JPS56101387A - Preliminary exciter - Google Patents
Preliminary exciterInfo
- Publication number
- JPS56101387A JPS56101387A JP271480A JP271480A JPS56101387A JP S56101387 A JPS56101387 A JP S56101387A JP 271480 A JP271480 A JP 271480A JP 271480 A JP271480 A JP 271480A JP S56101387 A JPS56101387 A JP S56101387A
- Authority
- JP
- Japan
- Prior art keywords
- current
- triac
- transformer
- winding
- preliminary
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 abstract 8
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
- H02P3/08—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 a DC motor
- H02P3/12—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 a DC motor by short-circuit or resistive braking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
PURPOSE:To control the preliminary exciting current with a small capacity switch by conducting a triac connected to the primary winding of a transformer and applying the preliminary exciting current to a field winding connected to the secondary winding of the transformer through a rectifying circuit. CONSTITUTION:When the transformer 1 is connected to a power source, a switch 4 is closed in this state and a current flows through the gate of the triac 2, the triac 2 is conducted, and the primary winding 1a is energized by the current from the power source. Thus, the output generated at the secondary winding 1b is rectified by the rectifier 5 and the rectified current is applied as predetermined preliminary exciting current through a current limiting resistor 8 to the field winding 7. When the switch 4 is opened, the gate current of the triac 2 is interrupted, the triac 2 recovers the interrupted state when the AC inverts to thus stop the application of the current to the primary winding 1a of the transformer 1, thereby stopping the supply of the current to the field winding 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP271480A JPS56101387A (en) | 1980-01-14 | 1980-01-14 | Preliminary exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP271480A JPS56101387A (en) | 1980-01-14 | 1980-01-14 | Preliminary exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56101387A true JPS56101387A (en) | 1981-08-13 |
Family
ID=11536966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP271480A Pending JPS56101387A (en) | 1980-01-14 | 1980-01-14 | Preliminary exciter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56101387A (en) |
-
1980
- 1980-01-14 JP JP271480A patent/JPS56101387A/en active Pending
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