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Flux Linkage

Flux Linkage: The inductance of a circuit is defined as the flux linkage per unit current. Therefore, in order to find the inductance of a circuit, the determination of flux…

Skin Effect in Transmission Lines

Skin Effect in Transmission Lines: Skin Effect in Transmission Lines - When a conductor is carrying steady direct current (d.c.), this current is uniformly distributed over the whole X-section of…

Requirements of Satisfactory Electric Supply Connection

Requirements of Satisfactory Electric Supply Connection: The Electric Supply Connection in India is 3-phase a.c. operating at a frequency of 50 Hz. The power station delivers power to consumers through…

Introduction to Microprocessors and Control of Electric Drives

Introduction to Microprocessors and Control of Electric Drives: Introduction to Microprocessors and Control of Electric Drives - Conventionally, control of thyristor converter fed electrical drives (both dc and ac) is…

Electric Motor Power Loss and Heating

Electric Motor Power Loss and Heating: An Electric Motor Power Loss and Heating occurring in its various parts such as copper losses occurring in armature and field and eddy currents…

Reversible Drive using Field Reversal

Reversible Drive using Field Reversal: A Reversible Drive using Field Reversal can be realised as shown in Figs. 4.83 and 4.84. In Fig. 4.83, the armature is fed from a…

Torque Equation of DC Motor

Torque Equation of DC Motor: When dc voltage is applied to the armature of a dc motor with its field excited by dc, a torque is developed and the armature…

Current Source Inverter Fed Synchronous Motor Drive

Current Source Inverter Fed Synchronous Motor Drive: A synchronous motor draws a stator current which is independent of stator frequency when V/f and E/f are maintained constant and armature resistance…