Transformer Turns Ratio Tester with Winding Resistance Measurement
Product Introduction
The Transformer Turns Ratio Tester with Winding Resistance Measurement is a multifunctional transformer testing instrument designed for transformer commissioning, maintenance, and inspection.
It integrates transformer turns ratio testing and DC winding resistance measurement functions into one portable device, allowing engineers to complete two important transformer tests efficiently with simplified wiring and improved testing efficiency.
The tester adopts advanced three-phase digital sine wave inverter technology and DSP-controlled constant current source technology, providing accurate measurement, fast testing speed, stable output, and reliable field performance.
It is suitable for power transformers, distribution transformers, PT, CT, and Z-type transformers, and is widely used by power utilities, substations, transformer manufacturers, and electrical maintenance teams.
Application Areas
The Transformer Turns Ratio Tester with Winding Resistance Measurement 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 acceptance testing and quality control |
| Electrical Contractors |
Transformer installation and commissioning |
| Testing Laboratories |
Professional transformer performance testing |
Technical Parameters
Turns Ratio Measurement
| Parameter |
Specification |
| Measurement Range |
0.9～2000 |
| Accuracy ≤200 |
±(Reading*0.1%+2 digits) |
| Accuracy 200-500 |
±(Reading*0.2%+2 digits) |
| Accuracy >500 |
±(Reading*0.3%+2 digits) |
| Resolution |
0.0001～0.1 |
| Test Type |
Three-phase / Single-phase / Z-type |
| Maximum Tap Position |
99 taps |
| Testing Function |
Ratio, polarity, vector group, phase angle measurement |
Winding Resistance Measurement
| Test Current |
Measurement Range |
Accuracy |
| 10A |
0.5-500mΩ |
0.2% |
| 5A |
0.001-2Ω |
0.2% |
| 2.5A |
0.005-10Ω |
0.2% |
| 1A |
0.01-20Ω |
0.2% |
| 500mA |
0.02-40Ω |
0.2% |
| 250mA |
0.04-80Ω |
0.2% |
| 100mA |
0.1-200Ω |
0.2% |
| 50mA |
0.2-400Ω |
0.2% |
| ≤25mA |
1-20kΩ |
0.2% |
Key Features
| Feature |
Description |
| Integrated Testing Function |
Combines transformer turns ratio testing and DC winding resistance measurement in one device |
| High Accuracy Measurement |
Provides accurate ratio and resistance measurement with stable testing performance |
| Multiple Transformer Testing |
Supports three-phase transformers, single-phase transformers, PT, CT, and Z-type transformers |
| Fast Automatic Testing |
Automatically completes measurement, calculation, and result analysis |
| Intelligent Protection |
Provides high/low voltage reverse connection warning, short circuit protection, and discharge reminder |
| Data Storage Function |
Stores up to 100 test records and supports USB data transfer to PC |
| Built-in Thermal Printer |
Prints test results directly for convenient report management |
| Portable Field Design |
Compact and lightweight structure for on-site transformer testing |
Product Advantages
Two Transformer Tests in One Device
This tester combines transformer turns ratio testing and winding resistance measurement, reducing the need for multiple testing instruments and improving field testing efficiency.
Professional Electrical Testing Manufacturer
Manufactured by Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd., with more than 16 years of experience in electrical testing equipment development and production.
Reliable Testing Performance
- High measurement accuracy
- Stable output control
- Intelligent safety protection
- Suitable for long-term field operation
Factory Direct Supply & Customization
We provide:
- Factory direct supply
- OEM customization
- Customized testing solutions
- Professional technical support
- Complete after-sales service
FAQ
Q1: What is a transformer turns ratio tester used for?
A transformer turns ratio tester is used to measure transformer ratio, polarity, connection group, and winding resistance to verify transformer performance and ensure reliable operation.
Q2: Can this equipment measure transformer winding resistance?
Yes. This equipment integrates transformer turns ratio testing and DC winding resistance measurement functions in one unit.
Q3: What types of transformers can be tested?
It supports:
- Power transformers
- Distribution transformers
- PT transformers
- CT transformers
- Z-type transformers
Q4: Can test data be saved and exported?
Yes. The instrument supports internal data storage of up to 100 test records and USB data transfer to a computer.
Q5: Do you provide technical support and customization?
Yes. We provide professional technical support, customized solutions, and after-sales service according to customer requirements.
About Us
Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd.
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.
Our Advantages
- 16+ years electrical testing equipment manufacturing experience
- Professional R&D and engineering team
- Factory direct supply
- OEM and customized solutions
- Strict quality inspection before delivery
- Global technical support capability
Warranty & Service
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
Contact Us
Need A Reliable Electrical Testing Solution?
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.
Contact Our Technical Team Today
✓ 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.
Request A Quote Now
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