This document summarizes the key learning from a training on Power Line Carrier Communication (PLCC) systems. It discusses the components of a PLCC system including line matching units, coupling capacitors, earth switches and coaxial cables. It describes how PLCC systems transmit speech, data and protection signals over high voltage power lines. It also outlines the maintenance and fault tracking process for PLCC systems. The document highlights advantages like low cost communication over power lines and limitations around noise and signal attenuation.
Power Line Carrier Communication (PLCC) is a communication method that uses electrical wiring to simultaneously carry both data and electric power. This makes power line communication one of the best means for networking. It is also known as power line carrier, power line digital subscriber line (PDSL), mains communication, power line telecommunications, or power line networking (PLN).
Power Line Carrier Communication (PLCC) is a communication method that uses electrical wiring to simultaneously carry both data and electric power. This makes power line communication one of the best means for networking. It is also known as power line carrier, power line digital subscriber line (PDSL), mains communication, power line telecommunications, or power line networking (PLN).
in this presentation to get the knowledge about the wireless power transmission in the power system. from this presentation easy to learn about the "How to power transfer without using the wire?" . To give the advantages , Disadvantages and the applications of the Wireless Power Transmission System.
PLCC system uses the same High Voltage transmission line connecting
two sub-stations for telecommunication purpose too.
PLCC is used in all power utilities as a primary communication service to transmit speech, telemetry and protection tripping commands. This is economic and reliable for inter grid message transfer as well as low bit rate RTU signals.
The voice/data are mixed with radio frequency carrier (40-500kHz), amplified to a level of 10-80W RF power and injected in to high voltage power line using a suitable coupling capacitor. The power line as a rigid long conductor parallel to ground, guides the carrier waves to travel along the transmission line. Point to point communication takes place between two SSB transceivers at both ends.
Wireless power transmission deepak kumawatdeepak kumawat
final year seminar report on wireless power transmission system. contents including history of wireless power transmission , vision of nicolas tesla , long range transmission , short range transmission , witricity , microwave power transmission, laser power transmission . consisting a new technology working on solar power transmission running process.
One of the major issue in power system is the losses occurs during the transmission and distribution of electrical power. As the demand increases day by day, the power generation increases and the power loss is also increased. The major amount of power loss occurs during transmission and distribution. The percentage of loss of power during transmission and distribution is approximated as 26%. The main reason for power loss during transmission and distribution is the resistance of wires used for grid. The efficiency of power transmission can be improved to certain level by using high strength composite overhead conductors and underground cables that use high temperature super conductor. But, the transmission is still inefficient. According to the World Resources Institute (WRI), India’s electricity grid has the highest transmission and distribution losses in the world – a whopping 27%. Numbers published by various Indian government agencies put that number at 30%,40% and greater than 40%. This is attributed to technical losses (grid’s inefficiencies) and theft. Any problem can be solved by state of the art technology. The above discussed problem can be solvedby choose an alternative option for power transmission which could provide much higher efficiency, low transmission cost and avoid power theft. Microwave Power Transmission is one of the promising technologies and may be the righteous alternative for efficient power transmission.
Report on power line career communication by ramanand sagarRamanand Sagar
Dear friends,
This report is written by me after long research of one month after completing my summer training from PLCC section at CHAMBAL POWER HOUSE, Jaipur,INDIA
It woul be benificial to you who want knowledge on Power Line Career Communication.
Thankyou
Your Sincerly
RAMANAND SAGAR
email- silverramanand@gmail.com
in this presentation to get the knowledge about the wireless power transmission in the power system. from this presentation easy to learn about the "How to power transfer without using the wire?" . To give the advantages , Disadvantages and the applications of the Wireless Power Transmission System.
PLCC system uses the same High Voltage transmission line connecting
two sub-stations for telecommunication purpose too.
PLCC is used in all power utilities as a primary communication service to transmit speech, telemetry and protection tripping commands. This is economic and reliable for inter grid message transfer as well as low bit rate RTU signals.
The voice/data are mixed with radio frequency carrier (40-500kHz), amplified to a level of 10-80W RF power and injected in to high voltage power line using a suitable coupling capacitor. The power line as a rigid long conductor parallel to ground, guides the carrier waves to travel along the transmission line. Point to point communication takes place between two SSB transceivers at both ends.
Wireless power transmission deepak kumawatdeepak kumawat
final year seminar report on wireless power transmission system. contents including history of wireless power transmission , vision of nicolas tesla , long range transmission , short range transmission , witricity , microwave power transmission, laser power transmission . consisting a new technology working on solar power transmission running process.
One of the major issue in power system is the losses occurs during the transmission and distribution of electrical power. As the demand increases day by day, the power generation increases and the power loss is also increased. The major amount of power loss occurs during transmission and distribution. The percentage of loss of power during transmission and distribution is approximated as 26%. The main reason for power loss during transmission and distribution is the resistance of wires used for grid. The efficiency of power transmission can be improved to certain level by using high strength composite overhead conductors and underground cables that use high temperature super conductor. But, the transmission is still inefficient. According to the World Resources Institute (WRI), India’s electricity grid has the highest transmission and distribution losses in the world – a whopping 27%. Numbers published by various Indian government agencies put that number at 30%,40% and greater than 40%. This is attributed to technical losses (grid’s inefficiencies) and theft. Any problem can be solved by state of the art technology. The above discussed problem can be solvedby choose an alternative option for power transmission which could provide much higher efficiency, low transmission cost and avoid power theft. Microwave Power Transmission is one of the promising technologies and may be the righteous alternative for efficient power transmission.
