Supplementary Protectors (UL1077 mini circuit breakers) 3
... Branch circuit overcurrent protective devices (OCPD) can be used everywhere OCPD are used, from protection of motors and motor circuits and group motor circuits, to protection of distribution and utilization equipment. Supplemental OCPD can only be used where proper protection is already being provi ...
... Branch circuit overcurrent protective devices (OCPD) can be used everywhere OCPD are used, from protection of motors and motor circuits and group motor circuits, to protection of distribution and utilization equipment. Supplemental OCPD can only be used where proper protection is already being provi ...
II 777 HVR SP B Installation Instructions
... such as motor usage, motor size, environmental factors and tolerance of the motor. The motor manufacturer should be consulted for "HV" and "LV" settings. However, the NEMA MG1 standard recommends that "LV" and "HV" be set to no more than ±10% of the motor's nameplate voltage. The setting can be dete ...
... such as motor usage, motor size, environmental factors and tolerance of the motor. The motor manufacturer should be consulted for "HV" and "LV" settings. However, the NEMA MG1 standard recommends that "LV" and "HV" be set to no more than ±10% of the motor's nameplate voltage. The setting can be dete ...
model p626/726 - Samuel Strapping Systems
... t Easy PC board replacement. All operating functions such as strap feed, strap tension and heater bar temperature are controlled by a printed circuit board. In the event of a circuit failure, replacement is a quick and easy operation. if not used within t Automatic motor 60 seconds. ers instant resu ...
... t Easy PC board replacement. All operating functions such as strap feed, strap tension and heater bar temperature are controlled by a printed circuit board. In the event of a circuit failure, replacement is a quick and easy operation. if not used within t Automatic motor 60 seconds. ers instant resu ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... and so on the control algorithms determine the gate signal to each semiconductor in the power electronic converter. The structure of the control algorithms determines the type of the brush less dc motor of which there are two main classes voltage source based drives and current source based drives. ...
... and so on the control algorithms determine the gate signal to each semiconductor in the power electronic converter. The structure of the control algorithms determines the type of the brush less dc motor of which there are two main classes voltage source based drives and current source based drives. ...
EE 1281721
... drives are being used widely. One of the most popular approaches is a generalized harmonic injection [1]. In high speed applications like traction, the primary concern of drives is to obtain a low frequency and ripple free torque and even flux control. For such applications, a great deal of study ha ...
... drives are being used widely. One of the most popular approaches is a generalized harmonic injection [1]. In high speed applications like traction, the primary concern of drives is to obtain a low frequency and ripple free torque and even flux control. For such applications, a great deal of study ha ...
Catheter Guidewire Control System
... ME’s. – They returned voltage vs. curvature data for both types of polymer ...
... ME’s. – They returned voltage vs. curvature data for both types of polymer ...
2014 Influence of Discrete Inductance Curves on The Simulation of a Round Rotor Generator Using Coupled Circuit Method
... tabulated values. The Fourier transformation approach allows an exact solution to the inductance derivative that may be used in the time-stepping simulation. This eases the use of classical integration techniques available in MatlabSimulink. ...
... tabulated values. The Fourier transformation approach allows an exact solution to the inductance derivative that may be used in the time-stepping simulation. This eases the use of classical integration techniques available in MatlabSimulink. ...
Reduced Power Electronic Componets Using a New Cascade
... causing the rotor to spin. A slip is created between these fields, when a load is applied to the motor. Compared to the synchronous speed, the rotor speed decreases, at higher slip values. The frequency of the stator voltage controls the synchronous speed [12]. The frequency of the voltage is applie ...
... causing the rotor to spin. A slip is created between these fields, when a load is applied to the motor. Compared to the synchronous speed, the rotor speed decreases, at higher slip values. The frequency of the stator voltage controls the synchronous speed [12]. The frequency of the voltage is applie ...
Experiment 4 - Portal UniMAP
... connected in series with the electromagnet winding can be used to vary the field current. Figure 4.1 illustrates how the speed versus armature voltage of a separatelyexcited dc motor is affected when the field current is decreased below its nominal value. Constant K1 becomes greater. This means that ...
... connected in series with the electromagnet winding can be used to vary the field current. Figure 4.1 illustrates how the speed versus armature voltage of a separatelyexcited dc motor is affected when the field current is decreased below its nominal value. Constant K1 becomes greater. This means that ...
LF 205-S
... ●● IS is positive when IP flows in the direction of the arrow. ●● Temperature of the primary conductor should not exceed 100 °C. ●● Dynamic performances (di/dt and response time) are best with a single bar completely filling the primary hole. ●● This is a standard model. For different versions (supp ...
... ●● IS is positive when IP flows in the direction of the arrow. ●● Temperature of the primary conductor should not exceed 100 °C. ●● Dynamic performances (di/dt and response time) are best with a single bar completely filling the primary hole. ●● This is a standard model. For different versions (supp ...
Discrete-time AC motor control apparatus
... rent motor, an angle of a rotor of the motor is required to be sensed for a feedback of information of the rotor ...
... rent motor, an angle of a rotor of the motor is required to be sensed for a feedback of information of the rotor ...
Neutral zone - Schunk Carbon Technology
... commutation takes place. But life is not that simple! Due to the self induced e.m.f. and changes in load, the situation is somewhat more involved and beyond the scope of this article. In the end however, electrical neutral must be properly set to assure good commutation and good brush life. ...
... commutation takes place. But life is not that simple! Due to the self induced e.m.f. and changes in load, the situation is somewhat more involved and beyond the scope of this article. In the end however, electrical neutral must be properly set to assure good commutation and good brush life. ...
Induction motor
An induction or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor therefore does not require mechanical commutation, separate-excitation or self-excitation for all or part of the energy transferred from stator to rotor, as in universal, DC and large synchronous motors. An induction motor's rotor can be either wound type or squirrel-cage type.Three-phase squirrel-cage induction motors are widely used in industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFDs) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel cage induction motors are very widely used in both fixed-speed and variable-frequency drive (VFD) applications. Variable voltage and variable frequency drives are also used in variable-speed service.