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What is the use of the relay protection tester?

time:2021/2/21   source:华天电力  reading:253 time

The relay protection tester can complete most of the field test verification work, and can check various relays (such as current, voltage, inverse time, power direction, impedance, differential, low cycle, synchronization, frequency, DC, intermediate, time, etc.) And the microcomputer protection is verified, and the whole set of tests can be performed by simulating instantaneous and conversion faults from single-phase to three-phase. It can complete various large-scale and complex calibration tasks with a high degree of automation. 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. The 6-phase current can facilitate the three-phase differential protection test.


Protection Relay Test Set.png


Use of relay protection tester:


1. Inspection of individual components in secondary dispatch (relays such as current, voltage, time, differential, balance, negative sequence, distance, power direction, inverse time limit, frequency, synchronization, reclosing, etc.).


2. The whole group of transmission can simulate various simple or messy transient and conversion defects, and can superimpose transient DC weight on the fundamental wave.


3. Various harmonics can be superimposed at will, and the initial angle and content of superposition can be controlled online.


4. It can output different frequency AC, AC and DC by phase separation.


5. The low-cycle unit can facilitate the inspection of the low-cycle and low-voltage load shedding maintenance of the microcomputer.


6. Active scanning of various maintenance features. Power and impedance maintenance characteristic curve scanning.


7. The microcomputer main transformer maintains the active inspection of the differential ratio and harmonic braking characteristics.


8. The entire group of distance, zero sequence, and overcurrent maintenance are actively checked.


9. The user can program the inspection unit to satisfy the extra experimental usefulness and prepare the inspection of self-input equipment.


10. Various maintenance inspections for motor loss of excitation, de-excitation, reverse power and synchronization.


The relay protection tester can complete various large-scale and complex calibration tasks with a high degree of automation. 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. The 6-phase current can facilitate the three-phase differential protection test.

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