Single-phase motors, adjustable-speed drives (ASDs), and power factor (PF) correction applications often depend on capacitors to operate properly. This article explains how to test these critical ...

Correctly installing capacitors at the terminals of your motors can lower reactive power requirements and increase system power factor. Induction motors are the primary source of rotary power in the ...

What happens to stored energy after a system shuts down? This design shows a way to discharge it only when needed.

In order for the solenoid point motor to throw the point we need to apply current briefly to an electromagnetic coil. A capacitor discharge unit greatly improves reliability in that it builds up and ...

Illinois Capacitor's QPC Series AC Motor Run Capacitors are quicker to install and offer more durability and reliability. Exclusive locking push-wire contacts speed installation, eliminate soldering ...

The diameters of the new series range from 25 to 40 mm at insertion heights of 58 to 120 mm. The new types are designed for rated voltages of 400 and 450 V AC and cover a capacitance range from 2 to ...

One of the most common parts to fail on a single-phase HVAC system is a run capacitor, so much so that we sometimes refer to junior techs as “capacitor changers.” While capacitors may be easy to ...

A popular style of fan motor used on older refrigeration equipment is the permanent split capacitor (PSC) motor. It is an electric motor made up of essentially two magnets: one is stationary (the ...