Answer Posted / bhavesh chauhan
First of all let us know what is Tan Delta......?
Tan Delta Testing of a transformer or a CT or a PT determines integrity of insulation of the equipment which determines the remaining life of the equipment. Tan Delta is also called as loss angle or Dissipation Factor Testing.
In a perfect capacitor the curve of voltage vs current are phase shifted by 90..in case if any impurities are present the phase shift wont be 90 degree any more which means it will be less than 90. Thus by measuring new angle developed less than 90 we can calculate the loss angle or the level of insulation.
Measuring of Tan Delta is very simple..We have a Tan Delta Kit which has two terminals coming out of it. Applying the two terminals on top and bottom of the equipment and injecting the current through kit we can get the values of the test..
Tan delta Point is nothing but a point covered by a nut bolt on the bottom side of Bushing of transformer and CT..............
| Is This Answer Correct ? | 34 Yes | 14 No |
Post New Answer View All Answers
Why hydropower is called renewable source of energy?
Why the power factor improvement is so important in industrial loads
please send previous exams question papers
What is difference between Sample test and Routine test in safety standard?
some basic standard questions on transformer.
Why is voltage is required to be within permissible range for an electrical equipment?
66kv under ground cable how to layaing in ground any special case two ckt r runing
What is meant by stator?
how to decide no of electrodes for 1600A LT Main incomer panel
can anyone send me some sample question regarding power grid corp
Testing procedure of DG alternator stability test
why do we have spikes enough to burn electronic boards, when generators are not grounded
how give earthing conection to household equipment?
percetans
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA