Single-chip Microcomputer Relay Protection Tester - Yangzhou DARUI

Single-chip Microcomputer Relay Protection Tester - Yangzhou DARUI

Published: 2020-08-06 14:42:17

Category: Microcomputer Relay Protection Tester

Product Description

Single-chip Microcomputer Relay Protection Tester

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Technical Parameters:
1. AC Current Source:
Phase current output (RMS): 0--40A/phase Accuracy: 0.2%
Three-phase parallel output (RMS): 0--120A/three-phase same-phase parallel output
Phase current long-term allowable working value (RMS): 10A
Maximum output power per phase: 420VA
Maximum output power for three-phase parallel current: 900VA
Maximum allowable working time for three-phase parallel current output: 10s
Frequency range: 0--1000Hz   Accuracy: 0.001Hz
Harmonic order: 2--20 times     Phase: 0--360°   Accuracy: 0.1°
2. DC Current Source:
Current output: 0--±20A/phase Accuracy: 0.2%
3. AC Voltage Source:
Phase voltage output (RMS): 0--125V/phase Accuracy: 0.2%
Line voltage output (RMS): 0--250V
Phase voltage/Line voltage output power: 75VA/100VA
Frequency range: 0--1000Hz Accuracy: 0.001Hz
Harmonic order: 2--20 times   Phase: 0--360° Accuracy: 0.1°
4. DC Voltage Source:
Phase voltage output amplitude: 0--±150V  Accuracy: 0.2%
Line voltage output amplitude: 0--±300V
Phase voltage/Line voltage output power: 90VA/180VA
5. Switching Quantity Terminals:
Switching input terminals: 8 pairs
Dry contacts: 1--20mA, 110V device internal active output
Potential flip: 0--6VDC is low level
15--250VDC is high level
Switching output terminals: 4 pairs, dry contacts Breaking capacity: 110V/2A, 220V/1A.
6. Time Measurement Range:
Range: 1ms--9999s   Measurement accuracy: 1ms
7. Dimensions and Weight:
Dimensions: 365(mm )×400(mm )×195 (mm )      Weight: 18Kg
8. Power Supply: AC220V±10%   50Hz   10A

Main Features:
1. Meets all on-site test requirements. It can test various traditional relays and protection devices, as well as various modern microcomputer protections. Especially for transformer differential protection and standby power supply automatic switching devices, testing is more convenient and *.

It has standard four-phase voltage and three-phase current simultaneous output, with voltage 125V per phase and current 40A per phase. Three-phase current in parallel can reach 120A.
2. All technical indicators fully meet the standard of DL/T624-1997 "Technical Conditions for Microcomputer Test Devices for Relay Protection" issued by the Ministry of Electric Power.
3. Stand-alone operation, built-in high-performance industrial computer, main frequency 300--600MHz, memory 512M, hard disk 4--12G, running Windows XP operating system.
4. The first in the domestic industry to adopt imported brushed stainless steel panel and stainless steel keyboard, and also uses touch mouse, overcoming the disadvantages of trackball mouse being inflexible and easy to damage. It is equipped with an 8.4-inch TFT true color display with a resolution of 800×600, making the overall operation of the single unit convenient and durable.
5. The main control board adopts DSP+FPGA structure, 16-bit DAC output, which can generate high-density sine waves of 2000 points per cycle for the fundamental wave, greatly improving the waveform quality and the accuracy of the tester.
6. The power amplifier adopts high-fidelity linear power amplifier, which ensures the accuracy of small currents and the stability of large currents.
7. Uses USB interface to directly communicate with PC, no need for any conversion cables, convenient to use.
8. Can be connected to a laptop for operation. The laptop and the industrial computer use the same software, no need to relearn the operation method.
9. Equipped with GPS synchronization test function. The device can have a built-in GPS synchronization card (optional) connected to the PC via RS232 port to achieve synchronous remote testing between two testers.
10. Equipped with an independent dedicated DC auxiliary voltage source output, with output voltages of 110V (1A) and 220V (0.6A) respectively, to provide DC working power for relays or protection devices that need it.
11. Has software self-calibration function, avoiding the need to open the chassis to adjust the potentiometer for calibration, thereby greatly improving the stability of accuracy.

Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.

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Product Details

Single-chip Microcomputer Relay Protection Tester - Yangzhou DARUI