What is mean by making & breaking capacity of circuit
breakers?
Answer Posted / naresh kumar dhal
making capacity=2.55*symmetrical breaking capacity
Always ckt breakers are rated in its symmetrical breaking
capacity.It is the rms value of fault current that a ckt
breaker can handle for short duration of time,which is
called short time rating.
If breaker is rated 10 mva,then its symmetrical breaking
capacity is 10mva.i.e root3*v*I*10-6=10mva,from this u
calculate current.Which is the symmetrical breaking current
| Is This Answer Correct ? | 9 Yes | 2 No |
Post New Answer View All Answers
what is reverse power relay brief explanation and in b/w where it is connected
please give me all the Alarm .Trip ,Safety Relays & Conditions of UPS Systems mail me on ashokbabunhce@gmail.com
dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.
Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?
What happens to voltage when current through the inductor is constant?
WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?
What type of a DC motor would you use for a lift?
What are the basic elements used for modeling mechanical translational system?
how to increase or decrease speed in DC shunt motor by DC convertor
What is the BS(British Standard)code for 11kv motor
Type of motor stater detail and working detail
why do we use 25kv supply for traction purpose?
Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.
Tell me about ur past electrical maintanence job
how to ctrl motor by use of ac or dc drive.plz explain evdintly