JPS54154061A - Overcurrent relay - Google Patents
Overcurrent relayInfo
- Publication number
- JPS54154061A JPS54154061A JP6217378A JP6217378A JPS54154061A JP S54154061 A JPS54154061 A JP S54154061A JP 6217378 A JP6217378 A JP 6217378A JP 6217378 A JP6217378 A JP 6217378A JP S54154061 A JPS54154061 A JP S54154061A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- contact
- overload
- curve
- closed
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To provide an instantaneously overload time removing function at an overcurrent relay by assembling a meter relay with a stationary type overcurrent relay.
CONSTITUTION: A meter relay 6 is provided at a rectifying circuit 2. The contact 8 of the relay 6 and the overload protecting contact 7 of a stationary type overload current relay draw a curve between a current A and time t shown in a view. When the main circuit current of a motor crosses the curve, the contacts 7, 8 are closed. Accordingly, when an overload occurs at normal motor operating time, it initially crosses the curve 7a to cause the contact 7a to be closed. Thus, an auxiliary relay 9 is operated. If the load becomes further overload, it crosses the curve 8a to cause the contact 8 to be closed with the contact 7 to thereby operate an auxiliary relay 10.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6217378A JPS54154061A (en) | 1978-05-26 | 1978-05-26 | Overcurrent relay |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6217378A JPS54154061A (en) | 1978-05-26 | 1978-05-26 | Overcurrent relay |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54154061A true JPS54154061A (en) | 1979-12-04 |
Family
ID=13192460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6217378A Pending JPS54154061A (en) | 1978-05-26 | 1978-05-26 | Overcurrent relay |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54154061A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102118014A (en) * | 2010-11-26 | 2011-07-06 | 中国北方车辆研究所 | Adaptive load characteristic curve-based load over-current protection method |
-
1978
- 1978-05-26 JP JP6217378A patent/JPS54154061A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102118014A (en) * | 2010-11-26 | 2011-07-06 | 中国北方车辆研究所 | Adaptive load characteristic curve-based load over-current protection method |
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