11KW Delta motor is taking about 44Amps in star and goes
upto 70Amps in delta and trips OFF. The rated current is
26Amps. Application is for the blower. The motor takes ( no
load without coupling impller ) only 2.5A and 5Amps in star
& delta starter test.Need to know why its taking high
current.
Answer Posted / anil bhatia
check rated current as you mentioned 26 amps
according to chart it should be 19/20 amps
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
How to measure the earth resistance value in a concrete pavement(flood light area)?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..
Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.
what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?
how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.
what is meant by motor startup supervision & motor load jam protection ?
How many VSC based HVDC are there in India and the world
What is essential to prove safe isolation of electrical circuit?
How we calculate the size of ht cable for any transformer
I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?
Define end float in a motor?
WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE
Work done in a free expansion process is
can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.