Answer / koti

It is not minimum but maximum which is less than 1 ohm.

Answer / jithendra

static earthing is to be below 2 ohms.
plc & transformer neutral earthing is to be below 1 ohm.

lighting earthing will also come under static earthing

Answer / kanhaikumar

25 ohms

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

0 Answers  

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the transient state stability limit of a system wherin power is transmitted throgh a double transmission line is (a)equal to steady state stability limit (b)more than its steady state stability limit (c)less than than its steady state stability limit (d)equal to its dynamic stability limit

1 Answers  

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what is the burdon in case of relays?

1 Answers  

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what is under coal gassification?

0 Answers  

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HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 Answers  

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What is the breakdown voltage?

13 Answers  

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What does a permanent magnet generator do?

1 Answers  

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WHAT HAPPENS IF FUSE IS CONNECTED TO NEUTRAL WIRE

5 Answers  

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If one lamp connect between two phases it will glow or not?

9 Answers  

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what is doubling factor in making current of a breaker?

0 Answers   BARC,

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How to test Power Transfomer vector group?

1 Answers   Bhel,

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On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

3 Answers   Ambe Consultancy, Siemens,

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