JPH0472533U - - Google Patents
Info
- Publication number
- JPH0472533U JPH0472533U JP11565890U JP11565890U JPH0472533U JP H0472533 U JPH0472533 U JP H0472533U JP 11565890 U JP11565890 U JP 11565890U JP 11565890 U JP11565890 U JP 11565890U JP H0472533 U JPH0472533 U JP H0472533U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- voltage dividing
- circuit
- wire
- dividing resistor
- 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
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の第１の実施例を示す回路図、
第２図は本考案の第２の実施例を示す回路図であ
る。
２……中性線、３……一方の電圧線、４……他
方の電圧線、７……分圧回路、８……他方の分圧
抵抗、９……一方の分圧抵抗、１０……検出回路
、１１……サイリスタ、１２……電磁石、１３…
…テスト回路、１４……抵抗付のテストスイツチ
。
FIG. 1 is a circuit diagram showing a first embodiment of the present invention;
FIG. 2 is a circuit diagram showing a second embodiment of the present invention. 2... Neutral wire, 3... One voltage line, 4... Other voltage line, 7... Voltage dividing circuit, 8... Other voltage dividing resistor, 9... One voltage dividing resistor, 10... ...Detection circuit, 11...Thyristor, 12...Electromagnet, 13...
...Test circuit, 14...Test switch with resistor.
Claims (1)
して得られた半波を分圧抵抗８，９よりなる分圧
回路７に加えるとともに、中性線２と他方の電圧
線４間の電圧を半波整流して得られた半波を前記
分圧回路７に加え、該分圧回路７の一方の分圧抵
抗９を検出回路１０に接続し、中性線の欠相によ
り一方の分圧抵抗９の両端の電圧が所定値を越え
たとき検出回路１０の出力によつて作動されるサ
イリスタ１０を回路遮断用の電磁石１２に接続し
た単相三線式回路遮断器において、分圧回路７の
他方の分圧抵抗８に、前記した一方の分圧抵抗９
との分圧比を変えるテストスイツチ１４を設けた
ことを特徴とする単相三線式回路遮断器。 The half wave obtained by half-wave rectification of the voltage between the neutral wire 2 and one voltage wire 3 is applied to the voltage dividing circuit 7 consisting of voltage dividing resistors 8 and 9, and the voltage between the neutral wire 2 and the other voltage wire The half-wave obtained by half-wave rectification of the voltage between 4 and 4 is applied to the voltage dividing circuit 7, one voltage dividing resistor 9 of the voltage dividing circuit 7 is connected to the detection circuit 10, and the open phase of the neutral wire is In a single-phase three-wire circuit breaker in which a thyristor 10, which is activated by the output of a detection circuit 10 when the voltage across one voltage dividing resistor 9 exceeds a predetermined value, is connected to a circuit-breaking electromagnet 12, The other voltage dividing resistor 8 of the voltage dividing circuit 7 is connected to the one voltage dividing resistor 9 described above.
A single-phase three-wire circuit breaker characterized by being provided with a test switch 14 that changes the voltage division ratio between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990115658U JP2525628Y2 (en) | 1990-11-02 | 1990-11-02 | Single-phase three-wire circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990115658U JP2525628Y2 (en) | 1990-11-02 | 1990-11-02 | Single-phase three-wire circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0472533U true JPH0472533U (en) | 1992-06-25 |
| JP2525628Y2 JP2525628Y2 (en) | 1997-02-12 |
Family
ID=31863437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990115658U Expired - Lifetime JP2525628Y2 (en) | 1990-11-02 | 1990-11-02 | Single-phase three-wire circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525628Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017462U (en) * | 1983-07-15 | 1985-02-06 | 株式会社日立製作所 | Heater abnormality monitoring circuit |
| JPS61141936U (en) * | 1985-02-20 | 1986-09-02 | ||
| JPH02133676U (en) * | 1989-04-12 | 1990-11-06 | ||
| JPH04133234A (en) * | 1990-09-25 | 1992-05-07 | Toshiba Lighting & Technol Corp | Breaker with protection of neutral wire open phase |
-
1990
- 1990-11-02 JP JP1990115658U patent/JP2525628Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017462U (en) * | 1983-07-15 | 1985-02-06 | 株式会社日立製作所 | Heater abnormality monitoring circuit |
| JPS61141936U (en) * | 1985-02-20 | 1986-09-02 | ||
| JPH02133676U (en) * | 1989-04-12 | 1990-11-06 | ||
| JPH04133234A (en) * | 1990-09-25 | 1992-05-07 | Toshiba Lighting & Technol Corp | Breaker with protection of neutral wire open phase |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2525628Y2 (en) | 1997-02-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |