Cathode

1) The negative electrode, that emits electrons or gives off negative ions and toward which positive ions move or collect in a voltaic cell or other such device. 2) The negative pole of a battery.

Category 5 Cable

Also known as “Cat 5”, this cable is used for fast ethernet and telephone communications. The cable is constructed of 4 twisted pair of copper wire.

Capacity (Battery)

The quantity of electricity delivered by a battery under specific conditions, usually expressed in ampere-hours.

Capacitor Voltage Transformer

A voltage transformer that uses capacitors to obtain a voltage divider effect. It is utilized at EHV voltages instead of an electromagnetic VT for cost and size purposes.

Capacitor bank

An assembly of capacitors and switching equipment, controls, etc., required for a complete operating installation.