Chapter 4 Re-VIEW
... cases, focus shifts to basic electrical concepts and devices. The salient items in this section include voltage, current, resistance, power, closed circuits, and various electrical components, such as transistors. Once the electrical background is provided, attention turns toward the description and ...
... cases, focus shifts to basic electrical concepts and devices. The salient items in this section include voltage, current, resistance, power, closed circuits, and various electrical components, such as transistors. Once the electrical background is provided, attention turns toward the description and ...
Voltage Source Inverter Drives and the use of Power
... seen by the providing utility. There are several methods available today to attempt to offset the lagging Kvars imposed by inductive power loads. The two most common methods for improving power factor is the use of shunt capacitors or synchronous motors. Over excitation of a synchronous motor will s ...
... seen by the providing utility. There are several methods available today to attempt to offset the lagging Kvars imposed by inductive power loads. The two most common methods for improving power factor is the use of shunt capacitors or synchronous motors. Over excitation of a synchronous motor will s ...
Power Electronics Converters for Variable Speed Pump
... To obtain variable speed doubly fed adjustable speed pumped storage unit (DFASPSU) has been used [2]-[5]. The operation of variable speed doubly fed adjustable speed pumped storage unit is similar to a doubly fed induction machine used now in the wind generator. The configuration of doubly fed adjus ...
... To obtain variable speed doubly fed adjustable speed pumped storage unit (DFASPSU) has been used [2]-[5]. The operation of variable speed doubly fed adjustable speed pumped storage unit is similar to a doubly fed induction machine used now in the wind generator. The configuration of doubly fed adjus ...
MODEL : PP 1400 SC
... Large capacity integral gear driven pump provides pressure lubrication to all bearings and provides supply for piston cooling. Cummins supplied large capacity oil pans are recommended for Prime and Continuous Power applications. ...
... Large capacity integral gear driven pump provides pressure lubrication to all bearings and provides supply for piston cooling. Cummins supplied large capacity oil pans are recommended for Prime and Continuous Power applications. ...
M-Flex™ Enclosed Drive
... 0.1 Hz to 500 Hz (factory setting of 60 Hz) VT: 110% of nominal motor torque for 60 s CT: 150% of nominal motor torque for 60 s VT: 110% of controller rated current for 60 s CT: 150% of controller rated current for 60 s Selectable from 0.5 kHz to 16 kHz [1] Factory setting: VT: 8 kHz for 208 V, 203 ...
... 0.1 Hz to 500 Hz (factory setting of 60 Hz) VT: 110% of nominal motor torque for 60 s CT: 150% of nominal motor torque for 60 s VT: 110% of controller rated current for 60 s CT: 150% of controller rated current for 60 s Selectable from 0.5 kHz to 16 kHz [1] Factory setting: VT: 8 kHz for 208 V, 203 ...
POWER QUALITY ANALYZER 3197
... Effective Measurement range: 45.00 to 66.00 Hz ±0.01 Hz ±1 dgt. (when input is at least 10% of range) ...
... Effective Measurement range: 45.00 to 66.00 Hz ±0.01 Hz ±1 dgt. (when input is at least 10% of range) ...
Jordan_Radice_Dark_S..
... nm CMOS technology, the near most optimized point to operate at for NTV is at 0.32 V. ...
... nm CMOS technology, the near most optimized point to operate at for NTV is at 0.32 V. ...
rt41LURES IN THREE-PHASE STATOR WINDINGS
... surges. Voltage surges are often the result of switching power circuits, lightning strikes, capacitor discharges and solid-state power devices. ...
... surges. Voltage surges are often the result of switching power circuits, lightning strikes, capacitor discharges and solid-state power devices. ...
Automation and Drives - Siemens Industry Inc
... Power supply with degree of protection IP65 Optimal for the SIMATIC ET 200X SITOP power ...
... Power supply with degree of protection IP65 Optimal for the SIMATIC ET 200X SITOP power ...
