Author name: Engr. Aneel Kumar

VOLTAGE CONTROL

WHAT IS VOLTAGE CONTROL? In a modern power system, electrical energy from the generating station is delivered to the ultimate consumers through a network of transmission and distribution. For satisfactory operation of motors, lamps and other loads, it is desirable that consumers are supplied with substantially constant voltage. Too wide variations of voltage may cause

VOLTAGE CONTROL Read More »

PROTECTIVE DEVICES AND THEIR FUNCTIONS

The devices in switching equipment are referred to by numbers, with appropriate suffix letters when necessary, according to the functions they perform. These numbers are based on a system adopted as standard for automatic switchgear by IEEE, and incorporated in American Standard C37.2-1970. This system is used in connection diagrams, in instruction books, and in specifications.

PROTECTIVE DEVICES AND THEIR FUNCTIONS Read More »

TRANSFORMER EXTERNAL FAULTS

External faults are those faults or hazards that occur outside the transformer. These hazards present stresses on the transformer that may be of concern and may shorten the transformer life. These faults include the following. • OVER LOADS Overloads cause the transformer to overheat and have the potential to cause permanent damage or loss of

TRANSFORMER EXTERNAL FAULTS Read More »