evaluation of simple fault location on a mv feeder with dg
... [1]-[3]. Lethonen et. al. [4] presents a method for estimating the distance to the fault by comparing the measured and the calculated fault current. In addition, information from fault locators in the branching points and knowledge of fault frequencies of different line sections are utilized. There ...
... [1]-[3]. Lethonen et. al. [4] presents a method for estimating the distance to the fault by comparing the measured and the calculated fault current. In addition, information from fault locators in the branching points and knowledge of fault frequencies of different line sections are utilized. There ...
New Breed of Network Fault-Tolerant Voltage-Source
... require dc circuit breakers that can tolerate high let-through current that may flow in the dc side during the first few cycles after the fault, with high current breaking capacity and fast interruption time. Recent HVDC converter topologies with no common dc link capacitors, such as the modular mul ...
... require dc circuit breakers that can tolerate high let-through current that may flow in the dc side during the first few cycles after the fault, with high current breaking capacity and fast interruption time. Recent HVDC converter topologies with no common dc link capacitors, such as the modular mul ...
2 conditions for connection to the transmission system
... 276/2001 Coll. on regulation of network industries and on alteration and amendment to certain laws, as altered and amended, as well as in terms of the provisions of Act No. 70/1998 Coll. on power engineering and on alteration to Act No. 455/1991 Coll. on trade business (Trade Act), as altered and am ...
... 276/2001 Coll. on regulation of network industries and on alteration and amendment to certain laws, as altered and amended, as well as in terms of the provisions of Act No. 70/1998 Coll. on power engineering and on alteration to Act No. 455/1991 Coll. on trade business (Trade Act), as altered and am ...
Low Power CMOS Rectifier Design for RFID Applications
... Unwanted parasitic bipolar transistors can cause latch-up when MOS rectifiers are implemented in CMOS processes [5]. However, our rectifiers do not suffer from this problem. This is mainly because our operating frequencies are greater than the of these parasitic devices. In addition, at our operatin ...
... Unwanted parasitic bipolar transistors can cause latch-up when MOS rectifiers are implemented in CMOS processes [5]. However, our rectifiers do not suffer from this problem. This is mainly because our operating frequencies are greater than the of these parasitic devices. In addition, at our operatin ...
SIMOTICS Low-voltage motors - Siemens
... The history of today’s most comprehensive range of motors worldwide started about 150 years ago in 1866 as Werner von Siemens developed the dynamo-electric principle. This principle allowed powerful electric motors to be designed and built, therefore creating the basis for their widespread use in in ...
... The history of today’s most comprehensive range of motors worldwide started about 150 years ago in 1866 as Werner von Siemens developed the dynamo-electric principle. This principle allowed powerful electric motors to be designed and built, therefore creating the basis for their widespread use in in ...
Evaluation of a Radial Flux Air-cored Permanent Magnet Machine
... Due to finite oil resources and its political and economical impact, a renewed interest in energy independence has compelled industry and government to pursue electric vehicle designs. The current worldwide research that is being conducted on drivetrain topologies for EVs, focus mainly on direct in-w ...
... Due to finite oil resources and its political and economical impact, a renewed interest in energy independence has compelled industry and government to pursue electric vehicle designs. The current worldwide research that is being conducted on drivetrain topologies for EVs, focus mainly on direct in-w ...
Active Electrodes
... • In the monopolar mode, the current flows from a small active electrode into the surgical site, spreads through the body, and returns to a large dispersive electrode on the skin. • The high current density in the vicinity of the active electrode achieves tissue cutting or coagulation, whereas the ...
... • In the monopolar mode, the current flows from a small active electrode into the surgical site, spreads through the body, and returns to a large dispersive electrode on the skin. • The high current density in the vicinity of the active electrode achieves tissue cutting or coagulation, whereas the ...
VWR® Mini Gel
... 3. After the samples have been loaded into the gel, place the lid over the unit so that the lid covers align with the tank. Set the lid straight down so that the lid rests squarely on the tank. 4. Plug the Power Supply into a wall outlet. G. Setting the Power supply 1. Ensure an approved power cord ...
... 3. After the samples have been loaded into the gel, place the lid over the unit so that the lid covers align with the tank. Set the lid straight down so that the lid rests squarely on the tank. 4. Plug the Power Supply into a wall outlet. G. Setting the Power supply 1. Ensure an approved power cord ...
Maxim Integrated MAX14870 DC motor driver datasheet
... The MAX14870/MAX14872 motor drivers provide a small, low-power and simple solution for driving and controlling brushed DC motors and relays with voltages between 4.5V and 36V. Very low driver on-resistance reduces power dissipation. These drivers feature a charge-pump-less design for reduced externa ...
