Capacitor current generator for debugging arc-suppression coil

Abstract

The invention, which relates to the field of auxiliary equipment for testing of an arc-suppression coil, provides a capacitor current generator for debugging an arc-suppression coil. A control panel (1) is arranged at the upper part of a chamber of a box body (10; a mounting plate (16) is arranged at the lower part of the chamber of the box body; and an output module and a control module are respectively arranged at the mounting plate to test a primary operation situation and a secondary control situation. Therefore, the blank that the compensation effect of the arc-suppression coil can not be tested currently can be filled and the operation, maintenance, and repairing efficiency of the arc-suppression coil is improved; and the capacitor current generator has the great popularization value. The capacitor current generator having advantages of simple structure and convenient operation is suitable for promotion and application in a large range.

Description

【Technical field】 [0001] The invention relates to the field of arc-suppression coil test auxiliary equipment, in particular to a capacitive current generator for arc-suppression coil debugging. 【Background technique】 [0002] It is known that with the expansion of urban and rural power grids and the increase of cable outlets, the capacitive current of the system to the ground increases sharply, and the fault current flowing through the single-phase grounding is relatively large, the arc is not easy to extinguish, and it is easy to generate intermittent arc grounding overvoltage, resulting in accidents The trip rate has increased significantly. [0003] In order to solve the above problems, the national power grid generally adopts the resonant grounding method, that is, the arc suppression coil is installed at the neutral point. When single-phase grounding occurs, the inductive current generated by the arc suppressing coil compensates the capacitive current at the fault poin...

AI Technical Summary

Problems solved by technology

At present, our usual test method is to add current and voltage to the terminal block of the arc suppression coil controller, and conduct a simulation test. It can only be observed whether the voltage and current display and the operation indication signal of the arc suppression coil automatic compensation device are normal, and it cannot reflect whether the arc suppression coil automatic compensation device is normal or not. The tracking compensation ability of the arc coil cannot fully control its operating state, and it also lays hidden dangers for the occurrence of defects in the tracking compensation.

[0006] After investigation, it was found that there were no instruments meeting the requirements available for purchase in the market

At the same time, when the manufacturer debugs on site, only a few capacitors are connected in series on the arc suppression coil for testing, the debugging equipment is simple, the test results are unreliable, and the cost is high, etc.

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