Answer / rajesh

I think to prevent collision of two sourse supply as for a.e power grid and DG generated supply.

Please guide if answer is wrong.
Thanks

Answer / k.prakashchandra

It is reverse power relay i.e . directional wower relay

why neutral of 6.6 kv star connected sq. cage induction motor does not get earthed, though for earth fault protection it is must.

7 Answers  

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how calculate the electrical load for industry and office

2 Answers  

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What is Neutral Transformer? what is the use of this?

4 Answers  

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How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9

0 Answers  

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What is the calculation for 1000Amps Air circuit breaker relay settings.

1 Answers  

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What are the types of Bus bar?

8 Answers   CTEVT,

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What is TVSS Protection???

2 Answers   Emerson,

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how kva rating of transformer is calculated.

6 Answers   Fluor Daniel, Siemens,

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What is LOTO?

6 Answers  

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what is ten delta ?

2 Answers   ABB, Areva,

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why transformer rating is in KVA?

4 Answers   ABB,

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How much is the starting current for HPMV lamps. How many lamps can u wire in a circuit

1 Answers   Technip,

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