Dry hollow reactor is an inductive device of the electrical power system, which has important roles in many respects such as current limiter, regulator, reactive compensation, and so on Dry Hollow Reactor is one of the new type reactors which was developed in recent years.

Development and application of design software of dry-type air-core reactor;

Analysis on tree discharge on the surface of dry-type air-core reactors is made through a series of characteristic tests on breakdown of epoxy resin compound insulation, surface discharge test on reactor model, electric field calculation Of insulation structure and study on monitoring and prevention of surface discharge on reactors.

With the parameters of a real dry-type air-core reactor, the emulation analysis verifies that the impulse-voltage method is suitable to test its turn-to-turn insulation.

A coupled magnetic-circuit-fluid-thermal finite element model is proposed for thermal analysis of dry-type air-core reactor.

The power frequency magnetic field of 10 kV air-core reactor is an important interference source in 110 kV and 35 kV substations.

Based on coupled field-circuit model, the magnetic field and inductance of air-core reactor are computed by using finite element software.

For the loss of circulating current in running dry type air core reactor which may lead to faults, a method of “equal current+equal turns density” was put forward in order to distribute the current uniformly.

For the requirements of air-core reactor\'s rapid detection,this article has designed air core reactor inner surface of the rapid detecting instrument\'s drive system and control system.

The air core reactor plays an important role in the power system.