SELECTION STANDBY GUIDE 9
... selection of the diesel generator set load capability. This margin can be provided by esti- ...
... selection of the diesel generator set load capability. This margin can be provided by esti- ...
2. measurement of the windings resistance for universal motors
... Motors that can be used with a single-phase AC source as well as a DC source of supply voltages are called universal motors. Universal motors differ in design from the induction motors. They have a series wound rotor circuitry similar to that of DC motors. The rotor of a universal series motor is ma ...
... Motors that can be used with a single-phase AC source as well as a DC source of supply voltages are called universal motors. Universal motors differ in design from the induction motors. They have a series wound rotor circuitry similar to that of DC motors. The rotor of a universal series motor is ma ...
Chapter 13 - Mr.E Science
... 1. Moving a coil of wire up and down in a magnetic field or 2. Moving a magnetic field up and down through a coil of wire B. Alternating & direct current 1. The flow of an induced current may be constant or may change direction 2. Alternating current – AC – as a coil is moved up & down on a magnet r ...
... 1. Moving a coil of wire up and down in a magnetic field or 2. Moving a magnetic field up and down through a coil of wire B. Alternating & direct current 1. The flow of an induced current may be constant or may change direction 2. Alternating current – AC – as a coil is moved up & down on a magnet r ...
KF3617641768
... unexpected problems such as conducted EMI, shaft voltages and breakdown of motor insulation. Many studies for reducing the CMV have been progressed [1]. Since these methods require additional hardware and has drawbacks of increase in inverter weight and volume which are unavoidable. Direct Torque Co ...
... unexpected problems such as conducted EMI, shaft voltages and breakdown of motor insulation. Many studies for reducing the CMV have been progressed [1]. Since these methods require additional hardware and has drawbacks of increase in inverter weight and volume which are unavoidable. Direct Torque Co ...
power_supply_and_cables
... • Each channel is a current-mode controlled switching converter, the parallelizable module allows a “master” channel error amp to drive slave channel current control • This works for any load 0 – 100% and requires no balancing resistors (unlike some other paralleling schemes) • We would use 3, 3, an ...
... • Each channel is a current-mode controlled switching converter, the parallelizable module allows a “master” channel error amp to drive slave channel current control • This works for any load 0 – 100% and requires no balancing resistors (unlike some other paralleling schemes) • We would use 3, 3, an ...
What Do All Those Things on an AC Motor Nameplate Mean?
... Shaft horsepower is a measure of the motor's mechanical output rating, its ability to deliver the torque required for the load at rated speed. It is usually given as "HP" on the nameplate. In general: HP = (Torque) x (speed)/5,250 where: Torque is in lb-ft Speed is in rpm Full-load speed The speed a ...
... Shaft horsepower is a measure of the motor's mechanical output rating, its ability to deliver the torque required for the load at rated speed. It is usually given as "HP" on the nameplate. In general: HP = (Torque) x (speed)/5,250 where: Torque is in lb-ft Speed is in rpm Full-load speed The speed a ...
Magnet Charger/Magnetizer Model 8515
... adapted to a wide range of production and laboratory magnetizing requirements. A modern solid state electronic control circuit, coupled with a rugged, heavy duty discharge SCR and fixture, make this magnetizer a highly reliable, low maintenance unit. The electronic voltage control circuit prevents t ...
... adapted to a wide range of production and laboratory magnetizing requirements. A modern solid state electronic control circuit, coupled with a rugged, heavy duty discharge SCR and fixture, make this magnetizer a highly reliable, low maintenance unit. The electronic voltage control circuit prevents t ...
How do they work?
... Since the phenomenon of mutual induction relies on changing magnetic fields, and direct current (DC) can only produce steady magnetic fields, transformers simply will not work with direct current. Of course, direct current may be interrupted (pulsed) through the primary winding of a transformer to c ...
... Since the phenomenon of mutual induction relies on changing magnetic fields, and direct current (DC) can only produce steady magnetic fields, transformers simply will not work with direct current. Of course, direct current may be interrupted (pulsed) through the primary winding of a transformer to c ...
ROBICON Perfect Harmony - East Coast Electrical Motor Inventory
... Torque ripple 1% or less on driven load at all operating frequencies ...
... Torque ripple 1% or less on driven load at all operating frequencies ...
