2. Flux Weakening of PMSM
... desirable. It is common for traction drives with asynchronous motors as well as for dc motors. Although it causes other problems, the flux weakening is unavoidable also for PMSM. A point of flux weakening is suppressing of back emf in high speed of drive. When the drive reaches nominal speed, a conv ...
... desirable. It is common for traction drives with asynchronous motors as well as for dc motors. Although it causes other problems, the flux weakening is unavoidable also for PMSM. A point of flux weakening is suppressing of back emf in high speed of drive. When the drive reaches nominal speed, a conv ...
Precision PWM voltage regulator with automatic bypass
... The low-weight, high efficiency VRp is easy to install in any environment. The automatic bypass assures that connected equipment will not shut down, even if VRp fails. VRp is compatible with all loads as it does not switch any components in the power path. VRp’s ultra-low impedance assures stability ...
... The low-weight, high efficiency VRp is easy to install in any environment. The automatic bypass assures that connected equipment will not shut down, even if VRp fails. VRp is compatible with all loads as it does not switch any components in the power path. VRp’s ultra-low impedance assures stability ...
V 1 by
... are definitions for the magnitude of voltage and current The bipolar nature of electric charge ( + , - ) require that we assign polarity references to these variables ( voltage and current) as will be done next section Although current is made up of discrete moving electrons, we consider them and th ...
... are definitions for the magnitude of voltage and current The bipolar nature of electric charge ( + , - ) require that we assign polarity references to these variables ( voltage and current) as will be done next section Although current is made up of discrete moving electrons, we consider them and th ...
STEVAL-IHM015V1
... communication (ICC) standard interface to connect to the host PC via in-circuit debuggers/programmers such as the inDARTSTX board from Softec. The power stage of the board is designed to support up to 25 A and up to 50 V. It is possible to use the STS8DNH3LL devices included on the board, or replace ...
... communication (ICC) standard interface to connect to the host PC via in-circuit debuggers/programmers such as the inDARTSTX board from Softec. The power stage of the board is designed to support up to 25 A and up to 50 V. It is possible to use the STS8DNH3LL devices included on the board, or replace ...
SPT601 - ssousa.com
... The SPT601 consists of an AlGaAs LED optically coupled to a photo-sensitive SCR. Optical coupling provides high isolation levels while maintaining low-level DC signal control capability. With high load voltage and low input current, the SPT601 is an ideal solution to drive SCR Triacs and Solid State ...
... The SPT601 consists of an AlGaAs LED optically coupled to a photo-sensitive SCR. Optical coupling provides high isolation levels while maintaining low-level DC signal control capability. With high load voltage and low input current, the SPT601 is an ideal solution to drive SCR Triacs and Solid State ...
A Novel Three-Phase Buck–Boost AC–DC
... years has resulted in a greater need to limit these harmonics to meet regulatory standards. This can be done by some form of power factor correction (PFC) to shape the input phase currents so that they are sinusoidal and in phase with the phase voltages. Three-phase PFC is typically done by using a ...
... years has resulted in a greater need to limit these harmonics to meet regulatory standards. This can be done by some form of power factor correction (PFC) to shape the input phase currents so that they are sinusoidal and in phase with the phase voltages. Three-phase PFC is typically done by using a ...
Types of DR Island Systems - IEEE Standards working groups
... Full load pickup can be up to 6x normal load May require load control and/or the ability to parallel multiple generators before load connection Could have systems that carry through on grid fail, but cannot perform a cold load pickup Turbines have little peak capability. Recip machines typ ...
... Full load pickup can be up to 6x normal load May require load control and/or the ability to parallel multiple generators before load connection Could have systems that carry through on grid fail, but cannot perform a cold load pickup Turbines have little peak capability. Recip machines typ ...
To read a diagram, we must understand a circuit. Here is Dictionary
... The numbers correspond with wires in the motor. The lines going to them from outside the circle are wires coming from the control box, or going to the brake. The start windings are numbers 8 and 5. The diagram should show a connection between the two as they are connected by a motor centrifugal sta ...
... The numbers correspond with wires in the motor. The lines going to them from outside the circle are wires coming from the control box, or going to the brake. The start windings are numbers 8 and 5. The diagram should show a connection between the two as they are connected by a motor centrifugal sta ...
StarPower spec sheet.qxd
... Equipment and accessories furnished under the terms of this specification shall be the standard product of a single manufacturer and shall be equal in all respects to those supplied by LightGuard. Catalog numbers and model designations which appear herein indicate design, quality and the type of mat ...
... Equipment and accessories furnished under the terms of this specification shall be the standard product of a single manufacturer and shall be equal in all respects to those supplied by LightGuard. Catalog numbers and model designations which appear herein indicate design, quality and the type of mat ...
Design 3 - godinweb
... ◊ Increased current with low R (fanout limitation) ◊ Timing losses (with ever-present capacitance) ...
