Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / suresh g
A relay is a device which senses the abnormal current
present in circuit and isolates the circuit from the fault
current by tripping the circuit breaker. Its contacts can
be used for providing interlocks there by making the system
more secure and safe
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
how much value of resistance should connect to 15 kw, 6 pole 3 phase slip ring induction motor having RV-240, RA-42.
what is the AC Plant and how can do the work with parts and picture tell us 150 Tr
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?
What are the types of feedback oscillators?
Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer
Why AC current leads voltage in capacitor and how?
can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value
What is the working principle of servo motor? And explain it.
Z transform is use when system is not a) converges b) diverges
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com
How isolater function when installed inelectrical 440V wiring
i have completed deee and i've (June2012-feb 2015 experience in electrical maintenance in pvt ltd company.company having HT & LT electrical power.how to apply electrical C-license ,NOW I was resigned my job,what are requirements of applying for c-license
What is the Surge suppresor? Why using in a UDB's and How it works?
Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?
