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Performance of High Voltage Protection cards used in Digital Telephone Exchanges

Reddy, B Subba and Verma, R Alok and Palit, Sanjeevan and Panda, Anwesha (2013) Performance of High Voltage Protection cards used in Digital Telephone Exchanges. In: IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (IEEE CATCON), DEC 06-08, 2013, pp. 128-133.

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Official URL: http://dx.doi.org/10.1109/CATCON.2013.6737485


Surge voltages and currents in low ac power circuits essentially occur due to natural lightning and switching phenomena. The other source of surge occurrence is probably due to the interaction of power systems and communication system. The damages caused due to these phenomena to telecom equipment or modules create undesirable loss of service to the society. This paper presents the simulation and experimental investigations carried out on two types of high voltage high current protection cards used in digital telephone exchanges. Special efforts were made to fabricate the surge generators as per the prescribed standards. The experimental results on the performance of two types of high voltage protection (HVP) cards for combination wave (1.2/50 mu s open circuit voltage and 8/20 mu s short circuit current) and ring wave surge voltages (100kHz 0.5 mu s) are studied, analyzed and presented.

Item Type: Conference Proceedings
Publisher: IEEE
Additional Information: Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Keywords: lightning surges; telecommunication; high voltage protection; ring wave; combination wave; surge generators
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 25 Aug 2016 10:31
Last Modified: 25 Aug 2016 10:31
URI: http://eprints.iisc.ac.in/id/eprint/54313

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