JPH03109255U - - Google Patents
Info
- Publication number
- JPH03109255U JPH03109255U JP13317689U JP13317689U JPH03109255U JP H03109255 U JPH03109255 U JP H03109255U JP 13317689 U JP13317689 U JP 13317689U JP 13317689 U JP13317689 U JP 13317689U JP H03109255 U JPH03109255 U JP H03109255U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- zero
- resistor
- test
- current transformer
- 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 description 3
- 238000004804 winding Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Breakers (AREA)
Description
第１図は本件考案の第１の実施例によるテスト
ボタン回路の図、第２図は本件考案のテストボタ
ン回路の各部分の電流電圧波形を示す図、第３図
は従来のテストボタン回路の図、第４図は本件考
案の第２の実施例によるテストボタン回路の図で
ある。
１……零相変流器、３……漏電検知回路、５…
…サイリスタ、９……テストスイツチ、１０……
抵抗、１１……抵抗、１２……ダイオード。
Fig. 1 is a diagram of the test button circuit according to the first embodiment of the present invention, Fig. 2 is a diagram showing current and voltage waveforms of each part of the test button circuit of the present invention, and Fig. 3 is a diagram of the conventional test button circuit. FIG. 4 is a diagram of a test button circuit according to a second embodiment of the present invention. 1...Zero-phase current transformer, 3...Earth leakage detection circuit, 5...
...Thyristor, 9...Test switch, 10...
Resistor, 11...Resistor, 12...Diode.
Claims (1)
、しきい値を超えた時、サイリスタをトリガーし
て接点開閉機構部を引外すようにした検知回路を
有する漏電遮断器等において、半波整流電圧をテ
ストスイツチと抵抗を介して前記零相変流器の２
次巻線の一方の出力端子に接続して印加し、零相
変流器の２次巻線のインダクタンス分により微分
した電圧を前記検知回路の入力端に加えるように
すると共に、前記テストスイツチを押した時、電
源電圧線間に接続されてテストスイツチに流れる
電流を増加させる為の抵抗と、該テストスイツチ
に流れる電流を増加させる為の抵抗を通じて、前
記零相変流器の２次巻線の一方の出力端の電圧が
、前記半波整流電圧の電圧のない側の電位に引き
ずられない方向に配したダイオードとを付加した
ことを特徴とする漏電遮断器等のテストボタン回
路。 In an earth leakage breaker, etc., which has a detection circuit that compares the secondary output voltage of a zero-phase alternator with a threshold value and, when the threshold value is exceeded, triggers a thyristor to trip the contact opening/closing mechanism. 2 of the zero-phase current transformer through the test switch and resistor to test the half-wave rectified voltage
A voltage is applied by connecting to one output terminal of the next winding and differentiated by the inductance of the secondary winding of the zero-phase current transformer, and the voltage is applied to the input terminal of the detection circuit. When pressed, the secondary winding of the zero-phase current transformer is connected through a resistor connected between the power supply voltage lines to increase the current flowing to the test switch, and a resistor to increase the current flowing to the test switch. A test button circuit for an earth leakage breaker, etc., characterized in that a diode is added in such a direction that the voltage at one output end of the voltage is not dragged by the potential on the non-voltage side of the half-wave rectified voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13317689U JPH03109255U (en) | 1989-11-15 | 1989-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13317689U JPH03109255U (en) | 1989-11-15 | 1989-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03109255U true JPH03109255U (en) | 1991-11-11 |
Family
ID=31680589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13317689U Pending JPH03109255U (en) | 1989-11-15 | 1989-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03109255U (en) |
-
1989
- 1989-11-15 JP JP13317689U patent/JPH03109255U/ja active Pending
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