What is Harmonics & what are its efect & which harmonic is
dangerous
Answer Posted / abhidewas
Harmonics are the different frequency components.
the odd multiple harmonics like 3rd 5th 7th are most dangerous.
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
how to discharge 3 phase power factor correction capacitors
Which test will be more severe for VCB?
what is the formula of starting current of 3phase and 1 phase motor???
Why efficiency in thermal power plant is low?
i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice
why should the primary of transformer be connected in delta in a heat run test?
What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439
Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?
what is the acceptable limit value for Desolve Gas Analysis/
what reactive how to maintain
Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.
I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com
can anyone send me some sample question regarding power grid corp
What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
why we r not earthed Control cable of C.T. terminals