Relay protection tester in the original power "issued by the Ministry of the microcomputer relay protection test device technical conditions" on the basis of widely listened to the views of users, conscientiously sum up the experience in development and production of previous generations, and the newest modern digital technology, high precision electronic devices, computer systems and new lines, new development out. It can independently complete device testing in the field of computer protection, relay protection, excitation, metering, fault recording and other specialized fields, and is widely applied in the research, production and electrical test field of power, petrochemical, metallurgy, railway, aviation, military and other industries.
1. Embedded host, equipped with large scale programmable logic device (CPLD)
The relay protection testing instrument with high speed and high performance embedded computer system equipped with CPLD, fast response speed, wide b and width, high density sine wave fitting 500 points per cycle of Jiboke, the output waveform is smooth, no harmonic component. Due to the large number of output points and the minimal distortion of the waveform through the precise filtering circuit, even for the harmonic output, even the 9 harmonic and 450Hz can reach the high density of 55 points per week. The software has very strong man-machine dialogue and online help function, which can control any test parameters.
2. Single machine 8 D/A output at the same time
The 16 bit high precision DAC chip is used to ensure the high precision of the fitting wave and the good linearity. The GWJB-902 relay protection tester can output 8 analog signals at the same time, which can satisfy all directional testing of transformer protection, backup power supply and so on.
3. High precision linear power amplifier, and output 5 phase voltage and 3 phase current simultaneously
The carefully designed voltage and current amplifier realizes the sharing of AC / DC, and the output level adopts unique high precision superlinear amplification technology. It has high accuracy and good reliability. At the same time, it outputs 5 phase AC voltage and 3 phase AC current. The AC voltage output of each phase is as high as 130V and 70VA, and the AC current is all output and up to 90A. The output of DC voltage can reach 300V and 130VA.
4. Large screen LCD, complete interface, integrated single machine box structure of host computer
This type of relay protection tester adopts a 640 x 480 dot matrix 8 'large screen high resolution graphic LCD screen, and the operation interface and test results are all Chinese, showing intuitive and clear. The whole operation process is done through 23 buttons on the panel. All the interfaces are displayed in Chinese and are set on the display. The 23 keys of the panel are beautiful, extremely humanized, simple and convenient to operate, and do not require computer knowledge, so they are easy to master.
The device can be operated with a keyboard and an external keyboard. It also provides 2 USB ports and 2 RS232 ports, which can communicate with the external computer and other devices. Only need to exchange 220V power supply and start working. It is convenient to carry and is very suitable for the flow test and field work.
5. Auxiliary DC source (selection)
This type of relay protection tester can be equipped with independent two sets of DC power supply, a group of 110VDC/1.0A, and another group of 220VDC/0.6A, which are automatically output at the same time. It can be used to protect the power supply without setting up and adjusting software.
6. Intelligent self protection
The latest design of the heat dissipation structure to ensure the best ventilation. At the same time, it can also judge the safety phenomenon of the device itself, such as over current, overpressure, overload, short circuit, high temperature and data abnormality. Even if the operation is wrong, it will not damage the device. In addition, when the danger signal, such as the external voltage, enters the tester through the terminal, the alarm indicator light is reddened and the power amplifier is automatically cut off.
7. Rich in connection and powerful in software
This type of relay tester has eight switch input (A B C R a B C R) and 4 circuit switch output. The input connection is compatible with the space contact and the 0-250V potential contact, which can be intelligently identified. The device is operated by a large screen LCD screen with 23 keys on the panel. All the interfaces are displayed in Chinese. It is able to complete the verification of most of the tests in the field. It is also convenient to complete the protection test of foreign manufacturers such as ABB, Siemens, AREVA and so on.
The device can be operated vertically and horizontally, and can be operated offline or externally connected to PC. The test results can be automatically sorted and recorded into test reports for inspection, or U disk can be directly saved and sent to external PC machine for editing, printing and so on. The software upgrade is simple and fast, directly through the U disk upgrade or the external PC machine, without changing any hardware.
The function of software aided calculation is powerful. It can automatically calculate positive, negative and zero sequence voltage and current, one or two side active power, reactive power and power factor.
Main rated parameter
Other rated parameter
|機箱尺寸：長×寬×高||360mm ×195mm ×375mm|