WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES ?
Answer Posted / nagaraju
when transmission voltage exceeds 30kv/cm breaking voltage
occurs due to this ionization will take place around the
conductor follwed by hissing noise ,color appearing ,light
glowing finally corona
| Is This Answer Correct ? | 11 Yes | 1 No |
Post New Answer View All Answers
HOW WORK HEAT PLATE EXCHANGER
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
what is the eight bit unit?
What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x
What is the permissible maximum flux density in transformer core?
During FEED, you will have all the information with regards to cable. How will you calculate the MTO for MV and LV Cables? what are your considerations?
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
what is transformor oil gread
difrent between vcb acb sf6 and mccb breakers
is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.
What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?
What is pi controller?
What are the advantage of free wheeling diode in a full wave rectifier?
Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega