Rapid installation device and installation method for small-resistance grounding complete equipment

Abstract

The invention relates to the power grid technical improvement engineering field, and provides a rapid installation device for small-resistance grounding complete equipment and an installation method of the rapid installation equipment. The installation device comprises a grounding transformer, an arc suppression coil, a small resistor and a peripheral guardrail located outside the installation device. The rapid installation device is further provided with a change-over switch, the grounding point of the grounding transformer is connected to the arc suppression coil and the small resistor in parallel through the change-over switch, the change-over switch is switched to be connected to the arc suppression coil or the small resistor to be grounded, and the change-over switch is installed on the peripheral guardrail through an installation support. The change-over switch can be quickly mounted on an upgrading and reconstruction site through the prefabricated installation support, so that main to-be-mounted parts in upgrading and reconstruction can be quickly mounted, the mounting time of the equipment can be effectively prolonged, and the power failure time of a power grid is reduced.

Description

technical field [0001] The application relates to the field of power grid technical renovation projects, in particular to a quick installation device for a complete set of small resistance grounding devices and an installation method thereof. Background technique [0002] With the development of economy and society, cables are used more and more widely. With the increase of cables, the capacitive current level of the power grid increases rapidly. , causing the capacitive current of the non-fault phase to increase, which will bring hidden dangers to the operation of the equipment, and even damage the equipment. [0003] Renovate the devices where the capacitive current exceeds the standard in the area where the arc-suppression coil grounding device is currently in operation, and transform it into a parallel-connected small-resistance grounding device for the arc-suppression coil. In the end, the new equipment was replaced and the wiring was completed. In the whole process, t...

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Problems solved by technology

[0002] With the development of economy and society, cables are used more and more widely. With the increase of cables, the capacitive current level of the power grid increases rapidly. , causing the capacitive current of the non-fault phase to increase, which will bring hidden dangers to the operation of the equipment, and even damage the equipment

[0003] Renovate the devices where the capacitive current exceeds the standard in the area where the arc-suppression coil grounding device is currently in operation, and transform it into a parallel-connected small-resistance grounding device for the arc-suppression coil. In the end, the new equipment was replaced and the wiring was completed. The whole process still has the problems of long reconstruction period and long power outage time.

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