Electronic Ballasts - Lighting Research Center
... operate lamps at 20–60 kHz. These electronic ballasts have approximately half the power loss of magnetic ballasts. Lamp efficacy also increases (by approximately 10–15% compared to 60-Hz operation) when the lamp operates at a frequency above 20 kHz. See Figure 3 and the sidebar “Choice of Frequency ...
... operate lamps at 20–60 kHz. These electronic ballasts have approximately half the power loss of magnetic ballasts. Lamp efficacy also increases (by approximately 10–15% compared to 60-Hz operation) when the lamp operates at a frequency above 20 kHz. See Figure 3 and the sidebar “Choice of Frequency ...
DNV-OS-D201: Electrical Installations
... This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document, and is believed to reflect the best of contemporary technology. The use of this document by others than DNV is at the user's sole risk. DNV does not accept an ...
... This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document, and is believed to reflect the best of contemporary technology. The use of this document by others than DNV is at the user's sole risk. DNV does not accept an ...
Notes on the Troubleshooting and Repair of Microwave Ovens Page
... You will be able to make an informed decision as to whether a new oven is the better alternative. Whether these issues have been resolved or just brushed aside is not totally clear.repair. Rather.electronics. My only reservation with respect to tech tips databases in general . he will answer questio ...
... You will be able to make an informed decision as to whether a new oven is the better alternative. Whether these issues have been resolved or just brushed aside is not totally clear.repair. Rather.electronics. My only reservation with respect to tech tips databases in general . he will answer questio ...
Power Supply Switch - The R-390A Frequently Asked Questions Page
... instrument, they initially have a high resistance, which limits the inrush current through the instrument. Upon application of power, the current through the thermistor causes self-heating, which lowers the device’s resistance. At some point the resistance stabilizes to a value that depends on the e ...
... instrument, they initially have a high resistance, which limits the inrush current through the instrument. Upon application of power, the current through the thermistor causes self-heating, which lowers the device’s resistance. At some point the resistance stabilizes to a value that depends on the e ...
Alstom LGPG111 Service Manual
... might occur. The exact forms of protection that are required are dependent on the type, design, size and purpose of the generating plant and on the form of power system which is to be supplied. Traditional generator protection schemes have been made up of various discrete protective relays, in conju ...
... might occur. The exact forms of protection that are required are dependent on the type, design, size and purpose of the generating plant and on the form of power system which is to be supplied. Traditional generator protection schemes have been made up of various discrete protective relays, in conju ...
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-
... Each operator of a transmission facility must monitor the status of all transmission reactive power resources, automatic voltage regulators, voltage regulating systems and power system stabilizers within its service territory. R8 The ISO, when notified by the operator of a generating unit of the los ...
... Each operator of a transmission facility must monitor the status of all transmission reactive power resources, automatic voltage regulators, voltage regulating systems and power system stabilizers within its service territory. R8 The ISO, when notified by the operator of a generating unit of the los ...
OPERATOR’S MANUAL BOP-MG 1KW HIGH POWER BIPOLAR POWER SUPPLY MODEL
... 5. This power supply has secondary output circuits that are considered hazardous, and which exceed 100V d-c, able to deliver current greater than 10A d-c. 6. The output wiring terminals of this power supply have not been evaluated for field wiring and, therefore, must be properly configured by the e ...
... 5. This power supply has secondary output circuits that are considered hazardous, and which exceed 100V d-c, able to deliver current greater than 10A d-c. 6. The output wiring terminals of this power supply have not been evaluated for field wiring and, therefore, must be properly configured by the e ...
POWER SYSTEM FAULTS
... will be stopped (causing loss of industrial production) and then will have to be restarted. ...
... will be stopped (causing loss of industrial production) and then will have to be restarted. ...
Liebert eXM User Manual–50-250kVA, 480V, 50/60Hz ®
... Single UPS block diagram—Dual input, single source configuration, without bypass cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single UPS block diagram—dual input, single source configuration wi ...
