WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off
10kv 20kv 30kv

Answers were Sorted based on User's Feedback



WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv..

Answer / bala123

Because the Form factor of AC system is 1.11,thats why the
voltage rating from the transformer was above format

Is This Answer Correct ?    83 Yes 10 No

WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv..

Answer / syam kumar

beacuse Tranformer output voltage is given by the equation

E = 4.44f(phi)N

so Voltages are multiples of 1.11

Is This Answer Correct ?    32 Yes 6 No

WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv..

Answer / vipul mali

because form factor is definded by

ff= r.m.s. value/average value

ff= 1/root 2/ 2f/ pi

ff= 1.11

so all the equipments are disigned with this value.

Is This Answer Correct ?    20 Yes 6 No

WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv..

Answer / eng_entropy

Because these values of voltage are the standard values
which produced by the generators.

Is This Answer Correct ?    5 Yes 47 No

Post New Answer

More Electrical Engineering Interview Questions

Why CT secondary should not left open??????????

2 Answers  


how commomn gate triggering is given for TRIAC ? other thyristor wont be efffected?

0 Answers   BARC,


how can we change the phase angle b/w two phase?

2 Answers  


what is the formula of starting current of 3phase and 1 phase motor???

0 Answers   L&T, WFP,


why we use tapechanger in primary side of transformer

5 Answers   Bhel, L&T,






Can neutral line also be use as a earthting for distribution transformer, or we need separate earthing pit forh the transformer?

1 Answers  


why m and c are shorted in wattmeter

1 Answers  


what is the speed of the darkness?

3 Answers   Wipro,


Can we use a Potential Transformer for Auxilliary Power supply( Spring charge Motor, Lighting etc)?

1 Answers  


how we can set the IDMT relay.

0 Answers   Suzlon,


HAI,I HAVE 6,60KW MOTOR FEEDERS IN MY MCC PANEL.HOW CAN I DO MY SETTINGS FOR OVERLOAD,SHORTCIRCUIT,GROUNGFAULT,INSTANTANEOUS TRIP FUNCTION IN MY 4000A CIRCUIT BREAKER?

1 Answers  


what happens when a dc shunt motor fed with an alternating suppy ?

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)