Answer Posted / sayan
winding temperature measurement is carried out in an
indirect method in a power transformer. There is a CT which
replicates the current in the winding of any 1 of the
phases & heats up a heater using the secondary current of
the CT which in turn heats transformer oil in an enclosure.
This in turn causes delection in the winding temperature
indicator accordingly.
| Is This Answer Correct ? | 5 Yes | 3 No |
Post New Answer View All Answers
IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)
What is the difference between hot and cold loop testing?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?
which protection used in power plant?
In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
what is a power factor?
what is the reqirred voltage in HT motor to get full RPM on no load test?
Why earthing is necessary for any equipment?
why wire sizes are 3/29 or 7/29 and why not wire sizes are 2/29 or 6/29?
Q: How to calculate Transformer losses , tell us by Formula.
what type of earthing do for dry fissure rock?
Transformer how to maintaince a check b check c check d check