JPS6412442U - - Google Patents
Info
- Publication number
- JPS6412442U JPS6412442U JP1987104737U JP10473787U JPS6412442U JP S6412442 U JPS6412442 U JP S6412442U JP 1987104737 U JP1987104737 U JP 1987104737U JP 10473787 U JP10473787 U JP 10473787U JP S6412442 U JPS6412442 U JP S6412442U
- Authority
- JP
- Japan
- Prior art keywords
- detected
- inverter device
- leakage current
- converts
- 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
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
Description
図はこの考案の一実施例によるインバータ装置
を示すブロツク図で、図中、１は交流電源、２は
ダイオードコンバータ、３は平滑用コンデンサ、
４はトランジスタインバータ、５は交流電動機、
６はベースドライブ回路、７はＰＷＭ制御回路、
８は零相変流器、９は比較器、１０はタイマー回
路、１１は表示回路を示す。
The figure is a block diagram showing an inverter device according to an embodiment of this invention. In the figure, 1 is an AC power supply, 2 is a diode converter, 3 is a smoothing capacitor,
4 is a transistor inverter, 5 is an AC motor,
6 is a base drive circuit, 7 is a PWM control circuit,
8 is a zero-phase current transformer, 9 is a comparator, 10 is a timer circuit, and 11 is a display circuit.
Claims (1)
逆変換し、交流電動機を可変速運転するインバー
タ装置において、零相変流器により漏洩電流を検
出し、比較値レベル以上の漏洩電流が検出されな
い場合、出力を遮断するように構成されたことを
特徴とするインバータ装置。 In an inverter device that converts AC power forward and then reversely converts it using PWM control to operate an AC motor at variable speed, leakage current is detected by a zero-phase current transformer, and if no leakage current higher than the comparison value level is detected, An inverter device configured to cut off output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987104737U JPS6412442U (en) | 1987-07-08 | 1987-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987104737U JPS6412442U (en) | 1987-07-08 | 1987-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412442U true JPS6412442U (en) | 1989-01-23 |
Family
ID=31336718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987104737U Pending JPS6412442U (en) | 1987-07-08 | 1987-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412442U (en) |
-
1987
- 1987-07-08 JP JP1987104737U patent/JPS6412442U/ja active Pending