Six-Phase Microcomputer Relay Protection Test Set - Yangzhou Darui

Six-Phase Microcomputer Relay Protection Test Set - Yangzhou Darui

Published: 2020-08-03 16:21:51

Category: Microcomputer Relay Protection Tester

Product Description

Six-Phase Microcomputer Relay Protection Test Set

Darui Electric recommends

I. Product Introduction

Adopting 6000 series DSP controller as the core, FPGA programmable logic device outputs waveforms. Due to the use of DDS hardware output waveform technology, the waveform frequency and phase accuracy are quite high. At the same time, the system communicates with the industrial computer directly via USB2.0 interface, making data communication stable and reliable. The six-phase relay protection test set uses high-precision D/A converters and active low-pass filters to make the output waveform smooth with excellent amplitude-frequency characteristics. Meanwhile, the control system also retains 12 channels of 12-bit A/D conversion circuits, which can collect the output waveforms of 12 analog quantities in real time and display the actual output waveform, amplitude, and phase on the screen through software.

Current and voltage adopt high-performance linear amplifier direct coupling output mode, so that the current and voltage sources can directly output AC and DC waveforms, and can output various combined waveforms such as square waves, superimposed harmonic waveforms, fault transient waveforms, etc. through software calculation, which can better simulate the current and voltage characteristics during various short-circuit faults.

II. Technical Parameters:

1. AC Current Source:

Amplitude range: 6×(0-30A)/phase Accuracy: 0.2%

Six-phase current parallel output value: 180A

Long-term allowable working value of phase current: 10A

Power: 300VA/phase

Six-phase parallel power: 900VA

Allowable working time for six-phase parallel output: 10s

Frequency range: 0--1000Hz; Accuracy: 0.001Hz

Harmonic order: 2--20; Phase: 0--360°; Accuracy: 0.1°

2. DC Current Source:

Amplitude: 20A/phase; Power: 300VA/phase; Accuracy: 0.2%

3. AC Voltage Source:

Amplitude range: 6×(0--125V); Accuracy: 0.2%

Line voltage range: 0--250V

Phase voltage/line voltage output power: 70VA/100VA

Frequency range: 0--1000Hz; Accuracy: 0.001Hz

Harmonic order: 2--20

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, 24V device internal active

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

III. Product Features:

1. Meets all on-site test requirements.

The six-phase microcomputer relay protection test set has standard six-phase current and six-phase voltage simultaneous output, with current 30A/phase and voltage 125V/phase. Six-phase current parallel can reach 180A. 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, the test is convenient.

2. All technical indicators fully meet the standard of DL/T624-1997 "Technical Conditions for Microcomputer-Based Test Equipment 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 128M, hard disk 6--12G, running Windows XP operating system.

4. Adopts imported brushed stainless steel panel, stainless steel keyboard, and touch mouse, overcoming the disadvantages of trackball mouse being inflexible and easy to damage. It also uses an 8.4-inch TFT true color display with a resolution of 800×600, making the overall operation of the single machine convenient and durable.

5. The main control board adopts DSP+FPGA structure, 16-bit DAC output, which can generate high-density sine waves with 2000 points per cycle for the fundamental wave, greatly improving the waveform quality and the accuracy of the test set.

6. The power amplifier adopts high-fidelity linear power amplifier, which ensures both the accuracy of small currents and the stability of large currents.

7. The six-phase microcomputer relay protection test set uses USB interface to communicate directly with PC, without 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 be built-in GPS synchronization card (optional) connected to PC via RS232 port to realize synchronous adjustment test between two test sets in different places.

10. Equipped with 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. The six-phase microcomputer relay protection test set has software self-calibration function, avoiding the need to open the chassis and adjust potentiometers to calibrate accuracy, thus 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

Six-Phase Microcomputer Relay Protection Test Set - Yangzhou Darui