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Articles by Timothy Coyle, P.E.

Current Affairs: Power Quality - Part 3 Vfd/Motor Interaction

This month: Keep your vfd's safe during fast switching.
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Current Affairs: Motor Starter Basics — Part 3 (December 1999)

To avoid blame later, work to avoid faults now.
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Current Affairs: Power Quality Part 2 (September 2000)

This Month: The In’s and Out’s of Vfd’s. The second of two parts.
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Current Affairs: Power Quality, Part 1 (August 2000)

Tim Coyle addreses quality vs. quantity in the first of two parts.
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Current Affairs: Wiring Basics, Part 2 (June 2000)

Pick the right conductor for safety.
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Current Affairs: Know Your Code (July 2000)

What is (and isn’t) the National Electrical Code?
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Current Affairs: Know Your Electrical Enclosures (January 2000)

Different types work best for different jobs, writes columnist Tim Coyle.
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Current Affairs: Specifying Equipment Approvals (February 2000)

“What do you mean, ‘That control panel needs an NRTL label?’”
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Current Affairs: Protecting System Space (March 2000)

Good placement equals prevention.
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Current Affairs: Factoring In Motor Service Factor (April 2000)

Just what does motor service factor mean?
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