FC Series - Glassman High Voltage
... from short circuit to rated voltage at any load condition. Voltage Monitor: 0 to +10 V equivalent to 0 to rated voltage. Accuracy, 0.5% of reading +0.2% rated. Current Monitor: 0 to +10 V equivalent to 0 to rated current. Accuracy, 1% of reading +0.05% rated. Reversible polarity models: 1% of readin ...
... from short circuit to rated voltage at any load condition. Voltage Monitor: 0 to +10 V equivalent to 0 to rated voltage. Accuracy, 0.5% of reading +0.2% rated. Current Monitor: 0 to +10 V equivalent to 0 to rated current. Accuracy, 1% of reading +0.05% rated. Reversible polarity models: 1% of readin ...
High speed PMSM control without speed encoder based on
... Based on theses limit equations, the field weakening zone can be exploited. Fig (1) presents two types of circles one for the current limitation and one for the voltage limitation condition. The radius of the voltage limitation is proportional to the speed inverses. Effectively, when the speed incre ...
... Based on theses limit equations, the field weakening zone can be exploited. Fig (1) presents two types of circles one for the current limitation and one for the voltage limitation condition. The radius of the voltage limitation is proportional to the speed inverses. Effectively, when the speed incre ...
Advanced Ultra High Speed Motor for Drilling
... Radial or Axial or Modified/ Hybrid Fully adjustable for speed and direction by key embedded in AC current Current gives power/ torque, but limited by metal type and amount, Voltage gives rpm capabilities Nonmagnetic materials required for spacers, journal bearings, shaft Stackable power sections to ...
... Radial or Axial or Modified/ Hybrid Fully adjustable for speed and direction by key embedded in AC current Current gives power/ torque, but limited by metal type and amount, Voltage gives rpm capabilities Nonmagnetic materials required for spacers, journal bearings, shaft Stackable power sections to ...
integration of multiple renewable energy sources for dc microgrid
... inverter. The basic Perturb &Observe (P&O) algorithm is employed albeit with an inverted duty-cycle adjustment in controller 1. This revised adjustment in the proposed scheme is because of the DC-DC boost converter being fed by a stiff DC source (rectifier output) instead of the PV array. Energy Sou ...
... inverter. The basic Perturb &Observe (P&O) algorithm is employed albeit with an inverted duty-cycle adjustment in controller 1. This revised adjustment in the proposed scheme is because of the DC-DC boost converter being fed by a stiff DC source (rectifier output) instead of the PV array. Energy Sou ...
DN-26 UC3842A Low-Cost Start-up and Fault Protection Circuit PDF
... The UC3842A’s current sense node is used as the fault input, and can be configured to provide numerous safeguards. Primary overvoltage protection is accomplished by using a simple resistor divider network or series string of zener diodes to the high voltage rail. Overtemperature protection is possib ...
... The UC3842A’s current sense node is used as the fault input, and can be configured to provide numerous safeguards. Primary overvoltage protection is accomplished by using a simple resistor divider network or series string of zener diodes to the high voltage rail. Overtemperature protection is possib ...
First - West Coast Soarers
... What about Discharging Li-poly cells? Li-poly cells should not be discharged below 3V per cell for best service life. They can go as low as 2.3 V per cell without permanent damage for a single cycle, but if you do this to them on a regular basis, the cell life will be reduced. If the voltage drops t ...
... What about Discharging Li-poly cells? Li-poly cells should not be discharged below 3V per cell for best service life. They can go as low as 2.3 V per cell without permanent damage for a single cycle, but if you do this to them on a regular basis, the cell life will be reduced. If the voltage drops t ...
Synchronous speed
... These have a solid smooth cylindrical rotor, cast of a high coercivity magnetically "hard" cobalt steel.[2][4] This material has a wide hysteresis loop (high retentivity), meaning once it is magnetized in a given direction, it requires a large reverse magnetic field to reverse the magnetization. The ...
... These have a solid smooth cylindrical rotor, cast of a high coercivity magnetically "hard" cobalt steel.[2][4] This material has a wide hysteresis loop (high retentivity), meaning once it is magnetized in a given direction, it requires a large reverse magnetic field to reverse the magnetization. The ...
89GES-II - Directorate General of Shipping
... 1. An eight-pole armature is wound with 480 conductors. The magnetic flux and speed are such that the average e.m.f generated in each conductor is 2.2A. Calculate the terminal voltage on no-load, the output current on full load and total power generated on full load when the armature is (a) lap-conn ...
