what is Use of Stones/Gravel in electrical Switch Yard??

4 Answers   Sanghi,

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How can one connect three source of electricity in a house..the source are 2 gen and one electricity.

2 Answers   SAUDI ARABIAN BAYTUR, Wantro Technical Services,

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what is the switching substation

2 Answers  

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What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?

0 Answers   Power Plant,

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If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

0 Answers   Usha Capacitors,

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explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

0 Answers  

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what is the UPS

4 Answers  

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Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

0 Answers  

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what are the advantages of Horizontal isolation breakers v/s vertical isolation breakers in medium voltage switchgear class.

1 Answers   NNN,

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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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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

0 Answers  

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electrical machines

3 Answers  

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