Electronically Coupled Distributed Generation Modeling and Control
... removing battery backup reduces costs and increases efficiency, but increases the challenge of solar radiation intermittence. The controller must have the ability to overcome input and output power disturbances that arise when a PV distributed source is connected to the public grid [2,12,32]. A powe ...
... removing battery backup reduces costs and increases efficiency, but increases the challenge of solar radiation intermittence. The controller must have the ability to overcome input and output power disturbances that arise when a PV distributed source is connected to the public grid [2,12,32]. A powe ...
6.302 Feedback Systems
... Prof. Joel L. Dawson In the waveform that you just analyzed, the parameter “D” is called the duty cycle. Modulating, or changing, the duty cycle in order to achieve a certain DC value is a common control technique. It is called pulse width modulation, or PWM. One of the places PWM is useful is in vo ...
... Prof. Joel L. Dawson In the waveform that you just analyzed, the parameter “D” is called the duty cycle. Modulating, or changing, the duty cycle in order to achieve a certain DC value is a common control technique. It is called pulse width modulation, or PWM. One of the places PWM is useful is in vo ...
Harvest Energy from a Single Photovoltaic Cell
... MPPC voltage of 0.4V yields performance near the maximum power point at either illumination extreme. The voltage difference from the maximum power point is approximately 20mV in both cases, resulting in a power loss of less than 3%. As a rule of thumb, the maximum power point control voltage should ...
... MPPC voltage of 0.4V yields performance near the maximum power point at either illumination extreme. The voltage difference from the maximum power point is approximately 20mV in both cases, resulting in a power loss of less than 3%. As a rule of thumb, the maximum power point control voltage should ...
MPA591-5 AC power supply.indd
... Published information other than that marked CERTIFIED does not extend any warranty or representation, expressed or implied, regarding these products. Any such warranties or other terms and conditions of sales and products shall be in accordance with Mono Pumps Limited standard terms and conditions ...
... Published information other than that marked CERTIFIED does not extend any warranty or representation, expressed or implied, regarding these products. Any such warranties or other terms and conditions of sales and products shall be in accordance with Mono Pumps Limited standard terms and conditions ...
Motor Efficiency and Fault Zone Analysis
... The absorption current is made of two components: the polarization of the insulation material and the second is due to the gradual drift of electrons and ions through the insulating material. The polarization current is caused by the reorientation of the insulating material. This material, usually e ...
... The absorption current is made of two components: the polarization of the insulation material and the second is due to the gradual drift of electrons and ions through the insulating material. The polarization current is caused by the reorientation of the insulating material. This material, usually e ...
Chapter 30 Inductance, Electromagnetic Oscillations, and AC Circuits
... 29-6 Transformers and Transmission of Power Example 29-12: Cell phone charger. The charger for a cell phone contains a transformer that reduces 120-V ac to 5.0-V ac to charge the 3.7-V battery. (It also contains diodes to change the 5.0-V ac to 5.0-V dc.) Suppose the secondary coil contains 30 turn ...
... 29-6 Transformers and Transmission of Power Example 29-12: Cell phone charger. The charger for a cell phone contains a transformer that reduces 120-V ac to 5.0-V ac to charge the 3.7-V battery. (It also contains diodes to change the 5.0-V ac to 5.0-V dc.) Suppose the secondary coil contains 30 turn ...
The Role of Advance Voltage Source Inverter in Power System
... phase shifter in which new semiconductor IGCT is used instead of GTO or IGBT for designing the voltage source inverter. The paper analyzed the advantages of IGCT over other power electronics switches. The application of this switch is studied by using voltage source inverter. Work is in progress for ...
... phase shifter in which new semiconductor IGCT is used instead of GTO or IGBT for designing the voltage source inverter. The paper analyzed the advantages of IGCT over other power electronics switches. The application of this switch is studied by using voltage source inverter. Work is in progress for ...
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.