ACSR or AAAC Conductor Information Needed

Composite Conductor Corp and 3M are two manufacturers of conductors to handle the power you are describing, also very important is the conductor bundle configuration, spacers, and the altitude of operation.

Google these companies

AEP or American Electric Power out of Columbus, OH has a 735kV AC line and Hydro Quebec has a 735kV AC line and Manitoba Hydro has DC lines, Siemens and ABB are/have buildt DC convertor stations.

For the sake of discussion, I may point out some trde names of the conductors....Cairo, Greely, Rail, Drake etc. However the conductors can be used irrespective of the altitude or the bundling configuration. The only considerations are the current carrying capacity, the mechanical strength etc.

The "trade names" you speak of define a specific conductor size, strands, etc. Bird names are used to describe transmission conductors.

SouthWire is one company in the USA that makes transmission conductors.

The mechanical strength is the only thing concerning a mechanical designer, an electrical designer knows conductor size for current flow and applied voltage versus altitude and conductor size do matter.

Is this just general information you are looking for, or are you going to build this? If so, you better get an engineering frim that does this kind of work because there just isn't an off hand answer.

The information i m gathering is to know what type of conductors are being used in different countries; with identical brand names as i narrated in my previous discussion or with other brand names.Further what is the relation between mcm and inch^2. I am not a builder but the user and my question was in that perspective.

I will answer the question about circular mils and the actual cross sectional area of a wire in inches squared.

Circular mils are calculated by measuring the diameter of a wire in mils (1/1000 of an inch = 1 mil), and then squaring that diameter. Thus, the cross sectional area of a solid wire 1 inch = 1000 mils in diameter is 1000x1000 = 1,000,000 circular mils, which is also called 1,000 MCM (MCM = 1,000 circular mils.)

The actual cross sectional area of a solid wire 1 inch = 1000 mils in diameter is ∏DxD/4, or ∏x1000x1000/4 = 3.14159/4 x 1,000,000 = 785,398 mils squared, which is approximately 0.785398 inches squared, since 1,000,000 mils squared = 1 inch squared.

A wire 1 mil in diameter has a cross sectional area of 1x1 = 1 circular mil. The actual cross sectional area is ∏x1x1/4 = 0.7853981634 mils squared.

Circular mils are extremely easy to calculate, which is why they were traditionally used. They are not the actual cross sectional area of a wire, measured in mils squared or inches squared, because of the factor of ∏/4.

For a cable made up of N multiple strands, the area in circular mils of the cable is calculated as N times the area in circular mils of a single strand.

I recommend you look at previous discussions as this seems deja vu here, maybe in several discussions.

Here are a couple resources, the first is a distribution voltage course but I think they also have transmission voltage courses. the reference after is from another chat line about conductors. there are also courses in South Africa about transmission. Designing Electrical Overhead Distribution Lines (2 CEU) November 13-15, 2007 in Madison, Wisconsin
By attending this course you will be able to: * Identify and describe customer service policy issues, industry standards, and accepted practices related to overhead distribution lines * Determine conductor sag, tension, and mechanical forces on overhead structures * Describe performance and economic factors relevant to the specification of wood, steel, and concrete poles and structural components * Determine insulation levels and select insulators, lightning arresters, grounding, and other components coordinated to provide acceptable lightning performance
You will also : * Learn legal duties/potential liabilities and risk management methods * Understand electrical and mechanical characteristics, performance and economic factors relevant to selection and applications of overhead distribution conductors * Learn required conductor clearances and structural strengths of overhead lines
Reserve your space today! Typical 345/500/735 kV, 60 Hz overhead line parameters for various conductor diameters are tabulated in the following book: B. M. Weedy: "Electric Power Systems" Wiley, 1974 , p.75 From:
Dr. C. S. Indulkar, M. Sc (Tech) (Manch.), Ph. D (Manch.), Senior Member IEEE,
Formerly, Professor & Head, Electrical Engineering Department, IIT Delhi. Websites
A website on Electric Machines & Power Systems
A website on Control Systems

----- Original Message ----- From: Sumit Paudyal To: POWER-GLOBE@LISTSERV.NODAK.EDU Sent: Tuesday, April 24, 2007 12:29 AM Subject: Transmission Line Data

Hello Power Globers,

where can i get impedance of typical transmission lines used in 15,500,735kV systems?

Thanks,

Sumit Paudyal
Graduate Student
University of Saskatchewan
Canada

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Dear Power Globers, I'd like to know a paper, a website or a standard where I can find detailed information about the following subjects: 1- The permissible quantity and the position of compression or preformed joints in a span; 2- The minimum distance between two joints installed in a same conductor (to avoid "bird-caging"). Many thanks in advance. Best and Kind Regards, Paulo Americo Campo Grande - Mato Grosso do Sul Brazil Greetings, The attached picture (used for the cover of the "Corona Technology Course" manual) was taken by James R Booker PE, who used 35mm 1000 speed film and a synchronous shutter to image positive or negative corona. This was in the early 1980's after which night-vision cameras were used, in the early to mid 1990's low-light corona cameras became available, and about 2000 day-light corona cameras became available. Dan Ninedorf Ox Creek Energy Assoc Inc CoroCAM North American distributor www.specialcamera.com ----- Original Message ----- From: Jorge Fernando Gutiérrez Gómez To: POWER-GLOBE@LISTSERV.NODAK.EDU Sent: Sunday, March 25, 2007 10:13 AM Subject: Corona and transmission lines...

Dear Power Globers:
I would like to know if there is some web sites where I could find pictures showing corona discharges in transmission lines in order to show my students that kind of fenomena.
Thanks in advance,
Jorge Fernando Gutiérrez Gómez
Profesor Asistente - Ingeniería Eléctrica
Universidad Nacional de Colombia
Sede Manizales

Dear Sir(s)/ Madam(s),
For UHV substations having voltage levels of 500kV, 765kV, 1100kV AC.
Self is doing a comparative study on various parameters which are adopted
by different Power Utilities / different countries around the world. I
would appreciate if you could provide me following information based on the
values/practices adopted in your country.
Tolerable value of Radio Interference.
Tolerable value of Electrostatic field and electromagnetic field levels
(And at what height from ground level)
Tolerable value of TV Interference.
Tolerable value of Audible Noise Limit.
Types of Switching scheme adopted ( Double Breaker , One and Half
breaker or any other)
Equipment Bus Height, Main Bus Height and Jack Bus Height
Your valuable inputs will be highly appreciable.
Thanks in advance.
With my regards
Nihar Raj