The Transformer Turns Ratio & Winding Resistance Tester combines turns ratio testing and DC winding resistance measurement in one portable instrument, using simplified one-time wiring so both tests can be performed without repeated connections.
It supports three-phase and single-phase transformers, PT, CT and Z-type transformers, making it suitable for transformer commissioning, maintenance, preventive testing, manufacturing and repair.
Technical Parameters
| Parameter |
Specification |
| Turns Ratio Range |
0.9–2000 |
| Turns Ratio Accuracy |
±(reading×0.1%+2 digits) ≤200; ±(reading×0.2%+2 digits) 200–500; ±(reading×0.3%+2 digits) >500 |
| Winding Resistance Range |
0.5mΩ–20kΩ |
| Test Current |
25mA–10A |
| Winding Resistance Accuracy |
0.2% |
| Test Types Supported |
Three-phase, single-phase, PT, CT, Z-type |
Application Scenarios
- Transformer commissioning and acceptance testing
- Substation transformer maintenance
- Preventive transformer testing
- Transformer manufacturing and repair
- On-site transformer testing
Suitable for power transformers, distribution transformers, PT, CT, three-phase transformers, single-phase transformers and Z-type transformers.
Key Features
2-in-1 Transformer Testing
Combines turns ratio and DC winding resistance testing in one instrument, reducing the need for separate testing equipment.
One-Time Wiring
Simplified wiring reduces repeated connection work when performing different tests, helping improve field testing efficiency.
Wide Transformer Compatibility
Supports three-phase, single-phase, PT, CT and Z-type transformer testing for a wide range of power applications.
Automatic Test Analysis
Automatically calculates turns ratio error and supports ratio, group, polarity and vector testing, reducing manual calculation.
Wide Measurement Range
Turns ratio range of 0.9–2000 and winding resistance measurement from 0.5mΩ to 20kΩ, with test current up to 10A.
Designed for Field Testing
Portable design suitable for transformer commissioning, maintenance and on-site testing.
OEM/ODM Customization
Logo & Branding
Your company logo and branding can be applied to the unit and its interface.
Appearance & Case Color
Case color and exterior finish can be adjusted to match your brand or product line.
Functional Parameters
Test functions, measurement ranges, and hardware configuration can be customized to your specification.
Software UI & Language
Touchscreen interface language and layout can be customized for your target market.
MOQ & Lead Time
MOQ of 1 unit for logo/appearance customization. Lead time is standard production plus 1–2 weeks for customized units.
Get Your Transformer Tester Solution
Tell us your requirements and our engineers will recommend the right configuration.
- Test Object
- Required Specifications
- OEM/ODM Requirements
- Quantity
- Test Location
Request a Quote
Why Choose HKVTEST
HKVTEST is a National High-Tech Enterprise with over 16 years of experience in R&D and manufacturing of power testing equipment, holding 10+ patents. Every unit is factory-tested before shipment, and we provide direct factory technical support along with OEM/ODM customization for project-specific requirements. We've supplied testing equipment to customers across Rwanda, Tanzania, the Philippines, Vietnam, and India.
FAQ
Can this tester perform both turns ratio and winding resistance testing?
Yes. It combines both testing functions in one portable instrument.
What types of transformers can be tested?
Three-phase and single-phase transformers, PT, CT and Z-type transformers.
Is it suitable for on-site testing?
Yes. The portable design and simplified wiring make it suitable for commissioning, maintenance and field testing.
What is the winding resistance measurement range?
0.5mΩ–20kΩ, with a test current of 25mA–10A.
Contact Us
Need Professional Advice?
Our engineers can recommend the right equipment configuration based on your transformer type, rated voltage, capacity, and required testing functions. Contact us for technical recommendations and product selection assistance.
WhatsApp: +86 180 7153 1810
Email: fionahuang60@gmail.com
Website: www.hkvtest.com
About HKVTEST
HKVTEST is the global brand of Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd., a National High-Tech Enterprise with over 16 years of experience in electrical testing equipment R&D and manufacturing, holding 10+ patents.
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