Answer Posted / raghavendran
Tan Delta test is performed on transformers to test the
insulation strength of its Bushings,Oil,Winding - winding
insulation Strength.It is also called as dielectric
Dissipation factor.it is measured by applying Voltage across
the Insulation and the intensity of the charging current say
(Ic) and resistive current (Ir).the value of Ir should be
low and thus denoting that the insulation is good.
| Is This Answer Correct ? | 36 Yes | 4 No |
Post New Answer View All Answers
What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?
What are books to be referred for KPTCL exam?
Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics
If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses
Convert a star connected network into a delta connected network.
how to changeover ups in this power failur time?
If there is major % of Voltage harmonics in the system, how can it be control or reduced?
WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.
How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors
Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?
What is meant by time harmonics and space harmonics?
What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.
State any two nuclear power stations in India, with their generating capacity.
What does the term supermesh means?
How can we checked Killo Watts of Motor & Alternator?