... The MAX14870/MAX14872 motor drivers provide a small, low-power and simple solution for driving and controlling brushed DC motors and relays with voltages between 4.5V and 36V. Very low driver on-resistance reduces power dissipation. These drivers feature a charge-pump-less design for reduced externa ...
Energy Efficiency Best Practice Guide Lighting
... this may reduce lamp lifetime slightly, but often this is more than compensated for by the cost savings that result from increased energy efficiency. • While frequent switching may reduce a lamp’s operational hours, it almost invariably extends the lamp’s calendar lifetime, saving energy and money ...
... this may reduce lamp lifetime slightly, but often this is more than compensated for by the cost savings that result from increased energy efficiency. • While frequent switching may reduce a lamp’s operational hours, it almost invariably extends the lamp’s calendar lifetime, saving energy and money ...
PLUS+1 Inverter Family Technical Information Rev AA
... PLUS+1 Inverter are a unique family of inverters as well as machine controllers in one enclosure. They are designed to control AC induction motors used in a variety of battery powered material handling equipment and machinery to provide propel, steering and work functionality. The unique requirement ...
... PLUS+1 Inverter are a unique family of inverters as well as machine controllers in one enclosure. They are designed to control AC induction motors used in a variety of battery powered material handling equipment and machinery to provide propel, steering and work functionality. The unique requirement ...
TPS65283/-1 4.5- to 18-V Input Voltage, Maximum 3.5-/2.5
... The TPS65283, TPS65283-1 in thermally-enhanced 4-mm × 4-mm VQFN package is a full featured 4.5- to 18-V Vin, 3.5-A/2.5-A output current synchronous step down DC-DC converter, which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. The device a ...
... The TPS65283, TPS65283-1 in thermally-enhanced 4-mm × 4-mm VQFN package is a full featured 4.5- to 18-V Vin, 3.5-A/2.5-A output current synchronous step down DC-DC converter, which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. The device a ...
Notification Appliance Circuit Module
... point. The point must use a 1 kΩ end-of-line (EOL) resistor. ...
... point. The point must use a 1 kΩ end-of-line (EOL) resistor. ...
xbis - International Journal of Engineering and Computer Science
... Amplifier PCBs to avoid any glitches caused by motors, as boards are sensitive. Other switched mode power supply is used for motor drive circuitry on main control PCB and illuminate lights at the end of the tunnel. Main power supply 220V a.c. input, +12V and +5V DC output X-ray sensor amplifier pow ...
... Amplifier PCBs to avoid any glitches caused by motors, as boards are sensitive. Other switched mode power supply is used for motor drive circuitry on main control PCB and illuminate lights at the end of the tunnel. Main power supply 220V a.c. input, +12V and +5V DC output X-ray sensor amplifier pow ...
Optimal Voltage Regulators Placement in Radial Distribution System
... The voltage drop along radial distribution systems has been a crucial operating problem. Utilities look for solutions for this problem, from both technical and economical standpoints. Various devices such as capacitors and voltage regulators (VR’s) can be installed to reduce the voltage drop. In thi ...
... The voltage drop along radial distribution systems has been a crucial operating problem. Utilities look for solutions for this problem, from both technical and economical standpoints. Various devices such as capacitors and voltage regulators (VR’s) can be installed to reduce the voltage drop. In thi ...
Product Brochure
... ASCO Power Transfer Switches are the standard of the industry. High speed transfer of loads between alternate sources of power, regardless of ampacity size, is achieved by a reliable, field proven solenoid operating mechanism. When combined with a programmable microprocessor controller with keypad a ...
... ASCO Power Transfer Switches are the standard of the industry. High speed transfer of loads between alternate sources of power, regardless of ampacity size, is achieved by a reliable, field proven solenoid operating mechanism. When combined with a programmable microprocessor controller with keypad a ...
Electrification
Electrification is the process of powering by electricity and is usually associated with changing over from another power source. The broad meaning of the term, such as in the history of technology and economic history, usually applies to a region or national economy. Broadly speaking, electrification was the build out of the electrical generating and distribution systems which occurred in Britain, the United States, and other countries from the mid-1880s until around 1950 and is in progress in rural areas in some developing countries. This included the change over from line shaft and belt drive using steam engines and water power to electric motors.The electrification of particular sectors of the economy is called by terms such as factory electrification, household electrification, rural electrification or railway electrification. It may also apply to changing industrial processes such as smelting, melting, separating or refining from coal or coke heating or chemical processes to some type of electric process such as electric arc furnace, electric induction or resistance heating or electrolysis or electrolytic separating.Electrification was called ""the greatest engineering achievement of the 20th Century"" by the National Academy of Engineering.