Answer Posted / paras315
in single phase induction motor stator has single phase
winding,when we give single phase supply, it creats a
pulsating magnetic flux in the air gap but for rotor
rotation there should be a rotating flux.so it is not self
starting.
for starting either auxiliary winding or any means which
splits the single phase flux in at least 2 phase flux can be
used
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?
what is effect of length of air gap on performance of dc motor and generator?
what is meant by rotating magnetic filed
How does PLC work for sychronising of Two or more DG sets?
what is submersible pump?what is different between motor and sub motor?
TYPE'S OF BREKAR ,WHAT IS TRANSFORMAR & SAFTY. STARTER DOL & STAR DELTA STARTER.
WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....
What are the conditions to be satisfied for parallel operation of dc generators?
State the methods of improving power factor?
This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.
if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)
the problem faced on star or delta winding connection??
what is the difference between linear choke and suction choke?