Answer / hanupowergrid

*The wind span is that on which the wind is assumed to act transversely on the conductors and is taken as half the sum of the two spans, adjacent to the support.In order to take full advantage of towers located on elevated ground, it is usual to allow a wind span of 10 to 15 percent in excess of
the normal span. This additional strength can be used in taking a samll angle of deviation on an intermediate tower, where the actual wind span is less than the design wind span. The angle of deviation to be taken in such cases is approximately given by:

θ =( wl /π T )x x180

Where w = total ind load per unit run of span length of all conductor
carried by the tower,
l = difference between the wind span used for design and the actual
wind span, and
T = the total maximum working tension of all conductors carried by the
tower.


*The weight span is the horizontal distance between the lowest point of the conductors, on the two spans adjacent to the tower . The lowest point is defined as the point at which the tangent to the sag curve, or to the sag curve produced, is horizontal. The weight span is used in the design of cross-arms.

Why star delta starter is preferred with induction motor?

0 Answers  

---

why burdens of VTs is more than CTs?

0 Answers  

---

how we calculate size of exciter(excit. volt and current) for generator?

1 Answers   century,

---

how ct burden,magnetising current,ratio and knee point voltage are related & derived

0 Answers   Dalkia, SCT,

---

Why 3 phase induction motor getting supply in body if one of it's phase is cut

0 Answers  

---

i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 Answers  

---

what is the difference between a feeder and a cable?

3 Answers  

---

name the famous power plants present in A.P

1 Answers   Power Grid,

---

The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

0 Answers   PGVCL Paschim Gujarat Vij Company Limited,

---

What is the necessary condition for stability.

0 Answers  

---

What is ferrite affects and what is disadvantage of ferrite affects.

1 Answers  

---

What is ERD used in Elevators??

1 Answers   Emerson,

---