Microcomputer-based resonance elimination device main functions


Release time:

2025-02-27

Real-time monitoring: Able to monitor the voltage components of the PT open triangle at four frequencies (17Hz, 25Hz, 50Hz, 150Hz) in real time.

Real-time monitoring: Able to monitor the voltage components of the PT open triangle at four frequencies (17Hz, 25Hz, 50Hz, 150Hz) in real time.
Fault discrimination: Can distinguish between overvoltage, ferromagnetic resonance, and single-phase grounding faults.
Damping function: Can quickly eliminate ferromagnetic resonance.
Alarm and recording: Can provide alarm signals for various faults, and display, print, and save relevant information.
Communication interface: Equipped with a communication interface to transmit fault information to the control center for remote control.

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Recent information


The main factors of insufficient selection principle for small current grounding.

The automatic line selection technology for small current grounding is a challenging problem. Its difficulty mainly lies in the fact that during a single-phase grounding fault, the fault signal is small, unlike other fault types such as two-phase short circuit or two-phase grounding short circuit, which have much larger fault signals. The types of single-phase grounding faults are complex and uncertain, including full grounding faults, intermittent arc grounding, grounding with unstable resistance, and grounding through branches (high-resistance grounding), among others.