# \#line **URL:** https://forumautomation.com/tag/line/88.md [Latest](https://forumautomation.com/latest.md) · [Categories](https://forumautomation.com/categories.md) · [Tags](https://forumautomation.com/tags.md) --- ## [BUS BAR IN A POWER SYSTEM AND ITS APPLICATIONS](https://forumautomation.com/t/bus-bar-in-a-power-system-and-its-applications/6049)
**Author:** [@ashlin](https://forumautomation.com/u/ashlin)\ **Replies:** 0\ **Last updated:** [March 9, 2019, 5:56pm UTC](https://forumautomation.com/t/bus-bar-in-a-power-system-and-its-applications/6049 "2019-03-09T17:56:08Z")
ELECTRICAL BUS BAR An electrical bus bar is a conductor or a group of a conductor which is used for collecting electric power from the incoming feeders and distributes it to the outgoing ones it is a … --- ## [Why Correct Busbar Sizing Important in Electrical Panels?](https://forumautomation.com/t/why-correct-busbar-sizing-important-in-electrical-panels/14296)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [August 3, 2026, 7:46am UTC](https://forumautomation.com/t/why-correct-busbar-sizing-important-in-electrical-panels/14296 "2026-08-03T07:46:33Z")
A busbar is the backbone of every electrical panel, distributing power safely and efficiently throughout the system. Selecting the correct busbar size is essential to ensure reliable operation, minimize energy losses, an… --- ## [What is the Corona Effect in Transmission Lines?](https://forumautomation.com/t/what-is-the-corona-effect-in-transmission-lines/10485)
**Author:** [@Ajmal\_ismail](https://forumautomation.com/u/Ajmal_ismail)\ **Replies:** 0\ **Last updated:** [June 17, 2022, 5:46am UTC](https://forumautomation.com/t/what-is-the-corona-effect-in-transmission-lines/10485 "2022-06-17T05:46:09Z")
What is Corona Discharge? Corona Discharge (also known as the Corona Effect) is an electrical discharge created by the ionization of a fluid surrounding an electrically charged conductor, such as air. In high-voltage sy… --- ## [What is the purpose of a Stock-bridge damper in High transmission lines?](https://forumautomation.com/t/what-is-the-purpose-of-a-stock-bridge-damper-in-high-transmission-lines/9814)
**Author:** [@instrumentationtechi](https://forumautomation.com/u/instrumentationtechi)\ **Replies:** 1\ **Last updated:** [September 3, 2021, 10:42am UTC](https://forumautomation.com/t/what-is-the-purpose-of-a-stock-bridge-damper-in-high-transmission-lines/9814 "2021-09-03T10:42:40Z")
Explain the need for Stock-bridge damper in High transmission lines Reference Image Provided by the Respondent --- ## [What is the purpose of Vibration Damper in power line?](https://forumautomation.com/t/what-is-the-purpose-of-vibration-damper-in-power-line/11959)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [April 12, 2024, 9:46am UTC](https://forumautomation.com/t/what-is-the-purpose-of-vibration-damper-in-power-line/11959 "2024-04-12T09:46:56Z")
A power line vibration damper’s primary purpose is to lessen the amplitude of vibrations in overhead transmission lines that are brought on by wind galloping or other environmental factors that might generate vibrations … --- ## [What are the 4 parameters of a Transmission Line?](https://forumautomation.com/t/what-are-the-4-parameters-of-a-transmission-line/14000)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [April 9, 2026, 4:01am UTC](https://forumautomation.com/t/what-are-the-4-parameters-of-a-transmission-line/14000 "2026-04-09T04:01:08Z")
Electric power lines do not behave like simple wires. They have four important properties that affect how electricity flows. Resistance (R) Resistance (R) is like friction in the wire. It slows down current and convert… --- ## [Why Transmission Lines Do not need a Neutral?](https://forumautomation.com/t/why-transmission-lines-do-not-need-a-neutral/13960)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [March 23, 2026, 3:12pm UTC](https://forumautomation.com/t/why-transmission-lines-do-not-need-a-neutral/13960 "2026-03-23T15:12:41Z")
