If carbon brushes spring tension either loose or tight,
what happen on Motor performance During Full load Operation?

Answer Posted / ssnslm

there may be a possibility of sparking b/w slip ring and
brushes that will damage both.

Is This Answer Correct ?    13 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

2621


In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

2776


What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

1648


when will be the iocl interview results ifaced the interview on september 8 th

1635


what is the practical application of full adder circuit?

1414






Define rise time.

616


What are electric motors?

651


how can i find cable size from current rating?

1320


A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

4479


I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

1491


Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

1260


please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com

1702


what is upper impedance and lower impedance of a distance relay

1589


how to calculate the settings for shaft ct protn in hydro generators

1502


What is safety of Ht panel

1175