What should the transformer connection of a 11/220 kV step up
and 66/11 kV step down transformer ?

Answer Posted / sourabh maggo

Star - delta 7 delta - Star

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

if flux and load static in dc motor and supply voltage increases 20% then what happened in speed

1477


what is the purpose that we use PLC system in power system

4215


testing of Vector Group – YNaoD II

2462


what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?

1588


Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

1872






What is “pu” in ee?

650


what are carbondioxide and dcp used in fire extinguishers

1642


what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

1747


What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

1419


What are the types of power in electrical power?

729


why power not passes in plastic and rubber material

1544


What is the cut-off rate?

722


How can calculate the rating of a alternator for a given specific load with formula

1846


What is the significance of integral controller and derivative controller in a pid controller?

647


A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1342