What is a LBB protection and why it is used?
Answer Posted / monty
LBB called as a line breaker back up protection and it is used for the saftey of our equipment whenever fault occurs on line than the breaker of uper stream will be open if lower stream breaker will not operated.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
previous year paper of ntpc bhel for degree in electrical enng
explain the function of brush less dc motor?
What is the difference between a verilog task and a verilog function?
What is a fuse? How does it work? What are materials used?
what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer
Define phase lag and phase lead?
What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?
why do we not use equivalent voltage source in negative sequence equivalent ckt.
how to set the time in digital timer ?
Vaccum circuit breaker
what is the VA(Volt-amphere)? define with calculation?
how does the thyistor work in dc drive?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating
how to select fuse rating for a 3-phase motor ???
What is cable tray, its type, and its support?