JPH0436474U - - Google Patents
Info
- Publication number
- JPH0436474U JPH0436474U JP7901990U JP7901990U JPH0436474U JP H0436474 U JPH0436474 U JP H0436474U JP 7901990 U JP7901990 U JP 7901990U JP 7901990 U JP7901990 U JP 7901990U JP H0436474 U JPH0436474 U JP H0436474U
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- clip
- type transformer
- load
- signal generator
- 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
- 238000005259 measurement Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Description
図は本考案に係る絶縁試験装置の使用状態を示
す説明図で、１点鎖線で囲んだ部分は本考案に係
る絶縁試験装置のブロツク図である。
ＣＴ１……注入用変成器、ＣＴ２……検出用変
成器、ＯＳＣ……測定用交流信号発生器、ＢＰＡ
……バンドパスアンプ、ＳＲ……同期整流回路、
ＣＰＵ……計算部、ＤＰＹ……表示部、ＡＲ……
増幅整流回路、ＳＷ１〜ＳＷ３……切換スイツチ
。
The figure is an explanatory view showing the state of use of the insulation testing device according to the present invention, and the portion surrounded by a dashed line is a block diagram of the insulation testing device according to the present invention. CT1...Injection transformer, CT2...Detection transformer, OSC...Measurement AC signal generator, BPA
... Bandpass amplifier, SR ... Synchronous rectifier circuit,
CPU...Calculation unit, DPY...Display unit, AR...
Amplification and rectification circuit, SW1 to SW3...selector switch.
Claims (1)
高調波関係にない複数の周波数の測定用交流信号
を選択的に切り換えて出力する測定用交流信号発
生器と、 該測定用交流信号発生器の出力信号を負荷と電
源を接続する電源ラインに注入する第１のクリツ
プ形変成器と、 注入された測定用交流信号に基づいて負荷と大
地間を流れる注入電流を電源ラインから検出する
第２のクリツプ形変成器と、 該第２のクリツプ形変成器で検出された注入電
流から負荷と大地間に存在する純抵抗を流れるも
れ電流成分を求めるもれ電流測定回路、 とで構成されたことを特徴とする絶縁試験装置。[Claims for Utility Model Registration] A measurement AC signal generator that selectively switches and outputs measurement AC signals of a plurality of frequencies that are not in a harmonic relationship with the power supply frequency and are not in a harmonic relationship with each other; a first clip-type transformer for injecting the output signal of the measurement AC signal generator into a power line connecting the load and the power source; A second clip-type transformer detected from the power supply line, and leakage current measurement to determine the leakage current component flowing through a pure resistance existing between the load and the ground from the injection current detected by the second clip-type transformer. An insulation testing device comprising: a circuit;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7901990U JPH0436474U (en) | 1990-07-25 | 1990-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7901990U JPH0436474U (en) | 1990-07-25 | 1990-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0436474U true JPH0436474U (en) | 1992-03-26 |
Family
ID=31622809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7901990U Pending JPH0436474U (en) | 1990-07-25 | 1990-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011154028A (en) * | 2010-01-26 | 2011-08-11 | Maxim Integrated Products Inc | Isolation monitoring system and method utilizing variable emulated inductance |
| JP2011185626A (en) * | 2010-03-05 | 2011-09-22 | Hioki Ee Corp | Impedance measuring device |
-
1990
- 1990-07-25 JP JP7901990U patent/JPH0436474U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011154028A (en) * | 2010-01-26 | 2011-08-11 | Maxim Integrated Products Inc | Isolation monitoring system and method utilizing variable emulated inductance |
| JP2011185626A (en) * | 2010-03-05 | 2011-09-22 | Hioki Ee Corp | Impedance measuring device |
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