Answer / vinoth

For Synchronisation the following parameters needs to be matched,
*Phase voltage
*Frequency
*Speed(RPm)
In auto operated DG sets the GCP will take care of matching this parameters, In manual operated DG sets there is an option for matching the Phase voltage and frequency(i.e joystick to adjust voltage and frequency).Since the RPM is depends on the first two factors, the speed will be matched if the first two parameters are same.

In case of delta/delta transformer if the one phase is blown out then what will be secondary line voltage ?

4 Answers  

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If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

2 Answers   Focus,

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Sir, how to calculate the voltage drop and short circuit current of cable. please give me example and formulas.

1 Answers  

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As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

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How the train speed control?

1 Answers   Bhel,

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srij i need the relationship b/w KW AND KWH and with an electrical example. plz send if u can?

4 Answers  

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What is diversity factor in electric installations?

0 Answers  

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What are the protections for safe running of electric generator?

0 Answers   Hetero,

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how the harmonic pluses take place in the flow of current

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A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS?

5 Answers  

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X/R ratio in 11kv transmission line is?

1 Answers   RRB,

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what is the function of bearing in dc mchine" and where it is placed

0 Answers  

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