The Transformer Turns Ratio Tester is a professional testing instrument designed for transformer ratio measurement during commissioning, maintenance, and preventive inspection.
Compared with traditional ratio bridge testing methods, this instrument provides a more convenient and efficient solution with a large color LCD display, intuitive operation interface, and automatic three-phase ratio testing capability.
The tester adopts three-phase digital sine wave inverter technology, providing fast testing speed, high measurement accuracy, and stable performance.
It supports testing of power transformers, distribution transformers, potential transformers (PT), current transformers (CT), and Z-type transformers, making it suitable for power utilities, substations, transformer manufacturers, and electrical testing organizations.
The Transformer Turns Ratio Tester is widely used in:
| Industry | Application |
|---|---|
| Power Utilities | Transformer commissioning, maintenance, and preventive testing |
| Substations | Transformer inspection and condition assessment |
| Power Plants | Electrical equipment testing and maintenance |
| Transformer Manufacturers | Factory testing and quality control |
| Electrical Contractors | Transformer installation and commissioning |
| Testing Laboratories | Professional transformer ratio testing |
| Parameter | Specification |
|---|---|
| Measurement Range | 0.8~10000 |
| Accuracy ≤1000 | ±(Reading*0.1%+2 digits) |
| Accuracy 1000-3000 | ±(Reading*0.2%+2 digits) |
| Accuracy >3000 | ±(Reading*0.3%+2 digits) |
| Resolution | 0.0001~1 |
| Test Type | Three-phase / Single-phase / Z-type |
| Supported Testing | Transformer, PT, CT ratio and polarity testing |
| Maximum Tap Position | 99 taps |
| Display | 7.0 inch TFT color LCD |
| Data Storage | Up to 100 test records |
| Communication Interface | USB data transfer |
| Power Supply | Built-in lithium battery, AC100-240V adapter |
| Weight | 7.5kg (Complete set), 1.9kg (Main unit) |
| Dimension | 280mm * 180mm * 80mm |
| Operating Temperature | -10℃~50℃ |
| Relative Humidity | ≤90%, non-condensing |
| Feature | Description |
|---|---|
| High Accuracy Ratio Measurement | Provides accurate transformer ratio measurement with maximum range up to 10000 |
| Three-phase Automatic Testing | Completes three-phase transformer ratio testing efficiently with one connection |
| Multiple Transformer Testing | Supports power transformers, PT, CT, and Z-type transformer testing |
| CT Ratio & Polarity Testing | Provides CT ratio and polarity measurement function |
| Intelligent Operation | Large color LCD display with simple menu operation |
| Wide Tap Testing Range | Supports transformer tap positions up to 99 levels |
| Safety Protection Function | Provides high/low voltage reverse connection warning and output short circuit warning |
| Data Storage & Printing | Stores test results and supports USB transfer and thermal printing |
| Portable Design | Lightweight structure suitable for field testing |
The instrument simplifies traditional transformer ratio testing procedures and improves testing efficiency through automatic measurement and direct result display.
Developed and manufactured by Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd., with extensive experience in electrical testing equipment research and production.
We provide:
A transformer turns ratio tester is used to measure transformer ratio, polarity, and connection conditions to verify transformer performance during installation and maintenance.
It supports:
The maximum measurement range of this transformer ratio tester can reach 10000.
Yes. The instrument supports internal data storage, USB data transfer, and thermal printer output.
Yes. Customized solutions can be provided according to different testing requirements.
Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd. is a professional manufacturer specializing in electrical power testing equipment with more than 16 years of industry experience.
We focus on the research, development, manufacturing, and supply of transformer testing equipment, high-voltage testing systems, insulation testing instruments, relay protection test equipment, and power maintenance solutions.
With professional R&D engineers, advanced production facilities, strict quality control systems, and experienced technical support teams, we provide reliable testing solutions for power utilities, substations, transformer manufacturers, and electrical contractors worldwide.
To ensure long-term reliability and customer satisfaction, HKVTEST provides comprehensive after-sales support:
✓ 2-Year Warranty for Complete Machine
✓ Lifetime Technical Support and Engineering Consultation
✓ Factory Calibration Before Shipment
✓ OEM & ODM Customization Service Available
✓ Technical Training and Operation Guidance
✓ Spare Parts Supply Throughout Product Lifecycle
✓ Fast After-sales Response with Remote Technical Assistance
✓ Multi-language Manuals and Product Documentation Available
Looking for professional testing equipment for your power system project?
With 16+ years of manufacturing experience, HKVTEST provides reliable electrical testing instruments and customized solutions for power utilities, substations, contractors, and testing service companies worldwide.
Whether you need product specifications, technical consultation, quotation, delivery information, or customized solutions, our engineering team is ready to support your project.
✓ Product Selection & Technical Consultation
✓ Customized Testing Solutions
✓ Project Quotation & Delivery Support
✓ Installation Guidance & Operation Training
✓ After-sales Technical Support
WhatsApp: +86 180 7153 1810
Email: fionahuang60@gmail.com
Website: www.hkvtest.com
We will reply to your inquiry within 24 hours.
Get professional support from a manufacturer with 16+ years of experience in electrical testing equipment.