From stability point of view,What(higher/lower) should be
the value of inertia constant of rotating machines?
Answer / iamdon
Rotating machines having HIGHER INERTIA CONSTANT have
higher transient stability limit as explained below.
Higher inertia consant will produce greater rotational
kinetic energy.So machine have greater pool of stored
kinetic energy which will help in PREVENTING EXCESSIVE
SPEED CHANGE due to sudden load variation.Such machines can
withstand large change in load.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 4 Yes | 1 No |
how we calculate fault current& load factor or fault level&also the leakage current
what is the voltage regulation for unity and zero power factor?
what is bus PT ?
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
for ac networks if the voltage wave form is V=Vm sinwt here the voltage Vm=230 for the frequency 50hz then the time period is 0.02 sec then for the time period 0.12 sec what is the voltage
What is Tan Delta Test
If one ct is reversely connected in Y system what will effect in kwh and kvarh meter?
depletion layer will form beforre biase or after bias ?
We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.
for 644KW load which MCCB should i use
I want to know the principle of rotating flux transformer.
5. What is PMG in Alternators?
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
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)