Interested to Buy Any Domain ? << Click Here >> for more details...
how we can select MCB ratings according to Voltages, Curves.
- 2 Answers
- 13569 Views
- I also Faced
- E-Mail Answers
Answer Posted / balakrishnan
1.We can select the MCB's acoording to Voltage is simple,if
we want 230V,select single pole MCb's else want 415V select
3 pole MCB's.
2.We can select the MCB's according to to Curves is also
simple,there are several types of curvature available..
there are,
B type: react quickly overload i.e 3-4.5 times of full load
current
Type C: react more slowly,these are recommended for
inductive with high inrush currents like fluorescent lamp.5-
10 times of Ifl
Type D: 10-20times of Ifl,recommended for very high inrush
current.
Type K: 8-12 times of full load I,recommended for cable
protection to be provided which include
motors,capacitors,and transformers
Type S: 13-17 times of Ifl,recommended for protection of
control Transformer,
Type Z:
| Is This Answer Correct ? | 31 Yes | 2 No |
Post New Answer View All Answers
what will happen when the dc supply is given to the capacitor?
how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer
Draw torque - speed curve and load curve of induction motor? mark operating point ?
why the rotor current becomes in steady state during high slip region? please verify with equations.
Difference between megger test equipment and contact resistance meter test instruments?
what is cathodic protection and why it use in industries?
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
how to find three phase complex power in per unit and MVA?
what ispositive, negative, zero sequence impedence?
what curve and rateing would you use for a three phase 0.75kw motor?
What is the safety of UPS?
if sf6 gas low in gis what will happen
What is cross over distortion? How it can be eliminated?
WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
