FLICKER and ARC FURNACE POWER MONITORING

Power network flicker and harmonic disturbances caused by electric arc furnaces are of great concern to electric steel producers, equipment manufacturers and utilities. Disturbances lead to complaints about flickering lights and malfunction of sensitive electronic equipment including biomedical systems and computers. These problems are further aggravated by increased public demand for "clean" disturbance-free power and the steel industry operating trends toward longer and inherently less stable arcs.

Flicker suppression by power restriction results in higher steel production costs. Corrective equipment such as static var compensators or synchronous machines mean significant capital expenditures.

UHP INTERNATIONAL, INC. has been a pioneer and technological leader with over fifty years experience in measurement and evaluation of utility network disturbances and effective arc furnace power delivery. UHP Flicker monitoring dates back prior to 1939 with equipment accepted for industry standards. We have developed the UHP POWER ANALYZER III pioneering arc furnace power optimization. The UHP NETWORK FLICKER/HARMONIC ANALYZER has become the standard in flicker monitoring and evaluation. This system is now available as the continuous three phase digital UHP Flicker Harmonic Analyzer Model IID featuring both local and remote display and analysis. Over 70 UHP systems are in North American and worldwide operation. Field Services provide evaluation of network disturbances and arc furnace operating parameters.

UHP INTERNATIONAL, INC. provides flicker information, evaluations and projections for new or revamp furnace installations, static var compensators and other corrective systems. UHP has completed the first comprehensive revision of flicker sensitivity curves. We have also provided scoping studies related to arc furnace flicker and power utilization for EPRI and CMP and completed numerous major evaluations for steel producers and electric utilities for both AC and DC arc furnaces and other fluctuating load equipment. Utilizing this extensive data base of actual case studies, realistic flicker projections can be made - without the pitfalls of theoretical models and assumptions!

This page was created by the Propeller Heads at

Turnkey Solutions (dbabcock@mistks.com)

© 1990-1997 UHP International. All rights reserved.

Click here if you are trapped in somebody's Frames. These pages are designed and best viewed at 800x600 with frames using Netscape 3.0