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Analysis of Voltage Drop and Thermal Characteristics for Poor Connections at Electrical Connector of Circuit Breaker of Small Size Pulverizer below 5.5kW
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 Title & Authors
Analysis of Voltage Drop and Thermal Characteristics for Poor Connections at Electrical Connector of Circuit Breaker of Small Size Pulverizer below 5.5kW
Kim, Sang Chul;
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 Abstract
This paper describes the characteristics of voltage drop and thermal for poor connection on electrical connector of circuit breaker in control box of small size pulverizer. In order monitor, we did the changes of RMS in voltage and temperature value with video and made normal state over and poor connections state below by screw gage. In case of voltage signal, the voltage drop was increased when the current was increased due to poor connections. In case of temperature signal, the temperature difference indicates ten times at 5A and fourteen times at 15A in the normal state. According to increase thermal energy, the insulation of electrical wiring and connector of circuit breaker can be carbonized. The results of this study will be useful to the development of preventive devices and system for electric fire by poor connection at small size pulverizer.
 Keywords
voltage drop;poor connection;small size pulverizer;RMS;electric fire;
 Language
Korean
 Cited by
 References
1.
National Fire Data System, "http://www.nfds.go.kr/", 2015.

2.
C. S. Choi, "Characteristic of Arc and Temperature of Electric Wiring at Poor Connection", The Safety Technology, pp.14-17, 2006.

3.
M. H. Park, "Safety Plan for Industrial Low-Speed Plastic Granulators", Graduate School, Chungbuk National University, pp. 1-2, 2004.

4.
J. W. Munday & Associates, "Electrical Fire Causes and Diagnostics", 2002.

5.
Fire Investigation Group, "Electricity Handout", London Fire Brigade, pp.35-47, 2003.

6.
NFPA 921, "Guide for Fire and Explosion Investigations", pp.70-91, 2011.

7.
J. D. Dehaan, "Kirk's Fire Investigation", Prentice Hall, pp. 327-329, 2002.

8.
Korean Industrial Standard, "KSC 2625: Terminal Blocks for Industrial and Similar Use", 2011.

9.
KESCO, "Hand Book for Electrical Safety Management", pp.103-109, 2006.

10.
D. H. Baek, "Study on Using Non-combustible Materials of Exposed Pipe", Korean Institute of Fire Science & Engineering, pp.16, 2013.