About Electric Motors
... The motor kits can be used as a classroom or laboratory exercise in electromagnetism for high school students. One approach is to have students observe their instructor assemble one motor kit. Each student is then given an instruction sheet and a motor kit to assemble at home. A satisfactory grade i ...
... The motor kits can be used as a classroom or laboratory exercise in electromagnetism for high school students. One approach is to have students observe their instructor assemble one motor kit. Each student is then given an instruction sheet and a motor kit to assemble at home. A satisfactory grade i ...
Word - Center for Sustainable Energy
... expedited permitting, where established. c) A completed Standard Electrical Plan. The standard plan may be used for proposed solar installations 10 kW in size or smaller and can be downloaded at [WEBSITE ADDRESS]. This Guidebook recommends use of a standard plan that allows permit applicants to simp ...
... expedited permitting, where established. c) A completed Standard Electrical Plan. The standard plan may be used for proposed solar installations 10 kW in size or smaller and can be downloaded at [WEBSITE ADDRESS]. This Guidebook recommends use of a standard plan that allows permit applicants to simp ...
Modular Power Series
... Intelligent monitoring, reporting, and control of system and all installed modules. ( Take a look to the live demonstration http://www.ict-power.com/demos/ict-ips-bmm-ldm/) Local and remote password protection. Downloadable firmware updates over Ethernet. AC input voltage, DC output voltage, system ...
... Intelligent monitoring, reporting, and control of system and all installed modules. ( Take a look to the live demonstration http://www.ict-power.com/demos/ict-ips-bmm-ldm/) Local and remote password protection. Downloadable firmware updates over Ethernet. AC input voltage, DC output voltage, system ...
Solid-State Relays 51
... ➋ Inrush current resistivity is the ability of an SSR to withstand a large surge current for a short period of time. Surges are considered non-repetitive (max. repeatability once every 2…5 seconds). Keep the inrush current to half the rated value if it occurs repetitively. Exceeding the non-repetiti ...
... ➋ Inrush current resistivity is the ability of an SSR to withstand a large surge current for a short period of time. Surges are considered non-repetitive (max. repeatability once every 2…5 seconds). Keep the inrush current to half the rated value if it occurs repetitively. Exceeding the non-repetiti ...
Short Circuit
... Upto 63A: Should not trip within 1 hour 3In, 5In & 10In, depending on B, C & D characteristics Instantaneous/Magnetic Tripping 10 times the rated current; Tripping time must comply with time current curve 100ms is the limit for trip time 6 times In (but not less than 150A) at Rated Voltage Icn 10In ...
... Upto 63A: Should not trip within 1 hour 3In, 5In & 10In, depending on B, C & D characteristics Instantaneous/Magnetic Tripping 10 times the rated current; Tripping time must comply with time current curve 100ms is the limit for trip time 6 times In (but not less than 150A) at Rated Voltage Icn 10In ...
Engineering Challenges in Wind Turbine Design
... Approximate models are quite inexact, but may be good enough because WTG contribution to grid fault current is usually much smaller than total Inadequate where wind plant current contribution is dominant, and accuracy is important ...
... Approximate models are quite inexact, but may be good enough because WTG contribution to grid fault current is usually much smaller than total Inadequate where wind plant current contribution is dominant, and accuracy is important ...
Series 5- Thyristors and Compound Semiconductors
... 2. Thyristors are basically electronic switches that command the energy flux from the source to the load. In the 1st quadrant they have two distinct zones. In the first zone, the thyristor presents a high resistance (ideally, it can be considered as an open circuit): the thyristor is blocked (OFF st ...
... 2. Thyristors are basically electronic switches that command the energy flux from the source to the load. In the 1st quadrant they have two distinct zones. In the first zone, the thyristor presents a high resistance (ideally, it can be considered as an open circuit): the thyristor is blocked (OFF st ...
Aalborg Universitet Modular Plug’n’Play Control Architectures for Three-phase Inverters in UPS Applications
... approach to achieve active power sharing among different modules. Inductor current and capacitor voltage are measured to achieve the proposed control. Moreover, regarding reactive power sharing issues, each DC/AC individual reactive power is calculated each phase respectively in order to modify phas ...
... approach to achieve active power sharing among different modules. Inductor current and capacitor voltage are measured to achieve the proposed control. Moreover, regarding reactive power sharing issues, each DC/AC individual reactive power is calculated each phase respectively in order to modify phas ...
To estimate the total leakage in cables under 1100 ft. long, add 20
... To estimate the total leakage in cables under 1100 ft. long, add 20 log L to the figure read from the graph (where L is the cable length in feet). The curve showing the typical performance of the semi-flexible (or solid sheath) cables is based on theory. In practice the shielding efficiency of inter ...
... To estimate the total leakage in cables under 1100 ft. long, add 20 log L to the figure read from the graph (where L is the cable length in feet). The curve showing the typical performance of the semi-flexible (or solid sheath) cables is based on theory. In practice the shielding efficiency of inter ...