Why Transmission Lines Do not need a Neutral? Transmission lines operate on a balanced three-phase system, where the sum of currents in all three phases is zero. This eliminates the need for a neutral conductor. In sin… --- ## [What Is Wireless Power Transmission? How Does It Work?](https://forumautomation.com/t/what-is-wireless-power-transmission-how-does-it-work/13749)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [December 2, 2025, 2:35pm UTC](https://forumautomation.com/t/what-is-wireless-power-transmission-how-does-it-work/13749 "2025-12-02T14:35:30Z")
Wireless power transmission (WPT) is the efficient transmission of electrical power from one location to another without the need of cables or any other material. This technique can be employed in cases where traditio… --- ## [How is power distributed from 11kV to 415V in a Typical Industrial Substation?](https://forumautomation.com/t/how-is-power-distributed-from-11kv-to-415v-in-a-typical-industrial-substation/13714)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [November 15, 2025, 2:59am UTC](https://forumautomation.com/t/how-is-power-distributed-from-11kv-to-415v-in-a-typical-industrial-substation/13714 "2025-11-15T02:59:21Z")
How is power distributed from 11kV to 415V in a Typical Industrial Substation? A power distribution system SLD for an 11kV to 415V substation illustrates the entire flow of electrical power: from the 11kV incoming supply… --- ## [What are the advantages of HVDC over HVAC transmission?](https://forumautomation.com/t/what-are-the-advantages-of-hvdc-over-hvac-transmission/6730)
**Author:** [@ashlin](https://forumautomation.com/u/ashlin)\ **Replies:** 0\ **Last updated:** [July 11, 2019, 11:28am UTC](https://forumautomation.com/t/what-are-the-advantages-of-hvdc-over-hvac-transmission/6730 "2019-07-11T11:28:41Z")
What is the aim of electric power supply To supply electrical power which is required for all the customers in an entire geographical area at all the time continuously and it must be done in low cost the geographical ar… --- ## [How Mutual Coupling affects Line Protection?](https://forumautomation.com/t/how-mutual-coupling-affects-line-protection/13609)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [October 7, 2025, 12:06pm UTC](https://forumautomation.com/t/how-mutual-coupling-affects-line-protection/13609 "2025-10-07T12:06:37Z")
What is Mutual Coupling? Mutual coupling happens when two or more transmission lines are near together and the magnetic field of one line produces a voltage (or) current in the adjacent line. This phenomenon is typically… --- ## [What is Sag in a Transmission Line?](https://forumautomation.com/t/what-is-sag-in-a-transmission-line/13600)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [October 3, 2025, 3:21pm UTC](https://forumautomation.com/t/what-is-sag-in-a-transmission-line/13600 "2025-10-03T15:21:49Z")
What is Sag in a Transmission Line? Sag in a transmission line is the vertical distance across the highest point of support (such as a tower) & the lowest point of a conductor hung between two supports. This occurs when … --- ## [Why is electrical energy transmitted at high voltage over long distances instead of low voltage?](https://forumautomation.com/t/why-is-electrical-energy-transmitted-at-high-voltage-over-long-distances-instead-of-low-voltage/13551)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [September 16, 2025, 3:19am UTC](https://forumautomation.com/t/why-is-electrical-energy-transmitted-at-high-voltage-over-long-distances-instead-of-low-voltage/13551 "2025-09-16T03:19:14Z")
