JPS6437391U - - Google Patents
Info
- Publication number
- JPS6437391U JPS6437391U JP1987130978U JP13097887U JPS6437391U JP S6437391 U JPS6437391 U JP S6437391U JP 1987130978 U JP1987130978 U JP 1987130978U JP 13097887 U JP13097887 U JP 13097887U JP S6437391 U JPS6437391 U JP S6437391U
- Authority
- JP
- Japan
- Prior art keywords
- current transformer
- comparator
- current
- converts
- detects
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Protection Of Static Devices (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は本考案に適用される検出回路の構成図である
。
２……順変換部、３……逆変換部、５……負荷
、６……変流器、ＣＰ１，ＣＰ２……比較器。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a configuration diagram of a detection circuit applied to the present invention. 2...Forward conversion unit, 3...Inverse conversion unit, 5...Load, 6...Current transformer, CP1 , CP2 ...Comparator.
Claims (1)
し、この変換された直流を逆変換部にて交流に変
換した後、負荷に電力を供給するものに於いて、
前記逆変換部の直流側に変流器を設け、この変流
器にて接地電流を検出し、この検出値を夫々導入
して検出値の正値を検出する第１の比較器と負値
を検出する第２の比較器とを設け、各比較器の比
較検出信号を前記逆変換部のゲートしや断信号と
したことを特徴としたインバータ装置の接地電流
検出装置。 (2) 変流器をホール変流器としたことを特徴と
した実用新案登録請求の範囲第１項記載のインバ
ータ装置の接地電流検出装置。[Scope of Claim for Utility Model Registration] (1) A device that converts AC power supply voltage into DC in a forward converter, converts the converted DC into AC in an inverse converter, and then supplies power to a load. In the
A current transformer is provided on the DC side of the inverse conversion section, and the current transformer detects the ground current, and a first comparator that detects a positive value of the detected value by introducing the detected value, respectively, and a negative value. A ground current detection device for an inverter device, characterized in that a second comparator for detecting is provided, and a comparison detection signal of each comparator is used as a gate failure signal of the inverse conversion section. (2) A grounding current detection device for an inverter device according to claim 1, characterized in that the current transformer is a Hall current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987130978U JPS6437391U (en) | 1987-08-28 | 1987-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987130978U JPS6437391U (en) | 1987-08-28 | 1987-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6437391U true JPS6437391U (en) | 1989-03-07 |
Family
ID=31386624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987130978U Pending JPS6437391U (en) | 1987-08-28 | 1987-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6437391U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59188335A (en) * | 1983-04-08 | 1984-10-25 | 三菱電機株式会社 | Ground-fault detecting circuit |
| JPS61251419A (en) * | 1985-04-30 | 1986-11-08 | 株式会社日立製作所 | Zero current detection of variable frequency inverter |
-
1987
- 1987-08-28 JP JP1987130978U patent/JPS6437391U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59188335A (en) * | 1983-04-08 | 1984-10-25 | 三菱電機株式会社 | Ground-fault detecting circuit |
| JPS61251419A (en) * | 1985-04-30 | 1986-11-08 | 株式会社日立製作所 | Zero current detection of variable frequency inverter |