HUAYI: Professional Transformer DC Resistance Tester Manufacturer
Wuhan HUAYI Electric Power Technology Co.,Ltd. (HUAYI for short) is a professional manufacturer in China, researching and manufacturing electric testing equipment. HUAYI insist developing and marketing independently, and make efforts to improve the products quality, reduce cost, and improve efficiency.
Why Choose Us
Rich Experience
The company was established in 2005 and has more than ten years of professional experience. It is one of the earliest manufacturers of high-voltage testers in China.
Professional Technology Support
Specialize in testing and solutions for more than 18 years. Own experienced engineers. Professional on delivery, installation, debugging, and training.
ISO Certification
We have a professional R&D technical team and strict quality control to ensure safety, accuracy and efficiency. Passed ISO9001 certification and obtained relevant patent certificates.
24 hours After-sales
Professional after-sales service, paying attention to customers' feedback about products; Providing solutions within 24 hours, if the customers have any problem; Act quickly and efficiently.
Product Parameter
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Output current |
50A,20A,10A,5A,1A,0.2A,10mA,<1mA |
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Range |
50 A gear 75uΩ～0.4Ω |
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20 A gear 0.5mΩ～ 1 Ω |
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10 A gear 1.0mΩ～ 2 Ω |
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5 A gear 10 mΩ～ 4 Ω |
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1 A gear 0.1Ω～ 20Ω |
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0.2A gear 1.0Ω～ 100Ω |
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10mA gear 50Ω～ 2kΩ |
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<1mA gear 500Ω～ 25kΩ |
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Accuracy |
±(reading×0.2%+2bit) |
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Power supply |
AC220V±10%, 50/60Hz |
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Temperature |
-10℃～50℃ |
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Relative humidity |
＜90%,No RH |
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Volume |
428mm×350mm×230mm |
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Weight |
13.2 kg |
Outer Casing: Made of high-strength plastic or aluminum alloy, providing durability, impact resistance, and insulation for field and laboratory use.
Conductors: Utilizes high-purity copper wires and low-resistance terminals to ensure accurate measurement and minimize power loss.
Leads: Constructed from silicone-insulated flexible cables with copper or gold-plated clips, ensuring safe operation and stable contact.
Advantages of Transformer DC Resistance Tester
Precision Testing
The transformer DC resistance tester is designed to measure winding resistance with high precision. This level of accuracy is crucial in identifying issues such as winding deformation or poor connections within the transformer, ensuring the test results are reliable and informative for maintenance.
Speed and Efficiency
Traditional testing methods can be time-consuming. The transformer DC tester, however, measures resistance across all three windings simultaneously. This rapid testing feature reduces maintenance time significantly, boosting overall work efficiency.
Portable and On-Site Testing
With its compact and lightweight design, the transformer DC resistance tester is easy to transport and set up. Technicians can conduct tests directly on-site, removing the need to move the transformer to a dedicated testing facility, which is especially valuable in remote or hard-to-access locations.
Multifunctional Capabilities
Beyond resistance testing, this instrument can handle other transformer maintenance tests, such as grounding resistance and transformer ratio testing. This versatility provides technicians with a comprehensive testing solution, consolidating multiple tests into one convenient device.
Automation for Reduced Error
Many transformer DC resistance testers come with automated data recording and report generation. This feature not only streamlines the testing process but also reduces human error, as it allows for consistent, automatic documentation of results.
Industrial Application of Transformer DC Resistance Tester
Power Generation
Power plants utilize large generators to produce electricity. These power plants use the transformer DC resistance tester to check the transformers in the plants. They help users identify any resistance issues.
Power Distribution
Utility companies employ the testers to maintain and test the high voltage transformers in substations. They help the companies find any faults within the transformers.
Manufacturing
A wide range of factories depends on transformers to power their machines. The transformer DC resistance testers are used in these factories to regularly check the transformers. This makes sure that employees work in a safe environment.
Aerospace
The aerospace industry uses a few transformers with very high resistance. The transformer DC resistance testers help maintain these vital components and avoid failures during flights.
Transportation
Transportation systems, like railways and subways, use transformer DC resistance testers to check their electrical networks. The testers help prevent power disruptions on trains.
Renewable Energy
With the increase of renewable energy sources like wind and solar power, the transformer DC resistance testers are also used in these new power plants. They help maintain the transformers connected to the DC output from solar panels or wind turbines.
Measure when the coil temperature is stable, and the temperature difference between the upper and lower parts of the transformer tank should not exceed 3°C.
Due to the inductance of the transformer coil, the charging current during measurement is not stable, so the counting must be performed after the current is stable, and measures to shorten the charging time should be taken if necessary.
Minimize the contact resistance of the wires in the test circuit. The transformer taps in operation are often affected by oil film and other contaminants to make them poorly contacted. Generally, it is necessary to switch several times before measuring to avoid discrimination errors.
When measuring the low-voltage side of the transformer DC resistance tester, all personnel should keep a proper safe distance from the high-voltage side.
The transformer DC resistance tester should be protected from strong vibration, direct sunlight and magnetic fields during transportation, storage and work.
When storing and storing the instrument, pay attention to the ambient temperature and humidity. It should be placed in a dry, ventilated, and non-corrosive place. It should not be exposed to damp, rain, or exposure to the sun. When using it, handle it with care, and do not drop it.
Accessory
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Name |
Quantity |
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DC Resistance Tester host |
1 |
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Power line |
1 |
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Special testing wire |
1 |
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Fuse |
2 |
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Standard resistance |
1 |
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Printing paper |
2 |
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Ground wire |
1 |
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Instruction manual |
1 |
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Certificate of soundness |
1 |
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Warranty card |
1 |
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Packing list |
1 |
How To Cooperate With Us
Inquiry: You can contact us online or sending us an inquiry. Please provide the details of your requirements as clear as possible. So we can send you the offer at the first time.
Phone Number: (+86)-18062012971/whatsapp:+8618064115448
E-mail: sales@sinohipot.com/ tina@sinohipot.com
Custom Plan Development: During the consultation, we’ll evaluate your specific requirements and together, craft a custom quality assurance plan tailored to your needs.
Agreement and Setup: Once you’re satisfied with the plan, we’ll finalize the details and set up everything needed to get started.
Quality Assurance Implementation: Our team will then implement the quality assurance protocols on your selected products or processes.
Delivery: Deliver cargos by sea or by air according to requirement.
Packaging and Delivery
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Packing detail: |
Packing with wooden cases, provide different solutions of shipping way. |
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Payment: |
We accept many payment term, such as T/T, Western Union, L/C. |
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Warranty period: |
One-year warranty, Installation, and commissioning of specific products. |
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Delivery time: |
Most of our products are in stock and can be delivered upon payment. The delivery time usually does not exceed 15 days. |
Our Certificates
As one of the most professional transformer dc resistance tester manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap transformer dc resistance tester made in China here from our factory.
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