JPS641431A - Power source equipment - Google Patents
Power source equipmentInfo
- Publication number
- JPS641431A JPS641431A JP62154141A JP15414187A JPS641431A JP S641431 A JPS641431 A JP S641431A JP 62154141 A JP62154141 A JP 62154141A JP 15414187 A JP15414187 A JP 15414187A JP S641431 A JPS641431 A JP S641431A
- Authority
- JP
- Japan
- Prior art keywords
- zero
- reactive
- current
- active
- electric
- 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.)
- Granted
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
PURPOSE: To prevent a worker from receiving an electric shock by disconnecting a power source system from an electric power system and a load, when both active and reactive currents of said electric power system are zero.
CONSTITUTION: The active component iCP and reactive component iCQ of electric current iC of a commercial electric system 5 are detected from an active current sensor 16 and a reactive current sensor 17, respectively. While said active current iCP is zero, a signal is sent by a reactive current controller 23 to a zero current sensor 18, which adds a given value ▵iQ to an actual reactive current command value iQ to obtain a reactive current command value. By said control, the reactive current corresponding to ▵iQ flows to said system 5. A zero current sensor 18' sends a signal to an AND logical circuit 19, while the reactive current is zero. When both active and reactive currents of the system 5 become zero, said zero current sensors 18, 18' send a signal at the same time so that the AND logical circuit 19 is energized. A timing device 20 cuts off a breaker 21 so that a power system is opened, when the AND logical circuit 19 has been energized more than a given period.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62154141A JPH0728507B2 (en) | 1987-06-19 | 1987-06-19 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62154141A JPH0728507B2 (en) | 1987-06-19 | 1987-06-19 | Power supply |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH011431A JPH011431A (en) | 1989-01-05 |
| JPS641431A true JPS641431A (en) | 1989-01-05 |
| JPH0728507B2 JPH0728507B2 (en) | 1995-03-29 |
Family
ID=15577778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62154141A Expired - Fee Related JPH0728507B2 (en) | 1987-06-19 | 1987-06-19 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728507B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011523342A (en) * | 2008-06-10 | 2011-08-04 | ロールス‐ロイス、パブリック、リミテッド、カンパニー | Generator network and local electrical system |
| JP2016100992A (en) * | 2014-11-21 | 2016-05-30 | 田淵電機株式会社 | Distribution type power supply system with accumulator battery |
| KR20160104140A (en) * | 2015-02-25 | 2016-09-05 | 순천대학교 산학협력단 | DC/AC Inverter using printing process and Manufacturing Method thereof |
-
1987
- 1987-06-19 JP JP62154141A patent/JPH0728507B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011523342A (en) * | 2008-06-10 | 2011-08-04 | ロールス‐ロイス、パブリック、リミテッド、カンパニー | Generator network and local electrical system |
| JP2016100992A (en) * | 2014-11-21 | 2016-05-30 | 田淵電機株式会社 | Distribution type power supply system with accumulator battery |
| KR20160104140A (en) * | 2015-02-25 | 2016-09-05 | 순천대학교 산학협력단 | DC/AC Inverter using printing process and Manufacturing Method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0728507B2 (en) | 1995-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |