Design, construction and operation of the Fast Protection System of the windings of RFX

Author

Bellina, Fabrizio ; Chitarin, Giuseppe ; Guamieri, M. ; Trevisan, Francesco

Author_Institution

Dept. of Electr. Eng., Padova Univ., Italy

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1851

Lastpage

1854

Abstract

The protection of the windings of RFX against fast electric faults relies on an original dedicated Fast Protection System able to operate within 1 ms. The first ring of the protection chain is the fault protection system of the winding, named RGM, that consists of: about hundred highly reliable voltage and current probes, all electric signal lines and an analog-digital device where signals are processed and logic alarms are generated. RGM is an original machine that required a careful design and manufacturing work. After a long test and adjustment phase it now operates properly. It has already operated against some earth faults which, due to low level of earth current, mere not dangerous for the machine but very hard to detect

Keywords

machine windings; overvoltage protection; power system protection; superconducting magnets; RFX windings; all electric signal lines; analog-digital device; current probes; earth faults; fast electric faults; fast protection system; logic alarms; voltage probes; Analog-digital conversion; Earth; Logic devices; Manufacturing; Probes; Protection; Signal generators; Signal processing; Testing; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305621

Filename

305621