Question
Download Solution PDFAccording to general practice, the land required for a 400 kV substation is _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Substation: The assembly of apparatus where we have to change the characteristics of electric power such as voltage, current, power factor, etc.
Land required for different substation
|
Type of Substation |
Area Required |
|
132 kV Substation |
10 acres |
|
220 kV Substation |
25 acres |
|
400 kV Substation |
50 acres |
Important Points
High Voltage Substation (HV Substation): Involving voltage between 11 kV and 66kV.
Extra-High Voltage Substation (EHV Substation): Involving voltage between 132 kV and 400kV.
Ultra-High Voltage Substation (UHV Substation): Operating on voltage above 400 kV.
Indoor Substation:
- In such a substation, the apparatus is installed within the substation building.
- They are usually mounted up to 11 kV because of space requirements.
- It also can be erected up to 66 kV when the surrounding atmosphere is contaminated with impurities such as metal corroding gases, fumes, conductive dust, etc.
Outdoor Substation:
- These are either Pole Mounted or Foundation Mounted type.
- Pole Mounted type is used for distribution of power in localities by using Single Pole or H Pole or 4-Pole structure.
- Foundation Mounted type Substation used above 250 kVA and 33 kV
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