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Anonymous Poster #1

Tie Lines

08/28/2017 11:28 AM

Hi,

What is 'tie' with reference to underground cables? How are reserve capacity and normal loading related to number of ties?

Best Regards,
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Rixter
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#1

Re: Tie Lines.

08/28/2017 11:38 AM

It's just a common term for cables connecting (tying) one telephone exchange to another.

tie line ˈtī ˌlīn/ noun

  1. a transmission line connecting parts of a system, especially a telephone line connecting two private branch exchanges.
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Anonymous Poster #1
#2
In reply to #1

Re: Tie Lines.

08/28/2017 11:41 AM

reference is made to electrical power distribution from underground cables.

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Rixter
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#3
In reply to #2

Re: Tie Lines.

08/28/2017 12:13 PM

Same idea except between power plants instead of telephone exchanges.

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James Stewart
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#4

Re: Tie Lines

08/28/2017 12:33 PM

Ties are defined in electric distribution as the infrastructure for importing electric power from a wide grid into a locality, typically in the form of an above ground substation.

In reference to underground electric distribution, the concept is widened to include all ties originating at a substation underground main distribution line (different voltage than domestic or even industrial voltage in virtually every case).

A tie is then a branch originating off the main branch line that originates at a distribution hub (a sub-station if you will).

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Anonymous Poster #1
#5
In reply to #4

Re: Tie Lines

08/28/2017 4:44 PM

why then for a single tine line, reserve capacity is 100% while normal loading is 50%?

Again, why for two number of tie lines - reserve capacity is 50% while normal loading is 66.7%?

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PWSlack
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#6
In reply to #5

Re: Tie Lines

08/29/2017 2:58 AM

Please describe an example.

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James Stewart
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#7
In reply to #5

Re: Tie Lines

08/29/2017 10:04 AM

1) you are anonymous

2) I have no idea where you got this information

3) WTF is a tine line?

sounds like something a tine line engineer would come up with...chuckles to self while walking slowly away, and whistling Dixie.

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Anonymous Poster #1
#8
In reply to #7

Re: Tie Lines

08/29/2017 10:13 AM

sorry, it is not a 'tine line'....it is 'tie line'.

Best Regards,
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James Stewart
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#9
In reply to #8

Re: Tie Lines

08/29/2017 10:18 AM

Why are you hiding in the bushes? No shorts?

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JohnDG
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#10
In reply to #5

Re: Tie Lines

08/29/2017 10:20 AM

Something that's 50% loaded is 50% unloaded. Since the unloaded quantity is equal to the unloaded quantity, that's a 100% reserve.

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