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why do we need a 4th wire in 3phase 3wire transmission line
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In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.
why fractional pitch winding generally used in alternators?
How to calculate the sag on transmission Lines.
What is grid collapse? what is the reason for it?
What are the advantages of nichols chart?
How to maintain ac plant?
detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron
Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode
What is the safety of UPS?
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
Differentiate between real and apparent power?
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 the voltage regulation for unity and zero power factor?
How they LT panel busbar size choose
How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.
