Inductor: Learn the Purpose, Cost, and Lead Time to Procure
An inductor prevents sudden change in current magnitude. It is installed in substations to:
Substation Equipment
Power substations contain transformers, breakers, switches, and plenty other critical pieces. Articles under this category explains the equipment design in detail.
Capacitor Bank: Learn the Purpose, Cost, and Lead Time to Procure
Capacitors consume active power and release reactive power. They also present a low impedance to harmonics in other words they attract harmonic frequencies. Thus, capacitor banks are installed in substations to:
Insulator: Learn the Purpose, Cost, and Lead Time to Procure
Insulators make sure the energized parts do not touch the ground. All substation equipment in contact with an energized line or bus employs an insulator.
Current Transformer: Learn the Purpose, Cost, and Lead Time to Procure
Relays need to know the current magnitude – either for metering or protection. A current transformer (CT) fulfills this role, stepping down thousands of amps to (typically) 5A which is then fed to a relay.
Voltage Transformer: Learn the Purpose, Cost, and Lead Time to Procure
Relays need to know the voltage magnitude – either for metering or protection. A voltage transformer fulfills this role – it steps down thousands of volts to 67V/115V in high voltage stations (at the medium voltage the VT’s step it down to 120V) which is then fed to a relay.
