Six-Phase Microcomputer Relay Protection Tester - Yangzhou Darui
Darui Electric recommends to you
Six-Phase Microcomputer Relay Protection TesterIt adopts a high-precision D/A converter, ensuring the accuracy and linearity of current and voltage in the full range. Due to the high resolution of D/A and the high number of waveform points, the step wave output by D/A conversion already has quite good waveform quality. The subsequent stage only needs a simple low-pass filter to filter out high-frequency components, restoring a high-quality, high-stability sine wave, effectively overcoming problems such as amplitude and phase drift.
Voltage and current amplifier
The phase current and voltage do not use step-up transformers or boosters, but adopt direct output mode, allowing the current and voltage sources to directly output waveforms from DC to various frequency components, such as square waves, combined waveforms of superimposed harmonics, and fault transient waveforms, which can better simulate the current and voltage characteristics during various short-circuit faults.
The power amplifier circuit uses imported high-power, high-fidelity modular power devices as the power output stage, combined with carefully and reasonably designed heat dissipation structure, with sufficient power redundancy and thermal capacity. The power amplifier circuit has complete overheat, overcurrent, overvoltage, and short-circuit protection. When overcurrent or open circuit occurs in the current loop, or overload or short circuit occurs in the voltage loop, it automatically limits the output power, shuts down the entire power amplifier circuit, and displays an alarm signal. To prevent overheating of the power amplifier circuit due to long-term operation under high current, the device sets software time limit under high current. When the time limit expires, the software automatically shuts off the power output and gives an alarm indication.
Product aliases
Microcomputer relay protection tester, microcomputer relay protection tester, relay protection tester, six-phase relay protection tester, relay protection tester, six-phase relay protection tester, six-phase relay protection calibrator, relay protection calibrator, six-phase relay protection calibrator, relay protection instrument
Six-Phase Microcomputer Relay Protection Tester Functional Features
1. Uses the easy-to-use Windows XP operating system, with a friendly human-machine interface and simple and fast operation. To facilitate user use, a large number of keyboard shortcuts are defined, making operation "one-key to the position".
2. High-performance embedded industrial control computer and large-screen high-resolution color TFT liquid crystal display can provide rich and intuitive information, including the current working status of the device, next-step work prompts, and various help information.
3. Equipped with an ultra-thin industrial keyboard and touch mouse, you can complete various operations through the keyboard or mouse just like operating a normal PC.
4. Equipped with an external USB interface, it is convenient for data storage and software maintenance.
5. Without external equipment, it can complete all project tests, automatically display and record test data, and complete the drawing of vector diagrams and characteristic curves.
6. Uses a high-performance D/A converter, producing waveforms with high precision and good linearity, and has good transient response and amplitude-frequency characteristics. Waveform accuracy and other requirements can be guaranteed throughout the entire measurement range.
7. Can directly output AC voltage, AC current, DC voltage, DC current, with variable amplitude, phase angle, and frequency.
8. The power amplifier part adopts a new type of high-power, high-fidelity linear power amplifier circuit, with large output power and low ripple interference. When the output current reaches the maximum, the waveform can still be guaranteed without distortion or peak clipping.
9. The binary input interface can automatically adapt to passive (dry contact) and active inputs, and can automatically adapt to the polarity of active inputs, working normally within the input voltage range of ±250V.
10. Comes with a 110V/220V auxiliary DC power supply, which can power the protection device at the test site.
11. Can complete various complex calibration tasks, conveniently test and scan various protection settings, store test data in real time, display vector diagrams, print reports, etc.
12. Adopts a carefully designed chassis structure, small size, good heat dissipation, light weight, easy to carry, and convenient for mobile testing.
13. The instrument has self-protection functions, adopts a reasonably designed heat dissipation structure, has reliable and complete multiple protection measures, supports output waveform monitoring, and certain fault self-diagnosis and blocking functions.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
