JPS58136933U - Electric leakage or disconnection - Google Patents
Electric leakage or disconnectionInfo
- Publication number
- JPS58136933U JPS58136933U JP3458482U JP3458482U JPS58136933U JP S58136933 U JPS58136933 U JP S58136933U JP 3458482 U JP3458482 U JP 3458482U JP 3458482 U JP3458482 U JP 3458482U JP S58136933 U JPS58136933 U JP S58136933U
- Authority
- JP
- Japan
- Prior art keywords
- main circuit
- variable resistor
- earth leakage
- connecting wire
- zero
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の漏電しゃ断器の一例を示す回路図、第２
図は第１図における漏電しゃ断器の大地静電容量を説明
する回路図、第３図は本考案による漏電しゃ断器の一実
施例を示す回路図、第４図は本考案による漏電しゃ断器
のパネルの一例を示す図、第５図は本考案による漏電し
ゃ断器の他の実施例を示す回路図である。
１・・・主回路接点、２・・・主回路導体、３・・・電
源側端子、４・・・接続電線、５・・・電源、６・・・
負荷側端子、７・・・負荷、８・・・補助変圧器、９・
・・単相全波整流器、１０・・・平滑コンデンサ、１１
・・・引外しコイル、１２・・・サイリスタ、１３・・
・零相変流器、１４・・・抵抗、１５・・・制御回路、
１６・・・抵抗、１７・・・コンデンサー、１８・・・
非直線サージ吸収素子、１９ａ・・・大地静電容量、１
９ｂ・・・大地静電容量、２０・・・可変抵抗器。
第４図
第５図Figure 1 is a circuit diagram showing an example of a conventional earth leakage breaker, Figure 2
The figure is a circuit diagram explaining the ground capacitance of the earth leakage breaker in Figure 1, Figure 3 is a circuit diagram showing an embodiment of the earth leakage breaker according to the present invention, and Figure 4 is a circuit diagram illustrating the earth leakage breaker according to the present invention. FIG. 5 is a circuit diagram showing another embodiment of the earth leakage breaker according to the present invention. DESCRIPTION OF SYMBOLS 1... Main circuit contact, 2... Main circuit conductor, 3... Power supply side terminal, 4... Connection wire, 5... Power supply, 6...
Load side terminal, 7...Load, 8...Auxiliary transformer, 9.
...Single-phase full-wave rectifier, 10...Smoothing capacitor, 11
...Tripping coil, 12...Thyristor, 13...
・Zero-phase current transformer, 14... Resistor, 15... Control circuit,
16...Resistor, 17...Capacitor, 18...
Nonlinear surge absorption element, 19a... Earth capacitance, 1
9b... Earth capacitance, 20... Variable resistor. Figure 4 Figure 5
Claims (1)
し、他方端に接続電線により負荷を接続した主回路導体
と、この主回路導体を１次側とし、２次側線間に可変抵
抗器を接続した零相変流器と、前記負荷側に漏電事故が
発生したとき、前記零相変流器の２次側に漏電検出電流
が流れ、この漏電検出電流を前記可変抵抗器により電圧
信号に変換し７、これが予め設定された基準電圧を超え
ていることを条件で前記主回路接点を開路する制御部と
、前記接続電線の導体断面積及び線長による大地静電容
量の値と、この大地静電容量によって前記制御部に入力
する電圧信号を打消す前記可変抵抗器の抵抗値とを対応
して表示するものであって、前記可変抵抗器の可動部に
設置した目盛板とを具備したことを特徴とする漏電しゃ
断器。A main circuit conductor that has main circuit contacts, is connected to a power source at one end by a connecting wire, and a load is connected to the other end by a connecting wire, and this main circuit conductor is the primary side, and a variable resistor is connected between the secondary side wires. When an earth leakage accident occurs between the zero-phase current transformer connected to the transformer and the load side, a leakage detection current flows to the secondary side of the zero-phase current transformer, and this earth leakage detection current is converted to a voltage by the variable resistor. a control unit that converts the signal into a signal 7 and opens the main circuit contact on the condition that this exceeds a preset reference voltage; and a value of the ground capacitance based on the conductor cross-sectional area and wire length of the connecting wire. , the resistance value of the variable resistor that cancels the voltage signal input to the control unit by this ground capacitance is displayed in correspondence with the scale plate installed on the movable part of the variable resistor. An earth leakage breaker characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3458482U JPS58136933U (en) | 1982-03-11 | 1982-03-11 | Electric leakage or disconnection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3458482U JPS58136933U (en) | 1982-03-11 | 1982-03-11 | Electric leakage or disconnection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58136933U true JPS58136933U (en) | 1983-09-14 |
Family
ID=30046073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3458482U Pending JPS58136933U (en) | 1982-03-11 | 1982-03-11 | Electric leakage or disconnection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58136933U (en) |
-
1982
- 1982-03-11 JP JP3458482U patent/JPS58136933U/en active Pending
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