Protection mechanism for modern telecommunications

Author

Kamat, Vithal N.

Author_Institution

Baroda Electr. Meters Ltd., Gujarat, India

fYear

1997

fDate

3-5 Dec 1997

Firstpage

45

Lastpage

50

Abstract

This paper describes the general techniques for protection against transient surges as well as continuous over-voltages. It also discusses at length the characteristics of the various protection devices and their influence on each other when used in combination. This paper describes ways in which to increase the reliability of these devices which are passive under normal operating conditions. Next, a case study is presented with a protection circuit consisting of a gas discharge tube, a varistor, and a fuse and the observations and characteristic curves are detailed. Finally, the output waveforms of the surge testing are presented

Keywords

electric fuses; electronic switching systems; gas-discharge tubes; overvoltage protection; reliability; surge protection; varistors; characteristic curves; continuous over-voltages; digital switching systems; fuse; gas discharge tube; output waveforms; protection circuit; protection devices; protection mechanism; reliability; surge testing; telecommunications; transient surge protection; varistor; Circuit faults; Clouds; Impedance; Lightning; Power system transients; Short circuit currents; Surge protection; Switches; Switching systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Interference and Compatibility '97. Proceedings of the International Conference on

Conference_Location

Hyderabad

Print_ISBN

81-900652-0-3

Type

conf

DOI

10.1109/ICEMIC.1997.669756

Filename

669756