What is clearance in substation?
What is clearance in substation?
The ground clearance is the distance between ground level and bottom of any insulator in an outdoor substation. This ensures that any person working in the area cannot touch or damage the insulators accidentally. This clearance is kept as 2.5 meters for all voltage levels.
What is the spacing between phase conductors of a 220 kV line?
Right Answer is: According to the Electrical safety rule, the spacing between the phase conductor of 220 kV is 6m.
What is the minimum safe working clearance from ground for 220 KV line?
Permissible Min ground Clearance of Electrical Line
| KV | Ground Clearance | Over National Highway |
|---|---|---|
| 66 KV | 6.1 Meter | 8.0 Meter |
| 132 KV | 6.1 Meter | 8.6 Meter |
| 220 KV | 7.0 Meter | 9.8 Meter |
| 400KV | 8.8 Meter | 10.8 Meter |
What is the safe distance from 220 kv power line?
Minimum clearance of 6.1 meters has to be maintained at all points between 400 KV and 220 KV line conductors under worst condition.
What is safety clearance?
A clearance guide is the amount of space required for the safe clearance of equipment around a worksite. All industries have standard clearance regulations to ensure safety in the workplace.
What is meant by electrical clearance?
The electrical clearance is the electrical isolation between two conductive components, whereas the creepage indicates the conduction of electricity across the surface of a nonconductive component. The clearance and creepage distance are two important parameters while designing an electrical assembly.
What is the minimum clearance between the ground and a plane of 220 kV line?
SOLUTION. According to the Electrical safety rule, the minimum clearance between the ground and a 220 kV line is about 7m.
What is the spacing between two conductors?
The two most important spacing distances are the shortest distance through air between any two conductors (clearance distance), and the linear distance traveled over the surface of the PCB between any two conductors (creepage distance). Both of these distances are determined by the voltage used on the PCB.
What is minimum clearance?
Minimum Clearance means the vertical distance measured from grade to the lower limit of such sign, sign structure or architectural element.
What is the minimum safe working clearance from ground for 220 kV line?
What is the minimum ground clearance of 220kV transmission line?
For, same logic the minimum ground clearance of 220KV transmission line would be, 220KV – 33KV = 187KV and 187KV/33KV ≈ 5.666. Now, 5.666 X 0.3 = 1.7 meter. So, as per logic, the ground clearance of 220KV bottom conductor would be, 5.2 + 1.7 = 6.9 ≈ 7 meter. For, same logic the minimum ground clearance of 132KV transmission line would be,
What is the ground clearance of a 400kV bottom conductor?
So, as per logic, the ground clearance of 400KV bottom conductor would be, 5.2 + 3.33 = 8.53 ≈ 8.84 meter (considering other factors). Now, 5.666 X 0.3 = 1.7 meter.
Where is the 220 kV substation in Patiala?
About 220 kV substation ‘Passiana’ 220 KV Passiana substations is one of the important substations of Punjab State Transmission Corporation Limited (PSTCL). It is the main source of power supply in the district of Patiala. The grid 220 KV substation, Passiana is situated 7-8 km from bus stand of Patiala to Samana Road.
How many acres of land is there in 220 kV substation?
The grid 220 KV substation, Passiana is situated 7-8 km from bus stand of Patiala to Samana Road. It contains 60.5 acres of land, 20.2 acres for yard and the rest of land for office building and residential colony.