doubly fed induction generator in a wind turbine
... There are two ways to control the reactive power in a doubly fed induction generator. The grid side converter can work as a STATCOM and the rotor side converter can control the reactive power at the stator through the ird-axis current. Normally the d-axis rotor current will regulate the reactive pow ...
... There are two ways to control the reactive power in a doubly fed induction generator. The grid side converter can work as a STATCOM and the rotor side converter can control the reactive power at the stator through the ird-axis current. Normally the d-axis rotor current will regulate the reactive pow ...
High efficiency electric drives for EV
... As such they have no commutator, and tend to be more efficient and more powerful than commutated motors. They do require a more complicated motor controller, although as the technology matures and costs come down they are becoming increasingly popular, particularly for smaller EV. ...
... As such they have no commutator, and tend to be more efficient and more powerful than commutated motors. They do require a more complicated motor controller, although as the technology matures and costs come down they are becoming increasingly popular, particularly for smaller EV. ...
6 S PWM Servo Technical Manual
... Installing this jumper the servo will follow an external 0-5V control, and not the R/C signal if present. An external potentiometer wiper, or an analog input voltage, is connected to the card-edge connector pin A8. The bottom of the potentiometer or the ground reference of the analog input is connec ...
... Installing this jumper the servo will follow an external 0-5V control, and not the R/C signal if present. An external potentiometer wiper, or an analog input voltage, is connected to the card-edge connector pin A8. The bottom of the potentiometer or the ground reference of the analog input is connec ...
RS-485 for Digital Motor Control Applications
... This discussion focuses on the benefits of using RS-485 signaling for motor control and motion control applications. As discussed below, this technology has several benefits for these applications in terms of noise immunity, wide common-mode voltage range, adequate data rate, and multipoint capabili ...
... This discussion focuses on the benefits of using RS-485 signaling for motor control and motion control applications. As discussed below, this technology has several benefits for these applications in terms of noise immunity, wide common-mode voltage range, adequate data rate, and multipoint capabili ...
HV PRO BASIC SET-UP GUIDE
... the One-Touch/SET button or from disassembling case, tampering with internal electronics, allowing water, moisture, or any other foreign material to enter ESC or get onto the PC board, incorrect installation/wiring of input plug plastic, allowing exposed wiring or solder tabs to short-circuit, or an ...
... the One-Touch/SET button or from disassembling case, tampering with internal electronics, allowing water, moisture, or any other foreign material to enter ESC or get onto the PC board, incorrect installation/wiring of input plug plastic, allowing exposed wiring or solder tabs to short-circuit, or an ...
Review on Fault Diagnosis in Three-Phase
... insulation loses its physical integrity, its resistance to other dielectric, mechanical and environmental stress reduces. By reducing the operating temperature, or by increasing the grade of insulating material used, thermal aging can be minimised. During start-up, stator current is five to eight ti ...
... insulation loses its physical integrity, its resistance to other dielectric, mechanical and environmental stress reduces. By reducing the operating temperature, or by increasing the grade of insulating material used, thermal aging can be minimised. During start-up, stator current is five to eight ti ...
Combination Motor Control Units
... auxiliary devices when used. The disconnecting means and branch-circuit overcurrent protection shall consist of a fusible disconnecting device or circuit breaker. If the latter is used, it shall either be an inverse time (thermal-magnetic or dual magnetic) or an instantaneous magnetic type. The moto ...
... auxiliary devices when used. The disconnecting means and branch-circuit overcurrent protection shall consist of a fusible disconnecting device or circuit breaker. If the latter is used, it shall either be an inverse time (thermal-magnetic or dual magnetic) or an instantaneous magnetic type. The moto ...
Date: - ibookfi.com
... suitable for one voltage range (see Table 1). The first part winding (2/3) on terminals 1-2-3 can be used for part winding start. After a time delay of 1 ± 0.1 seconds, the second part winding, the 1/3 winding on terminals 7-8-9 must be brought on line. The part winding motor can be regarded as two ...
... suitable for one voltage range (see Table 1). The first part winding (2/3) on terminals 1-2-3 can be used for part winding start. After a time delay of 1 ± 0.1 seconds, the second part winding, the 1/3 winding on terminals 7-8-9 must be brought on line. The part winding motor can be regarded as two ...
CHRISTU JYOTI INSTITUTE OF TECHNOLOGY & SCIENCE LABORATORY MANUAL 2013-14 1
... After completing the load-test, suck out the water in the brake-drum using the plastic bottle with nozzle and then dry off the drum with a sponge which is available in the laboratory.(The water, if allowed to remain in the brake-drum, will corrode it) ammeters and watt-meters in case of over load, a ...
... After completing the load-test, suck out the water in the brake-drum using the plastic bottle with nozzle and then dry off the drum with a sponge which is available in the laboratory.(The water, if allowed to remain in the brake-drum, will corrode it) ammeters and watt-meters in case of over load, a ...
G201X / G210X User Manual
... when connecting or disconnecting the motor. If the motor turns in the wrong direction, reverse the motor winding connections to terminals 3 and 4. CAUTION! Do not short the motor leads to each other or to ground; damage will result to the G201X. 4-wire, 6-wire and 8-wire motor may be used. When 6-wi ...
... when connecting or disconnecting the motor. If the motor turns in the wrong direction, reverse the motor winding connections to terminals 3 and 4. CAUTION! Do not short the motor leads to each other or to ground; damage will result to the G201X. 4-wire, 6-wire and 8-wire motor may be used. When 6-wi ...
