The high pressure sodium lamp is a high energy outdoor light source that belongs to the high intensity discharge lamp family. It comes in different shapes and requires a ballast to start it. The high pressure sodium lamp is a source of... more
The high pressure sodium lamp is a high
energy outdoor light source that belongs to the high
intensity discharge lamp family. It comes in different
shapes and requires a ballast to start it. The high pressure
sodium lamp is a source of interference to the power line
communications channel as it injects noise when connected
to the 220V mains. This paper investigates the influence of
the high pressure sodium lamp on the narrowband and
broadband power line communications channel. It is
shown that the frequency band: 3kHz – 150kHz is not
highly infected whereas in the band: 150kHz – 30MHz,
PLC signals compete with Electromagnetic Compatibility
(EMC) levels.
energy outdoor light source that belongs to the high
intensity discharge lamp family. It comes in different
shapes and requires a ballast to start it. The high pressure
sodium lamp is a source of interference to the power line
communications channel as it injects noise when connected
to the 220V mains. This paper investigates the influence of
the high pressure sodium lamp on the narrowband and
broadband power line communications channel. It is
shown that the frequency band: 3kHz – 150kHz is not
highly infected whereas in the band: 150kHz – 30MHz,
PLC signals compete with Electromagnetic Compatibility
(EMC) levels.
Research Interests:
Research Interests:
The fluorescent lamps or fluorescent tubes are low pressure mercury-vapor gas-discharge lamps that use fluorescence to produce visible light. These lamps inject noise into the power-line communications channel. This can have a detrimental... more
The fluorescent lamps or fluorescent tubes are low pressure mercury-vapor gas-discharge lamps that use fluorescence to produce visible light. These lamps inject noise into the power-line communications channel. This can have a detrimental effect on the power-line communication system. In this paper we investigate the effects when the fluorescent lamps with electronic ballasts are seen as noise sources on the powerline channel. It is shown that in the CENELEC band: (3kHz-150kHz) the interference level from fluorescent lamps is significantly below the allowed maximum PLC signal levels. In the band 150kHz-30MHz however, PLC signals compete with Electromagnetic Compatibility (EMC) levels. The operational method of the electronic ballast inside the fluorescent lamp is explained.
Research Interests:
Research Interests:
The power-line communications channel (PLC) is one of the harsh and challenging channels due to heavy load and noise impairments. Sending and/or receiving of data bits over the PLC channel can be easily affected; therefore, several... more
The power-line communications channel (PLC) is one of the harsh and challenging channels due to heavy load and noise impairments. Sending and/or receiving of data bits over the PLC channel can be easily affected; therefore, several investigations have been conducted to illustrate interference effects over PLC where intermittent noise plays a major role in this type of communications channel. The in-building network is a non-stable system due to the heavy traffic in the wiring system; therefore the power-line communication system gets affected by the internal and external communications factors. In this paper we apply direct connections to the PLC networks in a “unique” method when the 220V mains are on and when off. Indirect connections are also conducted using different types of equipment and connections and results are presented.