Wuhan HKV test Electrical Equipment Manufacturing Co., Ltd
| Customized | Logo · Color · Housing · Function Etc |
| Delivery Time | 5-8 workdays |
| 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) |
| Supply Ability | 1000 |
| 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. |
| Test Range | 0.8～10000 |
| 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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Transformer Ratio Tester
Product Specification
| Customized | Logo · Color · Housing · Function Etc | Delivery Time | 5-8 workdays |
| 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) |
| Supply Ability | 1000 | 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. |
| Test Range | 0.8～10000 | 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 instrument for measuring transformer turns ratio, polarity and connection conditions during commissioning, maintenance and preventive testing.
It uses three-phase digital sine wave inverter technology to provide fast, accurate and stable ratio measurement. Automatic three-phase testing helps reduce wiring and testing time compared with traditional ratio bridge methods.
The tester supports power transformers, distribution transformers, PTs, CTs and Z-type transformers, making it suitable for substations, transformer manufacturers, power utilities, electrical contractors and testing organizations.
| Application | Typical Use |
|---|---|
| Power Transformers | Ratio verification during commissioning and maintenance |
| Distribution Transformers | Installation and preventive testing |
| PT / CT | Ratio and polarity testing |
| Transformer Manufacturers | Factory inspection and quality control |
| Substations | Transformer acceptance and maintenance |
| Field Testing | On-site ratio measurement and troubleshooting |
| Item | 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) |
| Test Type | 3-Phase / Single-Phase / Z-Type |
| Testing Functions | Transformer, PT & CT Ratio / Polarity |
| Maximum Tap Position | 99 |
| Display | 7" TFT Color LCD |
| Data Storage | Up to 100 Test Records |
| Power Supply | Built-in Battery / AC 100–240 V |
| Weight | 7.5 kg Complete Set |
Request Technical Specifications →
Measurement range of 0.8–10000 with high accuracy for transformer ratio verification.
Supports automatic three-phase ratio measurement, reducing connection work and improving field testing efficiency.
Suitable for:
Supports CT ratio and polarity testing for transformer and protection system applications.
Supports transformers with multiple tap positions, making it suitable for tap-changing transformer testing.
A 7-inch color LCD and lightweight design make the tester convenient for on-site transformer testing.
Stores test results and supports USB data transfer for test records and documentation.
Get a Transformer Testing Solution →
The main factors are:
Not sure which model is suitable?
Send us your transformer type, rated voltage, ratio range and testing requirements.
As a direct manufacturer, HKVTEST can provide customized transformer ratio testing solutions according to project requirements.
Customization may include:
Start Your OEM / ODM Project →
What is a transformer turns ratio tester used for?
It measures transformer turns ratio and helps verify polarity and connection conditions during commissioning, maintenance and preventive testing.
What transformers can be tested?
It supports power transformers, distribution transformers, PTs, CTs and Z-type transformers.
What is the measurement range?
The measurement range is 0.8–10000.
Can it test three-phase transformers?
Yes. It supports automatic three-phase, single-phase and Z-type testing.
Can it test CT ratio and polarity?
Yes. CT ratio and polarity testing are supported.
Can test results be saved?
Yes. Up to 100 test records can be stored, with USB data transfer available.
Can the tester be customized?
Yes. HKVTEST provides OEM / ODM customization according to application and project requirements.
HKVTEST is the global brand of Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd., specializing in the R&D and manufacturing of electrical testing equipment.
With 16+ years of manufacturing experience, we provide transformer testing equipment, high-voltage test systems, insulation testers, relay protection test sets, circuit breaker analyzers, cable testing equipment and other electrical diagnostic instruments.
Our testing solutions are supplied to power utilities, substations, transformer manufacturers, electrical contractors and testing organizations worldwide.
Send us:
Transformer Type:
Rated Voltage:
Ratio Range:
Required Testing Functions:
Quantity:
Test Location:
Our engineers will recommend the appropriate transformer turns ratio tester according to your requirements.
WhatsApp: +86 180 7153 1810
Email: fionahuang60@gmail.com
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Seller
Ecer Certification：
Verified Supplier
Wuhan HONGZHI High-Voltage Measurement Electrical Technology Co., Ltd. takes its name from the lofty ideal of "the ambition of a swan". Since its establishment in 2010, we have been deeply engaged in the power industry for 16 years. We are a high-tech enterprise specializing in the R&D, produc... Wuhan HONGZHI High-Voltage Measurement Electrical Technology Co., Ltd. takes its name from the lofty ideal of "the ambition of a swan". Since its establishment in 2010, we have been deeply engaged in the power industry for 16 years. We are a high-tech enterprise specializing in the R&D, produc...
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