THYRISTOR-CONTACT PLANTS FOR REGULATION OF VOLTAGE UNDER LOAD IN NETWORKS WITH INSULATED NEUTRAL

The aim is to develop and investigate the thyristor-contact plants (TCP) with auxiliary transformers for regulation of the voltage under load (RUL) in the networks with insulated neutral. The principles of constructing TCP permitting to decrease the current load and to switch on the electric wear of the contacts and to increase the regulation accuracy have been developed. The mathematical model of TCP has been developed. The dependences of the time zones in the natural communication of the thyristor keys upon the load character have been determined, the multistage algorithms for transfer of TCP into the different operation conditions have been developed. The experimental acting prototype of TCP for RUL of the power transformers in the networks with insulated neutral has been introduced.Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio