I find that underground strip-armoiured,4core,LT PVC cables in an earthed power distribution sytem are occasionly found in charred condition-with no trace of it except ash. Is this because of no proper earth connection/continuity (giving rising to high armour resistance)in the joint enroute or because of insufficient capability (again due to high armour resistance)of cable-armour to carry fault current or due to neglected /unprotected overloading of the cable or due to high armour currents caused by power thefts where only phase(s) are unauthorisely tapped & at the point of poer consumption earth terminal is established by burring underground a not so good earthing rod (or using an underground water pipe for the purpose)

1 Answers  

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Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

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why electrical power has benn needed for speed controller of woodward governor control for biomas power plant

1 Answers  

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Motor also having losses, we call KW rating. In transformer and generator having losses but we call KVA Rating why?

9 Answers  

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why DG sets power factor is 0.8 lagging.

1 Answers   Cummins,

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What is water cooled chiller plant?

1 Answers   Gulf, IOCL,

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give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

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for selection of transformer we will considering 5 to 6 times of starting current of higher rating motor connected to secondary side. according to process wise we will start the motors gradually suppose if we will start 15 to 20 motors at a time wat will happen?

1 Answers  

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In an ideal transformer no load primary current I0 A lags behind V1 by 90 degree B is in the phase with V1 C leads V1 by 90 degree D lags V1 by 45 degree

1 Answers  

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what is the differance between HT motors And LT MOTORS.

0 Answers   Empire Vitrum Glass, Sappi,

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Can we use delta-star neutral grounded 3 phase power transformer bi-directionally.

2 Answers   GMR,

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What are the advantages and disadvantages of the dc motors?

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