Iron core displacement track device for high-voltage soft starter

Abstract

The invention relates to an iron core displacement track device for a high-voltage soft starter. The device comprises a track rod, a track sleeper and fixing plates; the track rod is installed on thetrack sleeper; the fixing plates are arranged at the two ends of the track rod; an iron core contacts with the track rod through an idler wheel; the iron core can freely move in a track direction; thetrack rod and the idler wheel are both pure steel cylinders; a layer of epoxy resin glue is applied on the track sleeper along the two sides of the track rod in a sealed manner to fix the track rod.According to the iron core displacement track device for the high-voltage soft starter, the technical difficulties that an iron core generates electromagnetic traction force, pot flow, frictional resistance, heat and the like when high voltage is introduced into a coil are fully considered and solved; electromagnetic resistance is minimized; the iron core can be dragged to slide in the coil through the track device for a 2000 KW-below high-voltage motor no matter for 6KV or 10KV; and therefore, the problem that the iron core of an electric reactor cannot be adjusted is solved, and the output voltage of the electric reactor can be stably adjusted.

Description

Technical field [0001] The invention relates to the technical field of electrical equipment control, in particular to a high-voltage soft starter iron core displacement track device. Background technique [0002] In construction, metallurgy, mining, petrochemical, power generation and other industrial fields, high-power high-voltage motor equipment has been widely used. When the motor starts, the starting inrush current is very large, which will interfere with the power grid and other loads, and even endanger the safe operation of the power grid In order to solve this problem, various high-voltage soft-start methods and high-voltage soft-start equipment are required. High-voltage soft-start equipment can generally be divided into soft starters such as hydraulic resistance, magnetic control, and thyristor. [0003] Liquid resistance soft starter is based on the principle of electrolyte forming resistance. The resistance of the electrolyte is proportional to the distance between the ...

AI Technical Summary

Problems solved by technology

However, since the reactor is mainly composed of an iron core and a coil, and these two components are generally fixed parts, which cannot be moved or the movement range is small, the inductance value of the reactor is poorly adjustable. In addition, using this method for soft starting During the process, the voltage at the motor terminal will also drop, which will easily lead to insufficient starting torque, and a secondary impact may occur during the starting process. These shortcomings also greatly restrict the promotion of the reactive soft start method. Improvement of the reactor-type soft starter to solve the aforementioned problems, in order to facilitate the popularization and use of the reactor-type soft starter and improve the economic benefits of industrial production

Images