Current Transformers Ratio / Polarity / Types
... Hall-Effect CT’s are not current transformers in the conventional sense, rather they are electronic circuit transducers which can be applied in the measurement of either AC or DC circuit currents. These devices have many applications; they are commonly used in Variable Frequency Drives (VFD’s) to me ...
... Hall-Effect CT’s are not current transformers in the conventional sense, rather they are electronic circuit transducers which can be applied in the measurement of either AC or DC circuit currents. These devices have many applications; they are commonly used in Variable Frequency Drives (VFD’s) to me ...
Limitorque QX - Flowserve Corporation
... Limitorque QX Smart Valve Actuator The full measure of safety and reliability in the next-generation smart quarter-turn actuator. The Flowserve Limitorque QX quarter-turn smart electronic valve actuator continues the legacy of the industry’s state-of-the-art, non-intrusive, multi-turn MX actuator by ...
... Limitorque QX Smart Valve Actuator The full measure of safety and reliability in the next-generation smart quarter-turn actuator. The Flowserve Limitorque QX quarter-turn smart electronic valve actuator continues the legacy of the industry’s state-of-the-art, non-intrusive, multi-turn MX actuator by ...
A compact, high voltage 25kW, 50 kHz DC
... The overall design of the DAB and also the loss distribution are presented in Section V. In Fig. 5 the turn off losses for the nominal voltage of 350 V are given. There, the losses at (25 ◦ C) have been measured and as could be seen, these correspond very well to the losses given in the data sheet. ...
... The overall design of the DAB and also the loss distribution are presented in Section V. In Fig. 5 the turn off losses for the nominal voltage of 350 V are given. There, the losses at (25 ◦ C) have been measured and as could be seen, these correspond very well to the losses given in the data sheet. ...
AH293 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
... AH293 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-collector transistors for Motor’s coil driving, automatic lock current shutdown, and recovery protections. Also, rotor-state detection (RD) output is for speed detection. ...
... AH293 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-collector transistors for Motor’s coil driving, automatic lock current shutdown, and recovery protections. Also, rotor-state detection (RD) output is for speed detection. ...
AN1541/D Introduction to Insulated Gate Bipolar Transistors
... thyristors, the IGBT is faster, has better dv/dt immunity and, above all, has better gate turn−off capability. While some thyristors such as GTOs are capable of being turned off at the gate, substantial reverse gate current is required, whereas turning off an IGBT only requires that the gate capacit ...
... thyristors, the IGBT is faster, has better dv/dt immunity and, above all, has better gate turn−off capability. While some thyristors such as GTOs are capable of being turned off at the gate, substantial reverse gate current is required, whereas turning off an IGBT only requires that the gate capacit ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... performance. The typical sheet resistance was sufficiently small that large values of resistors required large areas. The higher values of resistance attained with pinched resistors suffered nonlinearity. In addition, the tolerance of the resistors , their temperature coefficient, and their voltage ...
... performance. The typical sheet resistance was sufficiently small that large values of resistors required large areas. The higher values of resistance attained with pinched resistors suffered nonlinearity. In addition, the tolerance of the resistors , their temperature coefficient, and their voltage ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... eliminating harmonics and simplest method but drawbacks of this method are resonant problem, low power factor and large size. So shunt active power filter is most commonly used because of better harmonics compensator and reactive power compensator due to improve the power factor. The shunt active po ...
... eliminating harmonics and simplest method but drawbacks of this method are resonant problem, low power factor and large size. So shunt active power filter is most commonly used because of better harmonics compensator and reactive power compensator due to improve the power factor. The shunt active po ...
High Power Switching Systems Word Document
... forward-blocking state, where the device is forward-biased, but not conducting, into the conducting state when it receives a sufficient gate pulse. As a result, it dissipates very little power in the process. In the conducting state, there is a residual voltage drop of around one volt between anode ...
... forward-blocking state, where the device is forward-biased, but not conducting, into the conducting state when it receives a sufficient gate pulse. As a result, it dissipates very little power in the process. In the conducting state, there is a residual voltage drop of around one volt between anode ...
Oriental Motors BMU2 Operating Manual
... When an ambient temperature is low, since the load torque may increase by the oil seal or viscosity increment of grease used in the gearhead, the output torque may decrease or an overload alarm may generate. However, as time passes, the oil seal or grease is warmed up, and the motor can be driven wi ...
... When an ambient temperature is low, since the load torque may increase by the oil seal or viscosity increment of grease used in the gearhead, the output torque may decrease or an overload alarm may generate. However, as time passes, the oil seal or grease is warmed up, and the motor can be driven wi ...
CPCO - 8000 - 160mm
... The CPCO incorporates a switching power supply to convert the input power to the internal low voltage operating voltages and reduce the internal power dissipation. The power consumption is relatively constant, therefore the input current is inversely proportional to supply voltage, Vc. The max curre ...
... The CPCO incorporates a switching power supply to convert the input power to the internal low voltage operating voltages and reduce the internal power dissipation. The power consumption is relatively constant, therefore the input current is inversely proportional to supply voltage, Vc. The max curre ...
lesson topic 8.1 synchros and control
... and the top of the rotor is attracted to the bottom of the stationary coil. During the negative alternation (view B), the polarities of both coils reverse, thus keeping the rotor aligned in the same position. In summary, since both magnetic fields change direction at the same time when following the ...
