Key Features
Standard 4-phase voltage and 3-phase current output; equipped with 4-phase voltage and 3-phase current output, it allows for convenient combination outputs for various types of protection tests. Each phase voltage can output 120V, and the three-phase current can output 120A. The 4th phase voltage, Ux, is a multi-functional voltage item, which can be set to output as 4 times the zero-sequence voltage, phase voltage, or any arbitrary voltage value.
Single-machine operation is convenient. The single machine is controlled via a user-friendly, flexible rotary mouse through a large LCD screen, with all Chinese characters displayed. It can complete most on-site testing and calibration tasks, can calibrate various relays and microcomputer protections, and can simulate various complex instantaneous, permanent, and switching faults for comprehensive testing. It is ready for use as soon as it is turned on, with easy and quick operation.
Dual operating modes, connect to computer for operation; through the full suite of Chinese operating software on the Windows platform, it can carry out various large-scale, complex, and highly automated verification tasks. It allows for convenient testing and scanning of various protective setpoints, real-time storage of test data, display of vector graphics, plotting of fault waveforms, online printing of reports, and more.
The software is powerful, capable of completing various highly automated complex verification tasks, such as differential protection tests, rapid power supply switching, backup power supply tests, line protection synchronous reclosing, etc. It allows for convenient testing and scanning of various protection settings, fault playback, real-time storage of test data, display of vector diagrams, and on-line report printing.
The HV702 features rich switch contacts, offering 7-way input contacts and 2 pairs of empty contact outputs. The input contacts are compatible with empty contacts and 0-250V potential contacts, capable of intelligent automatic identification. Input and output contacts can be expanded according to user requirements.
The large screen LCD display features a high-resolution 320×240 pixel matrix graphic LCD screen. All operations are set on the display screen, with both the operation interface and test results displayed in Chinese for intuitive and clear viewing.
Self-protection features include a well-designed heat dissipation structure, reliable and comprehensive protection measures, soft power startup, as well as certain fault self-diagnosis and interlock functions.
The unit features an independent dedicated DC power supply output, equipped with a single 110V and 220V adjustable DC power supply output.
Highly cost-effective, this cross-disciplinary collaborative design product integrates advanced scientific and technological achievements from multiple fields. It boasts the performance of large-scale testing equipment while offering the price point of a compact tester, delivering an excellent performance-to-cost ratio.
Rated Parameters
AC Current Output
HV 702: 0.5 precision class
AC Current Output (RMS) 0-40A
Three-phase Current Output (RMS) 0～120A
The long-term working value (RMS) for alternating current is 10A.
Large AC Current High Output Power: 420VA
Three-in-One Current High Output with High Output Power - 900VA
Three-in-One Current High Output Allowing Working Time: 10s
Frequency Range (Fundamental Wave) 20-1000 Hz
Harmonics Frequency: 1-20 times
Direct Current Output
Output Precision: 0.5 Grade
Current Output: 0 to ±10A per phase, 0 to ±30A for three-phase并联
High Output Load Voltage: 20V
AC Voltage Output
Output Precision: HV 702: 0.5 Grade
Line-to-line voltage output (RMS) 0~120V
Line Voltage Output (RMS) 0~240V
Phase Voltage/Line Voltage Output Power: 80VA / 100VA
Frequency Range (Fundamental Wave) 20-1000 Hz
Harmonic Orders: 1 to 20
Direct Current Voltage Output
Output Precision: 0.5 Grade
Phase Voltage Output Amplitude: 0 ~ ±160V
Line Voltage Output Amplitude: 0 to ±320V
Phase Voltage/Line Voltage Output Power: 70VA / 140VA
