PowerPoint Presentation: ELECTRICAL POWER ……….TRANSMISSION……….
CONTENTS: CONTENTS HISTORY BULK POWER TRANSMISSION OVERHEAD TRANSMISSION HIGH VOLTAGE DIRECT CURRENT LIMITATIONS HEALTH CONTROL
HISTORY: HISTORY INVENTION OF GRID STATIONS RESTRICTED TO DISTANCE
BULK POWER TRANSMISSION: BULK POWER TRANSMISSION TRANSMISSION NETWORK POWER LINES CABLES CIRCUIT BREAKERS SWITCHES & TRANSFORMERS
OVERHEAD TRANSMISSION: OVERHEAD TRANSMISSION An overhead power line is an electric power transmission line suspended by towers or utility pole s .
OVERHEAD TRANSMISSION: OVERHEAD TRANSMISSION
HVDC: HVDC A high-voltage, direct current (HVDC) electric power transmission system uses direct current for the bulk transmission of electrical power. For long-distance transmission, HVDC systems may be less expensive and suffer lower electrical losses.
PowerPoint Presentation: Long distance HVDC lines carrying hydroelectricity from Canada's Nelson river to this station
LIMITATIONS: LIMITATIONS OVER HEATING
Health concerns: Health concerns Some large studies, including a large United States study, have failed to find any link between living near power lines and developing any sickness or diseases such as cancer.