• Home
  • Sitemap
  • Contact us
Fire Sci. Eng Search

CLOSE


Int J Fire Sci Eng > Volume 29(6); 2015 > Article
Fire Science and Engineering 2015;29(6):91-97.
DOI: https://doi.org/10.7731/KIFSE.2015.29.6.091    Published online December 31, 2015.
고조파발생에 따른 영향과 대책 연구
백동현
가천대학교 설비소방공학과
Effect of Harmonic Generation and Countermeasures
Baek Dong-Hyun
Dept. of Fire Protection Engineering, Gachon Univ.
요약
초고층건축물이나 대형 사업장과 IT를 추구하는 수용가는 많은 가전기기 사용하여 선형, 비선형부하시의 고조파로인한 Capacitor의 과열 및 소손, 자료 손상, 대지전위 상승, 통신유도장해등을 일으켜 전력설비의 오동작과 과열로 화재의 원인이 될 수 있다. 이를 확인하기 위해 건축물의 7곳을 조사하여 비교한 결과 6곳에서는 적정하였으나 1곳은 고조파관리가 필요하였다. 전류 고조파는 No. 3, 6, 7은 매우 초과하여 정밀 진단이 필요하였으며 No. 2, 3, 5는 5고조파 전류를 고려하여야 한다. R상 전압고조파는 양호하였으나 전류고조파는 No. 1을 제외하고 No. 2, 3, 4, 5, 6, 7은 모두 기준을 초과하였다. 따라서 지그재그변압기나 엑티브필터를 설치하여 고조파 상승을 억제시킬 필요가 있고 설비불평형률, 역률등을 종합 조사하여 효율도 향상시킬 필요가 있다.
Abstract
Skyscrapers, large business buildings, and IT consumers use many appliances, and the electrical power stems can cause fires by overheating. This can result in damaged capacitors, lost data, rising ground potential, and communication obstacles from linear or nonlinear high frequency. To make sure of that we investigated 7 spots of a building, among which 6-spots were fair but the other one needed high frequency control. Spots 3, 6, and 7 needed diagnostic workup, and spots 2, 3, and 5 considered 5 high frequency currents. A phase is all of good but the high frequency current is greater than the standard level except for spot 1. As a result, a zigzag transformer or active filter needs to be installed, and the efficiency needs to be upgraded by investigating load unbalance factors and power factors.
Key Words: Harmonics, Harmonics standard, Harmonics of fluence and measure, Capacitor


ABOUT
BROWSE ARTICLES
EDITORIAL POLICY
AUTHOR INFORMATION
Editorial Office
Room 906, The Korea Science Technology Center The first building, 22, Teheran-ro 7 Gil, Gangnam-gu, Seoul, Republic of Korea
Tel: +82-2-555-2450/+82-2-555-2452    Fax: +82-2-3453-5855    E-mail: kifse@hanmail.net                

Copyright © 2024 by Korean Institute of Fire Science and Engineering.

Developed in M2PI

Close layer
prev next