GB719654A - Improvements in or relating to control arrangements for electric locomotives - Google Patents
Improvements in or relating to control arrangements for electric locomotivesInfo
- Publication number
- GB719654A GB719654A GB909552A GB909552A GB719654A GB 719654 A GB719654 A GB 719654A GB 909552 A GB909552 A GB 909552A GB 909552 A GB909552 A GB 909552A GB 719654 A GB719654 A GB 719654A
- Authority
- GB
- United Kingdom
- Prior art keywords
- traction motors
- machine
- generator
- motors
- traction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003137 locomotive effect Effects 0.000 title 1
- 238000004804 winding Methods 0.000 abstract 4
- 241000555745 Sciuridae Species 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L9/00—Electric propulsion with power supply external to the vehicle
- B60L9/16—Electric propulsion with power supply external to the vehicle using AC induction motors
- B60L9/24—Electric propulsion with power supply external to the vehicle using AC induction motors fed from AC supply lines
- B60L9/28—Electric propulsion with power supply external to the vehicle using AC induction motors fed from AC supply lines polyphase motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/10—Electrical machine types
- B60L2220/14—Synchronous machines
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
719,654. Control of A.C. motors. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. April 9, 1953 [April 9, 1952], No. 9095/52. Class 38(3) A traction system comprises a synchronous motor 15 which also acts as a phase converter and drives a variable speed frequency converter machine 21 having windings supplied with three phase current from the machine 15 and other windings arranged to supply traction motors 25. The traction motors may be of the squirrel cage induction type and are adapted for pole-changing. The motor 15 may drive the frequency changer 21 directly or through an electrical transmission comprising a Ward Leonard generator 16 and motor 20, the generator having a boosting or bucking exciter 50 controlled by a reversing potentiometer 30, 31. An auxiliary frequency converter machine 70 is mechanically coupled to one of the traction motors and has stator windings fed from the supply to these motors. The machine 70 is shown as connected to a pole changing switch 90 so that the number of poles of the machines 25 and 70 are changed simultaneously. The output of the auxiliary frequency converter, which is dependent upon the slip of the traction motor, is applied to a hysteresis motor 71 driving a direct-current tachometer generator 72. A field winding 52 of the exciter 50 is connected to the generator 72 and exerts a modifying influence on the excitation of the direct-current generator 16 tending to reduce the slip of the traction motors. The output of the tachometer generator 72 is also applied to a safety device 91 which may consist of a relay arrangement permitting the traction motors to be connected to the frequency converter only when the output of the tachometer generator is small. In this manner, the traction motors are not energized unless the output frequency of the machine 21 corresponds closely with the speed of the traction motors. The auxiliary frequency converter 70 may be replaced by a number of separate machines of fixed pole numbers, an appropriate auxiliary machine being selected according to the number of poles for which the traction motors are connected. Specification 719,652 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909552A GB719654A (en) | 1952-04-09 | 1952-04-09 | Improvements in or relating to control arrangements for electric locomotives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909552A GB719654A (en) | 1952-04-09 | 1952-04-09 | Improvements in or relating to control arrangements for electric locomotives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB719654A true GB719654A (en) | 1954-12-08 |
Family
ID=9865255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB909552A Expired GB719654A (en) | 1952-04-09 | 1952-04-09 | Improvements in or relating to control arrangements for electric locomotives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB719654A (en) |
-
1952
- 1952-04-09 GB GB909552A patent/GB719654A/en not_active Expired
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