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What is power theft?
Power theft is a problem which has been plaguing a power utility a problem which has been plaguing a power utility since it’s service and accounts for a significant amount…
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What is copper losses
Occur same as in distribution line and are lesser in quantity as compared to core losses. Copper losses are nothing but dissipated heat by the current in primary as well…
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What are copper losses by conductor
Copper losses can be minimized by the use of greater diameter of the conductor wire and winding material with better resistivity. Casually choosing the thickness, increases eddy currents. In this…
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Metal halide lamps
Light in metal halide lamps is generated by an electric arc through a gaseous combination of mercury vapours and mixtures of metal components metal halides. These additional metal halides in…
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Compare positive feedback and negative feedback
The parameter of comparison Positive feedback Negative feedback The overall phase shift 0 or 3600 1800 Feedback signal and the input signal. In phase. Out of phase. Input voltage. Increase…
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What is transposition
Transposition of conductors is meant that the exchanging of the position of the power conductor at regular intervals along the line so that each conductor occupies the position of every…
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Eight major equipment in the substation
Equipment used in substation Bus bar: bus bar is a very important component of the substation because it is the common conductor for incoming and outgaining lines. Hence any fault…
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Classification of amplifiers according
Voltage amplifier: it is the amplified where only the signal voltage is amplified i.e. input and outputs are in terms of voltage only. Current amplifier: it is an amplifier where…
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Methods of coupling
Resistance-capacitance (RC) coupling It is also known as capacitive coupling amplifier using this coupling are known as RC coupled amplifier the function RC coupling network is two-fold: To pass a…
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Necessity of coupling
Whenever large amplifier with very good impedance matching is required, a signal stage amplifier circuit will not able to amplify the signal to a large extent. Thus, a number of…