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Home » Authors » Arthur Holland

Arthur Holland

Arthur Holland runs Holland Technical Skills, Oakville, Ontario, a consulting firm specializing in temperature and power control technology, training and technical writing. He can be reached at (905) 827-5606; fax (905) 827-5606; or e-mail aholland51@cogeco.ca.
Articles

ARTICLES

Protecting Electric Control Equipment

Arthur Holland
May 1, 2009
No Comments
Short circuits will destroy unprotected power semiconductors. Learn about protective devices that can help safeguard your system.
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Signal Conditioners Revisited, Part 2

Arthur Holland
October 1, 2008
No Comments
Some of the little boxes wired or attached to parts of your process could be signal conditioners. They all have inputs and outputs and commonly perform some functions not being done by the main control system.
Read More

What Does 'Fail Safe' Mean on Your Process?

Arthur Holland
September 1, 2008
No Comments
As noted so succinctly in Wikipedia, the online encyclopedia, fail-safe or fail-secure describes a device or feature which, in the event of a failure, fails in a way that will cause no harm (or at least a minimum of harm) to other devices or create a dangerous hazard to personnel. What does fail-safe mean for you?
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Signal Conditioners Revisited

Arthur Holland
June 5, 2008
No Comments
Some little boxes, wired or attached to parts of your process, could be signal conditioners. They all have inputs and outputs and commonly perform some functions not being done by the main control system.
Read More

Split-Range Controllers, Part 2

Arthur Holland
May 1, 2008
One Comment
In part 1 of this brief series (April 2008), I looked at the most common application for split-range controllers -- the heating and cooling of the barrel zones of plastics extruders. This month, I will continue the discussion and look at managing heat/cool processes using control valves.
Read More

Split-Range Controllers, Part 1

Arthur Holland
April 1, 2008
No Comments
The most common split-range application is the heating and cooling of the barrel zones of plastics extruders. On startup, the heat output of the controller takes the barrel zone up to working temperature. Heat delivery is usually modulated (that is, turned up or down) using the time-proportioning mode, by magnetic or solid-state contactors.
Read More

Preventing Hazards

Arthur Holland
September 6, 2007
No Comments
Transparency is vital at all levels of a heat-processing operation -- including cooperation of personnel during specification, design, documentation, construction and startup.
Read More

Hazards to People and Plant, Part 3

Arthur Holland
June 1, 2007
No Comments
In this brief series, I’ve described three industrial incidents that demonstrate the potential cascading effects that failing to consider the human factor and to ensure equipment reliability can have. What can we learn from incidents such as these?
Read More

Hazards to People and Plant, Part 2

Arthur Holland
May 2, 2007
No Comments
In Part 1 of this brief series, I described three industrial incidents demonstrating the potential cascading effects that failing to consider the human factor and ensure equipment reliability can have. What can we learn from incidents such as these?
Read More

Hazards to People and Plant, Part 1

Arthur Holland
April 4, 2007
No Comments
From the three incidents described here, culled from inquiry reports, it is clear that both the human factor and equipment reliability call for close examination in anticipation of the next disaster.
Read More
View All Articles by Arthur Holland
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