Answer / jitesh

rating of contactor depends upon amp. carried out of
motor.& it is 1.7 times the motor current.

Answer / anil bhatia

Category Application
AC-1 Non inductive or slightly inductive load-eg:furnace
AC-2 Slipring induction motors:- high starting,
plugging

AC-3 Squirrel cage induction motors:- start and stop

AC-4 Squirrel cage induction motors:- start plugging,
inching
DC-1 Non inductive or slightly inductive load-eg:furnace

DC-2 Shunt motors:-starting, stop

DC-3 Shunt motors:-starting, plugging, inching

DC-4 Series motors:-starting, stop

DC-5 Series motors:-starting, plugging, inching

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what is meant by lagging & leading current

1 Answers   TATA,

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If induction motor load is incresed motor speed decrases.But in syncronous motor load incrases speed canstant why?

5 Answers  

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what is difference between ac1 and ac3 contactor and why it is needed to be selected?

1 Answers  

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What is the fullform of IPS in substaion using Aluminium Tubes

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what do you mean by star point.its importance in ct & pt

2 Answers  

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why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

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how to calculate the size of cable for 100 kva load,?can somebody tell me with a formula

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Classify driling machines.

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What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

0 Answers   Bhad Engineers,

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why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

0 Answers  

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