our company have 750 kva oil transformer.still we have
facing a problem that is when voltage is 11.5 kv coming
from HT side then LT-side voltage is 420v or above at tape
1.please give me best solution to decrease the voltage
Answer Posted / sudhakar lanka
my friend, you r looking for reduce the output voltage from 420 volts,
case1: try to keep the primary tap position on maximum voltage
for example ur receiving 11.5kv , if in your transformer there is a tap voltage which is more than these value i.e 11.6kv or else apply 11.5kv on that tap position.
same as above u can try on secondary side also
case2: if u have done all the these exercise, then when u connected to load on transformer there will be voltage drop
check at that time may be ur required voltage i.e rated voltage on motor or machine when it is running on load
other wise u can check with grid supply or substation to get required voltage
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
Why generation voltage in thermal power plant is between 11kv to 33kv?
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
what is the use of expulsition protective gap in 11Kv line.
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
What will happend if given Vfd out put to step up transformer
static chagre
how slip power recovery system work
What are the Full Forms of TVM, MTL, CVT ?
What is corkscrew rule?
how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021
why we use copper earthing for neutral while for body GI.
How can we checked Killo Watts of Motor & Alternator?
How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.
We have 90mX100m hangar with 16 no.of supporting pillar. It is required to provide power supply on all pillars. what is suggested earthing scheme for hangars.