Unit BS113 Electrical and Electronic Technology
... (ii) Why a 3-phase power supply is better than a single-phase one both for the electrical supply industry and for industrial electricity users. ...
... (ii) Why a 3-phase power supply is better than a single-phase one both for the electrical supply industry and for industrial electricity users. ...
Electromagnetism - juan-roldan
... permanent magnet. The stronger the electric current passing through the electromagnet, the more is interacts with the permanent magnet. ...
... permanent magnet. The stronger the electric current passing through the electromagnet, the more is interacts with the permanent magnet. ...
17511 Sample Question Paper
... a) Describe the principle of operation and working of a three-phase induction motor. b) Draw power stages of three phase induction motor. Derive relation for rotor copper loss. c) Compare salient pole and smooth cylindrical pole type alternators on the basis of Speed, rotor axial length, rotor diame ...
... a) Describe the principle of operation and working of a three-phase induction motor. b) Draw power stages of three phase induction motor. Derive relation for rotor copper loss. c) Compare salient pole and smooth cylindrical pole type alternators on the basis of Speed, rotor axial length, rotor diame ...
Electronic Soft Starters
... The performance of a soft starter is crucially dependent on the performance of the motor it controls. Therefore, it is essential to understand motor characteristics in order to understand soft starter applications. ...
... The performance of a soft starter is crucially dependent on the performance of the motor it controls. Therefore, it is essential to understand motor characteristics in order to understand soft starter applications. ...
Subsynchronous converter cascade SCC
... It is suitable where torque is comparatively low at low speeds, and the requirements regarding control dynamics are unexacting. Examples include the drives of • centrifugal compressors • blowers • rotating pumps In these cases the power is reduced to 1/8 of the rated value at half speed. This way of ...
... It is suitable where torque is comparatively low at low speeds, and the requirements regarding control dynamics are unexacting. Examples include the drives of • centrifugal compressors • blowers • rotating pumps In these cases the power is reduced to 1/8 of the rated value at half speed. This way of ...
Journal of Applied Science and Agriculture
... Today, most of applied turbines in wind farms are based on doubly-fed induction generators, because of superior features of this kind of generators. Some of these features include: capability of production in different speed (infra-synchronous and ultra- synchronous), ability of active and reactive ...
... Today, most of applied turbines in wind farms are based on doubly-fed induction generators, because of superior features of this kind of generators. Some of these features include: capability of production in different speed (infra-synchronous and ultra- synchronous), ability of active and reactive ...
EM41_S_MN_R1
... No, nothing is free – you had to put energy into the system by turning the rotor to generate the voltage. When a motor like this is used to create an electric current it is called a generator because it generates electricity. This is similar to the alternator in automobiles. Can you guess what is di ...
... No, nothing is free – you had to put energy into the system by turning the rotor to generate the voltage. When a motor like this is used to create an electric current it is called a generator because it generates electricity. This is similar to the alternator in automobiles. Can you guess what is di ...
25471_energy_conversion_17
... load. In this range rotor resistance is much larger than its reactance so rotor current, rotor magnetic field & induced torque increase linearly with increasing slip 3- there is a maximum possible torque that cannot be exceeded (pullout torque) is 2 to 3 times rated full-load torque of motor (calcul ...
... load. In this range rotor resistance is much larger than its reactance so rotor current, rotor magnetic field & induced torque increase linearly with increasing slip 3- there is a maximum possible torque that cannot be exceeded (pullout torque) is 2 to 3 times rated full-load torque of motor (calcul ...
Pretest 13 (EMF) - University of Colorado Boulder
... c) Front d) Rear e) Other f) Not enough information Please explain your answers to the previous 2 questions briefly but clearly: ...
... c) Front d) Rear e) Other f) Not enough information Please explain your answers to the previous 2 questions briefly but clearly: ...
