JPH031642U - - Google Patents
Info
- Publication number
- JPH031642U JPH031642U JP5787089U JP5787089U JPH031642U JP H031642 U JPH031642 U JP H031642U JP 5787089 U JP5787089 U JP 5787089U JP 5787089 U JP5787089 U JP 5787089U JP H031642 U JPH031642 U JP H031642U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- input terminal
- phase
- phases
- voltage
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す電源系統図で
ある。
１−１，１−２，１−３……電源入力端子（Ｒ
，Ｓ，Ｔ）、２……中点端子（Ｎ）、３……三相
用開閉器（ＳＡ）、４，５……電圧検知器（Ｄ）
、６……単相用開閉器（ＳＢ）、７……出力端子
。
FIG. 1 is a power supply system diagram showing an embodiment of the present invention. 1-1, 1-2, 1-3...Power input terminal (R
, S, T), 2...Midpoint terminal (N), 3...Three-phase switch (SA), 4, 5...Voltage detector (D)
, 6... Single-phase switch (SB), 7... Output terminal.
Claims (1)
源の二つの相の電圧を検知する電圧検知部と、こ
の電圧検知部で前記二つの相の電圧が共に検知さ
れると前記入力端子に接続された電源の三つの相
の電圧を出力端子に送出し、前記電圧検知部で前
記二つの相の電圧が共に検知されないと前記入力
端子に接続された電源を単相電源とみなして前記
入力端子と前記出力端子間を単相用に自動切換接
続を行うスイツチ部とを有することを特徴とする
入力電源の三相・単相切換接続装置に関する。 a voltage detection section that detects voltages of two phases of a power supply connected to an input terminal that can be connected to a three-phase power supply; The voltages of three phases of the power supply connected to the input terminal are sent to the output terminal, and if the voltage of the two phases are not detected by the voltage detection section, the power supply connected to the input terminal is regarded as a single-phase power supply, and the voltage of the power supply connected to the input terminal is connected to the input terminal. The present invention relates to a three-phase/single-phase switching connection device for an input power source, characterized in that it has a switch section that automatically switches and connects the output terminals to a single-phase connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5787089U JPH031642U (en) | 1989-05-18 | 1989-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5787089U JPH031642U (en) | 1989-05-18 | 1989-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH031642U true JPH031642U (en) | 1991-01-09 |
Family
ID=31582969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5787089U Pending JPH031642U (en) | 1989-05-18 | 1989-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031642U (en) |
-
1989
- 1989-05-18 JP JP5787089U patent/JPH031642U/ja active Pending