KR890002160Y1 - 3상 전동기의 과전류 계전기 장치 - Google Patents
3상 전동기의 과전류 계전기 장치 Download PDFInfo
- Publication number
- KR890002160Y1 KR890002160Y1 KR2019860008984U KR860008984U KR890002160Y1 KR 890002160 Y1 KR890002160 Y1 KR 890002160Y1 KR 2019860008984 U KR2019860008984 U KR 2019860008984U KR 860008984 U KR860008984 U KR 860008984U KR 890002160 Y1 KR890002160 Y1 KR 890002160Y1
- Authority
- KR
- South Korea
- Prior art keywords
- output
- comparator
- gate
- transistor
- relay device
- 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
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/083—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for three-phase systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
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- 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
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/10—Commutator motors, e.g. repulsion motors
- H02P25/107—Polyphase or monophase commutator motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (1)
- 변류기(CT1-CT3)의 2차측에 전파정류기(1)를 연결하고 그 출력에 구성된 필터(2)의 오차검출용 가변저항(VR1)의 가동자는 병렬접속되어진 다이오드(D7, D8)와 평활콘덴서(C2, C3)를 통하여 비교기(3)(3')의 반전입력단자(-)에 각각 연결하고 비교기(3)의 출력은 반전기(4)와 다이오드(D9)를 통하여 계전기(RY) 스위칭용 에미터 접지 트랜지스터(Q1)의 베이스에 연결하고 비교기(3')의 출력에 연결된 반전기(4')의 출력은 앤드(AND)게이트(5)의 일측 입력에 연결함과 동시에 지연기(6)를 통하여 앤드(AND)게이트(5)의 타측 입력에 연결하여 그 출력은 다이오드(D10)를 통하여 트랜지스터(Q1)의 베이스에 연결하여서 됨을 특징으로 하는 3상 전동기의 과전류 계전기 장치.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860008984U KR890002160Y1 (ko) | 1986-06-25 | 1986-06-25 | 3상 전동기의 과전류 계전기 장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860008984U KR890002160Y1 (ko) | 1986-06-25 | 1986-06-25 | 3상 전동기의 과전류 계전기 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880001388U KR880001388U (ko) | 1988-03-15 |
| KR890002160Y1 true KR890002160Y1 (ko) | 1989-04-12 |
Family
ID=19252993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860008984U Expired KR890002160Y1 (ko) | 1986-06-25 | 1986-06-25 | 3상 전동기의 과전류 계전기 장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR890002160Y1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100293336B1 (en) * | 1995-07-04 | 2002-02-19 | Satake Eng Co Ltd | Flour mill |
-
1986
- 1986-06-25 KR KR2019860008984U patent/KR890002160Y1/ko not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100293336B1 (en) * | 1995-07-04 | 2002-02-19 | Satake Eng Co Ltd | Flour mill |
Also Published As
| Publication number | Publication date |
|---|---|
| KR880001388U (ko) | 1988-03-15 |
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