产品简介
GDJB-1803 microcomputer relay tester main features:
1, to meet all field test requirements. With a standard six-phase current, six-phase output voltage at the same time, current 30A / phase, voltage 125V / phase. Six-phase current shunt up to 180A. A variety of both traditional and protective relay test equipment, but also a variety of modern microprocessor-based protection subjected to various tests, especially for transformer differential protection devices and equipment from the cast, testing more convenient and perfect.
2, various technical indicators fully met issued by the Ministry of DL / T624-1997 "microprocessor-based relay test equipment and technical conditions" standard.
3, the classic Windows XP user interface, friendly interface, easy operation; high-performance embedded industrial computer control and 8.4-inch resolution of 800 × 600 TFT display of foreign imports, can provide a wealth of visual information , including current working status of all the help and information.
4, the machine comes with Windows XP system recovery function, to avoid system shutdown caused by the illegal or misuse crash.
5, using high-grade stainless steel panel, explosion-proof buttons and touchpad with a mouse on the panel, key life of more than three decades.
6, the main control board with DSP + FPGA architecture, 16-bit DAC output of the fundamental can produce weekly 2000 point high-density sine wave, greatly improved the quality of waveform improve the accuracy of the tester.
7, linear power amplifier using high-fidelity amplifier, both to ensure the accuracy of small current, ensuring the stability of a large current.
8, using the USB direct interface and PC communication without any cable, easy to use.
9, can be connected to a notebook PC (optional) operation. Laptops and IPC use the same set of software, without re-learn how.
10, with GPS synchronization test function. Built-in GPS device can synchronize card (optional) connected via RS232 port and PC to achieve two remote tester synchronize swap test.
11, with separate dedicated DC auxiliary source output voltage, output voltages are 110V (1A), 220V (0.6A). DC needs to be supplied to the power supply of the relay or a protective device.
12, compared with a software self-calibration function, avoiding the need to open the case by adjusting potentiometer to calibrate precision, thereby greatly improving the stability of precision.
GDJB-1803 microcomputer relay tester hardware device
1, built-in high-performance industrial control computer
The device uses a high-performance IPC as control computer, equipped with a self-reducible CF card, 8.4 "800 × 600 resolution TFT color LCD monitor. This machine industry with high-performance dedicated keyboard and mouse without the other peripherals can be connected directly use software running under Windows XP operating system, easy to operate apparatus panel is equipped with three USB ports, you can easily access data, data communications and software upgrades.
2, DSP digital signal processing system
Using 6000 series controller as the core DSP, FPGA programmable logic device output waveform, the use of DDS technology hardware output waveform, the waveform frequency and phase accuracy is very high, while the system communicates with the IPC directly USB2.0 interface, making reliable data communication.
3, D / A and A / D converter
Using high-precision D / A converter, while using active low-pass filter, the output waveform smooth, excellent amplitude-frequency characteristics. At the same time control system also retains the 12-channel 16-bit A / D converter circuit, real-time acquisition 12-channel analog output waveforms and waveform displayed by the software, the amplitude and phase of the actual output on the screen.
4, high-precision linear voltage, current, power amplifier
Current, voltage, high-performance linear amplifier is directly coupled output so that the current, the voltage source can be directly output AC and DC waveform, and through a variety of software to calculate such as a square wave output, the combination of the waveform, the harmonics fault transient superposition waveforms, can simulate the current, voltage characteristics of various short-circuit failure. Imported high-power high-fidelity amplifier circuit modular power devices to improve power output stage, combined with careful and reasonable heat dissipation structure design, has a sufficiently large heat capacity and power redundancy, power amplifier circuit has a complete overtemperature, overcurrent, overvoltage and short circuit protection current loop allows the open, will not damage the device. Open a current indicator panel to facilitate the user to check the wiring is correct or not. At the same panel also overload or short circuit voltage indicator, when the voltage circuit (in case there is output) short-circuited, the indicator lights and start the buzzer alarm. High current limit unique hardware limit circuit, to overcome the shortcomings of traditional software limit, a large current use safer and more reliable.
5, digital input, digital output
It means a total of 8 pairs of digital input terminal, the digital output terminal 4 pairs.
Binary input, out of the amount by the optical isolators and 24V DC relay, whose work as an independent power supply 24V power supply, so between the COM terminal and binary input DC voltage of 24V.
The following are some common wiring diagram of binary inputs:
①; potentiometer empty contacts
② 电位翻转
③ 空接点
6, special independent DC power output
Unit is equipped with two 110V DC supply voltage output, end to end composition + 110V, 0V, -110V three output terminals, can only be the work of power protection devices, can not operate as a DC power source. Thus + 110V, -110V two terminals 220V DC output voltage.
GDJB-1803 microcomputer relay protection tester Panel
A panel presentation
1,8.4 "LCD
2, stainless steel keyboard
3. Touch Mouse
4, the digital input terminal
5, the digital output terminal
6, the auxiliary DC voltage output terminal
7, fuse
8, communication
9, USB
10, PA
11, the host power switch (in the left panel of the device)
12, six-phase current output terminal