phase clearance between phase to phase and earth

Answer Posted / s pradhan

For 11 KV;Ph-Ph-130 mm
Ph-E -100 mm
For 6.6 KV:Ph-Ph-90 mm
Ph-E -70 mm
For 415 V :Ph-Ph-25 mm
Ph-E -20 mm

Is This Answer Correct ?    54 Yes 19 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line; i.e. the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The maximum value of n1(P) over all configurations P of 19 points in the plane is 18

1656


what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?

1534


how to find impedance , mutual indatnce in transmission lines

1667


1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

2042


Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

1508






why the protection turbo generators is most complex?

1511


When steam condenses and becomes water at the same temperature, the specific heat for the process in kJ/kg k is

661


why should the lowest unit of a testing transformer ( cascaded transformer ) have higher power rating??

1881


which VFD is better ( LT or HT)

1597


What is I to C?

1631


why we use copper earthing for neutral while for body GI.

5048


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?

1314


what is the minimum winding resistance of 30hp compressor, to run or to switch on

1402


what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1494


What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1254