Answer / suhas

after generating voltage, it has to be transmitted....to
transmit we use delta connection as it needs only 3 wires
which saves money...steppin up of voltage is done to
decrease losses in transmission...so step up transformer
has Y-del connection...in the receiving end(step down) we
can use del-del or del-Y...by using del-Y connection we hv
d flexibility of selecting the 3 phase and 1 phase
voltage... this method is done usually for
distribution...for further transmisssion, in swithing sub
stations, the step down trafo will be del-del....with
tertiary as star.....

what is the differn bitween RCCB &MCB

3 Answers  

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Define resonant frequency?

0 Answers  

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we are operationing 3NOs 800 Kva generators by singronyus.specialey evening time our panel trip. the panel showing generator earth fault

4 Answers   RRB,

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What consists of 2 or more thermocouples to be connented series?

0 Answers  

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why does the time taken for fuse to melt is longer as the wire length increases?

1 Answers  

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what is the use of piston rings in the engine used for a generator...........

0 Answers  

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What is the difference between PLC & DCS?

1 Answers   Power Plant,

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why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??

5 Answers  

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If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additional information do I need from the main supply power line?

1 Answers   MahaDiscom,

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please give me solution to rectify the emi(electromagnetic interference)

0 Answers   Powergear,

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why the generator operating along with the infinte bus bar should never be under_excited?

1 Answers  

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In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

0 Answers   HAL,

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