This document discusses power line carrier (PLC) systems for transmitting data and signals over power lines. It covers PLC components like line traps, coupling capacitors, and coupling devices. It describes how to choose appropriate line traps based on system parameters. It also provides details on band-pass and high-pass coupling filters used in PLC systems and their tuning characteristics. Diagrams show examples of single phase and three phase PLC coupling configurations.
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.
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.
PLCC: A promising futuristic technology!!!.. still in India we do not use it due to many reasons.... because PLCC, Power Line Carrier Communication, is an approach to utilize the existing power lines for the transmission of information.
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).
PLCC: A promising futuristic technology!!!.. still in India we do not use it due to many reasons.... because PLCC, Power Line Carrier Communication, is an approach to utilize the existing power lines for the transmission of information.
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).
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ABB Contactors - 4 Pole Contactors ABB AF09 AF09Z (AC DC) Contactors
ABB Extended Product Type:
ABB AF09-40-00-11
ABB Product ID:
1SBL137201R1100
EAN: 3471523115019
ABB Catalogue Description:
ABB 4 Pole Contactors : AF09-40-00-11 24-60V50/60HZ 20-60VDC Contactor
ABB AF09 4-pole contactors are used for controlling power circuits up to 690 V AC and 440 V DC. ABB AF09 contactors are mainly used for controlling non-inductive or slightly inductive loads (i.e. resistance furnaces...). ABB AF09 contactors include an electronic coil interface accepting a wide control voltage Uc min. ... Uc max. Only four coils cover control voltages between 24...500 V 50/60 Hz or 20...500 V DC. ABB AF contactors can manage large control voltage variations. One coil can be used for different control voltages used worldwide without any coil change. ABB AF contactors have built-in surge protection and do not require additional surge suppressors. The ABB AF... series 4-pole contactors are of the block type design. Main poles and auxiliary contact blocks: 4 N.O. main poles, front and side-mounted add-on auxiliary contact blocks (mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1. N.C. mirror contacts compliant with Annex F of IEC 60947-4-1) - Control circuit: AC or DC operated - Accessories: a wide range of accessories is available. Note: - AF..-..-..-11 not suitable for a direct control by PLC-output. - ABB AF..-..-..-11 type available in some countries: please consult Thorne & Derrick t 00 44 191 4901547
IC Component(ic-component.com) shares the AD654 datasheet for free. If you need to purchase stock AD654 series chips, please contact hello@ic-component.com
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Model Attribute Check Company Auto PropertyCeline George
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Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
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Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks