Submitted on: 30 July 2019.
Revised on: 25 September 2019.
Accepted on: 18 October 2019.
___________________ELECTRIC POWER COMPONENTS AND SYSTEMS
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Submitted on: 13 January 1999.
Revised on: 10 April 1999.
Accepted on: 09 May 1999.
___________________ELECTRIC POWER COMPONENTS AND SYSTEMS
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