Abstract
Methods exist today to estimate the AC powerline impedance by taking into account the various components in the distribution system. These calculations are fraught with error due to inaccurate electrical documentation and a lack of information about the physical construction of the system. However, the accuracy of these results are critical because they feed into the calculation of available energy for establishing the degree of arc flash hazard present at a location. This paper presents a novel method for determining the AC powerline resistance and inductance through a process of measuring the real-time reaction of the line to the controlled application of two known impedances. This method has been realized and tested to accurately measure powerline impedances as high as 84 kA in 480 V motor control centers. The available energy can be calculated from this impedance to assist in the determination of the appropriate equipment necessary for arc flash protection.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.