How the field flux is controlled in DC drive ?
Answers were Sorted based on User's Feedback
Answer / karthik_elec
in this method which is suitable for sepr excited and
shunt, compound motors,in this type speed can regulate by
inserting a variable resistence in the field circuit. speed
is inversily proposional to the field current, in order t
reduce the field current by using the resistor(rheostat)
we can reduce the speed,in this method we can achive minute
speed control, this speed control not affected by the load
means it can be perfoemed by light loads also, disadvantage
is we control the speed very limit range only 1:4
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / kvv.surendra
Its is by armature control for below rated and field control for above rated speeds
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / harini
if it is separetly field exited machine means will connect
the one rheostat in series with the field.
Is This Answer Correct ? | 0 Yes | 4 No |
How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15
Find the netid and hostid for the following classful IP addresses? i) 117.34.3.8 ii) 132.57.8.6 iii) 207.3.54.12
Why transformer rating in kVA not in kW?
How to find HT side and LT side(of a transformer),with the help of a voltmeter?
1 Answers Odisha Power Generation Corporation OPGC,
we all know that both the generator and motor are electromechanical conversion devices.....then why we rate motor in kw and generator in kva????
advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor
What is working principle of ACB and VCB?
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
What is mean by CT Saturate? how do we calculate?
why phase to phase voltage is 400v while phase to neutral is 220v?
At what condition differential relay will act in transformer and ht motor?
long form of CT
3 Answers MSETCL Maharashtra State Electricity Transmission Co Ltd,