Answer Posted / sunil guru
THE MAGNETIC FIELD FLUX HAS TO COMPETE THE RELUCTANCE AND RELUCTANCE IS DIRECTLY PROPORTIONAL TO THE AIR GAP ....
SO LESSER THE AIR GAP LESS IS THE LOSSES....
AIR GAP SHOULD BE LESS THAN 5 mm IN DC MC. AND LESS THAN 3 mm IN AC MACHINE
IF THE AIR GAP IS MORE THEN TO ESTABLISH THE MMF THE MACHINE WILL TAKE MORE CURRENT AND HENCE MORE IS THE LOSSES ....
FOR ANY DISAGREEMENT MAIL ME AT parmar20072008@yahoo.com
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?
Which Class insulation is prefered for the sandwich Busducts ? Why?
what is the k var ratting of 1250kva
WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM
What are the conditions to be satisfied for parallel operation of dc generators?
According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.
why induction motors are rated at 0.8 power factor.
Define piezo-electric effect?
CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D
TELL ME WHAT IS INDUCTOR AND CAPACITOR WHAT IS IT BASIC OPERATION ANDFUNCTION?
What is the difference between isolators and electrical circuit breakers?
how to read idmt curva
my b-tech percentage is 50%. what answer will satisfy the hr ?
Initially, when the input is not equal to the output — what type of response is this?
In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is