... ◊ Increased current with low R (fanout limitation) ◊ Timing losses (with ever-present capacitance) ...
T11 Memorandum
... Charge Controller’ for each 10 module string. The maximum input it can take is 600V and the maximum input the solar modules can output is 456V. In terms of current, each string will generate maximum of 8.8A and the input current limit for the charge controller is 28A. So all the values are justified ...
... Charge Controller’ for each 10 module string. The maximum input it can take is 600V and the maximum input the solar modules can output is 456V. In terms of current, each string will generate maximum of 8.8A and the input current limit for the charge controller is 28A. So all the values are justified ...
ISM-DRD Grade 3 Dry Run Detector ISM-DRD
... External switch – Rapid Cycle Protection. Your electric motor accumulates a certain amount of heat each time it is switched on. It must run for a period of time during which it has the opportunity to dissipate the heat. The ISM-DRD will do the necessary calculations and management of the switchin ...
... External switch – Rapid Cycle Protection. Your electric motor accumulates a certain amount of heat each time it is switched on. It must run for a period of time during which it has the opportunity to dissipate the heat. The ISM-DRD will do the necessary calculations and management of the switchin ...
TIP142 TIP147 - Tayda Electronics
... 1. Pulsed duration = 300 µs, duty cycle ≤ 1.5%. For PNP type voltage and current are negative. ...
... 1. Pulsed duration = 300 µs, duty cycle ≤ 1.5%. For PNP type voltage and current are negative. ...
to the complete article
... We must not forget in any case that we are building a no compromise amp. so the slight difference in cost cannot be important. For this purpose the interstage transformer used is the LL1671 designed by Lundahl with a low resistance and good output swing. Instead of other commercial products any Lund ...
... We must not forget in any case that we are building a no compromise amp. so the slight difference in cost cannot be important. For this purpose the interstage transformer used is the LL1671 designed by Lundahl with a low resistance and good output swing. Instead of other commercial products any Lund ...
transducers
... • We’ve only briefly touched on most basic types • Many other transducers are used/common, almost for any physical quantity one can think of • Processing electronics is often essential: output of many sensors is not linear, needs impedance transform, filtering, etc. • For additional references see • ...
... • We’ve only briefly touched on most basic types • Many other transducers are used/common, almost for any physical quantity one can think of • Processing electronics is often essential: output of many sensors is not linear, needs impedance transform, filtering, etc. • For additional references see • ...
Lesson 16: Asynchronous Generators/Induction Generators
... • Require a source of reactive power to operate – When connect to grid, system supplies reactive power to operate generator ...
... • Require a source of reactive power to operate – When connect to grid, system supplies reactive power to operate generator ...
analysis of a dual buck converter fed four-quadrant dc drive
... value of the armature current.The positive sign is used in equations (4) and (5) for analysing the generating mode operation of the dc machine. Thus, it is evident from equation (4) that the induced EMF of the machine in the generating mode will be higher than that of the motoring mode. Apart from t ...
... value of the armature current.The positive sign is used in equations (4) and (5) for analysing the generating mode operation of the dc machine. Thus, it is evident from equation (4) that the induced EMF of the machine in the generating mode will be higher than that of the motoring mode. Apart from t ...
Konti-Skan 1 HVDC pole replacement
... The former Pole 1 of Konti-Skan was rated 250kV at 1000 amperes, but since new cables of higher rating have been installed the new pole will be rated 285kV at 1350 amperes, 380MW. Power is reversible. At both ends of the cable lengths (87km total) there are sections of overhead line of 52 and 10km. ...
... The former Pole 1 of Konti-Skan was rated 250kV at 1000 amperes, but since new cables of higher rating have been installed the new pole will be rated 285kV at 1350 amperes, 380MW. Power is reversible. At both ends of the cable lengths (87km total) there are sections of overhead line of 52 and 10km. ...
LXP brochure - Power Product Services
... at 46VDC to 25.8 amps at 58VDC. When operated at 120VAC nominal input the output power is rated at 750 watts, 16.3 amps at 46VDC to 12.9 amps at 58VDC. The rectifier will provide up to 100% of rated power at 65°C. As the temperature increases from 65°C to 80°C, the thermal power limit circuit linear ...
... at 46VDC to 25.8 amps at 58VDC. When operated at 120VAC nominal input the output power is rated at 750 watts, 16.3 amps at 46VDC to 12.9 amps at 58VDC. The rectifier will provide up to 100% of rated power at 65°C. As the temperature increases from 65°C to 80°C, the thermal power limit circuit linear ...
DTB143TK
... 1) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equivalent circuit). 2) The bias resistors consist of thin-film resistors with complete isolation to allow positive biasing of the input. They also have the advantage of almost ...
... 1) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equivalent circuit). 2) The bias resistors consist of thin-film resistors with complete isolation to allow positive biasing of the input. They also have the advantage of almost ...
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.