HC-3066B Microcomputer Relay Protection Test Set
Product Introduction
The HC-3066B Microcomputer Relay Protection Test Set is a new generation product that our company has developed by extensively adopting modern technology, conducting comprehensive optimization design, and getting closer to user needs. This system embodies the rich experience accumulated from hundreds of users nationwide over more than a decade, reflecting our spirit of excellence. Its technical indicators fully meet or exceed the standard of DL/T624-1997 "Technical Conditions for Microcomputer-based Test Equipment for Relay Protection" issued by the Ministry of Electric Power. It is a national key new product and a key new product of Hubei Province*. The system integrates various technologies such as DSP, FPGA, Windows, and PC104, and can output high-precision waveforms with up to 1600 points per cycle. The new test software adopts a Windows interface, with complete functions, friendly interface, and convenient use. It can complete comprehensive testing of various relay protection devices, automatically generate test databases and test reports, with both graphics and text, which is very convenient. It is an ideal relay protection test device for power plants, power supply bureaus, scientific research institutes, and related enterprises.
With a built-in touchpad, touch screen, and a full encoding keyboard with proprietary design technology, it operates as conveniently as a laptop. Through the built-in USB interface, software can be easily upgraded and data exchanged using a USB flash drive. The new test software is based on the Windows system, uses embedded software development tools, has complete functions, friendly interface, and convenient use. The underlying hardware control performance is excellent*, with strong load capacity, and outputs three-phase current and four-phase voltage.
The HC-3066B Microcomputer Relay Protection Test Set adopts multiple technologies including advanced military digital signal processing technology and communication technology, reflecting the new trend of integration and unification.
Product Features 1. Built-in high-performance industrial control computer, using the truly embedded industrial operating system Windows. The concise and cuttable system kernel gives it stable, reliable, and efficient hardware real-time performance, achieving true integration and unification. Without the need for an external computer, it can easily complete various complex test functions. At the same time, it can prevent computer virus attacks. Even if files are mistakenly deleted, the operating system generally will not be damaged, ensuring system security.
2. It integrates various technologies such as industrial computers, Windows embedded operating system, high-performance industrial bus, touchpad, touch screen, DSP digital signal processing, FPGA, and CFC storage. With advanced dynamic tracking technology and 24-bit DA, it can output high-precision waveforms with up to 1600 points per cycle, ensuring that the error of small current (0-200mA) is less than 1 mA, completely solving the small current accuracy problem in relay protection testing for ultra-high voltage above 500KV.
3. The highly user-friendly operation interface design. The Windows system provides a familiar and friendly real industrial Windows interface, with built-in touchpad, touch screen, and a full encoding keyboard with proprietary design technology, making operation as convenient as a laptop.
4. The internal and external interaction interfaces are advanced, convenient, and fast. Through the built-in USB interface, software can be easily upgraded and data exchanged using a USB flash drive.
5. The test software is based on the Windows system, uses embedded software development tools, has complete functions, friendly interface, and convenient use. The underlying hardware control performance is excellent*. It adopts a four-layer tree-structured test database organization of plant/station, loop, protection, and test items, and flexible Office format test reports, which is conducive to the integrated and systematic management of test databases and test reports.
6. The more advanced high-precision linear power amplifier technology comprehensively upgrades the power amplifier system of the device, enhancing various protection functions such as anti-misoperation, short circuit, external power impact, and temperature over-limit, making the device more stable and reliable. It adopts a newly designed high-precision linear power amplifier, modular design of the whole machine, and a large number of optimization designs and process improvements, making it more compact and lighter. The core of the microcomputer relay protection test system is an integrated and unified independent system composed of an embedded high-performance industrial control computer, DSP, and multiple I/O control microcontrollers. Internally, a high-performance industrial bus is used for unified data transmission and control. Users interact and input/display data using the built-in touchpad, touch screen, and full encoding keyboard with proprietary design technology, and the embedded application software based on the Windows system.
7. According to the input requirements, the host sends analog quantities in real time to 7 channels of 24-bit digital-to-analog converters (DAC) through the intelligent I/O interface circuit. After smoothing and power amplification, it can simultaneously output up to three-phase currents Ia, Ib, Ic and up to four-phase voltages Ua, Ub, Uc, Ux; the current loop can connect the three-phase currents in a loop to obtain 3I0.
8. The host quickly collects 7 channels of trip/close signal switching values through the intelligent I/O interface circuit, obtaining millisecond-level protection action time, and can output 2 channels of switching value contact signals before or after the fault occurrence time according to input requirements.
