Wuhan HKV test Electrical Equipment Manufacturing Co., Ltd
| Test Range | 0.8～10000 |
| Delivery Time | 5-8 workdays |
| Testable Objects & Functions | Supports three-phase transformer, single-phase transformer, PT, CT, Z-type transformer; tests transformation ratio, vector group and polarity; supports CT polarity ratio test and single-phase angle difference test |
| Alarm Function | High & low voltage reverse connection alarm, output short circuit alarm |
| Packaging Details | Product packaging can be customized and negotiated as required. |
| Power Supply | Built-in lithium battery; Adapter input: AC 100-240V, 50/60Hz, output: DC 15V ≥1A; 5.5*2.1mm DC interface |
| Measurement Accuracy | ≤1000: ±(Reading×0.1%+2 digits); 1000～3000: ±(Reading×0.2%+2 digits); ＞3000: ±(Reading×0.3%+2 digits) |
| Customized | Logo · Color · Housing · Function Etc |
| Supply Ability | 1000 |
| Resolution | 0.9～9.9999: 0.0001; 10～99.999: 0.001; 100～999.99: 0.01; 1000～9999.9: 0.1; 10000: 1 |
| Place of Origin | WUHAN |
| Brand Name | HZGC |
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Product Specification
| Test Range | 0.8～10000 | Delivery Time | 5-8 workdays |
| Testable Objects & Functions | Supports three-phase transformer, single-phase transformer, PT, CT, Z-type transformer; tests transformation ratio, vector group and polarity; supports CT polarity ratio test and single-phase angle difference test | Alarm Function | High & low voltage reverse connection alarm, output short circuit alarm |
| Packaging Details | Product packaging can be customized and negotiated as required. | Power Supply | Built-in lithium battery; Adapter input: AC 100-240V, 50/60Hz, output: DC 15V ≥1A; 5.5*2.1mm DC interface |
| Measurement Accuracy | ≤1000: ±(Reading×0.1%+2 digits); 1000～3000: ±(Reading×0.2%+2 digits); ＞3000: ±(Reading×0.3%+2 digits) | Customized | Logo · Color · Housing · Function Etc |
| Supply Ability | 1000 | Resolution | 0.9～9.9999: 0.0001; 10～99.999: 0.001; 100～999.99: 0.01; 1000～9999.9: 0.1; 10000: 1 |
| Place of Origin | WUHAN | Brand Name | HZGC |
| High Light | handheld transformer turns ratio tester ，portable transformer ratio tester ，transformer turns ratio tester with warranty | ||
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 |
It can also be used for:
It can be used for power transformers, distribution transformers, potential transformers (PT), current transformers (CT) and Z-type transformers.
| 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 |
When selecting a transformer turns ratio tester, consider the following:
Transformer Type
Confirm whether you need to test power transformers, distribution transformers, PT, CT or Z-type transformers.
Required Test Type
For three-phase transformers, automatic three-phase testing can help reduce connection and testing time. For PT and CT applications, confirm that ratio and polarity testing are required.
Measurement Range
Select a tester according to the expected transformer ratio. This model covers 0.8–10000.
Tap Testing
If your transformer has multiple tap positions, check the required tap range. This model supports up to 99 taps.
Send us your transformer type, rated voltage, ratio range and required testing functions.
Our technical team can recommend a suitable configuration and provide a quotation.
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:
Additionally, we offer:
As a direct manufacturer, we support customized transformer turns ratio testing solutions for different applications.
Customization can include:
Send us your technical requirements or project specifications for evaluation.
A transformer turns ratio tester is used to measure transformer ratio, polarity, and connection conditions to verify transformer performance during installation and maintenance. It is also used to measure transformer turns ratio and help verify ratio accuracy, polarity and connection conditions during commissioning, maintenance and preventive testing.
It supports:
The maximum measurement range of this transformer ratio tester can reach 10000. The measurement range is 0.8–10000.
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. OEM and ODM customization is available according to specific project requirements.
Yes. The tester supports automatic three-phase ratio testing as well as single-phase and Z-type testing.
Yes. CT ratio and polarity testing are supported.
Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd. is a professional manufacturer specializing in electrical power testing equipment with more than 16 years of R&D and manufacturing 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.
We provide transformer testing, high-voltage testing, cable testing, insulation testing and other electrical testing solutions for power utilities, substations, transformer manufacturers, electrical contractors and testing service companies.
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 for our transformer testing equipment:
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.
Send us your transformer type, voltage level, ratio range and testing requirements. Our technical team will recommend a suitable model and provide a quotation.
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Seller
Ecer Certification：
Verified Supplier
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