Report on power line career communication by ramanand sagarRamanand Sagar
Dear friends,
This report is written by me after long research of one month after completing my summer training from PLCC section at CHAMBAL POWER HOUSE, Jaipur,INDIA
It woul be benificial to you who want knowledge on Power Line Career Communication.
Thankyou
Your Sincerly
RAMANAND SAGAR
email- silverramanand@gmail.com
Presentation on power line career communication by ramanand sagarRamanand Sagar
Dear friends,
This ppt is created by me on "power line career communication".
It would certainly helpful to you.
your sincerly
RAMANAND SAGR
emai- silverramanand@gmail.com
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3.
Name Of Industry : Rajasthan Rajya Vidyut Prasaran
Nigam Limited
Location: 132KV CHAMBAL GSS, Jaipur
Reporting Officer: R.P. MEENA
Duration of training : 1th June to 15th July
Department of training :Electronics & Communication
3
4.
RRVPNL started working from july1957
Sh.Shailendra Agarwal,IAS is the Chairman & MD of
RRVPNL
RVPN Provides the pathway for power within whole
of Rajasthan
This is the body of big organization act , like
public limited companies
It works as electric Power distribution
regulator within the state.
4
5. INTRODUCTION
• PLCC is the method of transmitting information
using power network.
• Its equipment are used for point-to-point
communication over high voltage power lines
• Its equipments are used send/receive
speech/data/teleprotection signals.
• It’s the most economical and reliable method
of communication for medium or long distance.
5
6. • The telephone communication system cannot
be directly connected to the high voltage
lines suitably designed coupling devices.
• These usually consist of high voltage
capacitor with polaritical devices used in
conjunction with suitable line matching unit
(LMU) for matching the impedance of line to
that of the coaxial cable connecting the unit
to the PLC transmit-receive equipment.
6
7. The signal that can be transmitted over the PLCC
include
Speech signal (300-2000Hz )
Data signal (2000-3000Hz)
7
11.
It is Control Voltage transformer/ Coupling capacitor.
This is used for blocking the high voltage entering
the PLCC Equipment.
to
Earth Switch
This is used at the time of maintenance of LMU.
11
12. • Used to protect the system from the damaging
effect of lightening.
• It works as an insulator between light and the
power line.
Co axial Cable
This is used for inter connection between
PLCC & L.M.U for carrying the high frequency signal.
12
13. The out-put of PLCC is connected to the matching unit
before to the power lines to achieve the proper impedance
matching in between PLCC Equipments and power line.
13
14. PLC signal
Blocking
• Consists of a number choke
coils connected in series.
HV Line
• It prevents carrier current from
entering to the power equipment.
Power
energy
PLC
Signal
Substation
• Offer negligible impedance to
power frequency & high
impedance to carrier frequency
14
16. • The power frequency and radio frequency currents
are sorted by this arrangement
• Carrier currents are prevented to enter station bus by
wave trap & power frequency current is blocked by
coupling capacitor, from the PLC equipment.
• Hence we get power current at the bus & carrier
current at PLC equipment.
16
17. • PLCC work on rectified AC or main supply, when
supply goes off, we make use of a device for proper
functioning of PLCC called battery charger.
• This is the device that provide supply to the PLCC
equipment for uninterrupted working.
• It provide DC to the panel by battery.
17
18.
FAULT ANALYSIS
In fault analysis the faulty devices are checked in this serial or
manner:1.
2.
3.
4.
Telephone or tale operation signal
Cabling low frequency circuit or DC power supply
PLC equipment
HF transmission path
18
19. 1.
The control circuit boards should be inserted far firmly.
2.
The charger should be switch off once in every month.
3.
The battery terminal should be connected first and the
AC input after that.
4.
All mounting bolts should be checked before
energizing.
19
20. No separate wires are needed for
communication purpose.
Both communication and power transfer
can be possible on same circuit.
Power lines provides the shortest route
between the power station.
Increased reliability.
Lower attenuation over long distance.
Implementation cost is reduced.
20
21. Reflection are produced on spur lines connected to
high voltage line. This increased attenuation and
create other problem.
High voltage lines have transformer connections,
which attenuate carrier currents.
Noise introduced by power lines is far more than in
case of telephone lines.
21
22.
PLCC is mainly used for telecommunication, tele-protection and
tele-monitoring between electrical substations through power
lines.
In a PLCC system the communication is established through the
power line.
The carrier frequency range is allocated to include the audio
signal, protection and the pilot frequency.
22
23. The Training was based on communication over
existing power line
23
24. Rajasthan Rajya Vidyut Utpadan Nigam Ltd.
(http://www.rvunl.com )
Jodhpur dicom vidyut vitran nigam limited
(http://www.jdvvnl.com )
Department of Energy Government of Rajasthan
(http://www.rajenergy.com )
Jaipur vidhut vitran nigam limited
(http://www.jaipurdiscom.in )
Rajasthan state load dispatch center
(http://www.rajsldc.com )
24