MEEPP 201 Power Electronic System Control -set1
... Vd = 20V and the output V0 is regulated to be constant at 15V. It is supplying 10W to a load. Assume ideal components. Calculate the percentage errors in assuming a constant voltage across C1 or in assuming constant currents iL1 and IL2. ...
... Vd = 20V and the output V0 is regulated to be constant at 15V. It is supplying 10W to a load. Assume ideal components. Calculate the percentage errors in assuming a constant voltage across C1 or in assuming constant currents iL1 and IL2. ...
Document
... A new approach for static reactive power compensation has been presented in this paper. Conventional thyristor controlled Static VAR Compensators (SVC) have inherent disadvantages like slow response times and poor harmonic performance as these FACTS devices are based on slow switching power electron ...
... A new approach for static reactive power compensation has been presented in this paper. Conventional thyristor controlled Static VAR Compensators (SVC) have inherent disadvantages like slow response times and poor harmonic performance as these FACTS devices are based on slow switching power electron ...
Application Note Protecting Low Current Loads in Harsh
... the SA28A TVS, replaces the 5 kW device, saving board space and cost. An SA28A was chosen in this example since its current rating for a 10/1000 µs pulse is 11 A, easily withstanding the 3.7 A surge calculated above. Although the maximum clamping voltage for the SA28A is given on the data sheet as 4 ...
... the SA28A TVS, replaces the 5 kW device, saving board space and cost. An SA28A was chosen in this example since its current rating for a 10/1000 µs pulse is 11 A, easily withstanding the 3.7 A surge calculated above. Although the maximum clamping voltage for the SA28A is given on the data sheet as 4 ...
DN445 - uModule LED Driver Integrates All Circuitry, Including the Inductor, in a Surface Mount Package
... regulated voltage and current make LED driver circuits more complex than the venerable light bulb, but some new devices are closing the gap. For instance, the LTM ®8040 μModule™ LED driver integrates all the driver circuitry into a single package, allowing designers to refocus their time and effort ...
... regulated voltage and current make LED driver circuits more complex than the venerable light bulb, but some new devices are closing the gap. For instance, the LTM ®8040 μModule™ LED driver integrates all the driver circuitry into a single package, allowing designers to refocus their time and effort ...
Flexible, efficient voltage translation for open-drain and push-pull apps NXP bidirectional voltage
... delay. Assuming the higher voltage is on the Bn port when the Bn port is HIGH, the voltage on the An port is limited to the voltage set by Vref(A). When the An port is HIGH, the Bn port is pulled to the drain pull-up supply voltage [Vpu(D)] by the pullup resistors. This functionality allows a seamle ...
... delay. Assuming the higher voltage is on the Bn port when the Bn port is HIGH, the voltage on the An port is limited to the voltage set by Vref(A). When the An port is HIGH, the Bn port is pulled to the drain pull-up supply voltage [Vpu(D)] by the pullup resistors. This functionality allows a seamle ...
Overcurrent Protection and Voltage Sag Coordination in Systems
... Induction generators will show a special behavior when a short circuit takes place Short-circuit current value and transient behavior of generator that provides power through inverters are ...
... Induction generators will show a special behavior when a short circuit takes place Short-circuit current value and transient behavior of generator that provides power through inverters are ...
Tender specifications
... Projector and/or electronic whiteboard compatibility allows the unit to be explained and demonstrated to an entire class at one time. Capable of doing applied research, real industrial simulation, training courses, etc. Remote operation and control by the user and remote control for EDIBON technical ...
... Projector and/or electronic whiteboard compatibility allows the unit to be explained and demonstrated to an entire class at one time. Capable of doing applied research, real industrial simulation, training courses, etc. Remote operation and control by the user and remote control for EDIBON technical ...
Instruction Manual - Fuji Electric Europe
... *6 Refers to the estimated value to apply when the power supply capacity is 500 kVA (inverter capacity x 10 when the inverter capacity exceeds 50 kVA) and the inverter is connected to the %X = 5% power supply. *7 Refers to the value to apply when a DC reactor (DCR) is used. *8 Refers to the average ...
... *6 Refers to the estimated value to apply when the power supply capacity is 500 kVA (inverter capacity x 10 when the inverter capacity exceeds 50 kVA) and the inverter is connected to the %X = 5% power supply. *7 Refers to the value to apply when a DC reactor (DCR) is used. *8 Refers to the average ...
LM7808
... the CDIL Web Site/CD are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product; neither does it convey any licens ...
... the CDIL Web Site/CD are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product; neither does it convey any licens ...
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.