Wuhan Wugao Electric Measurement Co., Ltd

WDJB-702 Single-chip Relay protection comprehensive tester (three-phase single-chip microcomputer)

1.With 4-phase voltage and 3-phase current output, it is convenient to carry out various combination outputs for various types of protection tests. The single-phase voltage can output a maximum of 120V, a single-phase current can output a maximum of 40A (10 seconds), and the current three can output 120A. The fourth-phase voltage Ux is a multi-function voltage item, which can be set to 4 kinds of 3U0 or synchronous detection voltage, or Output at any voltage value.

2.Single machine is easy to operate. It can complete most of the test verification work on site, and can verify various relays and microcomputer protections, and can simulate various complex transient, permanent, and transformable faults for a whole group of tests. It can be used after booting, and the operation is convenient and fast.

3.Dual operation mode, connected to the computer to run, can carry out various large-scale complex and higher automation calibration work, can easily test and scan various protection settings, can store test data in real time, display vector diagrams, and draw faults Waveforms, online print reports, etc.


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Product Details

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AC current output

Phase current output (effective value)     0~40A,   Output Precision  0.2 degree

3 phase parallel current output (effective value)                0~120A

A Long-time Phase current                               10A

Maximum output power of Phase current                     450VA

Maximum output power of 3 parallel current                   900VA

Maximum Permitted work time of 3 parallel current             10S

Frequency range ( fundamental)                             20~1000Hz

Harmonic time                                             2~20

DC current output

Current output                 0~±10A / phase,  0~±30A / 3 parallel

Output Precision                                          0.5 degree

AC voltage output

Phase voltage output (effective value)     0~120V   Output Precision   0.2 degree

Line voltage output (effective value)                         0~240V

Phase voltage / Line phase output power                    80VA / 100VA

Frequency range (fundamental)                            20~1000Hz

Harmonic time                                       1~20

DC voltage output

Phase voltage output range              0~±160V     Output Precision  0.5 degree

Line voltage output range                                  0~±320V

Phase voltage / Line phase output power                    70VA / 140VA

10 path digital input and 8 path digital output

Time measuring range         0.1ms ~ 9999s ,accuracy of measurement <0.1ms


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