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"Solving drive installation problems - an engineer's view" Mark Empson, Electrical Engineer and director of Advanced Motor Control Ltd, (New Zealand), describes the underlying problems universal to drive users and offers suggestions for getting a VFD installation right. (Click to read the reprint from Electrolink Magazine.)
ZERO GROUND HFES® For Mining Applications Completes Final MSHA Requirements
ZERO GROUND® High Frequency Extraction System (HFES®) Provides Unequaled Safety Benefits in US Mining Applications (P-07-KA070024-MSHA)
Waukegan, IL - The U.S. Department of Labor, Mine and Safety Health Administration (MSHA) confirms ZERO GROUND has now completed all requirements to supply the ZERO GROUND High Frequency Extraction System (HFES) to the US Mining Industry. The HFES installation method has been accepted by MSHA as an integral part of the HFES system to address existing safety concerns and unplanned downtime.
View the full press release.
Check out our NEW Mining Applications page.
Just what IS the HFES system? Learn more by viewing: Introduction to HFES Powerpoint, and to understand how these graphs summarize the HFES story.
("ELECTRICAL NOISE" measured before ZERO
GROUND HFES®; note: before graph vertical divisions are 500
("ELECTRICAL NOISE" measured after ZERO
GROUND HFES®; note: "after" graph
vertical divisions are MAGNIFIED 10x to 50 mA)
• MSHA - U.S. Mining Safety & Health Administration*
• ABB - Asea
Brown Boveri, Ltd*
• TIC - Toshiba
• Flint Energy
• Albian Sands - Div. of Shell Oil
• Northrup Grumman
• General Dynamics
• US Coast Guard
• General Electric
• G-P - Georgia
• IEEE - Institute of Electrical & Electronics Engineers Standards Association
• TAPPI - Technical Association for Pulp & Paper Industry
• US Navy
Department of Agriculture
* Indicates 3RD
Party Tested and/or Endorsed
2005 – IEEE publishes the ZERO GROUND HFES System Solution “White
Paper” at the EIC Conference on Electrical Insulation, Indianapolis,
Indiana. To view, click on website link: ZERO GROUND