Microcomputer relay protection tester

XZC-702Microcomputer relay protection testerMain features and parameters

The standard 4-phase voltage and 3-phase current output has a 4-phase voltage and 3-phase current output, which can be easily combined for various types of protection tests. Single phase voltage can output up to 120V, single-phase current can output up to 40A (10 seconds), combined current can output up to 120A, and the fourth phase voltage Ux is a multifunctional voltage item that can be set to 4 types of 3U0 or detect synchronous voltage, or output any voltage value.

U single machine operation is convenient. The single machine can be operated by rotating the mouse conveniently and flexibly through the large screen LCD display, all displayed in Chinese. It can complete most of the on-site testing and verification work, verify various relays and microcomputer protections, and simulate complex instantaneous, long-term, and conversion faults for whole group testing. Ready to use upon startup, easy and fast to operate.

Dual operation mode, connected to a computer and running through the full set of Chinese operating software on the Windows platform, can perform various large-scale, complex, and highly automated verification tasks. It can easily test and scan various protection settings, store test data in real time, display vector graphics, draw fault waveforms, and print reports online.

The U software function can complete various large-scale complex verification tasks with high automation level, such as three-phase differential test, plant power fast switching, backup automatic switching test, line protection check synchronous reclosing, etc. It can conveniently test and scan various protection settings, perform fault playback, store test data in real time, display vector graphics, online printing reports, etc.

The U switch has a variety of 702 switch contacts, with 7 input contacts and 2 pairs of output contacts. The input contacts are compatible with empty contacts and 0-250V potential contacts, and can be intelligently and automatically recognized. The input and output contacts can be expanded according to user needs.

The machine adopts a 320 × 240 dot matrix large screen high-resolution graphic LCD display, and all operation processes are set on the display screen. The operation interface and test results are displayed in Chinese, with intuitive and clear display.

U self-protection adopts a reasonably designed heat dissipation structure, and has reliable multiple protection measures and power soft start, as well as certain fault self diagnosis and locking functions.

U has an independent DC power output device with one 110V and 220V DC power output.

U's high cost-effectiveness belongs to cross disciplinary joint design products, which integrate advanced technological achievements from multiple disciplines. Combining the performance of a large testing instrument with the price of a small testing instrument, it has a high cost performance ratio.

rated parameters

AC current output

Output accuracy level 0.5

Phase current output (effective value) 0-40A

Triple current output (effective value) 0-120A

Long term allowable operating value (effective value) of phase current 10A

High phase current output power of 420VA

When the current output is high, the output power is 900VA

Allowable working time of 10 seconds when the output of the triple current is high

Frequency range (fundamental) 20-1000Hz

Harmonic order 1-20 times

DC current output

Output accuracy level 0.5

Current output: 0~± 10A per phase, 0~± 30A per triple junction

Large output load voltage 20V

AC voltage output

Output accuracy of 0.2 level

Phase voltage output (effective value) 0-120V

Line voltage output (effective value) 0-240V

Phase voltage/line voltage output power 80VA/100VA

Frequency range (fundamental) 20-1000Hz

Harmonic order 1-20 times

DC voltage output

Output accuracy level 0.5

Phase voltage output amplitude 0~± 160V

Line voltage output amplitude 0~± 320V

Phase voltage/line voltage output power 70VA/140VA