What is the function of line trap?
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.
What is PLCC equipment?
The Power line carrier Communication (PLCC) uses the existing power infrastructure for the transmission of data from sending to receiving end. It works in full duplex mode. PLCC system consists of three parts: The terminal assemblies include the receivers transmitters and protective relays.
What is mean by PLCC?
(Plastic Leaded Chip Carrier) A plastic, square, surface mount chip package that contains leads on all four sides.
How does PLCC work in substation?
Power-line carrier communication (PLCC) is mainly used for telecommunication, tele-protection and tele-monitoring between electrical substations through power lines at high voltages, such as 110 kV, 220 kV, 400 kV. The modulation generally used in these system is amplitude modulation.
Are power lines technology?
Powerline networking is a technology that sits between wired and wireless. Rather than shoot network data into the air or through cables draped along baseboards, it uses the existing electrical wiring in a home or office.
What are the advantages of power line carrier?
The main advantage of power line carrier communication is the reduced cost because of utilizing the existing power lines. In case of a power supply for a whole building, the main cables are dropped through-out the building and it bears all the load thruster by equipment or devices run on electricity.
What is LMU substation?
English: Line Matching Units is a composite unit consisting of Drain Coil, Isolation transformer with Lightning Arrester on its both the sides, a Tuning Device and an earth switch. Tuning Device is the combination of R-L-C circuits which act as filter circuit. LMU is also known as Coupling Device.
What is LMU in PLCC?
LMU is a composite unit consisting of Drain Coil, Isolation transformer with Lightning Arrester on its both the sides, a Tuning Device and an earth switch. Tuning Device is the combination of R-L-C circuits which act as filter circuit.
What is the function of drain coil?
Drain Coils: The purpose of the drain coil in the above figure is to provide high and low impedances to the carrier frequency and power frequency. Coupling Capacitors: The function of the coupling capacitor is to provide high and low impedances to the power frequency and carrier signal.
What is a tuner and how does it work?
What is a Tuner? A tuner is a device musicians use to detect pitch accuracy. It will let a musician know if the note they are playing is sharp (too high), flat (too low), or if it is in tune. The accuracy of a pitch is what musicians call intonation.
What is a line tuning unit?
Line-tuning units, like the trap, may be resonant with the coupling capacitor at either one or two specific frequencies, or across a broad band of carrier frequencies. Frequently, the coupling capacitor and line-tuning unit form a highpass filter.
What is a line tuner in a capacitor?
Line Tuners. Line-tuning units, like the trap, may be resonant with the coupling capacitor at either one or two specific frequencies, or across a broad band of carrier frequencies. Frequently, the coupling capacitor and line-tuning unit form a highpass filter.
Is there a free online tuner for electric guitar?
Online Guitar Tuner. Hello! You have found the fastest and right way to tune your guitar ?. The tuning will be done using the free online guitar tuner, working through a microphone on your device. This tuner is suitable for acoustic and for electric guitar.