Loading [MathJax]/extensions/MathZoom.js
The effect of PWM frequency on the effectiveness of protection against electric shock using residual current devices | IEEE Conference Publication | IEEE Xplore

The effect of PWM frequency on the effectiveness of protection against electric shock using residual current devices


Abstract:

In the paper spectral analysis of the distorted earth fault currents in circuits with variable speed drives is performed. The impact of these distorted currents on the fi...Show More

Abstract:

In the paper spectral analysis of the distorted earth fault currents in circuits with variable speed drives is performed. The impact of these distorted currents on the fibrillation effect is evaluated. Effectiveness of protection against electric shock using residual current devices in circuits with variable speed drives for various PWM frequencies is discussed. Operational characteristic of the proposed residual current device is presented.
Date of Conference: 15-18 June 2010
Date Added to IEEE Xplore: 26 July 2010
ISBN Information:
Print ISSN: 2375-1428
Conference Location: Lagow, Poland
References is not available for this document.

I. Introduction

Electrical devices should not introduce risk of electric shock either in normal service or in the case of a single fault condition. In each part of an installation one or more protective measures shall be applied [1]:

Select All
1.
"IEC 60364 Low-voltage electrical installations (multipart standard)".
2.
G. Grünebast, "Allstromsensitive Fehlerstromschutzeinrichtungen. Teil 2: Vorschriftsmässiger Einsatz", Elektropraktiker, no. 2, pp. 144-149, 2008.
3.
T. M. Lee and T. W. Chan, "The effects of harmonics on the operational characteristics of residual current circuit breakers", Int. Conf. on Energy Management and Power Delivery Proceedings of EMPD '95, vol. 2, pp. 715-719, 21–13 Nov., 1995.
4.
J. Schoneck and Y. Nebon, "LV protection devices and variable speed drives", Cahier technique no. 204 Schneider Electric 2002.
5.
B. Siedelhofer and M. Muschong, "Fehlerstrom-Schutzeinrichtungen bei besonderen Anwendungen (2). Auswahl und Einsatz", Der Elektro- und Gebäudetechniker, no. 8, pp. 46-48, 2005.
6.
S. Czapp, "The effect of earth fault current harmonics on tripping of residual current devices", Przegląd Elektrotechniczny, no. 1, pp. 196-201, 2009.
7.
S. Czapp, "The impact of higher-order harmonics on tripping of residual current devices", Proceedings of the 13th Int. Power Electronics and Motion Control Conf. EPE-PEMC 2008, pp. 2082-2088, 1–3 September 2008.
8.
S. Czapp, "Działanie wyłączników różnicowoprądowych przy podwyższonej częstotliwości prądu różnicowego", Elektro.info, no. 10 (68), pp. 80-83, 2008.
9.
"EN 61140:2002 Protection against electric shock", Common aspects for installations and equipment.
10.
"TCad 7 - A simulation package for power electronic systems" in Copyright © Faculty of Electrical and Control Engineering, Gdansk University of Technology.
11.
Ł. Bełdycki, Analysis of the effectiveness of protection against electric shock in circuits with frequency converters, 2008.
12.
KIKUSUI: Multifunctional AC Power Supply PCR-LA Series and Quick Wave Sequencer SD04-PCR-L.
13.
S. Czapp, "Elimination of the negative effect of earth fault current higher frequency on tripping of residual current devices", Elektronika ir Elektrotechnika, no. 3 (91), pp. 85-88, 2009.
14.
IEC/TR 60755:2008 General requirements for residual current operated protective devices.
15.
IEC/TS 60479-1:2005 Effects of current on human beings and livestock.
16.
IEC/TS 60479-2:2007 Effects of current on human beings and livestock.
Contact IEEE to Subscribe

References

References is not available for this document.