why transformer is giving some humming noise .....?
Answer Posted / siddesh cs
It mainly happens when inductive loads are connected to transformer. inductive load which will produce harmonics so t/c produce noise.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
why starting current is high and resistance is almost 0 during the starting of motor dc motor...?
impliment (AB)`+C to transistor representation
why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?
What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker
help me with the question that might be ask on the interview for technical position
can we find the inductance of a induction motor?
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
How to test IR testing & magnetic balance test
which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?
redundant connection in contactor?
What the difference between ac and dc inductor an capacitor
Why are iron cores in transformers made laminated?
when we have to purchase the transformer by own i.e how much load will preferred HT connection?
how does commutator convert a.c to d.c?