1)Explain why the cradle guard is used on railway crossing in overhead line construction?
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What is resonant peak?
Why neutral grounding Transformer provided for generator?
What is Difference Between static & Dynamic Pressure of Fan & Blowers
Differene between KVA and KW.
in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.
why current is denoted by I
1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?
What Happen When We provide Dc Supply to Ac Motor
if the length, number of turns and area of coil are doubled then inductance of the coil becomes.?
wat s reactive power.... how could it be compensated.....
how to improve IR value in HT motors?
what is the requirement of commutator in a universal motor?