what happen when dc shunt motor field is sudden open in
running condition

Answer Posted / nayan mondal

when the shunt field is open the flux becomes near zero, not
reaches the flux zero due to there have some residual
magnetism. so it will runs at very high speed(SPEED
INVERSELY PROPORTIONAL TO FLUX)

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?

1206


Define rise time.

609


700KW 6.6KV slip ring induction motor to use VFD to control the speed

2772


Why do we need interlocking in a HT metering or Ring main unit switchgear?

1560


Witch do depand of Power factor and theory of power factor?

1646






How can I known multiplying factor .without multiplying table

1349


why are installed water leakage detection system data centers & server rooms

1844


State and define norton’s theorem?

774


what is the principle of operation of CFL ??

2203


HOW DO YOU CAN CHECK A 15KV DIODE, WHETHER IT IS OK OR NOT?

1494


Can you explain about Restricited earth fault protection scheme

1402


How wire size can define in electrical wiring? What is the ratio?

1793


What is the selection process of breakers. Can any one please give a formulation on same?

1680


how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.

1621


2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping

1450