Specialize in protection relay testing in China
Develop and manufacture production relay test equipment for 20 years.
The protection relay tester ensures that the relay system is set up correctly. In addition to making sure the protection of the power system, proper testing, and commissioning of protection relays also help to minimize the risk of equipment failure and damage, reducing maintenance costs and increasing the overall reliability of the power system.
It is important to note that regular maintenance and testing of protection relays should be carried out to ensure that the system remains effective over time. This includes regular calibration and adjustment of the relay settings, as well as periodic testing of the entire protection system under different fault conditions. The testing and verification of relay protection devices can be divided into four groups:
What does the protection relay tester do?
Protection relay testers use several techniques to test the various types of protection relays installed in power systems. The most common technique is injection testing, where a simulated fault condition is created in the power system, and the response of the protection relay is observed. The tester injects a current or voltage signal into the relay input and measures the output signals. Any malfunction or incorrect operation observed during testing indicates a fault in the protection relay. The protection relay tester can simulate different types of faults and disturbances that can occur in a power system. This capability allows the tester to verify the correct operation of protection relays in various scenarios and ensure that the system can handle different types of faults that may arise.
How to choose suitable models of protection relay testers?
Choosing the most suitable protection relay tester requires careful consideration of various factors, including the types of relays being tested, the features of the tester, its accuracy and reliability, and its ease of use.
For now, our company develops and manufactures the below types of relay testers.
Single-phase relay protection tester.
Three-phase relay protection tester (MCU).
Three-phase relay protection tester (IPC).
Six-phase relay protection tester (IPC).
JB-H Single-phase relay protection tester
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AC voltage |
0～220V/3A |
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AC current |
0～100A/7.5V、0～20A/25V、0～5A/5V |
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DC voltage |
0～220V/3A |
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DC current |
0～20A/25V |
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Constant voltage output |
DC24V、DC48V、DC110V、DC220V |
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Ammeter, voltmeter |
41/2 potential |
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Digital millisecond meter |
0～99.9999s |
HY702 Three-phase relay protection tester (MCU)
AC current output
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Accuracy |
0.2 |
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Phase current output ( RMS ) |
0～40A |
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3-phase in parallel current output (RMS) |
0～120A |
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Phase current values allowed to work a long time (RMS) |
10A |
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Phase current max output power |
400VA |
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3-phase in parallel current max output power |
900VA |
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3-phase in parallel current max output allowable working time |
10s |
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Frequency range ( fundamental wave) |
20～1000Hz |
HY331 Three-phase relay protection tester (IPC)
standard 4-phase voltage, 3 phase current output, voltage 125V/phase, current 40A/phase ,3 phases in parallel up to 120A
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AC current |
DC current |
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Phase current output ( RMS ) |
0～40A/phase |
30A/phase |
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Accuracy: 0.2% |
0.5% |
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3 phase in parallel max output |
120A |
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Phase current values allow to work a long time |
10A |
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Phase current max output power |
420VA |
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3 phase in parallel max output power |
900VA |
HY661 Six-phase relay protection tester (IPC)
standard 6-phase voltage, 6-phase current output, voltage 125V/phase, current 30A/phase, Six phases in parallel up to 180A
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AC current source |
DC current source |
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Amplitude range |
6X(0～30A)/phase |
20A/phase |
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Accuracy: 0.2% |
0.5% |
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6 phase in parallel max output |
180A |
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Phase current values allow to work a long time |
10A |
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Power |
300VA/phase |
300VA/phase |
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6 phase in parallel max output power |
900VA |
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6 phase in parallel current max output allowable working time |
10s |
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About us
Wuhan Huayi Electric Power Technology Co.,Ltd
HUAYI is a professional manufacturer in China that researches and manufactures electric testing equipment. Established in 2005, the company is one of the earliest manufacturers of high-voltage testers in China. HUAYI insists on developing and marketing independently and makes efforts to improve the products' quality, reduce cost, and improve efficiency.
HUAYI is committed to preventative, maintenance, troubleshooting, and commissioning. With ISO certificated, professional engineering support, and Satisfactory customer service, our brand has been recognized and supported by wide users.
large enterprise scale
Efficient and precise processing and testing equipment. We have our factory, engineers, and service team.
Standardized Production
Passed ISO9001 certification and obtained relevant patent certificates.
High-Quality Customized Services
No intermediate links, providing one-stop service from design, processing, mold trial to mass production.
Please get in touch with us if you have any questions about products, prices, technology solutions, or services. We always be with you.
Our address
Gaoxin 4th Road, No.40, Wuhan city, China
Phone Number
(86)-18062012971/+8618064115448 WhatsApp
sales@sinohipot.com/ tina@sinohipot.com
One-stop high voltage test equipment Factory in China
Send your inquiry about test equipment to us and experience the professional solutions it can have on your business or brand. With our technology solutions and products, you can elevate your products, captivate your customers, and unlock new opportunities for growth and success in the electric industy.
As one of the most professional solutions for protection relay testing manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap solutions for protection relay testing made in China here from our factory.
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