Answer / s.k.

For power TR's : 15,20,30,45,75 MVA , they have 21 taps
then the 2dry wdg. should meets the required kV
so , when the tap at the lower step( tap 1), it results the
lower kV at 2dry.

One amps in HT is equal to how manys amps in LT

5 Answers  

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how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

0 Answers  

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234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

0 Answers   Jomel,

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what is the illumination level required for child play area?

0 Answers  

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Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault

0 Answers   MPSEB,

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For 160kw motor what size of cable and material is needed.?

1 Answers  

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what is the difference between underreach and overreach.what is the advantage of using overreach instead of underreach.explain

1 Answers  

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what is the slip of synchronous motor

1 Answers  

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how to calculate the cable size depending on the amps?

1 Answers   Polycab,

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In Energy meter How many rotation Equal to one unit.

3 Answers  

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Explain cos(theta) and Sin(theta)

0 Answers  

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HOW DO A DISTANCE RELAY SENSES THE FAULTY ZONE.

5 Answers  

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