Simulation of Induction Motor Characteristics Using A Circle Diagram
... All motor’s performances, which determine its condition (starting, operating and control) is possible to obtain from experiments. But to do so, it is necessary to have corresponding equipment, a lot of time and energy, especially for high-power motors. That reasons causes difficulties for calculatio ...
... All motor’s performances, which determine its condition (starting, operating and control) is possible to obtain from experiments. But to do so, it is necessary to have corresponding equipment, a lot of time and energy, especially for high-power motors. That reasons causes difficulties for calculatio ...
MASTERDRIVE Compact Plus
... The Compact Plus is a member of the MASTERDRIVE product line. The Compact Plus offers many of the same features as the larger MASTERDRIVE products in a smaller package. Compact Plus drives are available in ratings from 1 to 25 HP. The Compact Plus is ideally suited for applications requiring high pe ...
... The Compact Plus is a member of the MASTERDRIVE product line. The Compact Plus offers many of the same features as the larger MASTERDRIVE products in a smaller package. Compact Plus drives are available in ratings from 1 to 25 HP. The Compact Plus is ideally suited for applications requiring high pe ...
DR34722727
... analyzed and so a snubber circuit is implemented. snubbers are used in electrical systems to reduce the transient across the device while switching ON/OFF the device. While having a transient this may cause electromagnetic disturbance which in turn creates interference with nearby circuits ( Muhamma ...
... analyzed and so a snubber circuit is implemented. snubbers are used in electrical systems to reduce the transient across the device while switching ON/OFF the device. While having a transient this may cause electromagnetic disturbance which in turn creates interference with nearby circuits ( Muhamma ...
sinamics s What is your drive? Simply get started? SINAMICS GM150: The uncomplicated
... The intelligent maintenance functions of the SINAMICS GM150 prevent non-scheduled downtimes with loss of production and costly repair service calls, since components automatically indicate when service is required. For instance, in air-cooled SINAMICS GM150 converters a differential pressure monitor ...
... The intelligent maintenance functions of the SINAMICS GM150 prevent non-scheduled downtimes with loss of production and costly repair service calls, since components automatically indicate when service is required. For instance, in air-cooled SINAMICS GM150 converters a differential pressure monitor ...
motors for copeland™ semi-hermetic compressors
... suitable for one voltage range (see Table 1). The first part winding (2/3) on terminals 1-2-3 can be used for part winding start. After a time delay of 1 ± 0.1 seconds, the second part winding, the 1/3 winding on terminals 7-8-9 must be brought on line. The part winding motor can be regarded as two ...
... suitable for one voltage range (see Table 1). The first part winding (2/3) on terminals 1-2-3 can be used for part winding start. After a time delay of 1 ± 0.1 seconds, the second part winding, the 1/3 winding on terminals 7-8-9 must be brought on line. The part winding motor can be regarded as two ...
Photo 7: Stator coils can be independently tested
... activity within the slot. PD is one of the main failure modes of the insulation in rotating machines, making it a good indicator of normal service life expectancy. The resin rich coil uses a thermosetting epoxy resin infused mica tape for the slot while the resin for the end-windings contains a flex ...
... activity within the slot. PD is one of the main failure modes of the insulation in rotating machines, making it a good indicator of normal service life expectancy. The resin rich coil uses a thermosetting epoxy resin infused mica tape for the slot while the resin for the end-windings contains a flex ...
edc-module_ia-dc_generator
... In general, three characteristics specify the steady-state performance of a DC generators: 1. Open-circuit characteristics: generated voltage versus field current at constant speed. 2. External characteristic: terminal voltage versus load current at constant speed. 3. Load characteristic: terminal v ...
... In general, three characteristics specify the steady-state performance of a DC generators: 1. Open-circuit characteristics: generated voltage versus field current at constant speed. 2. External characteristic: terminal voltage versus load current at constant speed. 3. Load characteristic: terminal v ...
ucn5804b
... together. This is now the common lead to connect to the + pad just as in the 6 lead case. The remaining leads are A & B and C & D to the PCB.. Now there are 1, possibly 2, complications. First the common connection must join the coils in the opposite sense. This refers to the way in which they are w ...
... together. This is now the common lead to connect to the + pad just as in the 6 lead case. The remaining leads are A & B and C & D to the PCB.. Now there are 1, possibly 2, complications. First the common connection must join the coils in the opposite sense. This refers to the way in which they are w ...
Detailed Design Review Presentation
... measure the output voltage and current. • Pass/Fail Criteria – Voltage = 4.8 to 6V, Current = at most 500mA 2. Motor Power Distribution Board • Values to be tested - Output Voltage and Current for considered loads, (DC Motors, Servo Motors, Motor Drivers). • Method for testing - Connect a multimeter ...
... measure the output voltage and current. • Pass/Fail Criteria – Voltage = 4.8 to 6V, Current = at most 500mA 2. Motor Power Distribution Board • Values to be tested - Output Voltage and Current for considered loads, (DC Motors, Servo Motors, Motor Drivers). • Method for testing - Connect a multimeter ...
Brushless DC electric motor
Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. In this context, AC, alternating current, does not imply a sinusoidal waveform, but rather a bi-directional current with no restriction on waveform. Additional sensors and electronics control the inverter output amplitude and waveform (and therefore percent of DC bus usage/efficiency) and frequency (i.e. rotor speed).The rotor part of a brushless motor is often a permanent magnet synchronous motor, but can also be a switched reluctance motor, or induction motor.Brushless motors may be described as stepper motors; however, the term stepper motor tends to be used for motors that are designed specifically to be operated in a mode where they are frequently stopped with the rotor in a defined angular position. This page describes more general brushless motor principles, though there is overlap.Two key performance parameters of brushless DC motors are the motor constants Kv and Km.