Harmonic management of transmission and distribution systems
... computer power supplies and battery chargers[10-12]. For example, standard industrial variable speed drives use the dc or induction motor with thyristor or rectifier respectively. The converters which produce a high frequency supply will b e c o m e more c o m m o n to be used for lighting systems d ...
... computer power supplies and battery chargers[10-12]. For example, standard industrial variable speed drives use the dc or induction motor with thyristor or rectifier respectively. The converters which produce a high frequency supply will b e c o m e more c o m m o n to be used for lighting systems d ...
Switchmode Power Supply Handbook, Third Edition
... of the possibility of human or mechanical error by our sources, McGraw-Hill, or others, McGraw-Hill does not guarantee the accuracy, adequacy, or completeness of any information and is not responsible for any errors or omissions or the results obtained from the use of such information. TERMS OF USE ...
... of the possibility of human or mechanical error by our sources, McGraw-Hill, or others, McGraw-Hill does not guarantee the accuracy, adequacy, or completeness of any information and is not responsible for any errors or omissions or the results obtained from the use of such information. TERMS OF USE ...
2-kW Electric Power Transmission Training Systems - Lab-Volt
... SERIES 8059 – 220 V – 50 Hz VERSION understandable by anyone who has foundational knowledge of electricity. The 2-kW Electric Power Transmission Training Systems are available in four versions. Model 8059-2 is a complete system using analog meters to perform the measurements. Model 8059-4 is also a ...
... SERIES 8059 – 220 V – 50 Hz VERSION understandable by anyone who has foundational knowledge of electricity. The 2-kW Electric Power Transmission Training Systems are available in four versions. Model 8059-2 is a complete system using analog meters to perform the measurements. Model 8059-4 is also a ...
2. Capacitors - Wikimedia Commons
... attached to a capacitor for a sufficient amount of time, no current can flow through the capacitor. However, if a time-varying voltage is applied across the leads of the capacitor, a displacement current can flow. An ideal capacitor is characterized by a single constant value for its capacitance. Capaci ...
... attached to a capacitor for a sufficient amount of time, no current can flow through the capacitor. However, if a time-varying voltage is applied across the leads of the capacitor, a displacement current can flow. An ideal capacitor is characterized by a single constant value for its capacitance. Capaci ...
Quad-Core Intel® Xeon® Processor 5400 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 ...
PA-800 Series Hardware Reference
... These ports are for network traffic and their speed varies depending on your firewall and configuration. PA‐820 Firewalls Four 1Gbps SFP ports; you cannot reconfigure these ports. PA‐850 Firewalls Four 1Gbps SFP ports or four 10Gbps SFP+ ports (default); you can specify which you want to use but y ...
... These ports are for network traffic and their speed varies depending on your firewall and configuration. PA‐820 Firewalls Four 1Gbps SFP ports; you cannot reconfigure these ports. PA‐850 Firewalls Four 1Gbps SFP ports or four 10Gbps SFP+ ports (default); you can specify which you want to use but y ...
DMMS 300+/350/425 - Electro Industries
... DEMAND: Average energy consumed over a specified time interval. The utility determines the interval, typically 15 or 30 minutes. The utility measures the maximum demand over a billing period. This measurement exhibits a deviation from average consumption, causing the utility to provide generating ca ...
... DEMAND: Average energy consumed over a specified time interval. The utility determines the interval, typically 15 or 30 minutes. The utility measures the maximum demand over a billing period. This measurement exhibits a deviation from average consumption, causing the utility to provide generating ca ...
FTB 312-3 - Flash Technology
... precaution, exercise extreme caution at all times when you expose circuits and components, and when you operate, maintain, or service this equipment. ...
... precaution, exercise extreme caution at all times when you expose circuits and components, and when you operate, maintain, or service this equipment. ...
Solid State Relay
... SSRs can be classified by appearance, such as panel-mounting models, socket models, or PCB models, or by applications, as shown below. The optimum SSR can be selected depending on the purpose, and this is another important feature of SSRs. ...
... SSRs can be classified by appearance, such as panel-mounting models, socket models, or PCB models, or by applications, as shown below. The optimum SSR can be selected depending on the purpose, and this is another important feature of SSRs. ...
