JPH02668U - - Google Patents
Info
- Publication number
- JPH02668U JPH02668U JP7806588U JP7806588U JPH02668U JP H02668 U JPH02668 U JP H02668U JP 7806588 U JP7806588 U JP 7806588U JP 7806588 U JP7806588 U JP 7806588U JP H02668 U JPH02668 U JP H02668U
- Authority
- JP
- Japan
- Prior art keywords
- distribution line
- voltage
- insulation resistance
- current
- impedance
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000010363 phase shift Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図は本考案の絶縁抵抗測定装置の１実施例
のブロツク図、第２図、第４図は第１図の測定説
明用のインピーダンス座標、第３図は第１図の動
作説明用のフローチヤート、第５図は従来の絶縁
抵抗測定装置の測定説明用のインピーダンス座標
である。
１……３相低圧配電線路、１′……中性点、３
……マイクロプロセツサ、４……電圧発生器、５
……注入用スイツチ、６……注入用変成器、７…
…零相変成器、８，９……入力増幅器、１１……
マルチプレクサ、１２……Ａ／Ｄ変換器。
Figure 1 is a block diagram of one embodiment of the insulation resistance measuring device of the present invention, Figures 2 and 4 are impedance coordinates for explaining the measurement in Figure 1, and Figure 3 is for explaining the operation of Figure 1. The flowchart, FIG. 5, shows impedance coordinates for explaining measurement by a conventional insulation resistance measuring device. 1...3-phase low-voltage distribution line, 1'...neutral point, 3
...Microprocessor, 4...Voltage generator, 5
...Injection switch, 6...Injection transformer, 7...
...Zero phase transformer, 8, 9... Input amplifier, 11...
Multiplexer, 12...A/D converter.
Claims (1)
抗測定装置において、 前記配電線路の非接地の中性点に送電交流と異
なる２周波数の低周波の電圧信号を順に注入する
電圧注入手段と、 前記配電線路の零相電流を検出する電流検出手
段と、 前記検出手段の検出結果にもとづき前記両電圧
信号それぞれの注入時の前記配電線路の零相電圧
、電流の実効値及び位相角を算出するとともに該
両実効値及び位相角から前記両電圧信号それぞれ
にもとづく前記配電線路のインピーダンスの抵抗
成分、リアクタンス成分の測定値を算出するイン
ピーダンス演算手段と、 前記両電圧信号の前記抵抗成分、リアクタンス
成分の測定値にもとづく幾何学演算から前記イン
ピーダンスの測定位相ずれを補正し、前記配電線
路の絶縁抵抗を算出する補正演算手段と を備えた絶縁抵抗測定装置。[Claim for Utility Model Registration] An insulation resistance measuring device for measuring the insulation resistance of a multi-phase low voltage distribution line, which sequentially applies low frequency voltage signals of two frequencies different from the power transmission alternating current to an ungrounded neutral point of the distribution line. a voltage injection means for injecting voltage; a current detection means for detecting a zero-sequence current of the distribution line; and a current detection means for detecting the zero-sequence voltage and current of the distribution line at the time of injection of each of the voltage signals based on the detection results of the detection means. impedance calculation means for calculating the resistance component and reactance component of the impedance of the distribution line based on each of the voltage signals from the effective value and phase angle; An insulation resistance measuring device comprising: correction calculation means for correcting the measurement phase shift of the impedance from a geometric calculation based on the measured values of the resistance component and the reactance component, and calculating the insulation resistance of the distribution line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7806588U JPH0645270Y2 (en) | 1988-06-13 | 1988-06-13 | Insulation resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7806588U JPH0645270Y2 (en) | 1988-06-13 | 1988-06-13 | Insulation resistance measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02668U true JPH02668U (en) | 1990-01-05 |
| JPH0645270Y2 JPH0645270Y2 (en) | 1994-11-16 |
Family
ID=31303015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7806588U Expired - Lifetime JPH0645270Y2 (en) | 1988-06-13 | 1988-06-13 | Insulation resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645270Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04208868A (en) * | 1990-11-20 | 1992-07-30 | Mitsubishi Electric Corp | Uninterruptible insulation diagnostic apparatus |
| JP2014202686A (en) * | 2013-04-09 | 2014-10-27 | 三菱電機ビルテクノサービス株式会社 | Non-outage insulation diagnostic device and non-outage insulation diagnostic method |
| JP2020510815A (en) * | 2017-02-17 | 2020-04-09 | ドーブル エンジニアリング カンパニー | System and method for performing transformer diagnostics |
| JP2022128771A (en) * | 2021-02-24 | 2022-09-05 | 富士電機機器制御株式会社 | Cable run monitoring device, cable run monitoring system and cable run monitoring method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101483952B1 (en) * | 2013-06-14 | 2015-01-21 | 광주과학기술원 | Wire harness inspection method |
-
1988
- 1988-06-13 JP JP7806588U patent/JPH0645270Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04208868A (en) * | 1990-11-20 | 1992-07-30 | Mitsubishi Electric Corp | Uninterruptible insulation diagnostic apparatus |
| JP2014202686A (en) * | 2013-04-09 | 2014-10-27 | 三菱電機ビルテクノサービス株式会社 | Non-outage insulation diagnostic device and non-outage insulation diagnostic method |
| JP2020510815A (en) * | 2017-02-17 | 2020-04-09 | ドーブル エンジニアリング カンパニー | System and method for performing transformer diagnostics |
| JP2022128771A (en) * | 2021-02-24 | 2022-09-05 | 富士電機機器制御株式会社 | Cable run monitoring device, cable run monitoring system and cable run monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645270Y2 (en) | 1994-11-16 |
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