Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Power factor correction substations are located at
Sending end of the transmission line
Receiving end of the transmission line
Both Sending end and receiving end of transmission line
Any point of transmission line
Receiving end of the transmission line
Power factor correction substations are typically installed at the receiving end of a transmission line to compensate for the reactive power consumed by the load. This minimizes line losses and maintains the voltage profile within permissible limits by supplying the necessary reactive power locally.
Power factor correction substations are typically installed at the receiving end of a transmission line to compensate for the reactive power consumed by the load. This minimizes line losses and maintains the voltage profile within permissible limits by supplying the necessary reactive power locally.
QcтАЛ=P(tan╧Х1тАЛтИТtan╧Х2тАЛ) тАФ Required reactive power for correction
PF=cos╧Х=SPтАЛ тАФ Power factor definition
The transmission line possesses inductive reactance which consumes reactive power, causing a voltage drop along the line. By placing capacitors or synchronous condensers at the receiving end, the reactive power demand is met locally, reducing the current flowing through the line and effectively improving the power factor at the sending end.
Reduces transmission line I2R losses.
Improves voltage regulation at the load end.
Increases the active power carrying capacity of the line.
Typically uses shunt capacitor banks or synchronous condensers.
Reduced energy losses in the transmission line
Improved voltage profile at the receiving end
Added cost of installation and maintenance
Potential for harmonic resonance if not filtered properly
Industrial distribution substations
Large manufacturing units with inductive loads
The placement at the receiving end is crucial because reactive power is difficult to transmit over long distances; it is most efficient to generate or compensate it at the load side.
Options A, C, and D are less efficient because correcting PF at the sending end does not reduce the current flowing through the line conductors, thus failing to mitigate I2R losses.
B is correct тАФ Power factor correction equipment is installed at the receiving end to minimize the transmission of reactive current through the lines.
Always remember that while active power (P) can be transmitted over long distances, reactive power (Q) should be provided as close to the load as possible to maximize system efficiency.