Wednesday, November 11, 2015

Well Grounded Knowledge for Industrial Control - Part Two of Three

Electrical drawing symbol for ground connection
Drawing Symbol for Electrical Ground Connection
The use of electric power to perform work, whether using large motors or sensitive instrumentation, involves benefits and hazards. In modern society, preventing exposure of equipment and appliance users to electric shock is universally accepted as a mandate imposed upon manufacturers, installers, and operators of electrical equipment. Proper electrical grounding serves as a key element in maintaining the level of safe operation we all want to have in our facilities.

One manufacturer of industrial process control I/O devices, Acromag, has expertly written three white papers in a series providing non-technical tutorials and explanations on the subject of electrical grounding and its integral role in safety and operational integrity.
Some topics covered include:
  • The safety function of a ground connection
  • Operation of a ground fault circuit interrupter (GFCI)
  • How electrical ground can stabilize voltage and limit transients
  • Recommendations for improvement of safety and signal integrity   
  • Importance of circuit grounding
  • AC power in the United States and its use of earth ground
Part One was published previously, and it is advisable to review the three parts in sequence. The third installment follows this post. This is recommended reading for all technical levels. Industrial process measurement and control stakeholders will all benefit, whether from newly acquired knowledge or refreshed understanding of the subject.

Product and application specialists are always eager to hear about your application issues and questions. Never hesitate to contact them. Your process knowledge, combined with the product and application familiarity of a professional sales engineer, will generate good outcomes.