GB754066A - Automatic load-dependent y-delta change-over system for electric induction motors - Google Patents
Automatic load-dependent y-delta change-over system for electric induction motorsInfo
- Publication number
- GB754066A GB754066A GB26685/54A GB2668554A GB754066A GB 754066 A GB754066 A GB 754066A GB 26685/54 A GB26685/54 A GB 26685/54A GB 2668554 A GB2668554 A GB 2668554A GB 754066 A GB754066 A GB 754066A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- delta
- motor
- change
- star
- 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
- 230000006698 induction Effects 0.000 title abstract 2
- 230000001419 dependent effect Effects 0.000 title 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
- H02P1/32—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star/delta switching
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
754,066. Control of A.C. motors. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Sept. 14, 1954 [Sept. 15, 1953], No. 26685/54. Class 38(3) An induction motor M is changed to the delta or star-connection when the load is increasing or decreasing by means of a change-over switch 2 which is actuated by a relay 4 of the watt-metric type. As shown, the single winding of the control relay is energized both in accordance with a phase current of the motor and in response to the voltage between two phases of the supply, the resultant energization being proportional to the wattful current of the motor. The relay 4 is of the time-delay type, and its armature may have an extension carrying adjustable abutments for effecting the switching operations of the relay, the arrangement being such that the change from star to delta-connection is made at a higher current-value than the change from delta to star. In addition, the relay 4 may be provided with a dash-pot. A two-pole switch 5 disables the relay 4 and enables the motor to be operated permanently in delta.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU754066X | 1953-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB754066A true GB754066A (en) | 1956-08-01 |
Family
ID=10980223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26685/54A Expired GB754066A (en) | 1953-09-15 | 1954-09-14 | Automatic load-dependent y-delta change-over system for electric induction motors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB754066A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2478399A1 (en) * | 1980-03-13 | 1981-09-18 | Borg Warner | CONTROL SYSTEM FOR INDUCTION ALTERNATIVE MOTORS |
FR2490037A1 (en) * | 1980-09-10 | 1982-03-12 | Lbm Presses | Electrically operated moulding press - has motor windings connected in star and triangle pattern during operating cycle to provide higher approach speed and greater force at low s |
US4691155A (en) * | 1979-04-06 | 1987-09-01 | Taylor Noel R | Automatic load seeking control for a motor |
CN102811018A (en) * | 2011-06-03 | 2012-12-05 | 西门子公司 | Asynchronous motor adopting star connection or delta connection related to load |
-
1954
- 1954-09-14 GB GB26685/54A patent/GB754066A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4691155A (en) * | 1979-04-06 | 1987-09-01 | Taylor Noel R | Automatic load seeking control for a motor |
FR2478399A1 (en) * | 1980-03-13 | 1981-09-18 | Borg Warner | CONTROL SYSTEM FOR INDUCTION ALTERNATIVE MOTORS |
FR2490037A1 (en) * | 1980-09-10 | 1982-03-12 | Lbm Presses | Electrically operated moulding press - has motor windings connected in star and triangle pattern during operating cycle to provide higher approach speed and greater force at low s |
CN102811018A (en) * | 2011-06-03 | 2012-12-05 | 西门子公司 | Asynchronous motor adopting star connection or delta connection related to load |
WO2012163433A3 (en) * | 2011-06-03 | 2013-04-25 | Siemens Aktiengesellschaft | Asynchronous motor with load-dependent star or delta connection |
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