Interested to Buy Any Domain ? << Click Here >> for more details...
why making capacity is more than breaking capacity?
- 14 Answers
- 35629 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 FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.
What are hrc fuses and where it is used?
how to calculate the fault in substation
Explain the propagation of harmonics in the network and influence of phase angle of harmonics.
Phase control and integral control are used for?
In radial network the source is fed from 1 end both ends at central
in what type of applications v can use q meter?
As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?
what is the purpose of using filters in a protective relaying scheme?
is it value of power factor is more than unit. whats effects in the source supply
What is the maximum percentage voltage drop (vd%)for a motor control center
Why field rheostat is kept in minimum position while armature rheostat at maximum position?
What happens if the series current double?
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
What is ideal IR values for ground and neutral.
