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.

what is neutral grounding resistor?

3 Answers  

---

what is the meaning of trippe time of circuit breaker

1 Answers  

---

is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.

0 Answers  

---

A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.

0 Answers  

---

what should be the motor rating for pumping water for house hold use from 60km far lake and what formula is to use please tell me

1 Answers  

---

---

what is inrush current in transformer?

17 Answers   Bhel, Essar, GMR,

---

can a 50 Hz transformer work satisfactorily if placed under 60 Hz,what are the prices and losses that will arise

5 Answers  

---

What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

5 Answers   ABB,

---

How to calculate loses in transformer of 160 KVA ?

0 Answers   IDV,

---

Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

0 Answers  

---

What is the difference between solid grounding and impedance grounding?

0 Answers  

---

how can findout cable fault Location only useing MEGGER

3 Answers  

---