MCH6124 数据资料DataSheet下载
... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
High Efficiency, Fast Transient, 7A, 28V Synchronous Step
... voltage and the frequency-set resistor connected to FREQ pin. Connect a resistor to IN for line feed-forward. Decouple with a 1nF capacitor. Feedback. An external resistor divider from the output to GND, tapped to the FB pin, sets the output voltage. Soft Start. Connect an external SS capacitor to p ...
... voltage and the frequency-set resistor connected to FREQ pin. Connect a resistor to IN for line feed-forward. Decouple with a 1nF capacitor. Feedback. An external resistor divider from the output to GND, tapped to the FB pin, sets the output voltage. Soft Start. Connect an external SS capacitor to p ...
RF3285 DUAL-BAND GSM850/PCS1900 TRANSMIT MODULE Features
... not use a directional coupler with a diode detector, these variations do not occur. Also the TX/RX switch with low pass filters that usually follows the PA may contribute to frequency variation. The TX/RX switch incorporated in the RF3285 is very broadband and does not contribute to frequency roll o ...
... not use a directional coupler with a diode detector, these variations do not occur. Also the TX/RX switch with low pass filters that usually follows the PA may contribute to frequency variation. The TX/RX switch incorporated in the RF3285 is very broadband and does not contribute to frequency roll o ...
System Benefits for Solar Inverters using SiC Semiconductor Modules
... neighbored roofs during sunrise and/or sunset are connected to the smaller power input B while the main PV cell areas will provide the most power contingent to the larger power input A. Both DC/DC converters (see Fig. 1) operate independently from each other and supply a common DC-link. To obtain op ...
... neighbored roofs during sunrise and/or sunset are connected to the smaller power input B while the main PV cell areas will provide the most power contingent to the larger power input A. Both DC/DC converters (see Fig. 1) operate independently from each other and supply a common DC-link. To obtain op ...
AD8215 - Analog Devices
... In all current sensing applications, and especially in automotive and industrial environments where the common-mode voltage can vary significantly, it is important that the current sensor maintain the specified output linearity, regardless of the input differential or common-mode voltage. The AD8215 ...
... In all current sensing applications, and especially in automotive and industrial environments where the common-mode voltage can vary significantly, it is important that the current sensor maintain the specified output linearity, regardless of the input differential or common-mode voltage. The AD8215 ...
IC Crystal Oscillator Circuits
... oscillator that works beyond 100MHz as it has enough gain at 3.3V but in reality it would only be practical to make a stable oscillator up to ~20MHz due to the various phase shifts around the oscillator loop. The analysis of this circuit is difficult to generalise as it is very dependant on the fami ...
... oscillator that works beyond 100MHz as it has enough gain at 3.3V but in reality it would only be practical to make a stable oscillator up to ~20MHz due to the various phase shifts around the oscillator loop. The analysis of this circuit is difficult to generalise as it is very dependant on the fami ...
RMSL-5012 OG
... The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the use intended. Since individual applications are subject to great variation, DuraComm makers no representation or warranty as to the merchantability, suitability ...
... The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the use intended. Since individual applications are subject to great variation, DuraComm makers no representation or warranty as to the merchantability, suitability ...
ABB industrial drives ACS880, drive modules 0.55 to 3200 kW Catalog
... The drives are compatible with all kinds of processes. They control virtually any type of AC motor, provide extensive input/output connectivity and support all major fieldbus protocols. The drives cover a wide voltage and power range. Control performance is scalable from basic to demanding applicati ...
... The drives are compatible with all kinds of processes. They control virtually any type of AC motor, provide extensive input/output connectivity and support all major fieldbus protocols. The drives cover a wide voltage and power range. Control performance is scalable from basic to demanding applicati ...
2N4401-T Datasheet
... NPN General Pupose Amplifier This device is designed for use as a medium power amplifier and switch requiring collector currents up to 500 mA. ...
... NPN General Pupose Amplifier This device is designed for use as a medium power amplifier and switch requiring collector currents up to 500 mA. ...
STATCOM Control for Power System Voltage
... The static synchronous compensator, or StatCom, is a shunt connected FACTS device. It generates a balanced set of threephase sinusoidal voltages at the fundamental frequency, with rapidly controllable amplitude and phase angle. This type of controller can be implemented using various topologies. How ...
... The static synchronous compensator, or StatCom, is a shunt connected FACTS device. It generates a balanced set of threephase sinusoidal voltages at the fundamental frequency, with rapidly controllable amplitude and phase angle. This type of controller can be implemented using various topologies. How ...
Features of the high-side family IPS60xx
... the over voltage across the inductance will make the drainto-source voltage rise above the battery voltage. This would cause the body diode to go into avalanche, if no external zener clamps or freewheeling diodes are used, as shown in figure 7. The purpose of the active clamp is to limit the voltage ...
... the over voltage across the inductance will make the drainto-source voltage rise above the battery voltage. This would cause the body diode to go into avalanche, if no external zener clamps or freewheeling diodes are used, as shown in figure 7. The purpose of the active clamp is to limit the voltage ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.