How to calculate earth flat size for 250 Kva DG and
transformer?
Answer Posted / uma sanker dwivedi
THE RATED CURRENT OUTPUT WILLBE 434AMP AND THE EARTH
CONTINUITY CONDUCTOR SHOULD BE HALF OF THE LARGEST CURRENT
CARRYING CONDUCTOR.
IF THERE IS CU CONDUCTOR OF SIZE 400SQ. MM IS USED THEN
EARTH CONDUCTOR SHOULD BE 200 SQ. MM OF DIMENSION 40X6 CU
STRIP CAN WORK EFFECTIVELY.
| Is This Answer Correct ? | 14 Yes | 12 No |
Post New Answer View All Answers
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)
For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?
What is the two pole structure?
1 hp is equal to how much watt?
how to calculate the no load current in transformer?
hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com
What is the transfer function?
when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.
What is the Resposiblity of Electrical Utility Engineer
plz tell me,ht and lt panel terminals in substations explain beiefly
define digital electronic
What is systematic error?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?