TEK THM 550 Service
... Use Proper Voltage Setting. Before applying power, ensure that the line selector is in the proper position for the power source being used. Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source. Ground the Product. Some of the ...
... Use Proper Voltage Setting. Before applying power, ensure that the line selector is in the proper position for the power source being used. Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source. Ground the Product. Some of the ...
Magnecraft™ Power Relays
... 2. Motor horsepower ratings are based on a power factor of 0.4–0.5, and an initial inrush current not exceeding six times the full-load current. 3. All ratings are based on applying the rated nominal power to the relay coil so as to provide a “clean” make and break that does not result in any conta ...
... 2. Motor horsepower ratings are based on a power factor of 0.4–0.5, and an initial inrush current not exceeding six times the full-load current. 3. All ratings are based on applying the rated nominal power to the relay coil so as to provide a “clean” make and break that does not result in any conta ...
220 W LCD TV Power Supply GreenPoint® Reference Design
... • Brown-out detection: The controller will not allow operation in low mains conditions. You can adjust the level at which the circuit starts or stops operation. • Ramp compensation: Designing in Continuous Conduction Mode helps to reduce conduction losses. However, at low input voltage (85 Vac), the ...
... • Brown-out detection: The controller will not allow operation in low mains conditions. You can adjust the level at which the circuit starts or stops operation. • Ramp compensation: Designing in Continuous Conduction Mode helps to reduce conduction losses. However, at low input voltage (85 Vac), the ...
CURSO DE ELECTRONICA IV Alfonso Pérez García.
... Every oscillator has at least one active device (smarties don't complicate matters for me - just read on) be it a transistor or even the old valve. This active device and, for this tutorial we'll stick to the humble transistor, acts as an amplifier. There is nothing flash about that. For this first ...
... Every oscillator has at least one active device (smarties don't complicate matters for me - just read on) be it a transistor or even the old valve. This active device and, for this tutorial we'll stick to the humble transistor, acts as an amplifier. There is nothing flash about that. For this first ...
Power Management Selection Guide 2015 01_00
... High Voltage MOSFETs An efficiency optimized solution can be achieved with CoolMOS™ C6/E6 families. Both families include a gate resistor which gives a good balance in ease-of-use, efficiency and reduced EMI. For cost sensitive Consumer applications we recommend CoolMOS™ CE family. This technology o ...
... High Voltage MOSFETs An efficiency optimized solution can be achieved with CoolMOS™ C6/E6 families. Both families include a gate resistor which gives a good balance in ease-of-use, efficiency and reduced EMI. For cost sensitive Consumer applications we recommend CoolMOS™ CE family. This technology o ...
SPM Synchronous Motor Protection and Control
... GE Digital Energy’s Quality Management System is registered to ISO9001:2008 QMI # 005094 UL # A3775 ...
... GE Digital Energy’s Quality Management System is registered to ISO9001:2008 QMI # 005094 UL # A3775 ...
SPM Synchronous Motor Protection and Control
... RELAY OUTPUTS ............................................................................................. 2-6 CURRENT TRANSFORMER INPUT ................................................................. 2-6 POWER FACTOR OUTPUT ........................................................................ ...
... RELAY OUTPUTS ............................................................................................. 2-6 CURRENT TRANSFORMER INPUT ................................................................. 2-6 POWER FACTOR OUTPUT ........................................................................ ...
Power factor
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of -1 to 1. A power factor of less than one means that the voltage and current waveforms are not in phase, reducing the instantaneous product of the two waveforms (V x I). Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power will be greater than the real power. A negative power factor occurs when the device (which is normally the load) generates power, which then flows back towards the source, which is normally considered the generator.In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher cost to industrial or commercial customers where there is a low power factor.Linear loads with low power factor (such as induction motors) can be corrected with a passive network of capacitors or inductors. Non-linear loads, such as rectifiers, distort the current drawn from the system. In such cases, active or passive power factor correction may be used to counteract the distortion and raise the power factor. The devices for correction of the power factor may be at a central substation, spread out over a distribution system, or built into power-consuming equipment.