Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of three phase relay protection tester in China. If you're going to wholesale durable three phase relay protection tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
This high-performance Three phase relay Protection tester features a standard 4-phase voltage and 3-phase current output, integrated with a dedicated auxiliary DC power source (110V/220V) to support a wide range of on-site relay testing. Equipped with an 8.4-inch TFT true-color display, a built-in industrial keyboard/mouse, and a direct USB communication interface, it allows for seamless standalone operation or easy plug-and-play connection to an external laptop.
Main Features
Meet all test requirements on site.The Three phase relay Protection tester has standard four phase voltage and three-phase current output. It can test not only various traditional relays and protection devices, but also various modern microcomputer protections, especially for transformer differential protection and standby automatic switching device. The test is more convenient and perfect.
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All kinds of technical indexes fully meet the standard of DL / t624-1997 "technical conditions for microcomputer based test device of relay protection" issued by the Ministry of electric power.
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Classic Windows XP operation interface, friendly man-machine interface, easy and fast operation; high performance embedded industrial control computer and 8.4 inch resolution 800 × 600 TFT true color display screen, can provide rich and intuitive information, including the current working state of the equipment and various help information.
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This Windows XP system has its own recovery function to avoid system crash caused by illegal shutdown or misoperation.
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Equipped with an ultra-thin industrial keyboard and photoelectric mouse, the Three Phase Relay Protection Tester allows operators to easily complete all types of testing configurations just like an ordinary PC.
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The main control board adopts DSP + FPGA structure and 16 bit DAC output. It can generate 2000 high density sine wave per week for fundamental wave, which greatly improves the quality of waveform and the accuracy of the tester.
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The high fidelity linear power amplifier ensures the accuracy of small current and the stability of large current.USB interface is used to communicate with PC directly without any connecting line, so it is convenient to use.
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Can be connected to laptop (optional) to run.Laptops and industrial computers use the same set of software, so there is no need to relearn the operation method.
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Equipped with independent dedicated DC auxiliary voltage source output, the output voltage is 110V (1a), 220V (0.6A).It can be used for relays or protection devices that need DC power supply.
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It has the function of software self calibration, which avoids opening the case to calibrate the accuracy by adjusting the potentiometer, thus greatly improving the stability of accuracy.
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Three phase relay Protection tester Technical Parameters
AC current source (3 * 30A)
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Single phase current output (RMS) |
0 -- 30A / phase, accuracy: 0.2% ± 5mA |
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Three phase parallel output (RMS) |
0 - 90A / three phase in phase parallel output |
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Allowable working value of phase current for a long time (effective value) |
9.9A |
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Maximum output power per phase |
300VA |
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Maximum output power of three phase parallel current |
800VA |
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Maximum output allowable working time of triple parallel current |
5s |
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frequency range |
0 -- 1000Hz, accuracy 0.01Hz |
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Harmonic number |
2--20second |
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phase |
0- 360°, accuracy 0.1° |
DC current source
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DC current output |
0--± 10A / phase, accuracy: 0.5% ± 5mA |
AC voltage source
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Single phase voltage output (RMS) |
0 -- 120V / phase, accuracy: 0.2% ± 5mv |
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Line voltage output (RMS) |
0--240V |
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Phase voltage / line voltage output power |
75VA/100VA |
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frequency range |
0 -- 1000Hz, accuracy: 0.01Hz |
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Harmonic number |
2--20second |
|
phase |
0- 360°, accuracy 0.1° |
DC voltage source
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Single phasevoltage output amplitude |
0--± 160V, accuracy: 0.5% ± 5mv |
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Output amplitude of line voltage |
0--320V |
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Phase voltage / line voltage output power |
90VA/180VA |
Switching value terminal
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Switch input terminal |
8yes |
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Air contact |
1 -- 20 mA, 24 V, internal active output of the device |
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Potential reversal |
Passive contact: low resistance short circuit signal Active contact: 0-250V DC |
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Switch output terminal |
4 pairs, empty contacts, interruption capacity: DC: 0-30V/5A,AC:0-250V/5A |
Others
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time frame |
1ms -- 9999s, measuring accuracy: 1ms |
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Volume and weight of portable series single machine |
Volume 328 x 157 x 250mm, about 12.5kg |
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Power Supply |
AC220V±10%,50/60Hz,10A |
Working time of AC current
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Working current＜10A |
working hours≤60minute |
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20A＞Working current≥10A |
working hours≤70S |
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30A＞Working current≥20A |
working hours≤15S |
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Working current：30A |
working hours≤5S |
Hardware composition of the device
Built in high performance industrial control computer
The device adopts high performance industrial computer as control computer, equipped with self restoring CF card and 10.4 ″ 800 × 600 resolution TFT true color LCD display.This machine is equipped with high-performance special industrial keyboard and mouse, which can be used directly without additional peripherals. The software runs under Windows XP operating system, and the operation is simple.The device panel is equipped with two USB interfaces to facilitate data access, data communication and software upgrade.(multi function interface can be upgraded)
DSP digital signal processing system
Using 6000 series DSP controller as the core, FPGA programmable logic device output waveform, because of the DDS hardware output waveform technology, the waveform frequency and phase accuracy is quite high, at the same time, the system and industrial computer communication directly uses USB2.0 interface, making the data communication stable and reliable.
