only three phases are coming in step down tranformers.how to get neutral?5 4537
New istallation how many eathing have one transformer? Names of earthing connect places?10 19643
a bulb of 100W and anather bulb of 200W , rated supply voltage 230v.when supply voltage is reduced to 100v,which bulb will give more light? and why with calculation?12 26412
if the diameter of a conductor is 'R' then what is the distance between two bundle conductor in a phase?
transformers parts & function of each parts
Oracle, NFL, Matrix, GVK, Juniper Networks, Amara Raja, Bhutan Ferro Alloys Limited, Mechanical, Siemens, RRB, Electrical Tech, TCS, Breather, Electrical, ERDA, Pyramid Plastics, RPPL, Tulip Silk Mills,24 367890
in single phase we get 220 volt and in three phase 4420 v why this second Ques= in case three phase star conection our neutrul becom disconect what happan 3 Q=== a three phase house load and have unbalce load on different pahse diffrent current eg phase a 7A b 8A c 5A and voltage is 440 than how calculate it total load in kw pl give formula thanks8 6665
WHAT IS SEMICONDUCTOR? EXPLAIN DETAIL. FOR EXAMPLE TAKE A PENCIL.THE LEAD IS MADE UP OF GRAPHITE IT IS A CONDUCTOR.THE OUTER COVER IS MADE UP OF WOOD IT IS INSULATOR.PENCIL IS A SEMICODUCTOR MATERIAL.5 10315
what is Aircraft earthing and what does it do?6 19453
Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?1 4175
what is meant by form factor and hoe related with the HT transmission voltage2 5371
How to make vector group test of transformer?2 4790
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
why effective resistance should be more than static resistance in transmission line?
what is difference between window type and wound type transformers?where we will use window type and wound type transformers?
In single phase capacitor motor, if the motor rotate reverse direction then how much power will be consumed by the motor and why?
I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.
how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.
Write a note on Treatment for electric shock.
What technology is used in latest generators?
Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....
what is the importance of earthing system on the generators big capacity and small?
How to size Air Circuit breaker (ACB)? What is the most important factors?
On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?
what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.
how the works electronic energy meter?
how to test the electrical panel.ht lt mcc pcc.