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# What is Jhol? (what is a Sag in hindi)

Hello friends, in this article we will know what is a sag? And what are the factors affecting the oscillation? And learn about many facts related to it.

## Sag

If a flexible wire of uniform field area is tied to two suspension points and allowed to hang naturally, it will hang in the form of a curve between those two points. The difference in levels of the support points and the lowest points of the wire is called sag or dip.

## Factor affecting the sag

The following are the factors that affect the agglomeration –

1. Weight W per unit length of the conductor
2. span of supports ((span) l
3. Tension in the conductor T
4. air velocity pressure on the conductor
5. driver temperature

If the swing d m, the distance between the snakes (span) l m, the weight W kg per meter per unit length of the conductor and the tension T in the conductor at point O as shown in the figure0 kilogram then,

sag d = Wl²/8T0 meter

load on the driver due to the weight of snow Force, is in the direction of the load of the conductor. Hence, the effective load of the conductor,

W = WC + Wi kg

When the wind moves, the wind velocity exerts pressure on the conductor in the horizontal direction. Which is proportional to the projected area of ​​the conductor.

Projected area of ​​the conductor = dl square meter

where d = diameter of the conductor
l = length of conductor

Pressure W on the conductor by air velocityw = (2/3) dl × W’w

W’ herew = Pressure per unit area

If snow of thickness t is falling on the driver then

Ww = 2 (d + 2t) l × W’w/3 kg

To find the swing in the conductor, the effective load of the driver

W² = (WC + Wi)² + W²w

If the direction of action of the effective load on the conductor makes an angle of with the vertical plane, then

= tan¹{Ww/(WC +Wi,

Vertical swing = d cos
Horizontal swing = d sinθ
So cosθ = (W)C +Wi)/W

and sinθ = Ww/W

What are the different types of DC motors and their characteristics? (different types of DC motors and What are the characteristics of DC motor?)

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