The research on load automatic ratio control contactless tap changer switch on distributing transformer

Author

Yu-Lin, Zhao ; Jia-Hui, Li ; Shou-Tian, Dong ; Yan-Ling, Lv ; Jing, Ni ; Jing-Jing, Gao ; Xiang-Feng, Xu

Author_Institution

Electr. Eng. Dept., Northeast Agric. Univ., Harbin

Volume

1

fYear

2004

fDate

14-16 Aug. 2004

Firstpage

280

Abstract

This paper presents working principles and experimental results of the loaded automatic ratio control contactless convert tap-off switch which fits 10/0.4 kW distributing transformer. The device consists of two units: contactless convert tap-off switch, and automatic voltage regulator. The device fits the situation that the load´s fluctuation is significant. Because when the device convert the tap-off, it employs the way that the SSR is switched on when voltage through zero and switched off when current through zero. The theoretical analysis and laboratory experiment show that the scheme is practicable. After canceling the transition resistance, the impulse current still in the permitted scope

Keywords

load regulation; on load tap changers; power semiconductor switches; semiconductor relays; voltage regulators; 0.4 kV; 10 kV; automatic voltage regulator; contactless convert tap-off switch; contactless tap changer switch; distributing transformer; impulse current; load automatic ratio control; load fluctuation; solid-state relay; tap joint switch;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International

Conference_Location

Xi´an

Print_ISBN

7-5605-1869-9

Type

conf

Filename

1377827