HZM1010 Wireless High and Low Voltage Ratio Tester
Huazheng HZM1010 wireless high and low voltage ratio tester is also called the high and low voltage CT wireless ratio tester. It consists of a high voltage detector, a low voltage current clamp, a main unit, a high voltage insulation rod, monitoring software, and a communication line. The instrument uses fast digital circuit processing technology. It can connect insulation rods to measure high-voltage current transformers, primary transformers, high-voltage primary current, and low-voltage secondary current, all while calculating under the condition of not disconnecting or powering off the site. It can determine the ratio, phase, polarity, and ratio error for voltages below 60 kV.
HZM1010 Wireless High Voltage Ratio Tester
Product introduction
The HZM1010 Wireless High Voltage Ratio Tester is a specialized testing instrument designed specifically for use in power systems. It enables wireless, rapid, and high-precision measurement of voltage or current ratios in high-voltage equipment, including power transformers, current transformers, and related apparatus.
By eliminating the need for physical test leads between the high and low voltage sides, the wireless design enhances both operator safety and testing efficiency, making it ideal for field applications in substations and power plants.
Technical Specifications
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Tester |
High voltage detector |
Mainframe (current clamp) |
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Range |
0.0mA～1200A(50/60Hz Auto) |
0.0mA～20A |
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Resolution |
0.1mA |
0.1mA |
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Jaw size |
φ50mm |
φ7.5mm |
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Accuracy |
±2%±5dgt |
±0.5%±5dgt |
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Sampling Rate |
2 times/second |
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Function |
High-low voltage current transformer primary and secondary loop current, transformation ratio, polarity, phase, and on-line test; current and voltage ratio on both sides of transformer; on-line test; load current test |
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Transmission type |
Wireless transmission, linear transmission distance 30m |
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Change gear |
Fully automatic shift |
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Power |
DC6V 7# alkaline battery(1.5V AAA×4) |
DC7.5V 5# alkaline battery(1.5V LR6×5) |
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Test method |
Clamp CT |
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Dimensions |
W/T/H 87*37*262mm |
Host：W/T/H 100*35*204mm |
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Current clamp：W/T/H 42*20*137mm |
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Display mode |
LCD：128dots×64dots Blue screen backlight for dim places |
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LCD Size |
62mm×44mm |
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Change ratio |
Three kinds of transformation ratio display: (The primary and secondary circuit actually measured the current transformation ratio; the conversion ratio of the secondary circuit 5A; 10kV-YY transformer conversion ratio of 10kV/380V), the maximum ratio of 1:1 million |
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Line voltage |
Line test with insulation sheath below 60kV or bare wire current test below 35kV (with insulation rod operation) |
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Lead length |
Current clamp lead 2 meters |
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Weight |
Total instrument weight：7Kg(Insulated rod and instrument package) |
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High pressure detector：370g(Including battery) |
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Host：409g(Including battery) |
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Current clamp：180g |
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Product Applications
Substations/Transmission Systems: High-voltage CT/PT ratio calibration and regular maintenance.
Equipment Manufacturers: Performance testing of current transformers and switchgear before shipment.
Energy Metering Departments: Error tracing and accuracy verification of high-voltage metering current transformers.
Large Industries/Power Plants: Preventive state monitoring of protection and metering current transformers.
Rail Transportation/Railways: Ratio testing of traction substation current transformers and transformers.
FAQ
Q: What is the minimum operating voltage or current of the device?
A: The device can accurately measure voltage or current inputs as low as 5% of the rated value, meeting the testing requirements under low excitation conditions.
Q: What international payment methods does your company accept?
A: We accept common international payment methods such as wire transfer (T/T), letter of credit (L/C), and Western Union.
Q: How can I obtain the latest product price list or distributor pricing?
A: Please contact our sales representative via email on our website, providing your company information and purchase requirements, and we will send you the latest price list.
Q: What is the usual lead time for customized production?
A: Standard customization requirements (such as language packs and logo printing) usually take an additional 7-10 working days; hardware customization typically requires 4-8 weeks.
Q: What should I do if the product malfunctions during the warranty period?
A: Please contact our after-sales service department for remote troubleshooting. If the issue cannot be resolved, the product will need to be sent back to the factory for free repair or replacement.
Q: How does your company ensure consistency in product manufacturing quality?
A: All production processes strictly follow ISO 9001 standards. Key components are manufactured using automated SMT (Surface Mount Technology). Each device undergoes a 72-hour aging test and full functional inspection before shipment.
Product Cases
Company Profile
certification
Our company has obtained utility model patents, ISO 9001, CE, TÜV, and other certifications, ensuring that the products meet international quality standards.
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