Capacitors have numerous applications in electrical and electronic applications.  This note examines the use of capacitors to store electrical energy....

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If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

Induction motors are frequently used in both industrial and domestic applications.  Within the induction motor, an electrical current in the rotor is induced...

HTML supports a variety of entity symbols which can be entered using either numbers or an entity name.  The number or name is preceded by the ‘&’ sign...

One of the fundamental requirements of an alternating current distribution systems it to have the ability to change the magnitude of voltages.  It is more...

When sizing cables, the heat generated  by losses within any sheath or armour need to be evaluated. When significant, it becomes a factor to be considered...

Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...

Electromechanical relays have been the traditional backbone of electrical protection systems.  While over recent years these have been replaced by microprocessor...

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