Three phase microcomputer relay protection tester

1threeMicrocomputer based relay protection testerMain Features

uThe flexible combination of voltage and current output can achieve a 4-phase voltage and 3-phase current output mode, which can be freely combined to achieve the conventional 4-phase voltage and 3-phase current output mode. It is compatible with various traditional testing methods, and can also be conveniently used for three-phase transformer differential testing, plant power fast switching, and backup automatic switching testing.

uThe operation mode device can be directly connected to a laptop or desktop computer for convenient, fast, and stable performance.

uThe output end of the new high fidelity linear power amplifier has always insisted on using high fidelity and high reliability modular linear power amplifiers, rather than switch type power amplifiers, to improve performance. It will not cause high or medium frequency interference on the test site, and ensures smooth waveform accuracy from high current to low current throughout the entire process.

uThe output part of the high-performance host is controlled by DSP, which has fast computing speed, strong real-time digital signal processing capability, wide transmission bandwidth, and controls high-resolution D/A conversion. The output waveform has high accuracy, low distortion, and good linearity. The device adopts a large number of advanced technologies and precision component materials, and has undergone specialized structural design, resulting in small size, light weight, comprehensive functions, easy portability, and can work immediately after startup. Flow testing is very convenient.

uThe software has powerful functions and can complete various large-scale complex verification tasks with high automation levels. It can easily test and scan various protection settings, perform fault playback, store test data in real time, display vector graphics, and print reports online. 6-phase current can facilitate three-phase differential protection testing.

uThere is an independent DC power output with one 110V and 220V DC power output.

uThe complete interface device is equipped with a USB communication port, which can communicate with computers and other external devices.

uThe sound self-protection function of the cooling structure design is reasonable, the hardware protection measures are reliable and complete, and it has functions such as power soft start, software self diagnosis of faults, and output locking.

two、threeMicrocomputer based relay protection testerrated parameters

uparameter

u AC current output

output accuracy Level 0.2

Phase current output (effective value) 0～40A

Triple current output (effective value) 0～120A

Allowable operating value (effective value) of phase current time 10A

High output power of phase current 420VA

High output power when outputting three-phase current 900VA

Allowable working time for triple current output 10s

Frequency range (fundamental wave) 20～1000Hz

harmonic order 1～20time

u DC current output

Output accuracyLevel 0.2

Current output0～±10A/Each phase, 0 to ±30A/Three and one

Output load voltage20V

u AC voltage output

Output accuracyLevel 0.2

Phase voltage output (effective value)0~120V

Line voltage output (effective value)0～240V

Phase voltage/line voltage output power80VA/ 100VA

Frequency range (fundamental wave)20~1000Hz

Harmonic frequency1～20time

u DC voltage output

Output accuracyLevel 0.2

Phase voltage output amplitude0～±160V

Line voltage output amplitude0～±320V

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

u openMeasurement of customs clearance and time

u volumetric weight