Duplex Pump Control Panels
... a sustained overload occurs. Tripping class of these overloads is according to UL 508 and IEC 947-4. These overloads are designed to operate from 0 to 400 Hz and are available to cover a wide range of full-load motor currents. The overloads offer manual or automatic reset and are designed to protect ...
... a sustained overload occurs. Tripping class of these overloads is according to UL 508 and IEC 947-4. These overloads are designed to operate from 0 to 400 Hz and are available to cover a wide range of full-load motor currents. The overloads offer manual or automatic reset and are designed to protect ...
ABB drives - Technical guide No. 7
... Chapter 4 - Induction (AC) motor.............................................................11 4.1 Fundamentals .............................................................................11 4.2 Motor current .............................................................................13 ...
... Chapter 4 - Induction (AC) motor.............................................................11 4.1 Fundamentals .............................................................................11 4.2 Motor current .............................................................................13 ...
BX26501512
... properties at high frequency and the current model estimator has good properties at low frequency, various ways have been tried to combine them. A straightforward way of combination is adopted [4] using a low pass filter where the current model estimator and the voltage model estimator are selected ...
... properties at high frequency and the current model estimator has good properties at low frequency, various ways have been tried to combine them. A straightforward way of combination is adopted [4] using a low pass filter where the current model estimator and the voltage model estimator are selected ...
DRM086, Sensorless BLDC Motor Control Using MC9S08AW60
... BLDC motors are very popular in a wide application area. Because the BLDC motor lacks a commutator, it is more reliable than the DC motor. The BLDC motor also has advantages when compared to an AC induction motor. Because it achieves a higher efficiency by generating the rotor magnetic flux with rot ...
... BLDC motors are very popular in a wide application area. Because the BLDC motor lacks a commutator, it is more reliable than the DC motor. The BLDC motor also has advantages when compared to an AC induction motor. Because it achieves a higher efficiency by generating the rotor magnetic flux with rot ...
Compumotor P Series Drive Operations Manual
... The P-Drive has ''L'' brackets notched to accept screws on either end to facilitate mounting to flat panel surfaces. The unit should be securely mounted to prevent it from moving unexpectedly, as this could cause an unsafe condition to occur, and could lead to damage to the P-Drive. The P-Drive shou ...
... The P-Drive has ''L'' brackets notched to accept screws on either end to facilitate mounting to flat panel surfaces. The unit should be securely mounted to prevent it from moving unexpectedly, as this could cause an unsafe condition to occur, and could lead to damage to the P-Drive. The P-Drive shou ...
DEE 403 Electrical Machines II
... . high-performance permanent magnet alternators, such as those used for bicycle lighting systems, achieve an efficiency around ~60%. Larger permanent magnet alternators can achieve much higher efficiency.By contrast, the large AC generators used in power stations run at carefully controlled speeds a ...
... . high-performance permanent magnet alternators, such as those used for bicycle lighting systems, achieve an efficiency around ~60%. Larger permanent magnet alternators can achieve much higher efficiency.By contrast, the large AC generators used in power stations run at carefully controlled speeds a ...
SMC Controllers with Pump Control
... Pressure surges stress the walls of the pipe and cause an audible noise. The sound is as if the pipe was struck with a mallet repeatedly. The noise is responsible for the term “water hammering” or “hammering” being applied to this phenomenon. The sound created is trivial when compared to the physica ...
... Pressure surges stress the walls of the pipe and cause an audible noise. The sound is as if the pipe was struck with a mallet repeatedly. The noise is responsible for the term “water hammering” or “hammering” being applied to this phenomenon. The sound created is trivial when compared to the physica ...
BTPWE 504 Electrical Machines II
... . high-performance permanent magnet alternators, such as those used for bicycle lighting systems, achieve an efficiency around ~60%. Larger permanent magnet alternators can achieve much higher efficiency.By contrast, the large AC generators used in power stations run at carefully controlled speeds a ...
... . high-performance permanent magnet alternators, such as those used for bicycle lighting systems, achieve an efficiency around ~60%. Larger permanent magnet alternators can achieve much higher efficiency.By contrast, the large AC generators used in power stations run at carefully controlled speeds a ...
Generic Service Preso
... The system is probably being controlled by a thermostat that uses solid state relays or triacs as output switches. The current leaking through such switches can cause a voltage level to appear on the ECM Motor’s terminals that make it react as if the thermostat is actually calling. Another cause cou ...
... The system is probably being controlled by a thermostat that uses solid state relays or triacs as output switches. The current leaking through such switches can cause a voltage level to appear on the ECM Motor’s terminals that make it react as if the thermostat is actually calling. Another cause cou ...
Trade of Motor Mechanic Module 2
... battery. It is designed to have high turning effort at low speeds. During engine cranking excessive current draw will lead to the cables becoming hot and a drop in battery voltage. ...
... battery. It is designed to have high turning effort at low speeds. During engine cranking excessive current draw will lead to the cables becoming hot and a drop in battery voltage. ...
ELECTRICIAN_New_Syll
... Free hand sketching of nuts & Standard algebraic formula and bolts with dimensions from related problems. samples. Moment of a force Couple and Torque. Related Free hand sketching of rivets problems and washers with dimensions from samples. ...
... Free hand sketching of nuts & Standard algebraic formula and bolts with dimensions from related problems. samples. Moment of a force Couple and Torque. Related Free hand sketching of rivets problems and washers with dimensions from samples. ...
High-Efficiency Pumps
... Incorrect rotation will damage the pump and void the warranty! For 3-phase power, electrically check rotation of impeller with volute disassembled from bracket. If pump end is assembled and rotation is incorrect, serious damage to pump end assembly will occur even if the switch is "quickly bumped." ...
... Incorrect rotation will damage the pump and void the warranty! For 3-phase power, electrically check rotation of impeller with volute disassembled from bracket. If pump end is assembled and rotation is incorrect, serious damage to pump end assembly will occur even if the switch is "quickly bumped." ...
Chapter06_Control_relays - PTEC107 AC/DC Electronics
... The PLC's original purpose was the replacement of electromagnetic relays with a solid-state switching system that could be programmed. The programmable controller was designed to replace physically small control relays that make logic decisions but are not designed to handle heavy current or high vo ...
... The PLC's original purpose was the replacement of electromagnetic relays with a solid-state switching system that could be programmed. The programmable controller was designed to replace physically small control relays that make logic decisions but are not designed to handle heavy current or high vo ...
Investigation of DC Motors for Electric and Hybrid Electric Motor
... electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. AC motors, complex electronic controllers and complex battery management systems are currently used in electric (EV) and hybrid vehicles. This research examines various motors and ...
... electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. AC motors, complex electronic controllers and complex battery management systems are currently used in electric (EV) and hybrid vehicles. This research examines various motors and ...
Institutionen för systemteknik Department of Electrical Engineering Modeling and Control of Electromechanical
... 7.1.2 Motor with throttle, using pole-placement . . . . . 7.1.3 Motor with throttle, using hand-tuned parameters ...
... 7.1.2 Motor with throttle, using pole-placement . . . . . 7.1.3 Motor with throttle, using hand-tuned parameters ...
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.