Synchronous Motor

Only available on StudyMode
  • Topic: Electric motor, AC motor, Induction motor
  • Pages : 7 (1188 words )
  • Download(s) : 26
  • Published : October 7, 2010
Open Document
Text Preview
| |

Synchronous Motor
Synchronous motors are like induction motors in that they both have stator windings that produce a rotating magnetic field. Unlike an induction motor, the synchronous motor is excited by an external DC source and, therefore, requires slip rings and brushes to provide current to the rotor. |[pic] |

In the synchronous motor, the rotor locks into step with the rotating magnetic field and rotates at synchronous speed. If the synchronous motor is loaded to the point where the rotor is pulled out of step with the rotating magnetic field, no torque is developed, and the motor will stop. A synchronous motor is not a self-starting motor because torque is only developed when running at synchronous speed; therefore, the motor needs some type of device to bring the rotor to synchronous speed. Synchronous motors use a wound rotor. This type of rotor contains coils of wire placed in the rotor slots. Slip rings and brushes are used to supply current to the rotor. • Synchronous Motor Starting

• Synchronous Motor Field Excitation

[pic]

Synchronous electric motor TECO Industrial Motors Applications

Applications:
Pulp and paper processing, electric utility, marine, water and wastewater treatment, chemical and petrochemical, steel, mining, air conditioning, and air separation.

Synchronous machines can be found wherever there is a demand for highly efficient, cost-effective, dependable machines. They are frequently used for chippers, mixers, generators, rolling, ball and sag mills, pulp (reprocating and centrifical) drives. They are also furnished with adjustable frequency drives (PWM, LCI, and Cyclo-converter) for soft starters or speed regulation. [pic]

Single-phase asynchronous electric motor TECO Industrial Motors Applications Type Code: BECY TOP
SinglePhaseInductionMotors
TEFC Low Voltage Squirrel Cage
Output 1 ~ 10 HP
Pole (Speed) 2, 4
Voltage 110/220V, 220V
Frequency (Hz) 50, 60
Frame Size 90S ~ 132M
Protection Enclosure IP 44
Environment: indoor
Cast Iron Frame and End Bracket.
Stator Insulation: 1 ~ 3HP Class E or B Insulation. 5 ~ 10HP Class F Insulation [pic]
Three-phase asynchronous electric motor TECO Industrial Motors Applications Type Code: AECD TOP
Standard 3-phase induction motors
TEAAC, Squirrel Cage
Output 350~1000HP (260 ~750 KW)
Pole (Speed) 2~ 10
Voltage 380V, 415V, 460V, 660V
Frequency (Hz) 50
Frame Size 400A~560C
Protection Enclosure IP 44
Type Code: AEEA / AEVA /AEEACF / AEEAFB / AEEAHD TOP$Standard 3-phase Induction Motors TEFC T-Frame Design B or C
Output 3/4 ~800HP
Pole (Speed) 2 ~ 12
Voltage 230/460V, 460V, 575V
Frequency (Hz) 60
Frame Size 143T~449T ~ 6810
Protection Enclosure IP 44

High-voltage asynchronous electric motor TECO Industrial Motors Applications [pic][pic]
Type Code: AECK/AEVE TOP
Standard 3-Phase Induction Motors
TEAAC High Voltage Crown Type Motors
Output 400~15,000HP (298 ~ 11,200 KW)
Pole (Speed) 2~ 12
Voltage 2200 ~ 6900V
Frequency (Hz) 50, 60
Frame Size 355 ~900
Protection Enclosure IP 55
Design Standards: IEC, BS, NEMA, CNS
Environment: non-hazardous

High efficiency asynchronous electric motor TECO Industrial Motors Applications [pic][pic]

Type Code: AEEANE TOP
Standard 3-Phase Low Voltage Induction Motors
TEFC, NEMA, T-Frame, Design B
Output 1 ~ 200HP
Pole (Speed) 2 ~ 6
Voltage 230/460V (208V De-Rating Operation), 460V, 575V
Frequency (Hz) 60
Frame Size 143T ~ 449
Protection Enclosure IP 44
Design Standard: NEMA MG-1, MG-13
Environment: non-hazardous
Stator Insulation: Class F Insulation.
ANSI/IEEE-112 Method B Test

[pic]
Explosion proof asynchronous electric motor TECO Industrial Motors Applications

Type Code: AEEAXU (NEMA)
AEEDXU (IEC)
Explosion-Proof Horizontal Foot-Mounted
Low Voltage Squirrel Cage Motors
TEFC, T-frame, NEMA Design B
Output 3/4~150 HP
Pole...
tracking img