JPH0348335U - - Google Patents
Info
- Publication number
- JPH0348335U JPH0348335U JP10736689U JP10736689U JPH0348335U JP H0348335 U JPH0348335 U JP H0348335U JP 10736689 U JP10736689 U JP 10736689U JP 10736689 U JP10736689 U JP 10736689U JP H0348335 U JPH0348335 U JP H0348335U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- power source
- switching device
- load
- supply switching
- 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
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Description
第１図はこの考案の一実施例による主電源と予
備電源の電源切替装置を示す回路図、第２図は第
１図一実施例を説明するための状態表示図、第３
図は従来の電源切替装置を示す回路図、第４図は
第３図の装置の操作順序を示すブロツク図、第５
図は従来の電源切替装置の他の例を示す回路図、
第６図はこの考案の他の実施例を示す回路図であ
る。
図において、１……主電源、２……予備電源、
７……負荷、１０……主電源電圧検出リレー、２
０……予備電源電圧検出リレー、２１……負荷電
圧検出リレーである。なお、図中、同一符号は同
一、または相当部分を示す。
Fig. 1 is a circuit diagram showing a power supply switching device for main power supply and standby power supply according to an embodiment of this invention, Fig. 2 is a state display diagram for explaining the embodiment shown in Fig. 1, and Fig. 3
The figure is a circuit diagram showing a conventional power supply switching device, FIG. 4 is a block diagram showing the operation sequence of the device in FIG. 3, and FIG.
The figure is a circuit diagram showing another example of a conventional power supply switching device.
FIG. 6 is a circuit diagram showing another embodiment of this invention. In the figure, 1...main power supply, 2...standby power supply,
7...Load, 10...Main power voltage detection relay, 2
0... Standby power supply voltage detection relay, 21... Load voltage detection relay. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
切替えて与える電源切替装置において、上記主電
源と上記予備電源および上記負荷の各電圧をそれ
ぞれ検出して、これらの電圧の状態にもとづき電
源切替用の開閉器を動作させ、電源の切替えを自
動的に行なうとともに、上記主電源と上記予備電
源とが同時に上記負荷に接続されないように構成
したことを特徴とする電源切替装置。 A power supply switching device that switches and supplies power from a main power source and a backup power source to the same load, detects each voltage of the main power source, the backup power source, and the load, and switches the power source based on the state of these voltages. A power supply switching device, characterized in that the power supply switching device operates a switch for automatic switching of power supplies, and is configured so that the main power supply and the backup power supply are not connected to the load at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10736689U JPH0348335U (en) | 1989-09-13 | 1989-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10736689U JPH0348335U (en) | 1989-09-13 | 1989-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348335U true JPH0348335U (en) | 1991-05-09 |
Family
ID=31656058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10736689U Pending JPH0348335U (en) | 1989-09-13 | 1989-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348335U (en) |
-
1989
- 1989-09-13 JP JP10736689U patent/JPH0348335U/ja active Pending
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