L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.37
Why we use d.c. meger in a.c. induction motor?1 86
75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?873
How to calculate multiplication factor in kva example 500kva ans pls ?
How to set the relay,,??
What is the difference between Delta & Wye windings?
Why is the starting current high in dc motor?
dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.
Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?
What is bridge rectifier and explain with details
can any one suggest paper presentation topies for electrical engg?
how do we calculate length of starting time and repeated starting of a direct online starter?
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.
What is the normal phase difference between the voltage and the no-load current in a transformer?
The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.
What is electrical diversity factor in electrical installations?
what happen ehen synchronisation is done at below rated speed
in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}