GB890493A - Improvements in and relating to alternating current electric traction equipments including rectifiers - Google Patents
Improvements in and relating to alternating current electric traction equipments including rectifiersInfo
- Publication number
- GB890493A GB890493A GB1774257A GB1774257A GB890493A GB 890493 A GB890493 A GB 890493A GB 1774257 A GB1774257 A GB 1774257A GB 1774257 A GB1774257 A GB 1774257A GB 890493 A GB890493 A GB 890493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- rectifiers
- transformer
- mid
- point
- 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
- 238000010079 rubber tapping Methods 0.000 abstract 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 238000004804 winding Methods 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
- B60L9/02—Electric propulsion with power supply external to the vehicle using DC motors
- B60L9/08—Electric propulsion with power supply external to the vehicle using DC motors fed from AC supply lines
- B60L9/12—Electric propulsion with power supply external to the vehicle using DC motors fed from AC supply lines with static converters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
890,493. Rectifying; transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 2, 1958 [June 4, 1957], No. 17742/57. Class 38 (2). [Also in Group XXXVII] An electric traction equipment comprises motors M1, M2 series-connected and both supplied from a pair of rectifier systems connected through contacts C1 and C2 and contacts la, 16. . . 3a, 3b, to tappings on a transformer winding so that one rectifier system may be disconnected independently of the other to enable tap changing to be made. Contacts 4a to 6b connected to mid-point tappings on the transformer allow the mid-point of the motors to be maintained at the mid-point of the transformer secondary during tap changing. The rectifiers may be mercury arc rectifiers. The rectifiers include contacts C3 to C10 in series with the rectifier elements to enable either transformer to be isolated in the event of a fault. As an alternative embodiment these switches may be utilized instead of switches C1, C2, to disconnect one or other rectifier system from the supply. Specifications 827,722, 880,378, 890,494 and 890,495 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1774257A GB890493A (en) | 1957-06-04 | 1957-06-04 | Improvements in and relating to alternating current electric traction equipments including rectifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1774257A GB890493A (en) | 1957-06-04 | 1957-06-04 | Improvements in and relating to alternating current electric traction equipments including rectifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB890493A true GB890493A (en) | 1962-02-28 |
Family
ID=10100437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1774257A Expired GB890493A (en) | 1957-06-04 | 1957-06-04 | Improvements in and relating to alternating current electric traction equipments including rectifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB890493A (en) |
-
1957
- 1957-06-04 GB GB1774257A patent/GB890493A/en not_active Expired
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