Posted inElectricity
Posted inTransmission and distribution
CORONA
 When an alternating potential difference is applied across two conductors whose spacing is large as…
Posted inTransmission and distribution
CONDUCTORS
Commonly used conductor materials: Â The most commonly used conductor materials for over head lines are…
Posted inTransmission and distribution
INDUCTIVE INTERFERENCE WITH NEIGHBOURING COMMUNICATION CIRCUITS
 It is usual practice to run telephone lines along the same route as the power…
Posted inTransmission and distribution
CAPACITANCE OF A SINGLE PHASE TWO-WIRE LINE
Consider a single phase overhead transmission line consisting of two parallel conductors A and B…
Posted inTransmission and distribution
CONCEPT OF SELF-GMD AND MUTUAL-GMD
 The use of self geometrical mean distance (abbreviated as self-GMD) and mutual geometrical mean distance…
Posted inTransmission and distribution
INDUCTANCE OF A SINGLE PHASE TWO-WIRE LINE
 A single phase line consists of two parallel conductors which form a rectangular loop of…
Posted inTransmission and distribution
PARAMETERS OF SINGLE AND THREE PHASE TRANSMISSION LINES WITH SINGLE AND DOUBLE CIRCUITS
 CONSTANTS OF A TRANSMISSION LINE  A transmission line has resistance, inductance and capacitance uniformly distributed…
Posted inTransmission and distribution
EHVAC and HVDC Transmission System
 Development of EHV transmission systems  EHVAC  The first 735 kV system was commissioned in Canada…
Posted inTransmission and distribution
A.C. DISTRIBUTION CALCULATIONS
In the beginning of electrical age, electricity was generated, transmitted and distributed as direct current.…
Posted inTransmission and distribution
CONNECTION SCHEMES OF DISTRIBUTION SYSTEM
 All distribution of electrical energy is done by constant voltage system. In practice, the following…