Diesel Generator set KTA38 series engine
... 2007 | Cummins Power Generation Inc. | All rights reserved | Specifications subject to change without notice | Cummins Power Generation and Cummins are registered trademarks of Cummins Inc. PowerCommand, AmpSentry, InPower and “Our energy working for you.” are trademarks of Cummins Power Generation. ...
... 2007 | Cummins Power Generation Inc. | All rights reserved | Specifications subject to change without notice | Cummins Power Generation and Cummins are registered trademarks of Cummins Inc. PowerCommand, AmpSentry, InPower and “Our energy working for you.” are trademarks of Cummins Power Generation. ...
Medium Voltage Multilevel Converters for a Multi-MW Wind Turbine Grid Connection
... grids were needed and have been introduced recently. Meanwhile, the wind power technology has advanced as well such that wind turbine power ratings have exceeded 3MW [1]. These two advances have made utilization of full-scale grid side power electronics converters more practical such that these high ...
... grids were needed and have been introduced recently. Meanwhile, the wind power technology has advanced as well such that wind turbine power ratings have exceeded 3MW [1]. These two advances have made utilization of full-scale grid side power electronics converters more practical such that these high ...
PDF
... The Solving the maximum loadability problem gives the maximum real and reactive power demand that a power system is able to bear, while operating at a stable point (i.e., one which does not change considerably for small increments on the systems parameters such as load or operational limits), that r ...
... The Solving the maximum loadability problem gives the maximum real and reactive power demand that a power system is able to bear, while operating at a stable point (i.e., one which does not change considerably for small increments on the systems parameters such as load or operational limits), that r ...
![Dynamic VAR`s [D-VAR]](http://s1.studyres.com/store/data/008161131_1-082e6e1fddaf6a197897b251ba053ae1-300x300.png)
Dynamic VAR`s [D-VAR]
... • Import/ Transfer Capability Restrictions • Limited ability to reliably import, export, or transfer power • Mitigate ...
... • Import/ Transfer Capability Restrictions • Limited ability to reliably import, export, or transfer power • Mitigate ...
California Instruments BPS Series 30–180 kVA 150–400 V 0–400 A
... Voltage (rms): ± 0.3 Vrms, Frequency: ± 0.01 % of programmed value, Current Limit: - 0 % to + 5 % of programmed value + 1A, Phase: < 0.5° + 0.2°/ 100 Hz with balanced load ...
... Voltage (rms): ± 0.3 Vrms, Frequency: ± 0.01 % of programmed value, Current Limit: - 0 % to + 5 % of programmed value + 1A, Phase: < 0.5° + 0.2°/ 100 Hz with balanced load ...
Uninterruptible Power Supplies (UPS)
... Standby UPSs are generally not used for telecom equipment because the square wave output is not tolerated by even the best equipment. These UPSs are best for PCs because they usually supply just enough time to shutdown. Telecom equipment needs a much longer back-up period. With line interactive and ...
... Standby UPSs are generally not used for telecom equipment because the square wave output is not tolerated by even the best equipment. These UPSs are best for PCs because they usually supply just enough time to shutdown. Telecom equipment needs a much longer back-up period. With line interactive and ...
Designing Wide Range Power Supplies for Three Phase Industrial
... across Q1 and U1 (due to leakage inductance) during the flyback interval. The circuit on the secondary of transformer T1 provides output rectification, filtering and feedback. Diode D10 rectifies the output. Capacitor C2 filters the rectified output. Inductor L2 and capacitor C3 form a second-stage ...
... across Q1 and U1 (due to leakage inductance) during the flyback interval. The circuit on the secondary of transformer T1 provides output rectification, filtering and feedback. Diode D10 rectifies the output. Capacitor C2 filters the rectified output. Inductor L2 and capacitor C3 form a second-stage ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... transistor (IGBT), Metal-oxide-semiconductor field effect transistors (MOSFETs) [6-8] and MOS-controlled thyristor (MCT). Power system harmonic are not new fact. It is mainly caused by saturation of loads such as transformers, industrial arc furnaces, cables, switching mode power supplies and other ...
... transistor (IGBT), Metal-oxide-semiconductor field effect transistors (MOSFETs) [6-8] and MOS-controlled thyristor (MCT). Power system harmonic are not new fact. It is mainly caused by saturation of loads such as transformers, industrial arc furnaces, cables, switching mode power supplies and other ...
CHAPTER-3 DSTATCOM
... conventional structures without increasing the switching frequency. The additional flexibility of a level in the output voltage is used to assist in the output waveform construction. In this way, the harmonic performance of the inverter is improved, also obtaining better efficiency and reliability r ...
... conventional structures without increasing the switching frequency. The additional flexibility of a level in the output voltage is used to assist in the output waveform construction. In this way, the harmonic performance of the inverter is improved, also obtaining better efficiency and reliability r ...
FI3110651072
... such a way as to demand this dc terminal power (positive or negative) from the line keeping the voltage across the storage capacitor Vdc constant. So, the net real power absorbed from the line by the UPFC is equal only to the losses of the inverters and their transformers. The remaining capacity of ...
... such a way as to demand this dc terminal power (positive or negative) from the line keeping the voltage across the storage capacitor Vdc constant. So, the net real power absorbed from the line by the UPFC is equal only to the losses of the inverters and their transformers. The remaining capacity of ...
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.