Comments on: Under the 110 kV power line

By: Tomi Engdahl

Tomi Engdahl — Tue, 01 Oct 2024 11:46:46 +0000

https://hackaday.com/2024/10/01/the-challenges-of-charging-drones-from-power-lines/

By: Tomi Engdahl

Tomi Engdahl — Wed, 17 Jul 2024 11:37:54 +0000

The number of insulators on a high voltage (HV) power line depends on the line’s voltage:
33 kV: 3 disc insulators per suspension string
132 kV: 10 disc insulators per suspension string
220 kV: 15 disc insulators per suspension string
230 kV: 15 insulators
400 kV: 23 insulators

By: Tomi Engdahl

Tomi Engdahl — Fri, 10 May 2024 05:21:52 +0000

Tap changer
https://youtu.be/zV1c565Pyi8?si=1LKrevJ-F_stMaI6

By: Tomi Engdahl

Tomi Engdahl — Tue, 30 Jan 2024 11:07:04 +0000

https://hackaday.com/2024/01/27/harvesting-electricity-from-high-voltage-transmission-lines-using-fences/

By: Tomi Engdahl

Tomi Engdahl — Sun, 24 Dec 2023 17:58:18 +0000

Live line inspection
https://youtu.be/9YmFHAFYwmY?si=pphFw-ngOAkBwbXj

By: Tomi Engdahl

Tomi Engdahl — Fri, 08 Dec 2023 10:09:54 +0000

Aluminum is harder to work with than copper to make safe electrical installation. USA tried once to use aluminum wiring in house widely, but gave up that idea due increased number of house fires caused by bad aluminum wiring.

Aluminum is a softer metal than copper, and besides being prone to damage during installation, it also expands more when heated. The expansion and contraction of the wire can lead to wire creeping out from its place under the screw holding it in place, causing loose wires and overheating.

By: Tomi Engdahl

Tomi Engdahl — Fri, 08 Dec 2023 09:56:36 +0000

Copper is not cost-effective for large-scale transmission lines. Copper is a good conductor of electricity, but it is also expensive and heavy. Aluminum is a much better choice for transmission lines due to its low cost, light weight, and high conductivity.

that why we use aluminium for fixed Connections and copper for panel to machine connection …

By: Tomi Engdahl

Tomi Engdahl — Fri, 08 Dec 2023 09:55:54 +0000

Copper is actually a common material for transmission lines, but it’s not used in all cases because of its high cost and limited durability. Copper is expensive to manufacture and can corrode over time, so it’s not always the best choice for long-term use. Instead, many transmission lines are made from cheaper and more durable materials like aluminum or steel.

Copper is a good electric conductor but we use aluminum as conductors for transmission lines. The main reason for not using copper is cost. the conductivity of copper is higher than that of aluminum. So for the sake of cost, we use aluminum instead of copper.

With a high tensile steel wire through the middle for support

By: Tomi Engdahl

Tomi Engdahl — Fri, 08 Dec 2023 09:53:01 +0000

Aluminium is used because it has comparatively less weight than copper and is also available at a cheap rate. Aluminium wire will be much thicker but it will be lighter compared to copper since the density of aluminium is only one third of that of copper. The conductivity-to-weight ratio of aluminium is better than that of copper that is why we prefer aluminium in overhead power connections.Technically , aluminum wire is 1.4 times thicker than the wire we would use if it was copper:we reduce 20% in resistance and hence I²R power losses from about 6% to 5%, saving 1% of all energy produced and transmitted for years to come. we save 33% in construction costs – tower strength required is less as the wire is 66% of the copper weight which save 90% of the cost of the wire itself due to material costs.

https://www.facebook.com/story.php?story_fbid=pfbid03dBMQxzoLwA2dsMMdkBKiQoCDumJ59UVovRkYobnDJrVhUSGQWVv8frYCuEh4kUsl&id=100047373702938&post_id=100047373702938_pfbid03dBMQxzoLwA2dsMMdkBKiQoCDumJ59UVovRkYobnDJrVhUSGQWVv8frYCuEh4kUsl

By: Tomi Engdahl

Tomi Engdahl — Thu, 14 Sep 2023 17:29:24 +0000

Electrical Corona Effect
https://youtu.be/m-jeQgXAqJA?si=C1NxQJkS8xjYTDUh