A power transmission base as a power transmission system is a type of electrical installation that is used to transmit power from power plants and producers to the power distribution network. This system includes various equipment that is used to convert and transfer high-voltage electricity to lower voltage.
Power transmission base
Content list
Basic components of power transmission
The power transmission base includes various components that we mention below:
- Transformer: : This equipment is used to convert AC voltage from high voltage to lower voltage.
Transformers are divided into two main types: transmission transformers and distribution transformers. - Lines: Lines are known as one of the important components in the power transmission base. These equipment are used to transfer electricity from power plants to the electricity distribution network.
Lines are divided into two main types: AC lines and DC lines. - Switches: Switches are known as another basic component of power transmission. These equipment are used to control the flow of electricity in the electricity transmission network.
Switches are divided into two main types: AC switches and DC switches.
Basic principles and concepts of power transmission
- Voltage: Voltage is used as a measure of electrical pressure in an electrical system and is measured in volts (V).
- Current: Current is used as a measure of the number of moving electrons in an electrical system. And it is measured with the unit of an ampere (A)
- Power: Power is used as the amount of work done by an electrical system per unit time and is measured in watts (W).
- Energy: Energy is used as the amount of work done by an electrical system in a period and is measured in units of Joules (J).
Types of power transmission bases and telescopic beams
Regarding the types of power transmission bases, we can categorize them as follows:
- AC power transmission bases: AC power transmission bases include transformers, lines, and switches that are used to transmit electricity with AC voltage. These types of foundations are used in high-voltage electrical systems such as power plants and power generators.
- DC power transmission bases: DC power transmission bases include lines, switches, and electronic equipment that are used to transmit electricity with DC voltage. These types of bases are used in low-voltage electrical systems.
- Aerial power transmission bases: Aerial power transmission bases include power lines and poles that are used for high-voltage power transmission. These types of foundations are used in remote and mountainous areas due to the difficulty of accessing the land.
- Underground power transmission bases: Underground power transmission bases include lines, cables, and electronic equipment that are used for low-voltage power transmission. These types of foundations are used in urban areas due to the lack of impact on the environment and improving the appearance of the city.
- Linear power transmission bases: Linear power transmission bases include lines, switches, and transformers that are used to transmit high-voltage electricity linearly. These types of bases are used in open and remote areas due to ease of installation and no need to build electric poles.
- Submarine power transmission bases: Submarine power transmission bases include lines, cables, and electronic equipment that are used for low-voltage power transmission under the sea. These types of foundations are used in marine areas due to the lack of impact on the environment and improving the appearance of beaches.
Telescopic beams
These beams are made of metal and different lengths and are used as part of power transmission lines. In addition to power transmission, telescopic beams have other tasks that will be discussed further.
- Power transmission: Power transmission from the starting point to the destination point is one of the most important tasks of telescopic beams. Using their physical properties, such as electric current and magnetic field, these beams transmit electricity from the starting point to the destination point.
- Support for power transmission lines: these beams act as physical support for the lines and by bearing the pressure and weight of the lines, they keep them in the correct path and prevent them from breaking and being damaged.
- Resistance to weather conditions: Telescopic poles must be resistant to various weather conditions, such as wind, rain, snow, and dust. These beams provide the necessary resistance against weather conditions by using their metal material.
- Safety against accidents: Telescopic booms should be safe against various accidents, such as earthquakes, floods, and fires. These beams, using their metal material, provide the necessary resistance against accidents and prevent the dangers caused by them.
- Reducing voltage drop: Voltage drop in power transmission lines is one of the basic problems that can be reduced by using telescopic beams. By using telescopic poles with appropriate lengths, the amount of voltage drop in power transmission lines is reduced.
- Improving the quality of electricity transmission: using telescopic poles with the right length improves the quality of electricity transmission. By reducing the voltage drop and increasing the stability of power transmission lines, the quality of power transmission improves.
In general, telescopic beams are one of the main structural components of the power transmission system, which, in addition to power transmission, can help improve the quality of power transmission and reduce costs related to the maintenance of power transmission lines.
Construction of mesh and skeleton metal masts
These masts are made of metal and include metal mesh with different diameters, side metal parts, metal bases, and nuts and bolts, which will be discussed further on how to make mesh metal mast.
- Mast design: According to the type of power transmission lines, their weight and pressure on the mast, the angle and height of the mast and the type of metal material used, the exact design of the mast is prepared.
- Metal cutting and bending: By using metal bending and cutting machines, various parts of the rig are prepared. Metal parts include metal mesh with different diameters, side parts, and metal bases.
- Parts welding: the parts prepared in the previous step are connected using a welding machine. At this stage, welds must be done carefully on the metal parts to make the mesh metal mast with the required strength and stability.
- Metal bases: Metal bases are a part of the mesh metal mast that are used to install and fix the mast on the ground. These bases are connected to the mesh metal mast using nuts and bolts.
- Painting: The mesh metal mast is painted to be resistant to various weather conditions, such as rain and corrosion.
- Installation and registration: In this step, the mesh metal mast is installed and fixed. The metal legs of the mast are fixed to the ground using nuts and bolts, and the mesh metal mast is installed on them.
To view the technical catalog of mesh masts and other products, visit media page
In general, the construction of a metal mesh mast is a complex process that requires detailed design, metal cutting and bending, welding of parts, metal bases, painting, and installation and registration. By using a quality and resistant mesh metal mast, it is possible to avoid the dangers caused by different weather conditions, such as wind and rain, and help to transmit quality and stable electricity
References:
- Transmission Line Design Handbook”, David K. Johnson, 2018.
- Electric Power Transmission System Engineering: Analysis and Design, Turan Gönen, 2017.
- Transmission Line Towers and Details”, S.S. Bhavikatti, 2017.
- Transmission and Distribution Electrical Engineering” -Colin Bayliss & Brian Hardy
- Power System Analysis” – Arthur R. Bergen & Vijay Vittal
