An electrical substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers.
What is the difference between power station and substation?
A power station is a place where electricity is copied and substations change voltage. A place where substations change voltage. … Substation: usually voltage level below 110KV step-down substation; substation: including a variety of voltage levels of “step-up” and “step-down” substation.
What is a substation for power?
Distribution substations transform voltage generally from high to low, so that it can be distributed down either overhead or underground power lines before being delivered to the customer. A substation includes transformers, control equipment for switching and system protection to transfer power to distribution lines.
What is called a substation?
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. … The word substation comes from the days before the distribution system became a grid.
What is the main purpose of a substation?
The purpose of a substation is to ‘step down’ high voltage electricity from the transmission system to lower voltage electricity so it can be easily supplied to homes and businesses in the area through lower voltage distribution lines.
Why is there an extra wire in a typical power substation?
Many towers also have extra wires running along the tops of the towers. These are ground wires and are there primarily in an attempt to attract lightning.
Is it OK to live near a substation?
There is no need for any extra “safe distance” between a property and a substation to achieve compliance, and there are no restriction on how close a property can be to a substation.
Is it bad to live near a transformer?
Most scientists believe that exposure to the low-level EMFs near power lines is safe, but some scientists continue research to look for possible health risks associated with these fields. If there are any risks such as cancer associated with living near power lines, then it is clear that those risks are small.
How much does it cost to build a power substation?
While the cost for one additional transformer foundation and appurtenant materials might cost about $150,000, the transformer itself might cost anywhere from $900,000.00 to $1,200,000.00 depending on it’s capacity.
What is called outdoor substation?
A substation which is used for all voltage levels between 55 KV to 765 KV is called outdoor substation. Such type of substation requires less time for construction but uses more space. The outdoor substations are mainly classified into two types, namely pole-mounted substation and foundation-mounted substations.
What is the converting substation?
In DC power transmission lines, converter substations are used to convert a three-phase current to a direct current (rectification) at the sending end of the line and to achieve a reverse conversion (inversion) at the receiving end of the line. Converter stations are located at the terminals of a DC transmission line.
How many types of electrical substation are there?
These substations are classified into three types based on voltage level. High voltage substation serves voltage in range of 11 kV to 66 kV. Extra high voltage substation serves voltage in range of 132 kV to 400 kV. High voltage substation operates above 400 kV voltage range.