what the effect will occur if we increase the airgap in
induction motor
Answers were Sorted based on User's Feedback
Answer / hemalatha
due to increase of air gap stator current gets increased in
turn which causes decrease of power factor..
Is This Answer Correct ? | 38 Yes | 2 No |
air gap high = leakage flux high = mutual flux low = X high = pf low = torque low
generally we put .5mm airgap in IM
Is This Answer Correct ? | 19 Yes | 2 No |
Answer / kapil bhatt
SINCE THE TORQUE DEVELOPED IN THE MOTOR DEPENDS ON THE AIR
GAP ALSO, INCREASING THE GAP WILL GIVE US A LESSER TORQUE
BECAUSE THE MAGNETIC FIELDS OF STATOR AND ROTOR WILL NOT
STRONGLY CLUTCH TOGETHER THEREBY GIVING US A LESSER SPEED.
Is This Answer Correct ? | 8 Yes | 4 No |
in 5 mva transformer 33/11 kv s/s what rating of capacitor bank is required & what is the fourmula for rating
Does Lightening arrest requires Earthing?..
what is sinwave ups
define transformer
what is the application of dynamic Breaking resistor in inverter ? & How it works ?
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.
0 Answers Engineers India Limited,
what is entropy?
Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me
Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
11 kv input, 66 kv input advantages
what is breaking capacity
what r the types of detectors? state the location these detectors?