what is meant by transformer differential protection ?

3 Answers   BFL,

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single phase 230v three phase voltage 415volt why we aren't used line voltage 690v?

7 Answers   Citec,

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Why a tesa lamp is glow between two phase?

0 Answers  

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what is back trip and re-trip in protection schemes? why these two? define me the exact function of these two?

1 Answers   Siemens,

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WhY PF low at Time of PT Missing in HT Meter

2 Answers   HCL,

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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which circuit takes max. load & which circuit takes min. load i.e. SERIES CIRCUIT OR PARALLEL CIRCUIT??

3 Answers  

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what is the differents and advantages of Electro magnetics relay and static relay ? what is the numerical relay ? advatages?......

7 Answers   CAT, L&T, TCS,

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Can u start a tube light without a starter?

8 Answers   Adani,

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When MICC cables used ?

0 Answers   Clinga,

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Which type of motor is used in trains, what is the rating of supply used explain working principal?

0 Answers  

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What are the voltage values for LT,HT,EHT and other voltages??

22 Answers   INEL, MNC,

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