... Single UPS block diagram—Dual input, single source configuration, without bypass cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single UPS block diagram—dual input, single source configuration wi ...
Volume 5 Tab 5
... continuous currents from 1 to 150 A and does not require any supply voltage, as the power required is induced from the monitored conductor. The output is a non-polarity-sensitive solidstate contact for switching AC and DC circuits up to 240 Vac/Vdc. This switch also includes an LED indicating two st ...
... continuous currents from 1 to 150 A and does not require any supply voltage, as the power required is induced from the monitored conductor. The output is a non-polarity-sensitive solidstate contact for switching AC and DC circuits up to 240 Vac/Vdc. This switch also includes an LED indicating two st ...
Technology Comparison for Large Last-Level Caches
... presents several approaches for refreshing eDRAMbased caches, including periodic refresh, line-level refresh based on time stamps, and no-refresh. For instance, Liang et al. [30] showed that by adopting the line-level refresh or the no-refresh approaches with intelligent cache-replacement policies, ...
... presents several approaches for refreshing eDRAMbased caches, including periodic refresh, line-level refresh based on time stamps, and no-refresh. For instance, Liang et al. [30] showed that by adopting the line-level refresh or the no-refresh approaches with intelligent cache-replacement policies, ...
Intel® Xeon® Processor 7400 Series Datasheet
... The Intel® Xeon® Processor 7400 Series may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest spec ...
... The Intel® Xeon® Processor 7400 Series may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest spec ...
Relays and Meters - GE Industrial Solutions
... The Multilin line of protection and control products are based on industry leading technologies essential for the reliable operation of mission-critical applications including generation, transmission, distribution, metering, motors, and communications. Multilin protection relays and systems are com ...
... The Multilin line of protection and control products are based on industry leading technologies essential for the reliable operation of mission-critical applications including generation, transmission, distribution, metering, motors, and communications. Multilin protection relays and systems are com ...
OPERATOR’S MANUAL BOP-GL 1KW HIGH POWER BIPOLAR POWER SUPPLY MODEL
... 5. This power supply has secondary output circuits that are considered hazardous, and which exceed 100V d-c, able to deliver current greater than 10A d-c. 6. The output wiring terminals of this power supply have not been evaluated for field wiring and, therefore, must be properly configured by the e ...
... 5. This power supply has secondary output circuits that are considered hazardous, and which exceed 100V d-c, able to deliver current greater than 10A d-c. 6. The output wiring terminals of this power supply have not been evaluated for field wiring and, therefore, must be properly configured by the e ...
Dual-Core Intel® Xeon® Processor 7100 Series
... Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.” Intel reserves these for future definition and shall have no responsibility whats ...
... Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.” Intel reserves these for future definition and shall have no responsibility whats ...
PL 3120®/PL 3150®/PL 3170
... are trademarks of Echelon Corporation registered in the United States and other countries. 3170 is a trademark of Echelon Corporation. Other brand and product names are trademarks or registered trademarks of their respective holders. Smart Transceivers, Neuron Chips, and other OEM Products were not ...
... are trademarks of Echelon Corporation registered in the United States and other countries. 3170 is a trademark of Echelon Corporation. Other brand and product names are trademarks or registered trademarks of their respective holders. Smart Transceivers, Neuron Chips, and other OEM Products were not ...
Electric power system
An electric power system is a network of electrical components used to supply, transmit and use electric power. An example of an electric power system is the network that supplies a region's homes and industry with power—for sizable regions, this power system is known as the grid and can be broadly divided into the generators that supply the power, the transmission system that carries the power from the generating centres to the load centres and the distribution system that feeds the power to nearby homes and industries. Smaller power systems are also found in industry, hospitals, commercial buildings and homes. The majority of these systems rely upon three-phase AC power—the standard for large-scale power transmission and distribution across the modern world. Specialised power systems that do not always rely upon three-phase AC power are found in aircraft, electric rail systems, ocean liners and automobiles.