... and the top of the rotor is attracted to the bottom of the stationary coil. During the negative alternation (view B), the polarities of both coils reverse, thus keeping the rotor aligned in the same position. In summary, since both magnetic fields change direction at the same time when following the ...
AC Generators - Nuclear Community
... Continuous Connection Brushes are spring-held in contact with the slip rings to provide a continuous connection between the field coil and excitation circuit, on a rotating field machine. Conductors Each time the rotor makes one complete revolution, one complete cycle of AC is developed. A generato ...
... Continuous Connection Brushes are spring-held in contact with the slip rings to provide a continuous connection between the field coil and excitation circuit, on a rotating field machine. Conductors Each time the rotor makes one complete revolution, one complete cycle of AC is developed. A generato ...
MAX1698/MAX1698A High-Efficiency Step-Up Current Regulator for LEDs General Description
... low, 300mV current-sense threshold. In the standard configuration, a feedback resistor, RFB, sets the current through the primary chain of LEDs. Additional chains of matching LEDs can be added with an equivalent resistor. In matched LED arrays, the secondary chain currents closely track the primary ...
... low, 300mV current-sense threshold. In the standard configuration, a feedback resistor, RFB, sets the current through the primary chain of LEDs. Additional chains of matching LEDs can be added with an equivalent resistor. In matched LED arrays, the secondary chain currents closely track the primary ...
Basis for Kelvin Contacts
... When device voltages are required to be measured very accurately, the Kelvin socket can be used to insure that inaccuracies caused by device current or interface resistances are minimized. An example of this is the need to measure the output voltage of a voltage regulator that is outputting a high c ...
... When device voltages are required to be measured very accurately, the Kelvin socket can be used to insure that inaccuracies caused by device current or interface resistances are minimized. An example of this is the need to measure the output voltage of a voltage regulator that is outputting a high c ...
idle speed control
... To comply with federal emissions standards, idle speed control systems are used Idle speed controlled by electronic module Earlier systems, engines idled in open loop Idle systems depend on inputs to PCM ...
... To comply with federal emissions standards, idle speed control systems are used Idle speed controlled by electronic module Earlier systems, engines idled in open loop Idle systems depend on inputs to PCM ...
Russian Regulators: Part VI for the Nippon-Denso 770
... Terminal Markings” IG (ignition) and L (lamp) Low/High Speed RPM Charge Point (lamp on/off): 450/ 600 rpm Rotor Speed • Ambient Operating Temperature (full load): -40°C to +135°C ...
... Terminal Markings” IG (ignition) and L (lamp) Low/High Speed RPM Charge Point (lamp on/off): 450/ 600 rpm Rotor Speed • Ambient Operating Temperature (full load): -40°C to +135°C ...
2615 4 Point Probe App Note.indd
... DMM or the Model 6514 Electrometer can measure the DC voltage drop. The voltmeter’s integration time should be set to 1 PLC (power line cycle). The magnitude of the AC current will depend on the resistivity of the material, but it should be large enough to forward-bias the diode. This method works w ...
... DMM or the Model 6514 Electrometer can measure the DC voltage drop. The voltmeter’s integration time should be set to 1 PLC (power line cycle). The magnitude of the AC current will depend on the resistivity of the material, but it should be large enough to forward-bias the diode. This method works w ...
Replacing Copper with New Carbon Nanomaterials in Electrical
... development of resource-efficient CNT winding machines. Carbon materials are among the most abundant materials on the Earth. As such, the presently high price of carbon-based conductors should decrease with the growth of industrial applications and commercial use. At present, the price of copper is ...
... development of resource-efficient CNT winding machines. Carbon materials are among the most abundant materials on the Earth. As such, the presently high price of carbon-based conductors should decrease with the growth of industrial applications and commercial use. At present, the price of copper is ...
UNIT 2 PPT
... The series element controls the amount of the input voltage that gets to the output. If the output voltage increases (or decreases), the comparator circuit provides a control signal to cause the series control element to decrease (or increase) the amount of the output voltage. ...
... The series element controls the amount of the input voltage that gets to the output. If the output voltage increases (or decreases), the comparator circuit provides a control signal to cause the series control element to decrease (or increase) the amount of the output voltage. ...
Losses in High Speed Permanent Magnet Machines Used
... stator loss, 共b兲 rotor eddy current loss, and 共c兲 windage loss. The stator loss consists of copper loss and iron loss. The copper loss includes conventional I2R loss and stray load loss due to skin effect and proximity effect. This can be calculated based on finite element analysis 共FEA兲 or using an ...
... stator loss, 共b兲 rotor eddy current loss, and 共c兲 windage loss. The stator loss consists of copper loss and iron loss. The copper loss includes conventional I2R loss and stray load loss due to skin effect and proximity effect. This can be calculated based on finite element analysis 共FEA兲 or using an ...
Voltage monitoring relays CM-ESS.2 For single-phase AC/DC voltages
... The voltage monitoring relays CM-ESS.2 are designed for use in single-phase AC and/or DC systems for over- or undervoltage monitoring as well as detection of phase loss. The devices are available with different supply voltage ranges, provide an adjustable tripping delay and work according to the ope ...
... The voltage monitoring relays CM-ESS.2 are designed for use in single-phase AC and/or DC systems for over- or undervoltage monitoring as well as detection of phase loss. The devices are available with different supply voltage ranges, provide an adjustable tripping delay and work according to the ope ...
Stepper motor
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.