Microcomputer relay protection testerTest the action value, action time, return value, return coefficient, etc. of the universal relay manually and automatically to adapt to multiple action modes and different contact types. Including voltage (overvoltage, undervoltage), current, impedance, frequency, power direction, intermediate, time and other relays. It is possible to simultaneously superimpose 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, and 9th harmonics in current and voltage, with changes in harmonic amplitude, phase, and content.
The testing software has the following functions:
1. Universal testing function module: It can manually and automatically test the action value, action time, return value, return coefficient, etc. of universal relays to adapt to multiple action modes and different contact types. Including voltage (overvoltage, undervoltage), current, impedance, frequency, power direction, intermediate, time and other relays.
2. Component protection testing function module: Automatic testing of frequency and low cycle relay operating frequency, component protection slip interlock value, inverse time overcurrent, inverse time overexcitation, DC inverse time limit and other characteristics. The differential testing module can test the specific column braking characteristics, harmonic braking ratio, intermittent angle, DC magnetic assist and other characteristics of differential protection.
3. Line protection testing function module: can simulate various types of instantaneous and transient faults. Automatic testing of high-frequency, distance, zero sequence, and reclosing functions.
4. Testing functional modules: In order to adapt to the testing of some rare and special types of functional modules, some interfaces that can freely control the testing process are reserved for users to freely set the operation mode.
5. Recording and playback function module: It can conduct follow-up on fault data in COMTRADE format, RTDS and EMTP anti false results. Fault reproduction is beneficial for users to analyze the cause of the fault and solve it reasonably.