Why fuse is? What will prevent by fuse?

Answers were Sorted based on User's Feedback



Why fuse is? What will prevent by fuse?..

Answer / iamdon

A fuse is an electrical conductor whose melting point is
low.It is always connected in series with the apparatus
whom we wish to protect under the condition of short
circuit or such faults which causes a heavy current flowing
through the appratus that can damage the appartus.Under the
heavy current flow, the fuse element burn itself and
disconnect the appratus from line and protect it from
burning.

Is This Answer Correct ?    8 Yes 0 No

Why fuse is? What will prevent by fuse?..

Answer / desingurajan ramco cements...

Fuse not having low melting point..... it is always having small thickness when compare to wherever it is connecting in the conductor.... CURRENT MEANS FLOW OF ELECTRONS...... when any faults occurs (like, short circuit..etc) more electrons flow through the fuse compare to normal running condition. that time more electrons not able to flow through the small area(ie fuse). at the time fuse will be over heated. and it will melt. and proper fuse wire having aprox 800C. melting speed is based upon the fault level......

Is This Answer Correct ?    2 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

i am using star-delta connections with reverse/forward direction motion of the 75hp induction motor.What should be the ratings of Main,Delta and Star contactors and why?

1 Answers  


How to select power cable for machine

4 Answers  


hello, I need to know exactly what happen in the motor while it is connected to the (star/delta) starter, mechanical and electrical. Thaks for answering

3 Answers  


Why do we twist copper to make cable?

3 Answers   Bhel, Integrated, MR Cables,


what is impedence (Z) of transformer, what indicate in transformer , which perameter indicate in transformer

5 Answers   CTS, Suzlon,






what are the industrail measures to overcome ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system? plz reply

3 Answers  


Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

0 Answers  


time constant of RC series circuit?

2 Answers   DVC,


How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  


I have raw material for making Compact-Choke for flourscent lamp of 40 Watts. We are suppose to get 0.4 amps output at end. but we are getting 0.42 or 0.44 amps and above. We have done many testings in different but nothing worked out. Please suggest me how to get the correct output. We are using 1. core winding of 700 windings of aluminium 2. E-shape iron fillings and I-shape iron fillings to surround the winding.

6 Answers  


When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

1 Answers   Shasun Chemicals,


what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)