35kV On-Load Tap-Changing Transformer
Standards
GB / IEC 60076
Testing
Routine report
Origin
China
35kV On-Load Tap-Changing Transformers
20000 kVA 35 kV Oil-Immersed Transformer No Excitation
20000KVA 35KV Oil-immersed Transformer for Industrial Power Grid Stabilization and Distribution
- Product type
- 35kV On-Load Tap-Changing Transformer
- Rated capacity
- 20,000 kVA
- Voltage class
- 35 kV
- Cooling
- ONAN / ONAF
- Tap range
- Off-circuit or on-load, project-specific
- Winding
- Copper or aluminium (project-specific)
Final ratings, losses, impedance and dimensions are confirmed on the approved datasheet. Website values are for family selection.
- Routine test report with the unit
- English GA drawing and O&M manual
- Copper or aluminium winding options
- 50 Hz / 60 Hz and harsh-site options
Product overview
20000KVA 35KV Oil-immersed Transformer for Industrial Power Grid Stabilization and Distribution
In the current high-voltage power distribution industry, large industrial and mining power plants commonly suffer from unstable voltage regulation and high equipment losses under heavy loads. Many enterprises face challenges such as poor adaptability of traditional Power Distribution Equipment , high operation and maintenance costs, and inability to meet large-capacity power supply demands. To address these issues, this 20000KVA 35KV oil-immersed transformer utilizes mature non-excitation voltage regulation technology and a fully sealed oil-immersed structure design, precisely adapting to large-capacity high-voltage power distribution scenarios. The equipment can stabilize grid voltage, reduce operating energy consumption, and is compatible with various power supporting equipment, significantly improving the power supply stability and security of industrial and mining power plants, photovoltaic power plants, and municipal power grids, effectively reducing equipment failure downtime and lowering long-term operating costs. In the construction of a complete power system, this equipment can be flexibly combined with Dry Type Transformers and Box Type Substations to adapt to the power distribution layout requirements of different sites. It can also be used with High And Low Voltage Switchgear and Electric Power Converters to complete the construction of a complete power transmission and voltage stabilization system. It is widely applicable to the expansion and renovation projects of conventional industrial and mining substations and Combined Photovoltaic Substations , making it a core main equipment for high-voltage, high-capacity power distribution scenarios.
Design features
What the design is built around
Stable and Reliable Voltage Stabilization Performance
Adopting a non-excitation manual voltage regulation structure, it boasts high voltage regulation accuracy and a low failure rate. It can be adapted to 35KV high voltage and 20000KVA high-capacity load conditions for extended periods. It exhibits excellent overload and impact resistance, meeting the continuous uninterrupted power supply requirements of industry.
Practical Tips
Voltage regulation operations must be performed under complete power-off conditions. Live voltage regulation is strictly prohibited to avoid equipment damage and safety accidents. Regularly check the insulating oil condition and clean the equipment's heat dissipation dust to ensure heat dissipation efficiency and operational stability.
Frequently Asked Questions (FAQ)
Q1
What are the main application scenarios for this equipment?
A1
This product is a 35KV high-capacity high-voltage power distribution device, mainly used in large factories, industrial parks, municipal power grids, photovoltaic integrated substations, etc. It can be paired with various power supporting equipment to complete power transformation, voltage stabilization, and power distribution work, and is suitable for large-scale power transmission and power supply expansion projects.
Typical specification
Specifications to confirm on the datasheet
| Product type | 35kV On-Load Tap-Changing Transformer |
|---|---|
| Rated capacity | 20,000 kVA |
| Voltage class | 35 kV |
| Cooling | ONAN / ONAF |
| Tap range | Off-circuit or on-load, project-specific |
| Winding | Copper or aluminium (project-specific) |
| Standards | GB 1094.1, GB/T 6451, IEC 60076 |
| Testing | Routine tests plus type and special tests on request |
The table is a family-level starting point. The approved datasheet fixes the guaranteed values, drawing dimensions and test plan for the specific order.
Typical applications
- 35 kV industrial main substations
- Utility distribution with voltage regulation
- Steel, cement and chemical plants
- Renewable-energy step-up
- Mining and oil-gas facilities
Confirm before ordering
- Rated capacity, voltage ratio and tap range
- Impedance, fault level and parallel operation
- Ambient temperature, altitude and enclosure
- Winding material, losses and efficiency class
- Terminations, protection and monitoring
- Tests, inspection, packing and shipping limits
Buyer questions
FAQ for 20000 kVA 35 kV Oil-Immersed Transformer No Excitation
What is 20000 kVA 35 kV Oil-Immersed Transformer No Excitation best used for?
What is the typical lead time for 20000 kVA 35 kV Oil-Immersed Transformer No Excitation?
Which standards and tests are supplied?
Can the transformer be customised for 60 Hz or a hot climate?
How do I choose between copper and aluminium windings?
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