QUIZ3-EMD

What is the formula for D of the single phase core type transformer?

• D = diameter of circumscribing circle + Width of window

• D = diameter of circumscribing circle – Width of window

• D = diameter of circumscribing circle * Width of window

• D = diameter of circumscribing circle / Width of window

What is the formula for height of the single phase core type transformer?

• height = height of the window – height of the yoke

• height = height of the window + height of the yoke

• height = height of the window – (2*height of the yoke)

• height = height of the window + (2*height of the yoke)

What is the formula for width of the single phase core type transformer?

• width = Width of largest stamping / Diameter of the transformer

• width = Width of largest stamping + Diameter of the transformer

• width = Width of largest stamping – Diameter of the transformer

• width = Width of largest stamping * Diameter of the transformer

What is the formula for the width over 2 limbs?

• width = Width of largest stamping + Diameter of the transformer

• width = Diameter + outer diameter of hv windings

• width = Diameter – outer diameter of hv windings

• width = outer diameter of hv windings

The formula for single phase core type and three phase core type diameter and height are same.

• true

• false

What is the formula for the width over one limb?

• width over one limb = outer diameter of hv winding

• width over one limb = 2*Diameter – outer diameter of hv winding

• width over one limb = 2*Diameter + outer diameter of hv winding

• width over one limb = Diameter + outer diameter of hv winding

What is the formula for the width of the single phase shell type transformer?

• width = 2*Width of the window + width of the largest stamping

• width = Width of the window + 4*width of the largest stamping

• width = Width of the window + width of the largest stamping

• width = 2*Width of the window + 4*width of the largest stamping

What is the height of the single phase shell type transformer?

• height = height of window + width of the largest stamping

• height = 2*height of window + width of the largest stamping

• height = height of window + 2* width of the largest stamping

• height = height of window – width of the largest stamping

What is the formula to calculate the voltage per turn of the transformer?

• voltage per turn = space factor * square root of output power

• voltage per turn = space factor / square root of output power

• voltage per turn = space factor / square root of output power

• voltage per turn = space factor * 2*square root of output power

What is the formula for the net cross sectional area of the core of the transformer?

• cross sectional area = voltage per turn * 4.44 * frequency * magnetic field

• cross sectional area = voltage per turn / 4.44 * frequency * magnetic field

• cross sectional area = voltage per turn * 4.44 / frequency * magnetic field

• cross sectional area = voltage per turn * 4.44 * frequency / magnetic field