Wuhan HUAYI Electric Power Technology Co., Ltd is a professional manufacturer in China, researching and manufacturing cable fault locator. HUAYI insists on developing and marketing independently, and make efforts to improve the products' quality, reduce cost, and improve efficiency. Widely used in electricity, water conservancy, petroleum, railway, mining, chemical industry and other industries.
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. Our products are involved AC/DC Hipot tester, series resonant test system, transformer tester, relay tester, circuit breaker/switch tester, oil/SF6 tester, cable tester and other electric instruments.
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.
Types of Resistance Tester
Grounding Resistance Tester
HYCZ-H Grounding Resistance Tester can auto-test a lot of portable short-circuit ground wire, and personal protective grounding wire under the new safety regulatory requirements, and automatically determine whether the ground wire is qualified.
Ground Grid Earth Resistance Tester
Ground grid earthing tester is a kind of high-precision testing instrument used in substations and other fields to test earth resistance and related parameters.
High Voltage Insulation Resistance Tester
The instrument combines the advantages of analog circuits, digital circuits, and mechanical operation, and has achieved the leading position in the output voltage, output current, measuring range, measuring accuracy, and anti-interference ability.
Clamp On Ground Resistance Tester
The double-clamp multi-function ground resistance tester is specially designed and manufactured for on-site measurement in accordance with the new lightning protection ground resistance detection standard.
Pointer Insulation Resistance Meter
The insulation resistance meter (pointer type) itself has the characteristics of large capacity, strong anti-interference ability, diversified measurement indicators, accurate measurement results, simple and rapid measurement process, easy to carry and so on.
Water Cooling Generator Insulation Tester
This product is specially used for measuring and testing of water-cooled generator, and can also be used for insulation testing in laboratory or on site.
Product Parameter
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Rated(kV) |
0.25,0.5,1,2.5,5,10,15(kV) |
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Test voltage(kV) |
Rated voltage ×(1±10%)The load resistance is not less than 1% of the range |
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The max error is 10% RDG range |
(0.001～50)GW/5kV/10kV/15kV (0.001～50)GW/2.5kV (0.001～50)GW/1kV (0.001～5)GW/0.5kV (0.001～5)GW/0.25kV |
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The max error is 20%RDG range |
(50～2000)GW/5kV/10kV/15kV (50～200)GW/2.5kV (50～100)GW/1kV (5～10)GW/0.5kV (5～10)GW/0.25kV |
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No requirements |
>10T |
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Output short circuit current |
≥5mA |
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Cx |
0.01-9.99uF 20%±5rgd |
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Absorption ratio, polarization index Measuring range o |
Test range: 0.01 ～9999.99 Error: ±(1%RDG＋1d) |
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Error of output voltage display |
±(3%RDG + 1d) |
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Live monitoring |
Alarm AC 0-3KV(re) |
Advantages of Resistance Tester
Identify Potentially Hazardous Equipment: One of the primary benefits of using a resistance tester is that it can help identify potentially hazardous equipment. The tester can detect faults in equipment, such as a breakdown in insulation, that may lead to electrical shocks or even electrical fires.
Ensure Reliable Equipment Operation: In addition to safety benefits, a resistance tester can also help ensure reliable equipment operation. This can help prevent costly repairs and outages, and ensure that equipment operates at peak performance.
Easy to Use and Accurate: Resistance testers are designed to be easy to use and provide accurate readings. They typically come with easy-to-read displays and are equipped with features that make them simple to operate.
Efficient Storage: It supports PI and DAR calculations, customizable test modes, and real-time monitoring of voltage, current, and temperature, ensuring safety and reliability. Built-in storage for up to 1,000 data sets, with USB and Bluetooth connectivity for easy data export.
Application of Resistance Tester
Power industry
Resistance tester is widely used in the power industry in power generation, transmission, and distribution processes. Electrical equipment, such as generators, transformers, switchgear, etc., require insulation resistance testing to ensure safe operation.
Communication industry
From communication base stations to data centres, resistance testers detect the insulation performance of communication equipment, ensuring its normal operation in high-voltage environments.
Transportation industry
Resistance testers are crucial for ensuring traffic safety in the transportation industry, especially in the railway and air transportation industries. The power supply equipment of the railway system and the electrical system of the aviation system both require resistance testing.
Manufacturing
From automation equipment on production lines to maintenance of factory lighting systems, resistance testers can help manufacturing enterprises promptly identify potential insulation problems and ensure the safe operation of equipment.
Construction industry
Electrical equipment and power systems are indispensable and important components in the construction industry. Resistance testers are widely used in construction sites to ensure the safety of electrical equipment.
Petrochemical industry
Resistance testers are of great significance in this industry to ensure the safety and stability of equipment. Conducting insulation resistance tests on petrochemical equipment can identify potential insulation faults promptly to avoid production accidents and environmental pollution caused by insulation issues.
Differences Between Ground Resistance Tester and Insulation Resistance Tester
Different uses
The insulation resistance tester is used to test the size of the insulation resistance between two conductors, and the grounding and resistance tester is used to measure the contact resistance between the grounded electrode (plate) buried in the ground and the earth.
The resistance value is different
The insulation resistance tester is usually measured by a large resistance value, such as more than 1 megaohms, grounding, resistance tester is measured by the resistance value is usually small, such as below 20 ohms.
Different test methods
The test method of the grounding and resistance tester is that the electrical equipment relies on the ground to connect to the same potential, which is the tightness of the contact between the wire or lightning protection lead line and the earth, and the insulation resistance tester is not.
Usage Requirements
Safety Operations
Avoid unauthorized modifications to the tester's circuits or parameters to prevent safety incidents.
Compliance with Safety Regulations
Before use, inspect the electrical connections of the tester, such as the power source and plugs, ensuring there are no issues such as burrs or fractures.
Appropriate Selection of Testing Conditions
Select different testing conditions based on the characteristics of the test object, such as test current and test duration.
Prevention of High Voltage Breakdown
During testing, insulation between the tester's electrodes and the device to be tested is necessary to avoid high-voltage breakdown incidents.
Maintenance Attention
Regular maintenance and timely replacement of parts, along with circuit inspections, are necessary to extend the tester's lifespan.
Environmental Considerations
During usage, consider the environmental factors such as humidity, temperature, and atmospheric pollution, as these can impact the accuracy of test results.
How To Cooperate With Us
Please contact us with any questions about products, services, or technology issues. We will always be with you and listen to your needs.
Our address
Gaoxin 4th Road, No.40, Wuhan city, China
Phone Number
(+86)-18062012971/whatsapp:+8618064115448
Sales@sinohipot.com/ tina@sinohipot.com
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 resistance tester manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap resistance tester made in China here from our factory.
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