More than ever, commercial building owners and industrial process users need to reduce their maintenance costs and achieve energy savings.
You have probably noticed that three-phase motors can have a varying number of leads exiting the junction box. The most common numbers are three, six, nine or twelve.
According to the Department of Energy, motor-driven equipment—such as pumps, fans and compressors—consume about 16 percent of the energy used in U.S.
A series of studies by the Institute of Electrical and Electronics Engineers, Inc.
Pumps & Systems, April 2013
Pumps & Systems, March 2013
Last year, a Pumps & Systems reader asked about matching variable frequency drives (VFDs) and motors.
With highly reliable electrical systems, protective relays may be called upon to operate very infrequently.