Furnace Power/Control System decouples current, voltage control.October 20, 2011 -
Electric arc furnace power system and control scheme offers improved control over arc ignition and arc stability while also reducing flicker and oscillation. Solution utilizes saturable reactor, located in power circuit between main transformer and arc electrodes, that is controlled by variable DC signal, which varies impedance of reactor. DC source is controllable as independent variable in furnace control system, ensuring current and voltage control are effectively decoupled.
Original Press release
Warner Power
40-T Depot St.
Warner, NH, 03278
USA
Warner Power Announces New Arc Furnace Power System and Control Scheme
WARNER, New Hampshire - Warner Power has announced an enhanced electric arc furnace power system and control scheme*. This offers improved control over arc ignition and arc stability, as well as reducing flicker and oscillation.
Drawing on over 50 years' experience in specialized magnetics and power systems, Warner Power utilizes a saturable reactor, located in the power circuit between the main transformer and the arc electrodes. The saturable reactor is controlled by a variable DC signal, which varies the impedance of the reactor. The DC source is controllable as an independent variable in the furnace control system, so that current and voltage control are effectively decoupled.
Director of Advanced Technology Souheil Benzerrouk commented, "Decoupling voltage and current offers great control flexibility. This can offer substantially improved arc stability, while providing optimum ignition characteristics. In addition the reactor provides over-current protection, to prevent damage to the power supply or electrodes in the event of a short-circuit."
*patent filed
More about Warner Power LLC
Warner Power manufactures electrical transformers, power supplies and data entry terminals, boasting many years of experience and a reputation for quality and reliability at a competitive price.
Rooted firmly in the New England traditions of inventiveness, hard work and thrift, Warner Power products support the fast-growing alternative energy industries in China, Korea, Europe and the U.S. Over 40% of the company's production is exported. Other key markets include power supplies for industrial heating, elevator drive systems, and medical equipment.
In 2008 the Company was recognized as one of the fastest growing privately owned companies in New Hampshire by New Hampshire Business Review magazine. In 2010 Warner Power was recognized by New Hampshire Governor John Lynch in his State of the State Speech.
Warner Power is a portfolio company of American Capital, Ltd. (NASDAQ:ACAS), a Bethesda MD based publicly traded private equity firm and global asset manager. visit: http://www.warnerpower.com
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