Product Details

Microcomputer Relay Protection Tester



The microcomputer relay protection tester uses the principle of arbitrary waveform signal generator. Duanyi Electric produces microcomputer relay protection tester with 4096 points per cycle for fitting, resulting in low waveform distortion and minimal requirements for smoothing filters, avoiding a series of problems (such as inconsistency in operation of similar products, transient characteristics, amplitude-frequency characteristics, phase-frequency characteristics, etc.).

The relay protection test box is produced and sold by Yangzhou Darui Electric Technology Co., Ltd.;





The output amplitude can change slowly or abruptly. Both the current and relay protection tester voltage amplifiers use direct amplification, which can truly simulate the transient process during system faults. The frequency resolution of the sine wave signal is 0.0003Hz, allowing for debugging of frequency relays, especially for df/dt experiments (Note: the "step/time" microcomputer-controlled relay protection tester function keys can perform du/dt, di/dt, dp/dt, df/dt experiments, etc.).



Product Features

a. DC testing: testing of DC relay intermediate and time relays.

b. AC current and voltage testing: automatic and manual testing of action and return values for relays such as AC current, voltage, and power direction.

c. AC time testing: testing of action time for relays started by AC current, voltage, and frequency, as well as protection action time for distance, zero sequence, etc.

d. Testing of frequency relays.

e. Testing of harmonic superposition.

f. Testing of differential protection.

g. Testing of synchronization devices: relay protection tester mainly tests the amplitude and phase of synchronization devices.

h. Manual and automatic testing of impedance relay impedance characteristics and precision current curves.

i. Testing of inverse time relays.

j. Setting of clock and calendar, and testing of millisecond meters.

k. Simulating DC decaying components.

l. Performing whole group experiments.

m. System oscillation.