why do we use magnetic contactors ?circuit breakers are not
enough?
Answer Posted / sunthosh080
Usually the mechanical life of the contactors will in
millions times and they are very easy to control and
operate. Other breakers are large in size and difficult to
control when compared. Also the opening & closing time will
be very less for contactors and in case of any short
circuits contactors can be easily repaired.
Is This Answer Correct ? | 31 Yes | 5 No |
Post New Answer View All Answers
i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?
Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???
what is fault level of power system ?
The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason
1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve
I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
what is the setting of locked rotor in HT motor ? (answer expecting in percentage)
previous year paper of ntpc bhel for degree in electrical enng
why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?
Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)
what is die electric strnth of transformer ?
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?
what are inherent currents?
What is the armature mmf in a D.C machine?