JPS63127241U - - Google Patents
Info
- Publication number
- JPS63127241U JPS63127241U JP1828587U JP1828587U JPS63127241U JP S63127241 U JPS63127241 U JP S63127241U JP 1828587 U JP1828587 U JP 1828587U JP 1828587 U JP1828587 U JP 1828587U JP S63127241 U JPS63127241 U JP S63127241U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- zero
- phase current
- circuit
- rectifier circuit
- 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 3
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図はこの考案の一実施例による漏電しや断
器の電気回路を概略的に示す図、第２図はこの考
案の他の実施例による漏電しや断器の電気回路を
概略的に示す図、第３図は従来の漏電しや断器の
電気回路を概略的に示す図である。
図において、１は主回路、２は零相変流器、３
は増幅器、５は整流回路、５０５はその一方の端
子、５０６は他方の端子、８は引外しコイル、９
は開閉接点、１２はトランジスタ、１３はツエナ
ーダイオードである。なお、各図中同一符号は同
一部または相当部を示す。
Fig. 1 is a diagram schematically showing an electric circuit for leakage and disconnection according to one embodiment of this invention, and Fig. 2 is a diagram schematically showing an electric circuit for leakage and disconnection according to another embodiment of this invention. The figure shown in FIG. 3 is a diagram schematically showing a conventional electric circuit for leakage and disconnection. In the figure, 1 is the main circuit, 2 is the zero-phase current transformer, and 3 is the main circuit.
is an amplifier, 5 is a rectifier circuit, 505 is one terminal thereof, 506 is the other terminal, 8 is a tripping coil, 9
12 is a transistor, and 13 is a Zener diode. Note that the same reference numerals in each figure indicate the same or equivalent parts.
Claims (1)
零相変流器の出力を増幅する増幅器、前記主回路
の交流電圧を整流して前記増幅器に供給する整流
回路、前記主回路に設けられた開閉接点、前記増
幅器に出力が生じた時に付勢されて前記開閉接点
を開放させる引外しコイルを備えた漏電しや断器
において、前記整流回路の一方の端子と前記増幅
器との間に接続されたトランジスタと、このトラ
ンジスタのベースと前記整流回路の他方の端子と
の間に接続されたツエナーダイオードとを備えた
ことを特徴とする漏電しや断器。 A zero-phase current transformer that detects the zero-phase current of the main circuit, an amplifier that amplifies the output of this zero-phase current transformer, a rectifier circuit that rectifies the alternating current voltage of the main circuit and supplies it to the amplifier, between one terminal of the rectifier circuit and the amplifier in an earth leakage or disconnection circuit equipped with a switching contact provided and a tripping coil that is energized to open the switching contact when an output is generated in the amplifier. and a Zener diode connected between the base of the transistor and the other terminal of the rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1828587U JPS63127241U (en) | 1987-02-10 | 1987-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1828587U JPS63127241U (en) | 1987-02-10 | 1987-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63127241U true JPS63127241U (en) | 1988-08-19 |
Family
ID=30811821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1828587U Pending JPS63127241U (en) | 1987-02-10 | 1987-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63127241U (en) |
-
1987
- 1987-02-10 JP JP1828587U patent/JPS63127241U/ja active Pending
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