D / A and a / D conversion
Using high-precision D / a converter and active low-pass filter, the output waveform is smooth and the amplitude frequency characteristic is excellent.At the same time, the control system also retains 7-channel 7-bit A / D conversion circuit, which can collect 7-channel analog output waveforms in real time, and display the actual output waveforms, amplitude and phase on the screen through the software.
High precision linear voltage and current power amplifier
This high-precision linear power amplifier uses direct coupling to output AC/DC waveforms, square waves, harmonics, and fault transients, accurately simulating real-world short-circuit conditions. Driven by premium high-fidelity modular power devices and an advanced heat dissipation structure, it provides exceptional power redundancy and thermal capacity. The circuit features comprehensive hardware protection against overheating, overcurrent, overvoltage, and short circuits, safely allowing current open-circuits without risk of damage. For enhanced operational safety, the front panel includes clear indicators and audible buzzer alarms for current open-circuits or voltage overloads, while a unique hardware-based time-limiting circuit ensures ultra-reliable high-current testing.
Switch input and switch output
The device has 8 pairs of switch input terminals and 4 pairs of switch output terminals.Both input and output are composed of photoelectric isolator and 24 V DC relay. Its working power supply is independent 24 V working power supply, so there is 24 V DC voltage between com end and input.The following is the wiring diagram of several common input quantities:
Dedicated independent DC power output
The device is equipped with two 110V and 220V DC power supply voltage outputs, which can be switched by a toggle switch. It can only be used as a working power supply for the protection device and cannot be used as a DC operating power supply.
Empty contact with potential:
Potential reversal:
Air contact:
Device panel side panel description
1. Display screen: It is a 10.4-inch LED display screen.
2. Auxiliary power supply for the device: capable of outputting DC 0; 110V; 220V power supply, switched by dip switch, with a maximum output current of 2A, can supply power to the protection device.
3. Switch input: used to collect switch signals output by protection devices, measure time or detect signals. It can identify active and passive contacts, with a maximum DC voltage of DC220V for active contacts. When connecting active contacts, please note that+COM is the negative pole of the power supply.
4. Switching output: used to control other devices, passive nodes, with a maximum capacity of AC220V/1A.
5. Three phase current output terminals: IA, IB, IC, IN is the common terminal, and the LED is on to indicate an open circuit of the current source.
6. Four phase voltage output terminals: UA, UB, UC, UX, UN is the common terminal.
7. LED working indicator: LED flashing indicates waiting for work, while LED constant light indicates working.
8. Touchpad: Similar to a laptop touchpad, it can be fully controlled by touch in all directions. Left and right buttons: The left button is the confirm button, and the right button can view file properties.
9. Keyboard: Used for inputting fixed value data, with shortcut keys for start, end, and exit, and directional keys for up, down, left, and right selection.
10. Communication port: USB communication can be connected to an external laptop to control and operate the instrument; Network port communication (optional)
11.USB Expansion Interface: There are two USB interfaces that can be used to connect USB devices such as mice, keyboards, and USB drives.
12. RST: DSP control board reset button. When the software displays a data transmission failure or no device connection, press this button to reset the DSP board. At the same time, a USB device marker will appear in the lower right corner of the screen.
13. Power interface: connected to AC220V AC voltage through matching cables, internal insurance specifications: 10A, 5mm * 10mm; ON: power on, OFF: power off.
14. Grounding: safely grounded through a matching grounding wire.
15. Fan hole: The interior is a high-speed exhaust fan, please do not cover it when the machine is working.
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