Answer / meenakshi

the main use of brush is to collect the current from
commutator

Answer / mitul vekaria

brush lubricate and polish the commutator
it also collect the current
alrge cross section area of burh helps to reduce
relctance

Answer / jagadeesh k

in motor the brush is used to get unidirectional torque
in generator the brush is used to get unidirectional current

Answer / prasanth ram

to reduce the sparks that is to be produced during
commutating conditions

Answer / karthick

in order to inject emf for slow down to rated speed

Answer / veeranna gowda

brush is in stator side

can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

0 Answers   NovaTech,

1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

0 Answers  

If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.

0 Answers  

Why delta star trformers are used for lighting loads?

0 Answers  

in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??

3 Answers   RRB, Siemens,

In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?

1 Answers  

if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

0 Answers  

why wound rotor is star-connected?

4 Answers  

How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 Answers  

What Is Connection APFC Panel In Compony.

0 Answers  

How efficiency of thermal plant can be improved?

0 Answers