Key Features

Standard 4-phase voltage and 3-phase current output; equipped with 4-phase voltage and 3-phase current output, it facilitates various combinations for protection tests of different types. Each phase voltage can output 120V, the three-phase current can output 120A, and the 4th phase voltage Ux serves as a multi-functional voltage item, which can be set to output 4 times the zero voltage (3U0),同期电压, or any arbitrary voltage value.

Single-unit operation is convenient, with the unit operated through a flexible rotating mouse on a large LCD screen, featuring full Chinese display. It can complete most on-site testing and calibration tasks, including the calibration of various relays and microcomputer protections. It can also simulate various instantaneous, permanent, and transition faults for comprehensive tests. Ready to use upon startup, offering easy and quick operation.

Dual operation modes, connecting to computers for operation - Through a complete set of Chinese operating software on the Windows platform, it is capable of performing various large-scale, complex, and highly automated verification tasks. It allows for easy testing and scanning of various protective setpoints, real-time storage of test data, display of vector diagrams, plotting of fault waveforms, and online printing of reports.

The software boasts powerful capabilities to handle a variety of highly automated and complex verification tasks, such as differential protection tests, power supply quick cuts, backup-to-self power tests, and line protection synchronous reclosing. It allows for convenient testing and scanning of various protection settings, fault playback, real-time storage of test data, display of vector graphs, and online report printing.

The HV702 features rich switch contacts, offering 7-way input contacts and 2 pairs of open contacts. The input contacts are compatible with open contacts and 0-250V potential contacts, capable of intelligent automatic identification. Input and output contacts can be expanded according to user requirements.

The LCD screen features a 320×240 pixel array large screen with high-definition graphic LCD display. All operational processes are set on the screen, with 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 locking functions.

The unit is equipped with a dedicated DC power supply output, featuring a 110V and a 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 combines the performance of large-scale testing equipment with the price point of small-scale testing equipment, offering an excellent performance-to-price ratio.

Rated Parameters

AC Current Output

Output Precision: HV 702: 0.5 Class

AC Current Output (RMS) 0～40A

Three-phase Current Output (RMS)   0~120A

The working value (RMS) for AC current is 10A.

Large AC Current, High Output Power: 420VA

Tri-meridian Current offers high output power at high current, 900VA

Three-in-One Current's High Output Permits Work Time of 10 Seconds

Frequency Range (Fundamental Frequency)   20 to 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 in three-phase parallel

High Output Load Voltage: 20V

AC Voltage Output

HV 702: 0.5 grade accuracy

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 Range: 0 ~ ±320V

Phase Voltage/Line Voltage Output Power: 70VA / 140VA