What are the arc suppression coil tuning methods
Publisher: Administrator Release time: 2019-3-5
The tuning method of the arc suppression coil used in China's field is to manually adjust the taps of the arc suppression coil according to the established scheme, so that the degree of detuning, residual current and neutral point displacement voltage of the power grid are within the specified range. .
The automatic tracking compensation arc suppression device is to change the inductance of the arc suppression coil according to the change of the grid capacitance current by the automatic device, so that the single-phase grounding capacitor current can be effectively compensated from the inductance current of the arc suppression coil. The working principle of the automatic device is based on the online real-time measurement of the voltage and current signals of the neutral point of the power grid, and based on the relationship between the grid detuning degree and the signal phase angle. The position of the pressure type arc suppression coil is automatically tracked and tuned, so that the system always runs within the set detuning range.
In China, the theoretical analysis and application technology research of the arc suppression coil grounding method for distribution network have been carried out in China. According to the current development of controllable reactors, several sets of automatic tracking compensation arc suppression voltage limiting devices have been introduced accordingly. Adjustable iron core air-gap type arc suppression coil, on-load adjustable turn arc suppression coil , thyristor switching capacitor type arc suppression coil, high short-circuit resistance transformer type arc suppression coil, DC assisted arc suppression coil (or bias magnetic Type arc suppression coil), magnetic valve type arc suppression coil, three-phase five-column type arc suppression coil and so on.