High-voltage transmission ppt-People's Education Edition elective (1-1) courseware

PEP electives (1-1) "High Voltage Transmission" ppt conductors have resistance. When the current flows, the conductors heat up due to the thermal effect of the current, and part of the electrical energy is converted into heat energy and lost. 1. Any transmission line has resistance and there is power loss. If the transmission current is I and the transmission line resistance is R, the power loss on the transmission line is:

Men's sunglasses are cool. They design different frame shapes according to different faces of men. Each frame shows different personality charms. Highlight individuality, make the wearer light and comfortable, fashionable and steady. It is also a kind of glasses that can block the sun's light in the strong light protection of the eyes of the products can block ultraviolet and infrared, while the color of the external environment does not change, only light intensity changes, play the protection of the eye.
  

Sunglasses For Men

Sunglasses For Men,Men In Sunglasses,Man Wearing Sunglasses,Popular Mens Sunglasses

China Guangdong Shenzhen city Omelle glasses Co., Ltd. , https://www.omelleoptical.com