Why DC excitation is used for alternators? Why cant it be AC?

Answer Posted / manoj kumar sahoo

DC which does not change its direction & magnitude .So dc
excitation work properly in alternator without change the
pole.And AC change its direction in 50 c/s. Therefore AC
excitation is not suitable for the alternators.

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

1726


Single line diagrams for star to delta and DOL starters.

1820


What is current & voltage ? Voltage perform at any load without current or not?

1381


how to find motors H.P. whout any rating? (only give you a motor and multimeter)

4828


defination of transistor controlled series capacitor

2205






HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

1448


What is industrial plc

1313


HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)

1516


Why does the adjacent zone of protection overlap?

700


how to decide choke rating for drive?

1887


what is a pilot wiring and whys that called a pilot wiers

1359


how many types of motor can be used in washing machine

1687


What is star-delta transformer?

695


impliment (AB)`+C to transistor representation

1349


What is the different types of cable & current capacity of cable

1448