What does a switchyard do?
Switchyard is a switching station which is the main link between the generating plant and the transmission system. It can be considered as the heart of the power plant, the generated power will only be worthy if it can be transmitted and received by the consumers.
What is a substation building?
Substations receive high-voltage power from stations and grids via the overhead lines of transmission systems. It’s here, at the substation, where voltage levels are transformed before continuing on through the power network.
What is wave trapper?
A line trap, also known as wave trap, or high-frequency stopper, is a maintenance-free parallel resonant circuit, mounted inline on high-voltage (HV) AC transmission power lines to prevent the transmission of high frequency (40 kHz to 1000 kHz) carrier signals of power line communication to unwanted destinations.
How long does it take to build a substation?
Typically electric substation projects can take 2-3 years from the time management decides to pursuit a project till the time bids are received from a contractor to build it. Actual expenses are typically realized about one year after the date from which the job is awarded to the winning contractor.
What is difference between grid station and substation?
Substations are connected to each other by the transmission ring circuit. An electrical grid station is an interconnection point between two transmission ring circuits, often between two geographic regions.
What are stone laid in switchyard?
Stones eliminate the growth of small weeds and plants inside the switchyard or transformer yard. It protects the moisture content evaporation and keeps the ground wet. Most in switchyard Power Transformers insulated with the insulation oil. The insulating oil spillages catches fire easily.
Where is wave trapper located?
Tuning Device of Wave Trap: This device is securely installed inside the main coil. It adjusts blocking frequency or bandwidth and consists of coils, capacitors, and resistors.
What is wave trap and CVT?
The wave trap is used to trap the waves of the high-frequency signal which flows in the transmission line. The wave trap is suitably designed to divert the high-frequency communication signal to the PLCC (power line carrier communication) panel with the help of a Capacitor-Voltage Transformer (CVT).
Do you need planning permission for a sub station?
PLANNING PERMISSION / OTHER STATUTORY CONSENTS Most new overhead line connections will require planning permission. ❖ Typically we can install small substations (up to 29m3 in size) and lay underground cables without the need for planning permission.
Why gravel is used in switchyard?
Most in switchyard Power Transformers insulated with the insulation oil. The insulating oil spillages catches fire easily. So Stones/Gravel is provided to protect from fire when oil spillage takes place.