An injection substation is
a station where a higher voltage is stepped down to a lower voltage
, especially for distribution in a densely populated area.
What is substation and its function?
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.
What are the different types of substations?
- Step-up Type Substation. This type of substation gets the power supply from a near producing facility. …
- Customer Substation. …
- System Stations. …
- Distribution Type Substation. …
- Step-down Type Substation. …
- Underground Distribution Substation. …
- Switchyard. …
- 11kv Substation.
What is substation and its types?
Primary Grid Substation
– Created at suitable load centre along primary transmission lines. Secondary Substation – Along secondary transmission line. Distribution Substation – Created where the transmission line voltage is step down to supply voltage.
What do you mean by 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.
Why is it called a substation?
Actually, the name came before the electrical system was a grid. These substations were smaller plants that were no longer being used because of the construction of larger generation plants.
They received their energy from these larger plants and then distributed
; thus the name “substation”.
Why is substation needed?
To step up or step down AC voltage using transformer(s)
Thus more energy can be delivered to do useful work. Voltages at the distribution end need to be stepped down for utilization by customers. Substations
provide the necessary real-estate to install a transformer for power transmission and distribution
.
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 11kv substation?
11 KV Substation.
Pole-Mounted Sub-Station
: 1. It is a distribution sub-station placed overhead on a pole. It is the cheapest form of substation as it does not involve any building work.
What is 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. …
Where step up substation is used?
A step-up transmission substation receives
electric power from a nearby generating facility
and uses a large power transformer to increase the voltage for transmission to distant locations. A transmission bus is used to distribute electric power to one or more transmission lines.
What is primary substation?
The primary substations are
the interconnection between high voltage and medium voltage
. The secondary substations are the interconnection between medium and low voltage. SEA produces HV/MV, MV/MV, MV/LV transformers, both liquid immersed and dry type.
What type of transformer is used in substation?
For example, a typical substation transformer would be rated
69-13 kV and 20 MVA
; meaning the primary or high voltage is 69 kV, the secondary or low voltage is 13 kV and the transformer has a power rating of 20 MVA or 20,000 KVA.
Why DC is used in substation?
The main reason for using DC supply in substation or power stations is
to provide a continuous power supply to the control circuit
. DC is a reliable source of power supply because it can obtain from batteries. … The battery has electrical energy storing capability that’s why it can be used for backup power supply.
What is another word for substation?
| station base | locus nick | spot thana | station house cop shop | kotwali home office |
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What is the difference between switchyard and substation?
is that substation is a site where electricity supplied by long-distance (high-voltage) transmission lines is transformed and/or regulated for local (low-voltage) distribution while switchyard is part of a railway with an arrangement of switches (or points) allowing trains to be diverted and reassembled.
