What should the transformer connection of a 11/220 kV step up
and 66/11 kV step down transformer ?
Answer Posted / abc
delta-star &star- star
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
- two pumps must work with them at the same time but if the first pump start the second pump must delayed for some time to start also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it
hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz
what is meant by 2 within a star in a voltmeter dial?
WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT
critically criticize the application of ring main unit in power system
How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?
how to calculate transformer turn primary & secondary side 11kv to 420v
which network topology offers the greatest level of tolerance?
What is the polarization index value ? (Pi value)and simple definition of polarization index ?
What is polar plot?
What are the raitings of Mcb,mccb and Acb in detail ??
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
What will happen if i used 11KV earth ht kit to 11 KV / 11 KV cable termination?