GB1331260A - Braking of rotary electrical machines - Google Patents
Braking of rotary electrical machinesInfo
- Publication number
- GB1331260A GB1331260A GB1331260DA GB1331260A GB 1331260 A GB1331260 A GB 1331260A GB 1331260D A GB1331260D A GB 1331260DA GB 1331260 A GB1331260 A GB 1331260A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- contacts
- braking
- motor
- brake
- 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
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000000994 depressogenic effect Effects 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000006698 induction Effects 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
- H02P3/24—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by applying DC to the motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
1331260 Braking AC motors J & T ELECTRICAL CONTROLS Ltd 14 May 1971 [15 May 1970] 23545/70 Heading H2J An induction motor is connected to a 3-phase supply 18, 20, 22 through line contacts 38, and to a D.C. braking supply through braking contacts 36 for a time determined by a capacitor C1 discharging through a relay R, the line and brake contacts being interlocked when the motor is running so that when one set is open the other is closed. To start and run the motor (not shown), button ST is depressed energizing relay MR, closing line contacts 38, and opening contact MR3 to ensure relay BR is not energized and thus brake contacts 36 remain open. Provided the D.C. braking supply functions correctly, relay R is energized, holding relay MR energized when button ST is released, capacitor C1, across relay R, charging. To brake the motor, button SP is depressed, relay MR de-energizes, relay BR energizes opening contacts BR1 and line contacts 38, and closing brake contacts 36. Whilst Cl discharges, holding relay R energized, D.C. braking current is applied to motor terminals 14, 16, then relay R de-energizes, contact R1 opens, relay BR de-energizes and brake contacts 36 open.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2354570 | 1970-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1331260A true GB1331260A (en) | 1973-09-26 |
Family
ID=10197394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1331260D Expired GB1331260A (en) | 1970-05-15 | 1970-05-15 | Braking of rotary electrical machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1331260A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042123A1 (en) * | 1980-06-13 | 1981-12-23 | Pt Components, Inc. | Electronic motor braking system |
| CN113839585A (en) * | 2021-10-19 | 2021-12-24 | 苏州伟创电气科技股份有限公司 | Brake control circuit, device and equipment |
-
1970
- 1970-05-15 GB GB1331260D patent/GB1331260A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042123A1 (en) * | 1980-06-13 | 1981-12-23 | Pt Components, Inc. | Electronic motor braking system |
| CN113839585A (en) * | 2021-10-19 | 2021-12-24 | 苏州伟创电气科技股份有限公司 | Brake control circuit, device and equipment |
| CN113839585B (en) * | 2021-10-19 | 2024-04-02 | 苏州伟创电气科技股份有限公司 | Brake control circuit, device and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |