What is Black-out and Brown-out situation in the context of
voltage stability in power system?
Answer / iamdon
Black-out:
Sequence of events following the voltage instability
leading to very low voltage or almost no voltage in a
significant part of the system.This is a natural phenomenon.
Brown-out:
Reduction made in voltage at load end to reduce power
demand so that the Black-out situation can be averted.This
is done artificially.With the reduction in voltage, power
flowing through transmission line reduces.This avoids the
cascade tripping of heavily loaded lines.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 4 Yes | 0 No |
Can you use a different size cable to complete a circuit if you run out what you are using?
all interview questions with answers of ntpc (2000-2009
Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan
what is deffrent alternatid and gernater
for measuring current and etc.,why we use value of 1.732 in three phase calculation. not in single phase.why
the rating of fuse wire i always expressed in what?
1)What are the proccedure of initial charge of 100AH lead Acid battery bank 2)whether discharge test is reqd ? if it is rqd why, how 3)what are the discharge critieria (volt/cell or sp.gravity/cell
what is self commutation how a thyristor discharges through a capacitor and inductor
What are various power system instabilities and what are their effects on power system operation?
explain harmonics in simple words..........
What is the difference between AC Drive and VFD?
Draw SLD for a panel has 500A Bus Bar rating, with 4 outgoing, each is 80 A (load current), showing the transformer and capacitor bank rating.
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)