Answer / balakrishnan.t

to avoid any induced emf in the inner cable by lighting or through other means the outer shield or armouring is ussually earthed this is called earthed cable and cable without this is called unearthed cable.

Answer / kiran

Safty of the Equipment.which is the connected Earth Cable
power is not passed the Equipment.

what is formula in determining the size of Circuit Breaker for transformer with the following specifications. 7 units of 1600 volts (primary) and 400 volts (secondary). Both Primary and Secondary will have a circuit breaker which is SF6. What should be the Switchgear Main Breaker Size anf the sizes of each brances Circuit Breaker for Primary.

1 Answers   ABB,

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How to do maint. Of busbar.

1 Answers   KSEB, L&T, Siemens,

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Differentiate between ideal and non ideal current sources?

0 Answers  

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Why arc quenching is used in Diode ?

0 Answers  

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What is the dc grounding system and what is diff between AC/DC grounding system?

0 Answers  

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i am studying in final year can i allowed for 23rd UES of Indian army

0 Answers   TCS,

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why we use to transmit the power in three phases intead of single phase ?

4 Answers  

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Pls explain about vfd control?Where it is used, Give some example?

3 Answers   Siemens,

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According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?

0 Answers  

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What is transister define the transister ammiter ,base, colector.

0 Answers  

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What is diversity factor.

2 Answers   Cadbury,

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In the solution of load flow eqation, Newton raphson method is superior to the gauss siedal method because (a)the time taken to perform one iteration in the NR method is less when compared to GS method (b)the number of iterations required in the NR method is more compared to that in the GS method (c)the number of iterations required is dependant on the size of the system in the NR method (d)convergence characteristics of the NR mehod are not affected by the selection of the slack bus

1 Answers  

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