Transient overvoltage testing of environmental controllers

R. S. Gates, L. W. Turner, D. G. Overhults

Research output: Contribution to journalArticlepeer-review


The integrated electronic control system will provide a new method for the day-to-day management of environmental control of animal production systems. No standards are currently accepted for transient overvoltage protection of these controllers. To assess the adequacy of existing designs, a test circuit was designed and used for a transient open circuit over-voltage waveform (ANSI/IEEE C62.41-1980) of 16 environmental control units: a maximum spike of 770 V was applied to the power supplies, and a spike up to 100 V was applied to temperature sensor lines. For these relatively mild tests, no failures were noted due to power supply transients, but three units failed when subjected to transients on their temperature sensor lines. From this research it is suggested that an industry standard be adopted to define the minimum transient overvoltage design conditions by which environmental controllers should be tested.

Original languageEnglish (US)
Pages (from-to)727-733
Number of pages7
JournalTransactions of the American Society of Agricultural Engineers
Issue number2
StatePublished - Mar 1992
Externally publishedYes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)


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