YHJB Three-Phase Microcomputer Relay Protection Tester
Product Overview;
Three-Phase Microcomputer Relay Protection Tester is an important testing tool to ensure the safe and reliable operation of power systems. With the rapid development of computer technology, microelectronics technology, and power electronics technology, it is an inevitable trend of technological progress to continuously introduce new high-performance relay protection testing devices by applying the latest technological achievements. Three-Phase Relay Protection Tester, based on the "Technical Conditions for Microcomputer Relay Protection Test Devices" issued by the former Ministry of Electric Power, carefully summarizes the development and production experience of previous generations of products, and adopts the latest modern digital technology, high-precision electronic devices, microcomputer systems, and new circuits and structures. It can independently complete device testing in professional fields such as microcomputer protection, relay protection, excitation, metering, and fault recording, and is widely used in scientific research, production, and electrical test sites in industries such as electric power, petrochemical, metallurgy, railway, aviation, and military.
Product Features
Three-Phase Microcomputer Relay Protection Tester is an important testing tool to ensure the safe and reliable operation of power systems. With the rapid development of computer technology, microelectronics technology, and power electronics technology, it is an inevitable trend of technological progress to continuously introduce new high-performance relay protection testing devices by applying the latest technological achievements.Three-Phase Relay Protection Tester, based on the "Technical Conditions for Microcomputer Relay Protection Test Devices" issued by the former Ministry of Electric Power, carefully summarizes the development and production experience of previous generations of products, and adopts the latest modern digital technology, high-precision electronic devices, microcomputer systems, and new circuits and structures. It can independently complete device testing in professional fields such as microcomputer protection, relay protection, excitation, metering, and fault recording, and is widely used in scientific research, production, and electrical test sites in industries such as electric power, petrochemical, metallurgy, railway, aviation, and military.
1. This device uses a high-speed, high-performance digital control processor as the control microcomputer, and applies double-precision algorithms in software to generate high-precision waveforms of any phase.2. It uses a high-speed, high-bit D/A converter to ensure the accuracy and linearity of current and voltage over the full range.
3. 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 structures, providing sufficient power redundancy and thermal capacity.
4. The switch input circuit is compatible with both dry contacts and 0-250V potential contacts.
5. The device uses a 320×240 dot-matrix high-resolution blue backlight LCD as the display.
6. The device is equipped with a dedicated adjustable DC power supply output on the chassis bottom plate, with 110V and 220V ranges, which can be used as an auxiliary power supply for field tests.
Product Parameters;
AC CurrentOutput Accuracy: Relay Protection Tester: 0.5 class
Three-phase current output (RMS) 0～40A
Three-phase current output (RMS): 0～120A Allowable continuous working value of phase current (RMS): 10A Maximum output power of phase current: 420VA
Maximum output power when three-phase current is at maximum output: 900VA Allowable working time when three-phase current is at maximum output: 10s Frequency range (fundamental): 20～1000Hz Harmonic order: 1～20
DC Current Output;
Output Accuracy: 0.5 class
Current Output: 0～±10A / per phase, 0～±30A / three phases in parallel
Maximum output load voltage: 20V
AC Voltage Output
Output Accuracy: Relay Protection Tester: 0.5 class
Phase voltage output (RMS): 0～120V
Line voltage output (RMS): 0～240V
Phase voltage/Line voltage output power: 80VA / 100VA
Frequency range (fundamental): 20～1000Hz
Harmonic order: 1～20
DC Voltage Output;
Output Accuracy: 0.5 class
Phase voltage output amplitude: 0～±160V
Line voltage output amplitude: 0～±320V
Phase voltage/Line voltage output power: 70VA / 140VA
1. This device uses a high-speed, high-performance digital control processor as the control microcomputer, and applies double-precision algorithms in software to generate high-precision waveforms of any phase.
2. It uses a high-speed, high-bit D/A converter to ensure the accuracy and linearity of current and voltage over the full range.
3. 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 structures, providing sufficient power redundancy and thermal capacity.
4. The switch input circuit is compatible with both dry contacts and 0-250V potential contacts.
5. The device uses a 320×240 dot-matrix high-resolution blue backlight LCD as the display.
6. The device is equipped with a dedicated adjustable DC power supply output on the chassis bottom plate, with 110V and 220V ranges, which can be used as an auxiliary power supply for field tests.
