Title :
Power system harmonic resonance-a documented case
Author_Institution :
Hipp Eng. Ltd., Vancouver, BC, Canada
Abstract :
A case of power system harmonic resonance that resulted in failure of 13.8 kV switchgear and consequent plant losses is documented. Calculations of the power system natural frequencies are given for various power system configurations of supply reactance, motor reactance, and system shunt capacitance. Sources of harmonic current are identified, methods of measuring harmonic current and voltage levels throughout the system are described, and results of the power system harmonic current and voltage survey are reported. Also described is the corrective action taken to prevent a recurrence of harmonic resonance
Keywords :
circuit resonance; electrical faults; harmonics; power systems; switchgear; 13.8 kV; failure; motor reactance; natural frequencies; power system harmonic resonance; shunt capacitance; supply reactance; switchgear; voltage levels; Capacitors; Circuit breakers; Computer aided software engineering; Frequency; Milling machines; Power system faults; Power system harmonics; Resonance; Thyristors; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
