Answer / raghavansa

Meggar

Answer / rajiv

Meggar is a brand name.

Answer / ramkumar

The resistance of high voltage insulators is normally in the order of Terra Ohms and cannot be measured by Megger or any other such instrument. What these instruments measure is only the surface resistance but what defines an insulator is its bulk or volume resistance. The ideal way is to put a guard electrode and ground the surface leakages and then measure the resistance using appropriate measuring set up.

Answer / pramila raj

The two instruments you will use most often to check continuity, or to measure the resistance of a circuit or circuit component, are the OHMMETER and the MEGGER (MEGOHMMETER).

Answer / saro

Ohmmeter

when u are given a timer,push buttons and contactor, how do i practically make a star delta control circuit and a direct online control circuit?

1 Answers  

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Alternating voltage and current is which type of quantities?

1 Answers  

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In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

0 Answers  

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What is the function of probe in cro?

0 Answers  

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why name plate detail HP/KW rating of a motor is different from measured value HP/KW using formula?

1 Answers   MAHINDRA,

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What is hysteresis loss?

1 Answers   PWD, SPML,

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WHY RATING OF VCB NOT LESS THAN 630A

0 Answers  

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line vltage of three phase distribution transformer is 433v and phase voltage is 250v,but we required 230v for domestic distribution,then how we reduce phase voltage of transformer

5 Answers  

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Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain

0 Answers  

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Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir

1 Answers   Vestas,

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why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  

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what is the right method of laying cable tray if we are using EOT crane in shed, better is below or up

1 Answers  

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