The ZHENGXI Adjustable Manual Voltage Regulator Transformer is a high-performance, manually adjustable autotransformer designed for precise voltage control. This single-phase transformer features a toroidal coil and a carbon brush, allowing smooth and distortion-free voltage adjustments up to 0-250V AC output.
With its compact size, high efficiency (95%), and stable performance, this transformer is widely used in industrial, laboratory, and household applications requiring precise voltage regulation. It is built with durable components to ensure reliable long-term operation.
Key Features
- Adjustable Voltage: Smooth regulation from 0V to 250V AC.
- High Efficiency: Maintains 95% efficiency, reducing energy loss.
- Stable Performance: Provides distortion-free voltage output.
- Durable Construction: Reliable and long-lasting design.
- Compact & Lightweight: Easy to install and transport.
- User-Friendly Interface: Equipped with Meter/Digital Display for easy monitoring.
- OEM/ODM Support: Available for customized solutions.
- Wide Application Range: Ideal for chemical, metallurgy, instrumentation, and household appliances.
Applications
This transformer is suitable for multiple industries and use cases, including:
- Manufacturing Industry (automation systems, machinery control)
- Scientific & Laboratory Equipment (precise voltage testing, research applications)
- Public & Industrial Equipment (power supply regulation, voltage control)
- Household Appliances (voltage conditioning for sensitive devices)
- Light Industry & Instrumentation (measurement and calibration equipment)
How It Works
The transformer operates using an autotransformer design, consisting of a toroidal coil and a rotating carbon brush. As the carbon brush moves along the coil’s surface, it adjusts the contact position, modifying the coil turn ratio and regulating the output voltage. This ensures stable and precise voltage adjustments without affecting waveform quality.
Model | TDGC2 Series |
---|---|
Core Type | Shell-type Transformer |
Cooling Method | Natural Cooling |
Winding Type | Separated Winding Transformer |
Certification | ISO9001, CE |
Usage | Single-Phase Transformer |
Frequency | 50Hz / 60Hz |
Output Voltage | 0-250V AC (customizable) |
Input Voltage | 380V AC |
Efficiency | >95% |
Waveform Distortion | None |
Electrical Strength | 1500V / 1 min |
Insulation Resistance | Single phase >5MΩ |
Shape of Core | Ring |
Brand | ZHENGXI |
Model Number | TDGC2-3kVA |
Type | Contact Type |
Gross Weight | 60.000kg |
Package Size | 40x40x40 cm |
OEM/ODM | Yes |
Display | Meter / Digital |
Transport Package | Export Standard Packing |
HS Code | 8504401990 |
Origin | Zhejiang, China |
Why Choose ZHENGXI Transformers?
At ZHENGXI, we focus on quality, efficiency, and durability. Our transformers are designed to meet the highest industry standards, ensuring stable and reliable voltage regulation.
Advantages:
- Certified Quality: ISO9001 & CE certification for industry compliance.
- Customizable Solutions: Tailored voltage and design options.
- Durable Performance: Built for long-term stability and reliability.
- Expert Support: Professional assistance and after-sales service.
- Fast Global Shipping: Secure packaging for international delivery.

Order Now
For bulk orders or custom specifications, contact us today! Experience stable and adjustable voltage regulation with ZHENGXI Transformers.
We provide OEM & ODM services, ensuring that our transformers meet your specific requirements. Choose ZHENGXI for superior performance, efficiency, and reliability in voltage regulation.

A manual voltage regulator transformer operates through an autotransformer design, using a toroidal coil and a carbon brush. By adjusting the position of the carbon brush along the coil, users can change the voltage output smoothly. This ensures stable and distortion-free voltage regulation, making it suitable for industrial and household use.
An adjustable transformer is widely used in manufacturing, scientific research, instrumentation, and household appliances. It is particularly beneficial for laboratories needing precise voltage control, industrial automation systems, and testing equipment requiring customized voltage levels.
ZHENGXI transformers are known for their high efficiency (95%), durable build, and precision voltage control. With ISO9001 & CE certifications, these transformers meet international quality standards. They also offer customizable voltage ranges, OEM/ODM options, and advanced digital monitoring, making them a superior choice for professionals requiring reliable power regulation.