A string of suspension insulators consists of three units. The capacitance between each link pin and earth is one-sixth of the self-capacitance of each unit. If the maximum voltage per unit is not to exceed 35 kV, determine the maximum voltage that the string can withstand. Also calculate the string efficiency. [84-7 kV; 80-67%]

150 kv single core cable has a radius of cable of 5cm. The insulation martial has two layers. The relative permittivity of the first and second layers are 6 and 3 respectively. If the minimum electric stress of the first and second layers are 30 kv/cm and 20 kv/cm respectively. Find the maximum electric stress of the first layer s are

A 2-wire d.c. ring distributor is 300 m long and is fed at 240 V at point A. At point B, 150 m from A, a load of 120 A is taken and at C, 100 m in the opposite direction, a load of 80 A is taken. If the resistance per 100 m of single conductor is 0.030. find: (i) current in each section of distributor (ii) voltage at points B and C.

How can the superposition of stress components be determined?

Solve it quickly please

2. The below figure shows the results of magnetic particles inspection experiment. What can you conclude from it? d) Discuss which hysteresis is better to be used with the AC generator in the airplane. e) In general, describe the structural, elasticity and electrical properties of copper and the PVC insulator (polymeric) with reference to their material properties. f) How metals and non-metals (ceramics and polymers) could be degraded?

q17) please need correct answer fast and short  also clear write please

Introduction of Geothermal Energy and Geothermal PowerPlant   Articles and Studies (3 PARAGRAPHS)

A certain laminated core has a permeability of 2,500. The length is 5.5 cm and the cross section is 2.1 sq. cm. What is its reluctance? Draw the diagram for the question

Explain B-H Curve graph and how it works?