Skip to main content

TRANSMISSION LINE

Transmission lines are popularly known by many especially by those with minimal background with electrical power system as steel structures with conductors attached to it and fortunately, they are somewhat right. The image below shows an overhead line with conductors which are suspended from the steel structure and are insulated from it and from other conductors by insulators. Widely used insulators for transmission line are the polymer type   and the traditional porcelain type. With the case of insulators with porcelain, the number of which is determined by the voltage of the line. 

Typical Transmission Line
Transmission lines can be designed in many ways depending on the terrain and the electrical parameter requirements. In power flow analysis, transmission lines are usually categorized in to three approaches; short, medium, and long transmission line. Distinguishing one category from one another is determine through the circuit kilometer of the transmission. 
Transmission line analysis is important since it provides us an opportunity to understand the effects of the parameters of the line on bus voltage and power flow.

When we understand more the effects of power flow to these lines, by then we can also understand more the transmission line losses that goes with it. Transmission lines, Distribution lines and Secondary lines is usually the major contributor to the power losses of the entire system. To understand more about transmission line design and parameters, you can also visit transmission-line.net.

Comments

  1. Hi, Thanks for posting an important Transmission Article. I have seen your informational posting. You are highlighting very popular topic. I have enjoyed reading it.
    Thanks
    Nancy

    "Engine and Transmission World"

    ReplyDelete
  2. Thanks a lot for being my personal lecturer on this issue. I enjoyed your article greatly and most of all enjoyed reading the way you handled the aspect I considered to be controversial. You're always extremely kind towards readers really like me and let me in my lifestyle. Thank you.
    Engine and Transmission World

    ReplyDelete
  3. We appreciate you actually being simply accommodating as well as for picking out this form of fantastic useful guides most people are really wanting to be informed on. Our own honest regret for not expressing gratitude to you earlier.

    Engine and Transmission World

    ReplyDelete

Post a Comment

Popular posts from this blog

PARTS OF A POWER TRANSFORMER

What are the name of the basic parts of a Power Transformer? We can not deny the fact that only a handful of electrical engineering students are presently familiar with power transformers especially on what it looks like. Unlike a transformer we found in our homes, a power transformer’s appearance and construction is somewhat more complicated. It is not just a simple winding with a primary and secondary terminal although basically any transformer has one. The function that a power transformer plays in an electrical system is very important that an electric utility can not afford to loss it during its operation. Our discussion here will focus more on the basic parts and functions of a power transformer that are usually tangible whenever you go to a substation . Although not all power transformers are identical, nonetheless they all have the following listed parts in which the way of construction may differ.

ELECTRIC MOTOR FRAME SIZE STANDARD SPECIFICATIONS

ELECTRIC MOTOR FRAME SIZE STANDARD SPECIFICATIONS How is electric motor frame size being specified? Motor frame dimensions have been standardized with a uniform frame size numbering system. This system was developed by NEMA and specific frame sizes have been assigned to standard motor ratings based on enclosure, horsepower and speed. The current standardized frames for integral horsepower induction motors ranges from 143T to 445T. These standards cover most motors in the range of one through two hundred horsepower. Typical example of where you can locate the frame is shown in Fig 1.2.D – Frame No. The numbers used to designate frame sizes have specific meanings based on the physical size of the motor. Some digits are related to the motor shaft height and the remaining digit or digits relate to the length of the motor. The rerate, or frame size reduction programs were brought about by advancements in motor technology relating mainly to higher temperature ratings of insulating mate...

ELECTRIC MOTOR NAMEPLATE SPECIFICATIONS

How do we interpret an electric motor nameplate? Motor standards are established on a country by country basis.Fortunately though, the standards can be grouped into two major categories: NEMA and IEC (and its derivatives). In North America, the National Electric Manufacturers Association (NEMA) sets motor standards, including what should go on the nameplate (NEMA Standard MG 1-10.40 "Nameplate Marking for Medium Single-Phase and Polyphase Induction Motors").