define digital electronic
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why only dc is given as excitation...why not ac???
In an electrical power supply,why if neutral phase of a 3phase supply fail over current occur but if it's single phase supply neutral phase fail low current occur?
in transformers for ex. 100mva and 400kv the secondary current is about 420 amps but for selection of bushing the capacity of selected bushing is 2000A why there is such big difference ?
in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.
What is the difference between multimeter
power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?
what kind of motors are used in the winders of coal field?and what are the various methods of it's speed control?
solar energy light efficiency & disadvantages?
what is power factor
why any centrifugal blower draw more current in starting. consider id fan and fd fan?
Can we test the alignment of End shield and stator of turbogenerator without rotor insertion? Also how to fix maintain the alignment at site installation?
how to reduce the power consumption in office ?