Why is electrical energy transmitted at high voltage over long distances instead of low voltage? Transmitting electrical energy at high voltage is important for reducing power losses in the transmission system. When ene… --- ## [Why do we use aluminum for High-Voltage Transmission Lines when Copper is a better Conductor?](https://forumautomation.com/t/why-do-we-use-aluminum-for-high-voltage-transmission-lines-when-copper-is-a-better-conductor/13509)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [September 4, 2025, 7:45am UTC](https://forumautomation.com/t/why-do-we-use-aluminum-for-high-voltage-transmission-lines-when-copper-is-a-better-conductor/13509 "2025-09-04T07:45:26Z")
\[color=#ff0000\] Why do we use aluminum for High-Voltage Transmission Lines when Copper is a better Conductor? \[/color\] Transmission line conductors are materials that transport electrical electricity from one location t… --- ## [What are the types of Insulators used in Transmission lines? properties of insulating material](https://forumautomation.com/t/what-are-the-types-of-insulators-used-in-transmission-lines-properties-of-insulating-material/6698)
**Author:** [@ashlin](https://forumautomation.com/u/ashlin)\ **Replies:** 0\ **Last updated:** [July 8, 2019, 9:36am UTC](https://forumautomation.com/t/what-are-the-types-of-insulators-used-in-transmission-lines-properties-of-insulating-material/6698 "2019-07-08T09:36:46Z")
What is an Electrical insulator Electrical insulators have a very high resistive path through which current flow is not possible. It is mostly used in the electrical system to avoid the unwanted flow of the current to t… --- ## [How can you identify transmission line voltage by counting insulator discs?](https://forumautomation.com/t/how-can-you-identify-transmission-line-voltage-by-counting-insulator-discs/13441)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [August 12, 2025, 1:25pm UTC](https://forumautomation.com/t/how-can-you-identify-transmission-line-voltage-by-counting-insulator-discs/13441 "2025-08-12T13:25:43Z")
How can you identify transmission line voltage by counting insulator discs? Suspension and strain insulators in overhead transmission lines consist of several porcelain (or) polymer discs connected in series. The number… --- ## [Why are overhead transmission lines not insulated?](https://forumautomation.com/t/why-are-overhead-transmission-lines-not-insulated/13366)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 1\ **Last updated:** [July 9, 2025, 12:23pm UTC](https://forumautomation.com/t/why-are-overhead-transmission-lines-not-insulated/13366 "2025-07-09T12:23:26Z")
Why are overhead transmission lines not insulated? --- ## [Why is Electric Power Transmission Multiple of 11 i.e 11kV, 22kV, 66kV etc?](https://forumautomation.com/t/why-is-electric-power-transmission-multiple-of-11-i-e-11kv-22kv-66kv-etc/13154)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [April 11, 2025, 11:21am UTC](https://forumautomation.com/t/why-is-electric-power-transmission-multiple-of-11-i-e-11kv-22kv-66kv-etc/13154 "2025-04-11T11:21:24Z")
Why is Electric Power Transmission Multiple of 11 i.e 11kV, 22kV, 66kV etc? First and foremost, it is incorrect to claim that all transmission & distribution voltages are multiples of 11. In most cases, they are multiple… --- ## [What is the purpose of the Arcing Horns?](https://forumautomation.com/t/what-is-the-purpose-of-the-arcing-horns/13008)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [February 12, 2025, 10:48am UTC](https://forumautomation.com/t/what-is-the-purpose-of-the-arcing-horns/13008 "2025-02-12T10:48:49Z")
What is the purpose of the Arcing Horns? Overvoltage can affect gearbox and other electrical equipment. Overvoltages can occur for a variety of reasons, including Lightning strikes, Transient surges, Rapid load f… --- ## [Types of Transmission Losses](https://forumautomation.com/t/types-of-transmission-losses/12480)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [August 23, 2024, 3:11pm UTC](https://forumautomation.com/t/types-of-transmission-losses/12480 "2024-08-23T15:11:02Z")
