Air-core reactor and tandem air-core reactor

Abstract

The invention provides an air-core reactor and a tandem air-core reactor. The air-core reactor includes an epoxy barrel, inductance coil bags and voltage measuring capacitors. The epoxy barrel is internally hollow, the number of the inductance coil bags is a plurality, and the plurality of inductance coil bags are located in the epoxy barrel and are in series connection with each other. The plurality of inductance coil bags are provided with high voltage terminals and low voltage terminals, and the high voltage terminals and the low voltage terminals are led out of the epoxy barrel. The numberof the voltage measuring capacitors is a plurality, the plurality of voltage measuring capacitors are located in a space defined by the plurality of inductance coil bags, the plurality of voltage measuring capacitors are in series connection with each other and are provided with high voltage terminals and low voltage terminals, and the high voltage terminals and the low voltage terminals are ledout of the epoxy barrel. The air-core reactor can significantly save the work time of voltage withstanding tests and save test sites. The air-core reactor is conducive to the mounting of an ultra-high-voltage device on a vehicle, platformization and centralization of the ultra-high-voltage device, and the air-core reactor has good practicality.

Description

technical field [0001] The invention relates to the technical field of withstand voltage test of electric equipment, in particular to an air-core reactor and a series air-core reactor. Background technique [0002] High-voltage withstand voltage tests are required for power equipment handover or preventive tests. During the test, an air-core reactor is used for compensation, and a capacitive voltage divider of a corresponding voltage level needs to be connected in parallel to realize voltage monitoring. In the prior art, it is often necessary to equip a voltage divider with one reactor. [0003] When conducting UHV tests, multiple reactors are often stacked in series to meet the requirements. The corresponding capacitive voltage divider needs to be set up at the same time as the reactor is set up, which makes the preparation work before the test and the finishing work after the test time-consuming and laborious. And the voltage divider will occupy a large part of the test ...

AI Technical Summary

Problems solved by technology

It is necessary to set up the corresponding capacitive voltage divider at the same time as the reactor is set up, which makes the preparation before the test and the finishing work after the test time-consuming and laborious.

And the voltage divider will occupy a large part of the test site, which will bring inconvenience to other work

In addition, due to the existence of the voltage divider, it is not conducive to the vehicle-mounted, platform-based, and centralized equipment

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