What is the meaning of 33 11kV substation?

What is the meaning of 33 11kV substation?

Thus, when a substation is of rating 66/11 kV, means substation has been designed to receive 80 MVA on 66 kV and it will distribute the received power on 11 kV. Again, substation of rating 33/11kV means, the substation has been designed to receive 5 MVA of power at 33 kV and it will distribute the same on 11 kV.

What is the 33 11kV substation equipment?

Power substation consists of: Switchgear: isolators, circuit breakers, earthing switches etc. Controlgear: current transformers, voltage transformers, contactors etc. Protection equipment: relays, fuses, surge arrestors etc.

Which type of fuse is used in 33 11kV substation?

MV-HV fuses, manufactured by ABB, suitable for 3.3kV, 11kV and up to 33/36kV transformer applications in accordance with IEC specification.

What is an injection substation?

Power generated at low voltages need to be stepped up for transmission over long distances and also need to be stepped down for distribution to required levels of consumption at industrial and domestic use – all this is achieved by electric sub stations. Air and Gas insulated substations. …

How do you identify 33 11kV overhead lines?

For the 11KV transmission line, generally Double Pole(DP) structure is used. In a transmission line, if three pieces of disc insulators per phase are connected, then the KV of the transmission line is 33KV.

What are different types of substations?

Substation Types: Although, there are generally four types of substations there are substations that are a combination of two or more types.

• Step-up Transmission Substation.
• Step-down Transmission Substation.
• Distribution Substation.
• Underground Distribution Substation.
• Substation Functions.
• Substation Equipment.

What is 11kV used for?

The 11kV lines are used in residential areas and is what feeds the local transformers, which then distributes power to the buildings in the area. 33kV lines on the other hand involve much higher voltages and are used to distribute power from one small sub-station to another.

Which conductor is used in 11kV line?

ACSR Conductors
The other types of conductors (mentioned from S. No. 3 to 7 are all ACSR Conductors and are commonly used on 11kv lines, except Dog conductors.