Transmission line losses might be of the following types: 1). Resistance Losses (I²R losses) 2). Inductive Losses 3). Capacitive Losses 4). Dielectric Losses 5). Radiation Losses 6). Corona Losses 7). Leakage Loss… --- ## [Electricity Transmission Line Design](https://forumautomation.com/t/electricity-transmission-line-design/12450)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [August 19, 2024, 5:25pm UTC](https://forumautomation.com/t/electricity-transmission-line-design/12450 "2024-08-19T17:25:39Z")
A transformer boosts the power supplied by the generator and connects it to the transmission line using control devices like a circuit breaker. There are two types of transmission lines: Overhead lines and Cable li… --- ## [What is STUB protection in transmission system and switchyard area?](https://forumautomation.com/t/what-is-stub-protection-in-transmission-system-and-switchyard-area/12348)
**Author:** [@TSRS](https://forumautomation.com/u/TSRS)\ **Replies:** 1\ **Last updated:** [August 3, 2024, 11:16am UTC](https://forumautomation.com/t/what-is-stub-protection-in-transmission-system-and-switchyard-area/12348 "2024-08-03T11:16:21Z")
what is STUB protection in transmission system and switchyard area? --- ## [What is Sag and Span in Overhead transmission line?](https://forumautomation.com/t/what-is-sag-and-span-in-overhead-transmission-line/12284)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [July 15, 2024, 4:45pm UTC](https://forumautomation.com/t/what-is-sag-and-span-in-overhead-transmission-line/12284 "2024-07-15T16:45:37Z")
You can also follow us on AutomationForum.co, Facebook and Linkedin to receive daily Instrumentation updates. You can also follow us on ForumElectrical.com, Facebook and Linkedin to receive daily Electrical updates. --- ## [Why Overhead Transmission Conductors are Stranded?](https://forumautomation.com/t/why-overhead-transmission-conductors-are-stranded/12065)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [May 13, 2024, 6:33pm UTC](https://forumautomation.com/t/why-overhead-transmission-conductors-are-stranded/12065 "2024-05-13T18:33:34Z")
Overhead transmission lines are frequently stranded for multiple reasons: 1). Flexibility 2). Reduced Stress Concentration 3). Improved Current Carrying Capacity 4). Enhanced Resistance to Galloping 5). Reduction of… --- ## [Why in the Overhead Transmission Lines, the Ground Wire is above the Phase Line?](https://forumautomation.com/t/why-in-the-overhead-transmission-lines-the-ground-wire-is-above-the-phase-line/12027)
**Author:** [@TSRS](https://forumautomation.com/u/TSRS)\ **Replies:** 1\ **Last updated:** [May 2, 2024, 4:16pm UTC](https://forumautomation.com/t/why-in-the-overhead-transmission-lines-the-ground-wire-is-above-the-phase-line/12027 "2024-05-02T16:16:22Z")
Why in the Overhead Transmission Lines, the Ground Wire is above the Phase Line? --- ## [How can Temperature affect Sag in an Overhead Line?](https://forumautomation.com/t/how-can-temperature-affect-sag-in-an-overhead-line/11964)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [April 15, 2024, 4:40pm UTC](https://forumautomation.com/t/how-can-temperature-affect-sag-in-an-overhead-line/11964 "2024-04-15T16:40:11Z")
What is Sag? Sag is defined as the vertical difference in level across points of support & the conductor’s lowest point. Sag is a crucial factor to consider since it influences the Clearance, Tension and Length of an O… --- ## [Why is alternating current (AC) better for long-distance power transmission than direct current (DC)?](https://forumautomation.com/t/why-is-alternating-current-ac-better-for-long-distance-power-transmission-than-direct-current-dc/11000)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [March 25, 2023, 1:17am UTC](https://forumautomation.com/t/why-is-alternating-current-ac-better-for-long-distance-power-transmission-than-direct-current-dc/11000 "2023-03-25T01:17:31Z")
Alternating current, also known as AC, is preferred over direct current, also known as DC, for the transmission of electrical power over long distances for a number of reasons, including the following: Less amount of …