HY331 Microcomputer Relay Protection Tester

HY331 Microcomputer Relay Protection Tester

The host adopts DSP FPGA structure, true 16 bit DAC output, built-in new modular high fidelity linear high-power amplifier, built-in 8.4-inch TFT true color display screen with a resolution of 800 × 600, and high-end industrial keyboard and mouse. The Windows XP operating system is powerful. Small size and high precision. It not only has the superior performance and advanced functions of large testers, but also has the advantages of small and flexible testers, easy operation, and high reliability, with a high cost performance ratio. It is a handy tool for relay protection workers.

HY331 Microcomputer Relay Protection Tester

Product Features

1. Meet all on-site testing requirements. This instrument has a standard four phase voltage and three-phase current output, with a voltage of 125V/phase and a current of 40A/phase. Three phase parallel connection can reach up to 120A.
It can be used to test various traditional relays and protection devices, as well as various modern microcomputer protections, especially for transformer differential power protection and backup
Self feeding device makes testing more convenient and efficient.
2. All technical indicators fully meet the standards of DL/T624-1997 "Technical Conditions for Microcomputer based Test Devices for Relay Protection" issued by the Ministry of Electric Power.
3. Classic Windows XP operating interface, user-friendly human-machine interface, easy and fast operation; High performance embedded industrial control computer with 8.4-inch resolution
For an 800 × 600 TFT true color display screen, it can provide rich and intuitive information, including the current working status of the device and various help information.
4. The Windows XP system comes with a built-in recovery function to prevent system crashes caused by illegal shutdowns or misoperations.
5 . Equipped with an ultra-thin industrial keyboard and optical mouse, various operations can be completed through the keyboard or mouse just like operating a regular PC.
6. The main control board adopts DSP FPGA structure and 16 bit DAC output, which can generate high-density sine waves of 2000 points per week for the base wave, greatly improving the quality of the waveform and enhancing the measurement
The accuracy of the testing instrument.
7. The power amplifier adopts high fidelity linear power amplifier, which ensures the accuracy of small current and the stability of large current.
8. It uses a USB interface to communicate directly with the PC without any adapter cables, making it convenient to use.
9. Can be connected to a laptop (optional) for operation. Laptops and industrial computers use the same software, so there is no need to relearn the operating methods.
10. Equipped with an independent dedicated DC auxiliary voltage source output, with output voltages of 110V (1A) and 220V (0.6A) respectively. To provide relays or protection devices that require DC working power supply
Use of protective devices.
11. It has software self calibration function, which avoids the need to open the chassis and adjust the potentiometer to calibrate accuracy, greatly improving the stability of accuracy.

HY331 Microcomputer Relay Protection Tester

Product parameters

1. AC current source
Phase current output (effective value): 0-40A/phase; Accuracy: 0.5%.
Three phase parallel output (effective value): 0-120A/Three phase in-phase parallel output.
Long term allowable operating value (effective value) of phase current: 10A.
Each phasez·uiHigh output power: 420VA.
Three phase parallel currentz·uiHigh output power: 900VA.
Triple currentz·uiMaximum output allowed working time: 10 seconds.
Frequency range: 0-1000Hz; Accuracy: 0.001Hz.
Harmonic frequency: 2-20 times; Phase: 0-360 °; Accuracy: 0.1 °.
2. DC current source
Current output: 0~± 30A/phase; Accuracy: 0.5%.
3. AC voltage source
Phase voltage output (effective value): 0-125V/phase; Accuracy: 0.5%.
Line voltage output (effective value): 0-250V.
Phase voltage/line voltage output power: 75VA/100VA.
Frequency range: 0-1000Hz; Accuracy: 0.001Hz.
Harmonic frequency: 2-20 times; Phase: 0-360 °; Accuracy: 0.1 °.
4. DC voltage source
Phase voltage output amplitude: 0 to ± 150V; Accuracy: 0.5%.
Line voltage output amplitude: 0 to ± 300V.
Phase voltage/line voltage output power: 90VA/180VA.
5. Switching terminal
Switching input terminals: 8 pairs.
Empty contact: 1-20mA, 24V device internal active output.
Potential flip: 0-6VDC is a low level.
15-250VDC is a high level.
Switching output terminals: 4 pairs, air contact, breaking capacity: 110V/2A, 220V/1A.
6. Time measurement range
Range: 1ms to 9999s.
Measurement accuracy: 1ms.
7. Volume and weight
Volume: 455mm × 530mm × 220mm.
Weight: 23Kg.
8. Power supply
AC220V ± 10%.
50Hz, 10A.