... 1. An eight-pole armature is wound with 480 conductors. The magnetic flux and speed are such that the average e.m.f generated in each conductor is 2.2A. Calculate the terminal voltage on no-load, the output current on full load and total power generated on full load when the armature is (a) lap-conn ...
Section 13.3: Alternating Current
... A GFCI is similar to a circuit breaker. A GFCI is more sensitive to very small changes in current and opens the circuit much more quickly than a circuit breaker. An AFCI is similar to a GFCI. It acts quickly to shut off a circuit when an arc along the circuit is detected. 7. The difference between t ...
... A GFCI is similar to a circuit breaker. A GFCI is more sensitive to very small changes in current and opens the circuit much more quickly than a circuit breaker. An AFCI is similar to a GFCI. It acts quickly to shut off a circuit when an arc along the circuit is detected. 7. The difference between t ...
250W PWM inverter circuit SG3524.
... Inverter with modified sine wave typically consists of two parts: 1) DC/DC converter that increases the DC input voltage of 12V (24V, 48V) to the high DC voltage corresponding to about the mains voltage amplitude (for mains 230V~ it is 325V=) and 2) polarity switching bridge that turns this increase ...
... Inverter with modified sine wave typically consists of two parts: 1) DC/DC converter that increases the DC input voltage of 12V (24V, 48V) to the high DC voltage corresponding to about the mains voltage amplitude (for mains 230V~ it is 325V=) and 2) polarity switching bridge that turns this increase ...
A literature survey on Energy Efficiency Enhancement in buildings considering
... consisted an algorithm as well as current switching technique resulted better accuracy and lesser complicacy simultaneously. The simulation reveals switching losses but the result shows that THD is limited within the standard. N.Y. Dai et al. (2004) discussed that excessive power quality problems in ...
... consisted an algorithm as well as current switching technique resulted better accuracy and lesser complicacy simultaneously. The simulation reveals switching losses but the result shows that THD is limited within the standard. N.Y. Dai et al. (2004) discussed that excessive power quality problems in ...
STEVAL-ISA005V1
... (step-down) converter with a positive output voltage referenced to the common ground based on the monolithic device VIPer12AS, which is a device that incorporates the PWM controller together with the vertical Power MOSFET switch in a SO-8 package. ...
... (step-down) converter with a positive output voltage referenced to the common ground based on the monolithic device VIPer12AS, which is a device that incorporates the PWM controller together with the vertical Power MOSFET switch in a SO-8 package. ...
STK681-320
... ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www ...
... ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www ...
AN1052 - Diodes Incorporated
... to unstable loop and burst-mode frequency as shown in Figure 14. There must be audible noise frequency (normally from 2kHz to 20kHz) in the unstable loop. The noise from unstable loop can be eliminated by adjusting the loop compensation. For burst-mode frequency, which is unavoidable, one way is to ...
... to unstable loop and burst-mode frequency as shown in Figure 14. There must be audible noise frequency (normally from 2kHz to 20kHz) in the unstable loop. The noise from unstable loop can be eliminated by adjusting the loop compensation. For burst-mode frequency, which is unavoidable, one way is to ...
PDF Version(98KB)
... circuits featuring traction inverter made with all-silicon carbide (SiC), which were installed in a 1000 series urban train operated by Odakyu Electric Railway Co., Ltd. in Japan, have been verified to achieve an approximate 40-percent savings in power consumption compared to a train using conventio ...
... circuits featuring traction inverter made with all-silicon carbide (SiC), which were installed in a 1000 series urban train operated by Odakyu Electric Railway Co., Ltd. in Japan, have been verified to achieve an approximate 40-percent savings in power consumption compared to a train using conventio ...
- ebm
... pressure of a refrigeration circuit. The pressure sensor input and speed control output to the EC fans are 0-10VDC, control of 24 fans maximum. The set point may be set locally by means of a trim device on the control PCB. An optional PC interface allows set-point configuration and data logging from ...
... pressure of a refrigeration circuit. The pressure sensor input and speed control output to the EC fans are 0-10VDC, control of 24 fans maximum. The set point may be set locally by means of a trim device on the control PCB. An optional PC interface allows set-point configuration and data logging from ...
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.