requirements. If available, you can also provide your transformer specification or single-line diagram.
Request a Quote for Your 110 kV Transformer
Looking for a 110 kV power transformer manufacturer for a new substation, industrial power project or grid expansion?
Send Liye Electric your transformer specification, required MVA rating and voltage ratio. Our engineering team can evaluate the electrical configuration and provide a suitable Силовой трансформатор 110 кВ solution for your project.
