Arc Suppression Coil Grounding

The turn regulating arc suppression coil is provided with multiple taps, and the tap of the arc suppression coil is adjusted by the on load regulating switch to change the inductance value, so as to realize the output of the induced current to the ground and realize the purpose of automatic tracking compensation.

The compensation regulation mode of the complete set of turn regulating arc suppression coil belongs to pre regulation, that is, before single-phase grounding, the arc suppression coil has been adjusted to the best compensation state according to the capacitive current of the system power grid, and its grounding compensation response time is the short-circuit damping resistance time of thyristor, with fast response speed and good compensation effect; 
 the iron core and coil have stable structure, long service life, no non-linear harmonic interference, no noise, large capacity, simple structure, reliable operation, rich operation experience and large use; 
 the device can be equipped with the function of small current grounding line selection. Taking advantage of the structural characteristics of turn adjustable arc suppression coil, the unique active power respect method, standard comprehensive line selection method and parallel medium resistance line selection method are adopted in the grounding line selection. At present, it is the most effective and accurate line selection method, so that the accuracy of grounding line selection can reach 100% 


1. Compensation adjustment mode: preset

2. Capacitance current measurement error: ≤ 2%

3. Adjustment stage: ≤ 25

4. Residual current in case of single-phase grounding fault: ≤ 5A

5. Displacement voltage during system operation: ≤ 15%

6. Grounding response time: ≤ 60ms

The complete set of turn regulating arc suppression coil is generally composed of grounding transformer, turn regulating arc suppression coil body, on load section switch, microcomputer controller, control panel, damping resistance box, current transformer, voltage transformer, lightning arrester, isolation knife switch, etc.

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