Hi, guys welcome to another post. Here we will learn Difference Between Transmission and Distribution Line. In an electrical power system, there are two main types of transmission lines used distribution and transmission lines.These two systems of power distribution provide different features and advantages.
In this post, we will cover different aspects to know about the details differences in this power system. So let get started Difference Between Transmission and Distribution Line.
Difference Between Transmission and Distribution Line
What is a Transmission line
- In an electrical power system transmission line is wires or cables created to send power. They are used to send power at larger distances so their wave nature must take into account.
- These lines are used to transmit power at longer distances in the country
- They can transmit a high value of volts normally sixty kilovolts to five hundred kilovolts
- Metallic towers are used to give support to these systems
- These wires can move power in both sides
- It mostly used in three-power system
- The dia of these lines is larger than the distribution lines
- The damage of these lines can cause high power disturbance so need to maintain it firstly
- Its main types are Long transmission lines, Medium transmission lines, Short transmission line
- It is not insulated
What is Distribution Lines
- These lines are used to transmit power to loads from the substation.
- They are used to carry power at shorter distances.
- To give support to these lines, wooden poles are used.
- These can transmit power in one direction.
- employed for a single-phase system
- Their dia is less than the transmission lines.
- Used to deliver power to buildings and houses
- Either has less power but can damage
- They operate volts less than the sixty-nine and 220 volts.
- These lines are passive systems, meaning they are not controlled by any computer or operator, and due to their single-direction flow, they do not need any further maintenance.
- The main types of distribution systems are radial distribution lines and ring distribution lines. Interconnected distribution lines
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These lines have insulation. That is all about the difference between transmission and distribution lines; all details have been explained. If you have any further queries, ask in the comments. This power system has made delivery of power a very easy process. At generation, larger transformers called power transformers are connected and transmit the power through the use of a transmission line. That power reaches the substation, where this high voltage gets converted to a lower value and then transmitted to loads and customers.
Transmission lines vs. distribution lines
Transmission Lines
- The high-voltage power lines used for current carrying at production points to substations are called transmission lines.
- These lines have longer lengths and carry current for longer distances.
- It has a high voltage level that is about 69 kV.
- These lines work on a 3-phase system.
- They come with high-current features.
- The size of conductors for transmission lines is thick.
- They are compatible with high-length steel towers.
- They come with high-power handling features.
- It is normally bi-directional, and current flows in two directions. It needed features for balancing the power grid.
- The transmission lines work actively as compared to distribution lines. So needed more maintenance.
- They deliver power from power stations to the substations.
Distribution Lines
- These are low-power lines and deliver power from substations to distribution stations and users.
- These lines deliver power to shorter distances and have short lengths.
- These lines work for lower voltages, like less than 69 kV and 440 kV and 230 kV.
- These carry single or three phases.
- These lines use 4 wires, with 3 wires used for phases and one for neutral.
- They have a low current carrying capacity.
- It uses thin conductors.
- They get supported.
- The support for the distribution lines is usually provided by wooden poles, RCC poles, rail poles, etc.
- It has lower power handling features than transmission lines.
- These lines are conventionally made with mono-directional and current flow in a single direction.
- These lines needed less maintenance than transmission lines.
What is the difference between a transmission and distribution network?
- The transmission network is used for transporting power all over the county from the generating point to the load. The transmission network does not directly deliver power to homes and businesses, and it is fed through a distribution system with the use to send voltage down to 132 kV and below.
What voltage are transmission lines?
- The transmission lines have features for carrying current a longer distance from the production point to the load. The current for transmission lines is provided with a voltage of more than 200 kV for increased efficiency. The voltages are 220 kV to 500 kV.
Are transmission lines AC or DC?
- Electric power is produced, transmitted, and distributed like AC. AC power is best for effective transmission and distribution, like voltage increases or decreases with the use of a transformer.
What are the 2 types of transmission?
- Manual transmissions.
- Automatic transmissions.
- CVT transmissions.
What is the use of transmission lines?
- Power transmission lines are used for connecting power stations and substations and connecting substations. For properly transmitting high power for high voltage without losses and important for providing electricity.