Junengda Electrical Co., Ltd. is a leading high-tech enterprise specializing in transformer products. As a designated supplier for Fortune 500 companies, our company integrates research and development, manufacturing, sales, and service to provide customized transformer solutions. This article provides an in-depth look at 38 types of distribution transformers used across a wide range of applications.
Table of Contents
- Introduction to Transformers
- Mainstream Transformer Types
- Specialized Transformers
- Key Applications and Industries
- Why Choose Junengda Electrical Co., Ltd.
- Summary Table
Introduction to Transformers
Transformers play a vital role in the transmission and distribution of electrical energy. They step up or step down voltage levels, ensuring efficient power delivery across industrial, commercial, and residential sectors. At Junengda Electrical Co., Ltd., we offer a complete portfolio of 38 transformer types to meet various power demands.
Mainstream Transformer Types (1–18)
These are commonly used in power transmission, substations, and commercial infrastructure.
1. Power Transformer (电力变压器)
Used in transmission networks to transfer electrical energy at high voltages. Designed for efficiency and low losses over long distances.
2. OLTC/NLTC Transformer (有/无载调压电力变压器)
- OLTC: On-load tap changers allow voltage adjustment without interrupting service.
- NLTC: No-load tap changers require shutdown for tap changes.
3. Distribution Transformer (配电变压器)
Supplies voltage to end-users by stepping down high-voltage electricity for local distribution networks.
4. Autotransformer (自耦变压器)
Features a single winding that acts as both primary and secondary, providing economic and compact solutions.
5. Interconnecting Transformer (联络变压器)
Connects different sections of a power grid or substations operating at similar voltage levels.
6. Step-up / Step-down Transformer (升/降压变压器)
- Step-up: Increases voltage for efficient power transmission.
- Step-down: Decreases voltage for end-user delivery.
7. Generator Transformer (发电机变压器)
Connects power generators to the grid by stepping up voltage to transmission levels.
8. Substation Transformer (电站用变压器)
Installed in power substations to manage grid voltage levels for various outputs.
9. Converter Transformer (变流变压器)
Used in HVDC systems and renewable energy setups like solar or wind farms.
10. Split Winding Transformer (分裂变压器)
Allows better voltage regulation and load balancing by using split windings.
11. Power Plant Transformer (厂用变压器)
Supplies electricity to internal systems of a power plant.
12. Single-phase Transformer (单相变压器)
Ideal for residential and light commercial applications.
13. Three-phase Transformer (三相变压器)
Standard choice for industrial and large commercial uses.
14. Oil-immersed Transformer (油浸式变压器)
Uses oil for insulation and cooling; highly durable and efficient.
15. Noninflammable Medium Transformer (浸难燃油变压器)
Enhanced safety with flame-retardant oils for fire-sensitive environments.
16. Dry-type Transformer (干式变压器)
Air-cooled, suitable for indoor or environmentally sensitive locations.
17. Resin-casting Type Transformer (树脂浇注式变压器)
Fully encapsulated for enhanced moisture resistance and insulation.
18. H-Class Insulation Transformer (H级绝缘变压器)
Operates at higher temperatures with excellent insulation performance.
Specialized Transformer Types (19–38)
These are tailored for specific industries or applications, often with customized specifications.
19. Gas Insulated Transformer (气体绝缘变压器)
Compact design, ideal for limited-space or underground installations.
20. Three-phase Banks with Single-phase Transformers (单相变压器组成的三相组合)
Flexibility in maintenance and load handling.
21. Furnace Transformer (电炉变压器)
Handles high currents and thermal shocks for arc furnaces.
22. Rectifier Transformer (整流变压器)
Converts AC to DC, used in electrolysis, plating, and traction systems.
23. Traction Transformer (列车牵引变压器)
Supplies power to electric trains and railway systems.
24. Mining Transformer (矿用变压器)
Rugged designs for harsh underground or mining environments.
25. Flame-proof Transformer (防爆变压器)
Explosion-resistant, ideal for oil, gas, and chemical industries.
26. Isolation Transformer (隔离变压器)
Protects circuits from electrical noise and surges.
27. Testing Transformer (试验变压器)
Used for high-voltage testing in research and manufacturing facilities.
28. Filament Transformer (灯丝变压器)
Provides low voltage for heating elements in lighting and vacuum tubes.
29. Welding Transformer (电焊变压器)
Supplies stable low-voltage current for arc welding operations.
30. Brazing Transformer (钎焊变压器)
Similar to welding transformers but for brazing processes.
31. Marine Transformer (船用变压器)
Corrosion-resistant and compact design for shipboard use.
32. Starting Autotransformer (启动自耦变压器)
Reduces startup current in large motors, prolonging motor life.
33. Cascade Testing Transformer (串级式试验变压器)
Used in high-voltage labs for insulation testing.
34. Three-coil Transformer (三线圈变压器)
Enables voltage control or multiple outputs from a single unit.
35. Booster Transformer (增压变压器)
Provides voltage boost to overcome drop in long-distance distribution.
36. Movable Substation (移动式变压器)
Portable transformers for emergency or temporary power supply.
37. Complete Substation (成套变电站)
Pre-assembled units for quick deployment in remote or urgent applications.
38. Self-Protected Transformer (全自动保护单相变压器)
Integrated protection features such as overload and short-circuit safeguards.
Key Applications and Industries
- Power Generation & Transmission: Power transformers, generator transformers, OLTC/NLTC units
- Industrial Manufacturing: Furnace, rectifier, and welding transformers
- Transportation: Traction and marine transformers
- Utilities & Substations: Step-down transformers, substations, and movable substations
- Special Environments: Flame-proof, gas-insulated, and mining transformers
Why Choose Junengda Electrical Co., Ltd.
As a designated supplier for Fortune 500 enterprises, Junengda stands out due to our:
- State-of-the-art facilities with advanced production and testing equipment
- Experienced R&D team and senior engineers
- Strict quality control systems for every transformer type
- Customized transformer solutions tailored to specific industry requirements
- Robust after-sales service and technical support
Summary Table
| Category | Transformer Types | Main Applications |
|---|---|---|
| Mainstream Transformers | 1–18 | Power grids, substations, commercial and industrial distribution |
| Specialized Transformers | 19–38 | Railways, mining, marine, labs, emergency systems |
| Technology Options | Oil-immersed, dry-type, resin-cast, H-class, OLTC/NLTC | Varies by environment and insulation requirements |
| Customization | Available for all models | Project-specific electrical needs and configurations |
For more information or to request a quote, please contact Junengda Electrical Co., Ltd. — your trusted partner for innovative transformer solutions.