JPS55138121A - Electric power switching unit - Google Patents
Electric power switching unitInfo
- Publication number
- JPS55138121A JPS55138121A JP4526579A JP4526579A JPS55138121A JP S55138121 A JPS55138121 A JP S55138121A JP 4526579 A JP4526579 A JP 4526579A JP 4526579 A JP4526579 A JP 4526579A JP S55138121 A JPS55138121 A JP S55138121A
- Authority
- JP
- Japan
- Prior art keywords
- power
- load
- temporary
- long
- output
- 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
- Control Of Voltage And Current In General (AREA)
Abstract
PURPOSE: To suppress working power to less than load power by feeding the power to only a load in temporary operation by opening a switch circuit on detecting the power feed of a power output circuit during the temporary operation of the load, and then by restarting the power supply to the load for a long period of time with the load stopped from operating.
CONSTITUTION: Power outputs 2, 3 are branched in parallel to power input 1 and power feed detecting circuit 4, detecting an AC current by coil 7, rectifies and amplifies the current and then supplies its output to control circuit 5. Here, when a load for temporary operation is not used, switch circuit 6 is closed without fail and power output 3 feeds power to a load in long-period operation. Once the temporary load is put into operation, the power feed of output 2 is detected to open circuit 6. Consequently, the power feed for the long-period operation is interrupted and at this time, the power is fed to only the load for the temporary operation; when the operation of this load stops, impulse generator 10 restarts operating and the power feed to the load for the long-period operation recovers automatically. Consequently, the working power can be suppressed to less than a contract demand by alternating the loads.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4526579A JPS55138121A (en) | 1979-04-16 | 1979-04-16 | Electric power switching unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4526579A JPS55138121A (en) | 1979-04-16 | 1979-04-16 | Electric power switching unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55138121A true JPS55138121A (en) | 1980-10-28 |
Family
ID=12714458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4526579A Pending JPS55138121A (en) | 1979-04-16 | 1979-04-16 | Electric power switching unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138121A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6081618A (en) * | 1983-10-12 | 1985-05-09 | Ricoh Co Ltd | Load electric power control device |
-
1979
- 1979-04-16 JP JP4526579A patent/JPS55138121A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6081618A (en) * | 1983-10-12 | 1985-05-09 | Ricoh Co Ltd | Load electric power control device |
JPH0570165B2 (en) * | 1983-10-12 | 1993-10-04 | Ricoh Kk |
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