PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?
Answer Posted / harikumar
here contactors means power comtactor or control contactors
for contol the motor for eg:, in such cases the motor
control is for btoh direction of rotation, hence one
contactor for closkwise rotation and other for anto clock
wise rotation, and two pushbuttons for sepatare controll,
if by mistake someone press two pushbuttons and it can
damage the winnding and power failure due o mis match of
faces, thus the coil supply to one contactor coil is given
throiuh the interlocking of opther contactorso that if one
contator holds the other will not holds or gets on, thus
protction is made.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
How many double suspension hardware fittings are required on a double circuit transmission tower?
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
the typical output of a solar cell is........
How to calculate the value of earth capacitance in a transmission line.
Why are cables rated for 40 KA for 0.25 Sec fault current rating?
Electronic circuit
Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection
Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?
I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions
I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
what is a types of short circuit and what is a types of distance protection tests
How to decide the size of the capacitor for a single phase induction motor say 2 HP ??
how to select correct size of power cable for inverter duty motor
what are the main applications of transistor in non-linear region?
What is the diff. between single compression and double compression gland