Automatic Relay Protection Testing Equipment with Touch Screen Operation
Product Description
Introducing a cutting-edge Relay Protection Device Tester, ingeniously developed in reference to the Ministry of Electric Power's DL/T624-1997 standards. This outstanding device combines insights from a broad spectrum of user feedback and a comprehensive analysis of similar products, leveraging state-of-the-art microelectronics technology. The result is a pioneering, compact microcomputer relay protection tester that meets modern demands with remarkable precision and reliability.
- Experience the seamless integration of DSP + FPGA architecture, delivering true 16-bit DAC output. This tester boasts a built-in modular high-fidelity amplifier, ensuring high power and unmatched performance.
- Enjoy vibrant visuals with the 8.4-inch 800 × 600 TFT true-colour display, complemented by an industrial-grade keyboard and mouse for effortless navigation.
- Equipped with the Win7 operating system, this tester offers GPS synchronous testing capabilities and a USB interface for direct PC communication, enhancing its versatility and ease of use.
Product Parameters
The Relay Protection Device Tester, conceived in alignment with DL/T624-1997 standards, embodies a blend of user-driven insights and meticulous analysis of domestic products. Harnessing cutting-edge microelectronics, it emerges as a new benchmark in miniaturised microcomputer relay protection testing. Its DSP + FPGA structure, true 16-bit DAC output, and built-in high-fidelity amplifier are complemented by an 8.4-inch high-resolution display and robust industrial controls. Operate independently or connect to a laptop, and enjoy the power of the Win7 OS. This compact unit delivers exceptional precision and reliability, offering flexibility and ease of use akin to larger testers, yet in a sleek, user-friendly design.
AC current source (3 * 40a)
| Single phase current output (RMS) |
0 -- 40A / phase, accuracy: 0.2% ± 5mA |
| Three phase parallel output (RMS) |
0 -- 120A / three phase in phase parallel output |
| Allowable working value of phase current for a long time (effective value) |
9.9A |
| Maximum output power per phase |
420VA |
| Maximum output power of three phase parallel current |
1000VA |
| Maximum output allowable working time of triple parallel current |
5s |
| frequency range |
0 -- 1000Hz, accuracy 0.01Hz |
| Harmonic number |
2--20second |
| phase |
0--360The accuracy is 0.1 degree |
2. DC current source
| DC current output |
0--± 10A / phase, accuracy: 0.5% ± 5mA |
3. AC voltage source
| Single phase voltage output (RMS) |
0 -- 120V / phase, accuracy: 0.2% ± 5mv |
| Line voltage output (RMS) |
0--240V |
| Phase voltage / line voltage output power |
75VA/100VA |
| frequency range |
0 -- 1000Hz, accuracy: 0.01Hz |
| Harmonic number |
2--20second |
| phase |
0--360Degree, accuracy: 0.1 degree |
4. DC voltage source
| Single phase voltage output amplitude |
0--± 160V, accuracy: 0.2% ± 5mv |
| Output amplitude of line voltage |
0--±320V |
| Phase voltage / line voltage output power |
90VA/180VA |
5. switching value terminal
| Switch input terminal |
8yes |
| Air contact |
1 -- 20 mA, 24 V, internal active output of the device |
| Potential reversal |
Passive contact: low resistance short circuit signal Active contact: 0-250V DC |
| Switch output terminal |
4Yes, no contact, breaking capacity: 110V / 2a, 220V / 1a |
6. others
| time frame |
1ms -- 9999s, measuring accuracy: 1ms |
| Volume and weight of portable series single machine |
Volume 340 mm x 157 mm x 276mm, about 12.5kg |
| Power Supply |
AC220V±10%,50/60Hz,10A |
7.Working time of AC current
| Working current<10A |
working hours≤60minute |
| 20A>Working current≥10A |
working hours≤70S |
| 30A>Working current≥20A |
working hours≤15S |
| Working current:30A |
working hours≤5S |
Packing Details:
Detailed Photos
Three phase relay protection tester
connect computer(only 32bits computer is ok.Win7/10/11 are ok )
Touch screen
Model: HY331
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can not connect PC/laptop
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Model: HY704
Connect PC/Laptop to use.
64bits computer is ok.
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Six phase relay protection tester
Connect PC/Laptop to use.
64bits computer is ok.
Company Profile

For over 19 vibrant years since 2005, HY has been a leader in the realm of HV electrical testing equipment. From transformer testers to AC/DC hipot testers, relay protection testers, and beyond, our factory produces a comprehensive range of high-voltage testing solutions. We also offer expert electrical solutions and technical support, affirming our commitment to excellence.
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