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sriram1988
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Join Date: Sep 2011
Posts: 47
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Motor Control Centre

10/26/2011 5:06 AM

Myself an young graduate.i have only limited knowledge in MCC's.my question are

1)My company got some Chinese single line diagram ,in that diagram there is only one bus bar is shown .In that bus bar motor of 500Kw,300kw and three motor of 40 kw are connected to it.Now my boss is asking me to find how many mcc's are there ?See rough diagram..

http://www.flickr.com/photos/69164966@N08/6282858262/in/photostream

2) What are the factor that determines the number no of motors can be connected to a MCC.

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Pathfinder Tags: center MCC motor control
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TonyS
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#1

Re: Motor control centre

10/26/2011 5:52 AM

Links to a porn site

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sriram1988
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#2
In reply to #1

Re: Motor control centre

10/26/2011 5:58 AM

please see only the image loaded at center not images on side..
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sriram1988
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#3
In reply to #2

Re: Motor control centre

10/26/2011 6:04 AM

YOU CAN ALSO VIEW THE SAME IMAGE IN FLICKER

http://www.flickr.com/photos/69164966@N08/6282858262/in/photostream
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sriram1988
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#4
In reply to #2

Re: Motor control centre

10/26/2011 6:05 AM

SAME IMAGE CAN BE VIEW IN FLICKER

http://www.flickr.com/photos/69164966@N08/6282858262/in/photostream
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TonyS
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#6
In reply to #1

Re: Motor control centre

10/26/2011 3:25 PM

CR4 ADMIN: Modified Post

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So why has my post been made "off topic" by admins?

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kvsridhar
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#5

Re: Motor Control Centre

10/26/2011 9:13 AM

When a single motor is being controlled by a circuit breaker/ fuse-switch+contactor+relay this latter is called a "Combination motor starter" or more often "Starter".

When many such starters are put in a switchboard to control many motors, that switchboard is called a "Motor Control Centre". There is no theoretical limit as to how many starters you can put in one MCC, just a practical limitation.

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JRaef
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#7

Re: Motor Control Centre

10/26/2011 5:07 PM

That is a horribly inadequate drawing, but to answer your question, I see one MCC connecting all of those motors. If there were more MCCs, the "bus" would not be a continuopus line, and there would need to be some sort of feeder, and protection device for it, to each separate MCC.

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DennisMEP
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Join Date: Apr 2010
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#8

Re: Motor Control Centre

10/28/2011 10:47 AM

I have seen better napkin sketches then this. The number of starters in an MCC is limited by the amperage rating of the MCC and the total load on the MCC

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arifkunnath
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Join Date: Oct 2011
Posts: 95
#9
In reply to #8

Re: Motor Control Centre

10/29/2011 7:00 AM

The position of motors, like far they are and the services for which they are used will also effect the number of MCC's.
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Users who posted comments:

arifkunnath (1); DennisMEP (1); JRaef (1); kvsridhar (1); sriram1988 (3); TonyS (2)

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