Why we are testing a tan delta test in transformer? which
purpose conduting that test? and time priode test?
Answer / k.prakashchandra
This test is for life evaluation / extension programme.The
dissipation factor (tan delta) represents the gross defects
and overall dielectric loss in the insulation.The first test
may be conducted after 10 years and subsequent tests may
conducted every 5 years , and if results are poor, after a
short period to watch the further deterioration
Is This Answer Correct ? | 3 Yes | 3 No |
What is the advantage and disadvantage of dry type transformer?
why transformer rating in kva ?
I want to know in body earthing which material can be use either copper plate or GI plate please guide us which is best option.
if AVR fails in D.G set, what will be the effect?
Why is a plain induction motor unsuitable for wide speed control?
in a dc shunt motor what happens if motor takes high current,no speed
why we used.c source in the field of the alternator , why not a.c source.
what will be the effect on the voltage .if power frequency is increasing or decreasing.
which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing
What is the range of the stator resistance of 3 phase induction motor?
I have an enquiry of develop solar power plant, 0.69/11kV, 1500kV/750/750kVA, Dy11y11 Transformer. I want to know what does 1500kV/750/750kVA means? Sorry if this is a noob question.
when transformer in load condition neutral earth testing wheater we can do it or not