Why a starter is used for a motor?
Answer Posted / atul
starter are use to reduce the high starting current and provide protection against under voltage & overload condition
in dc motor 3-pt & 4-pt starter are use. the resestance are ude to limit high starting current & nvc are use to other protection.
in ac motor dol ,star-delta,& autotransformer are use.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.
Explain about 3 phase motor fault current calculation with examples?
Why to keep capacitor bank off while generator running.
After synchronization with grid what is the demand value QKVAR and how we will maintain that?
IN dc capacitive reactance is??
At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
How efficiency of thermal plant can be improved?
what is the current density of copper & alluminium.
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
trasnfarmaer core make
can we conduct the swineburne's test on a dc series motor? why?
What is a surge supressor why its is used in synchronous generators
Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above
How does an oscillator differ from an amplifier?