Electric utility companies usually measure energy consumption in two quantities- the total cumulative energy consumed and the maximum power used for a given period. Thus, there are two charges in any given billing period especially for larger industrial customers: energy charges and demand charges. Residential customers are typically charged for the energy consumption only. The energy charge represents the costs [...]
Here is an experiment on ‘Power Factor’ especially written for school and college students. Aim of the Experiment: Power factors improvement of single-phase load using capacitor bank. Objective: To observe that by using capacitor bank with single phase load, power factor is improved. Theory: Power factor is the ratio between the kW and the KVA drawn by the actual load [...]
The following article will guide you about how overhead line is drawn, explained with the help of suitable diagrams. The route along which the overhead line is to be drawn should at first be surveyed and one peg is to be driven into the ground wherever a pole is to be erected. It is necessary to watch that the poles [...]
Fatal accident may happen if an overhead line snaps and, while falling on the ground, comes in contact with a man or an animal. In order to assure safety against chances of such accidents, safety devices are used in medium and low voltage overhead lines. A safety device is usually made of galvanised iron wire. One end of this wire [...]