JPH0461436U - - Google Patents
Info
- Publication number
- JPH0461436U JPH0461436U JP1990103429U JP10342990U JPH0461436U JP H0461436 U JPH0461436 U JP H0461436U JP 1990103429 U JP1990103429 U JP 1990103429U JP 10342990 U JP10342990 U JP 10342990U JP H0461436 U JPH0461436 U JP H0461436U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- inverter
- outputs
- bridge rectifier
- series
- 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
- 238000009499 grossing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案の一実施例を説明するための図
、第２図は漏れ電流の流れるループの等価回路図
、第３図及び第４図はそれぞれ本考案の他の一実
施例を説明するための図、第５図は従来例を説明
するための図である。
１……直流電源、２……インバータ、３……電
力変換回路、４……負荷、５……ブリツジ整流回
路、６……平滑回路、７……フイルタ回路、Ｔ１
……トランス、Ｄ１〜Ｄ４……ダイオード、Ｃ１
〜Ｃ５……コンデンサ、ＳＷ１〜ＳＷ４……スイ
ツチ、Ｒ１〜Ｒ７，Ｒｄ……抵抗、ＺＤ１，ＺＤ
２……ツエナダイオード、ＴＲ１，ＴＲ２……ト
ランジスタ、ＲＬ……リレー、Ｌ１，Ｌ２……イ
ンダクタンス、Ｒｇ……漏れ抵抗、ＰＣ……ホト
カプラ。
Fig. 1 is a diagram for explaining one embodiment of the present invention, Fig. 2 is an equivalent circuit diagram of a loop through which leakage current flows, and Figs. 3 and 4 each illustrate another embodiment of the present invention. FIG. 5 is a diagram for explaining a conventional example. 1... DC power supply, 2... Inverter, 3... Power conversion circuit, 4... Load, 5... Bridge rectifier circuit, 6... Smoothing circuit, 7... Filter circuit, T1
...Transformer, D1-D4...Diode, C1
~C5... Capacitor, SW1-SW4... Switch, R1-R7, Rd... Resistor, ZD1, ZD
2...Zena diode, TR1, TR2...transistor, RL...relay, L1, L2...inductance, Rg...leakage resistance, PC...photocoupler.
Claims (1)
流電圧を出力するインバータにおいて、 該インバータの出力間に抵抗値の等しい抵抗を
直列接続し、ブリツジ整流回路の交流入力端子の
一方を上記抵抗の接続点に接続し、他方を上記イ
ンバータのケースに接続すると共に、上記ブリツ
ジ整流回路の整流出力端子間に平滑回路を接続し
、該平滑回路の電圧が所定の値に達したとき警報
を出力することを特徴とするインバータ装置。[Claims for Utility Model Registration] In an inverter that receives DC voltage or AC voltage and outputs AC voltage with insulation, resistors with equal resistance are connected in series between the outputs of the inverter, and the AC input of the bridge rectifier circuit is connected in series. One of the terminals is connected to the connection point of the resistor, the other is connected to the case of the inverter, and a smoothing circuit is connected between the rectified output terminals of the bridge rectifier circuit, and the voltage of the smoothing circuit is adjusted to a predetermined value. An inverter device characterized in that it outputs an alarm when reaching the limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990103429U JPH0461436U (en) | 1990-10-01 | 1990-10-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990103429U JPH0461436U (en) | 1990-10-01 | 1990-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461436U true JPH0461436U (en) | 1992-05-26 |
Family
ID=31848299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990103429U Pending JPH0461436U (en) | 1990-10-01 | 1990-10-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461436U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211709A (en) * | 1984-04-03 | 1985-10-24 | 海洋科学技術センタ− | Water leakabe warning circuit of underwater using device |
| JPS6258213A (en) * | 1985-05-20 | 1987-03-13 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber type light polarizing and figure changing device |
| JPH02164223A (en) * | 1988-11-11 | 1990-06-25 | Fuji Electric Co Ltd | Ground protector for inverter |
-
1990
- 1990-10-01 JP JP1990103429U patent/JPH0461436U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60211709A (en) * | 1984-04-03 | 1985-10-24 | 海洋科学技術センタ− | Water leakabe warning circuit of underwater using device |
| JPS6258213A (en) * | 1985-05-20 | 1987-03-13 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber type light polarizing and figure changing device |
| JPH02164223A (en) * | 1988-11-11 | 1990-06-25 | Fuji Electric Co Ltd | Ground protector for inverter |
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