Variable Speed Drive (VSD) Enclosure Types and Component Protection
Last week we discussed some of the potential impacts of temperature and humidity on the operation and longevity of variable speed drives (VSD) and other motor control equipment. Providing the proper enclosure for the equipment is critical in ensuring you get the most from your investment. Let’s examine the various environmental conditions under which these electronic components might be installed and some methods for protecting against their deleterious effects.
At Joliet Technologies, we are frequently requested to assemble control cabinets for installation in diverse industrial and/or outdoor locations. We have also built panel assemblies for the off-shore oil industry, where the marine environment places extreme demands on the equipment. In designing these assemblies, we pay particular attention to the following:
Ambient temperature: as noted last week, drives and other control components are designed for operation within a temperature range. Typically, it is the upper end of that range, most often 40°C, that is of concern. Operating in an environment above that range places greater stresses on switching devices, potentially decreasing their operating life. If the ambient temperature surrounding the enclosure is sufficiently cooler than the drive enclosure, then either passive conduction or […]