What is a main 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.
What do you mean by electrical substation?
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 secondary sub station?
Object definition. Secondary substation MV/LV – it is a facility for medium voltage to low voltage transformation for end consumer needs. The low voltage level is divided to independent branches for groups of end consumers.
How many types of electrical substations are there?
Sub-stations are an important part of the power system. The continuity of supply depends to a considerable extent upon the successful operation of sub-stations. There are four major types of substations.
What is Sub Station?
Definition of substation : a subordinate or subsidiary station: such as. a : a branch post office. b : a subsidiary station in which electric current is transformed. c : a police station serving a particular area.
What are the main equipment of a substation?
Ammeters, Voltmeters, Wattmeters, kWh meters, KVARH meters, power factor meters reactive volt-amperes meters are installed in substations to control and maintain a watch over the current flowing through the circuits and over the power loads.
Which equipments are installed in the main substation?
The following equipment are installed in distribution substations:
- Distribution Transformer.
- Circuit breaker.
- Lightning Arrester.
- Air Break (AB) switches / Isolator.
- Insulator.
- Busbar.
- Capacitor Bank.
- Earthing.
What is primary and secondary electricity?
Distribution lines on the high voltage side of the distribution transformer are called primary distribution lines or primaries. Those on the low-voltage side of the distribution transformer are called secondary distribution lines or secondaries. Primary lines have voltages ranging from 2,300 to 39,000 volts.
What is primary grid substation?
Primary grid substations. Such substations are located at suitable load centres along the primary transmission lines. In these substations, the primary transmission voltage is stepped down to different suitable secondary voltages.
What is function of CT and PT?
A CT lowers the current signals for measurement purposes, while a PT lowers high voltage values into lower ones. The transformers are designed to measure whether power systems are both accurate and safe. In addition, the CT and PT transformer reduces the current and voltage from high to low value.
What is the function of substation?
Substations are designed to accomplish the following functions, although not all substations have all these functions: Change voltage from one level to another. Regulate voltage to compensate for system voltage changes. Switch transmission and distribution circuits into and out of the grid system.
What is HT substation?
LT Panel is an electrical distribution board that receives power from generator or transformer and distributes the same to various electronic devices and distribution boards.
What is the meaning of 33kV substation?
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.
Which earthing is used in substation?
The copper products are used typically to provide electricity substation earthing to medium/high voltage grids containing electrical infrastructure, cables, switchgear and transformers.