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A Protection Scheme for Standard Equipment to Avoid Harmful Random Large Current

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Abstract:

In the process of detecting and calibrating for power equipments, it appears a phenomenon that standard equipment is damaged by harmful random large current from tested equipment. This danger signal mainly occurs in the transient state of tested equipment, i.e., in a short time after starting to output new set current. This paper proposes a method for protecting standard equipment to eliminate damage caused by random large current. Its content mainly describes one of the key parts of this scheme including accurately sampling and transient signal removing intelligently in details. Design the related current sampling circuit, test results show that the resolution of circuit can reach to 10mA, which satisfies the work well.

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Info:

Periodical:

Advanced Materials Research (Volumes 834-836)

Pages:

1642-1647

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.834-836.1642

Citation:

Cite this paper

Online since:

October 2013

Authors:

Shu Zhe Qi, Wei Han, Song Bin Zhou, Chang Li, Ke Jia Huang

Keywords:

Power Equipment Detecting, Protecting Standard Equipment, Random Large Current, Tested Equipment

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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