Interested to Buy Any Domain ? << Click Here >> for more details...
why making capacity is more than breaking capacity?
- 14 Answers
- 35069 Views
- Essar, Indo Asian, Infinity, I also Faced
- E-Mail Answers
Answer Posted / zeeshanm
*When breaker is closed and a fault occurs then it closes
in transient state(in transient state DC offset become zero)
so the current capacity at this intant is only the rms
value of current(symmetical component)in transient state
which is also called breaking capacity of breaker.i.e
Breaking capacity=rms value of breaking current in
transient state.
* Now when breaker is going to be closed and mean time
fault occurs then it will close in sub transient state and
the current carrying capacity at this instant contains rms
value of current (~symmetical componentin transient state)
and the DC offset current in subtransient state which is
also called Making capacity of breaker.i.e
Making Capacity=DC offset current+rms value of breaking
current in transient state
Therefore: Making capacity > Breaking Capacity
| Is This Answer Correct ? | 14 Yes | 1 No |
Post New Answer View All Answers
what is the difference b/w ground & virtual ground?
What is the difference between single point and double point bonding. please kindly detail about bonding of cables.
how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????
how to calculate insulation level of transformer?
What are the two types of compensation?
how many joint can done in HT line and what is life of the joint
Differentiate between magnetic field and magnetic flux?
What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?
What is the formuala to calculate the rating of motor protection circuit breaker
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
Explain about retrofitting of machine tool.
Why arc quenching is used in Diode ?
how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?
Starting Time of LT & HT Motor
