Why is a three-phase alternating current used often for electric
... In a three-phase three-wire type distribution system electric current is sent with three wires from a three-phase electric power source. Electric power transmission lines and high voltage distribution systems adopted it, because of that effectiveness of electric power transmission per a wire. Event ...
... In a three-phase three-wire type distribution system electric current is sent with three wires from a three-phase electric power source. Electric power transmission lines and high voltage distribution systems adopted it, because of that effectiveness of electric power transmission per a wire. Event ...
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... circuits featuring traction inverter made with all-silicon carbide (SiC), which were installed in a 1000 series urban train operated by Odakyu Electric Railway Co., Ltd. in Japan, have been verified to achieve an approximate 40-percent savings in power consumption compared to a train using conventio ...
... circuits featuring traction inverter made with all-silicon carbide (SiC), which were installed in a 1000 series urban train operated by Odakyu Electric Railway Co., Ltd. in Japan, have been verified to achieve an approximate 40-percent savings in power consumption compared to a train using conventio ...
PDF Version(75KB)
... TOKYO, April 30, 2014 – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it has received an order for its railcar traction inverter with all-silicon carbide (SiC) power modules made with SiC transistors and SiC diodes, which was placed by Odakyu Electric Railway Co., Ltd. This is t ...
... TOKYO, April 30, 2014 – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it has received an order for its railcar traction inverter with all-silicon carbide (SiC) power modules made with SiC transistors and SiC diodes, which was placed by Odakyu Electric Railway Co., Ltd. This is t ...
ELECTRIC TRACTION
... withstanding large temporary loads. Speed control should be easy. Pollution free. Low initial and maintenance cost. The locomotive should be self contain and able to run on any route. ...
... withstanding large temporary loads. Speed control should be easy. Pollution free. Low initial and maintenance cost. The locomotive should be self contain and able to run on any route. ...
FAILURE TRENDS OF THE MAIN
... category comes a diesel engine electric drive. The former types of vehicle are used on ac or dc power from the overhead line. ...
... category comes a diesel engine electric drive. The former types of vehicle are used on ac or dc power from the overhead line. ...
Electrical Traction Sytsem
... three phase inverter, whose phase voltage and frequency can be manipulated widely. 3. The three phase induction motors are simple and robust in construction and have a high operating efficiency and properly of automatic regenerative braking with requiring additional equipment. www.igvfsonlineedu.in ...
... three phase inverter, whose phase voltage and frequency can be manipulated widely. 3. The three phase induction motors are simple and robust in construction and have a high operating efficiency and properly of automatic regenerative braking with requiring additional equipment. www.igvfsonlineedu.in ...
the guideline to electric propulsion
... Electric propulsion for ships is today a natural choice for a long list of ship types, for different reasons, such as fuel savings, emission reductions, ECA regulations, redundancy, noise, vibration, maintenance, space utilisation, the use of LNG –electric propulsion etc. These systems can be design ...
... Electric propulsion for ships is today a natural choice for a long list of ship types, for different reasons, such as fuel savings, emission reductions, ECA regulations, redundancy, noise, vibration, maintenance, space utilisation, the use of LNG –electric propulsion etc. These systems can be design ...
Some Sustainability Aspects of Energy Conversion in Urban Electric
... Vehicle regulation speed is determined examining the static converter (VVVF) and electric machine as an assembly [21]. The traction motor speed regulation is based on stator voltage and frequency variation, so that to achieve high exergy efficiency, the first requirement of the train control system ...
... Vehicle regulation speed is determined examining the static converter (VVVF) and electric machine as an assembly [21]. The traction motor speed regulation is based on stator voltage and frequency variation, so that to achieve high exergy efficiency, the first requirement of the train control system ...
AG-AMIII-01.423-05.2 Electric Motors
... 4@ than the 2@ X 4@? Ask the students to name some reasons for the different. There should be a noticeable difference because of the difference the amount of load put on the motor when cutting the two different thickness of wood. Lead students into discussion on the different factors to consider whe ...
... 4@ than the 2@ X 4@? Ask the students to name some reasons for the different. There should be a noticeable difference because of the difference the amount of load put on the motor when cutting the two different thickness of wood. Lead students into discussion on the different factors to consider whe ...
ELECTRIC DRIVES
... • DC motors - permanent magnet – wound field • AC motors – induction, synchronous (IPMSM, SMPSM), brushless DC • Applications, cost, environment • Natural speed-torque characteristic is not compatible with load requirements Power sources • DC – batteries, fuel cell, photovoltaic - unregulated • AC – ...
... • DC motors - permanent magnet – wound field • AC motors – induction, synchronous (IPMSM, SMPSM), brushless DC • Applications, cost, environment • Natural speed-torque characteristic is not compatible with load requirements Power sources • DC – batteries, fuel cell, photovoltaic - unregulated • AC – ...
Deterring Bears with Electrified Fencing
... wire is held in place. Wire can be held in place on fiberglass posts with metal clips, or holes can be drilled through fiberglass posts and electrified wire can be fed directly through each post. In groundreturn fence designs, the ground (-) wires may be directly attached to any type of post as thes ...
... wire is held in place. Wire can be held in place on fiberglass posts with metal clips, or holes can be drilled through fiberglass posts and electrified wire can be fed directly through each post. In groundreturn fence designs, the ground (-) wires may be directly attached to any type of post as thes ...
Electric locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or on-board energy storage such as a battery or fuel cell. Electric locomotives with on-board fuelled prime movers, such as diesel engines or gas turbines, are classed as diesel-electric or gas turbine-electric locomotives because the electric generator/motor combination serves only as a power transmission system. Electricity is used to eliminate smoke and take advantage of the high efficiency of electric motors, but the cost of electrification means that usually only heavily used lines can be electrified.
