The TDGC2 Series Voltage Regulator Transformer is a high-performance autotransformer designed for precise voltage regulation and manual adjustment. Featuring a continuously adjustable turns ratio, it allows seamless voltage control from 0 to the highest output, ensuring a stable and reliable power supply for industrial, commercial, and residential applications.
Built with a shell-type transformer core, this device offers high efficiency (95%), low waveform distortion, and a compact, durable design. The digital display provides real-time voltage readings, enhancing ease of operation. Designed for various applications, it is widely used in chemical processing, manufacturing, instrumentation, scientific research, and household appliances.
With OEM/ODM customization options, fast lead times (5-10 days), and ISO9001 & CE certification, this Voltage Regulator Transformer delivers exceptional performance, safety, and flexibility for a wide range of power management needs. Contact us today to discuss your requirements!
Attribute | Details |
---|---|
Model NO. | TDGC2 |
Core | Shell-type Transformer |
Cooling Method | Natural Cooling |
Winding Type | Separated Winding Transformer |
Certification | ISO9001, CE |
Usage | Single-phase Transformer |
Frequency Characteristics | Low Frequency |
Core Shape | Ring |
Brand | Zhengxi |
Display | Digital |
Type | Contact Type |
Gross Weight | 48.000kg |
Selling Units | Single Item |
Package Size | 31X24X56cm |
Lead Time | 5-10 Days |
OEM/ODM | Yes |
Efficiency | 95% |
Certificate | CE/ISO9001 |
Transport Package | Export Standard Packing |
Trademark | ZHENGXI or OEM |
Origin | Zhejiang, China |
HS Code | 8504401990 |
Product Overview
The Voltage Regulator Transformer is an autotransformer designed for precise voltage adjustment. By using a continuously adjustable turns ratio, it allows smooth voltage control from zero to the highest position. This manual adjustment AC transformer is widely used in industrial, commercial, and household applications to ensure stable and regulated power supply.

Key Features & Performance
- Working Frequency: 50Hz/60Hz
- Efficiency: 95%
- Waveform Distortion: No additional distortion
- Temperature Rise: Low heat emission for long-term use
- Electric Strength: 2000V/min
- Insulation Resistance: Single-phase >5MΩ, Three-phase >2MΩ
Construction Details
Unit Structure
- Small capacity models (0.5KVA-10KVA) feature a single-unit design with a coil fixed on the base and a brush-contact system for voltage regulation.
- Above 10KVA, the regulator is assembled from multiple units connected in parallel and includes a balanced reactor to maintain even current distribution.
Brush System
- Models ≤3KVA use graphite brushes and a metal frame for heat dissipation.
- Models ≥4KVA use copper-graphite composite brushes for better conductivity and durability.

Application Scenarios
The TDGC2 Series Voltage Regulator Transformer is suitable for a wide range of industries, including:
- Industrial Manufacturing: Ensures stable voltage for precision equipment, automation systems, and CNC machines.
- Chemical & Metallurgy: Provides consistent voltage for chemical processing and metal refining.
- Testing & R&D Labs: Ideal for instrument testing, electrical calibration, and laboratory experiments.
- Commercial & Household Use: Supports HVAC systems, security devices, and sensitive electronics.
- Public Infrastructure: Applied in hospitals, telecom networks, data centers, and public utilities.

Product Advantages
✔ Precision Voltage Regulation: Continuously adjustable voltage for optimal performance.
✔ High Efficiency: 95% energy efficiency, reducing power loss.
✔ Compact & Durable: Space-saving design with high-quality materials for long-term use.
✔ Customizable: Supports OEM/ODM customization based on project requirements.
✔ Certified & Reliable: CE and ISO9001 certified, ensuring global safety and compliance.

Technical Specifications
MODEL | CAPACITY (KVA) | DIMENSION (WDH) mm | WEIGHT (KGS) |
---|---|---|---|
TDGC2-0.5 | 0.5 | 140130130 | 4 |
TDGC2-1 | 1 | 200180180 | 6.5 |
TDGC2-2 | 2 | 200180200 | 9 |
TDGC2-3 | 3 | 220200200 | 11 |
TDGC2-5 | 5 | 310240240 | 16 |
TDGC2-10 | 10 | 310240410 | 36 |
TDGC2-15 | 15 | 310240560 | 48 |
TDGC2-20 | 20 | 310240770 | 56 |
TDGC2-30 | 30 | 3102401100 | 105 |
FAQs (Frequently Asked Questions)
We accept T/T, 30% deposit, and 70% balance before shipment.
Usually 7-20 days depending on the order quantity. Samples can be shipped within 1 week.
Small capacity models use color boxes & cartons, while large capacities are packed in wooden crates for protection.
Our servo voltage regulators are available in 100% copper or copper-aluminum hybrid, depending on customer preference.
Yes, we support OEM/ODM branding and custom designs for bulk orders.
Our factory produces 10,000+ units per month for small models and 2,000+ units per month for large-capacity models.
Our Voltage Regulator Transformers are exported to North America, South America, Europe, Southeast Asia, Africa, and the Middle East.
We are ISO9001, CE, PCT, and SGS certified, ensuring compliance with international standards.