HVDC Transmission

April 10, 2020 Er.sushil Neupane 3

Introduction In the earlier stage dc system was employed for generation,transmission and distribution of the electric power.with the introduction of transformers and 3 phase ac […]

DC Motors

April 9, 2020 Er.sushil Neupane 0

Introduction An electric motor is a machine which converts electrical energy into mechanical energy.The fundamental principle of the dc motors are identical with dc generators.A […]

SF6 circuit Breaker

April 8, 2020 Er.sushil Neupane 0

SF6 Circuit Breaker(Sulphur Hexafluoride) Introduction SF6 is a colorless non-toxic gas, with good thermal conductivity and density approximately five times that of air (6.14 kg/m3.).It […]

Dc generators

April 6, 2020 Er.sushil Neupane 1

Dc Generator Dc generator (Direct current generator)is the electrical machine which converts the mechanical energy into direct current (DC).The mmf necessary to establish the flux […]

Power factor

April 4, 2020 Er.sushil Neupane 0

POWER FACTOR Definition of Power Factor In a system of alternating voltages and currents, power factor is defined as the ‘cosine’ of the phase angle […]


April 1, 2020 Er.sushil Neupane 0

Miniature Circuit Breakers(MCB)   circuit breaker are mechanical devices designed to close or open contact .It closes or opens electrical circuit under normal or abnormal […]