JPH0319973U - - Google Patents
Info
- Publication number
- JPH0319973U JPH0319973U JP7939989U JP7939989U JPH0319973U JP H0319973 U JPH0319973 U JP H0319973U JP 7939989 U JP7939989 U JP 7939989U JP 7939989 U JP7939989 U JP 7939989U JP H0319973 U JPH0319973 U JP H0319973U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- signal power
- substation
- superimposed
- 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
- 238000005259 measurement Methods 0.000 claims description 5
- 230000006866 deterioration Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図はこの考案の一実施例を示す回路構成図
、第２図は従来の装置の回路構成図である。
１……高圧母線、２……接地用変圧器、４……
接地器、５，２０……電磁接触子、７，８，１０
……連絡ケーブル、１１……直流信号電源装置、
９……測定兼制御器、１２，１３……抵抗、１４
……フユーズ或は回路保護リレー、１８，１９…
…安定化直流電源、２１……常時閉接点。
FIG. 1 is a circuit diagram showing an embodiment of this invention, and FIG. 2 is a circuit diagram of a conventional device. 1... High voltage bus bar, 2... Grounding transformer, 4...
Earther, 5, 20...Magnetic contactor, 7, 8, 10
...Communication cable, 11...DC signal power supply device,
9...Measurement and controller, 12, 13...Resistance, 14
... fuse or circuit protection relay, 18, 19...
...Stabilized DC power supply, 21...Normally closed contact.
Claims (1)
諸所の変電所で直流電圧を交流に重畳して印加す
る直流信号電源装置を有する交流重畳直流電圧印
加装置において、 変電所内の接地用機器と大地との間に挿入され
た常時閉接点を有する電磁接触子を内蔵する接地
器と、 変電所外の容易接近箇所まで測定の都度運搬す
る直流信号電源装置と、 前記変電所内まで測定の都度搬入する測定兼制
御器と、 前記接地器と直流信号電源装置と測定兼制御器
とを相互に連絡するケーブルと、を備え、 高圧系統全体の対地絶縁抵抗の測定および前記
直流信号電源装置、接地器の制御は前記変電所内
で測定兼制御器によりおこなうことを特徴とする
交流重畳直流電圧印加装置。 ２ 前記直流信号電源装置は直流電圧印加中に高
圧系統に地絡事故が発生したときに流入する地絡
電流の半波整流波により動作するフユーズ或は回
路保護リレーの付属接点の動作により前記接地器
内電磁接触子接点を閉成する保護装置を含むこと
を特徴とする請求項第１項記載の交流重畳直流電
圧印加装置。[Scope of Claim for Utility Model Registration] 1. In an AC superimposed DC voltage application device having a DC signal power supply device that travels around and applies DC voltage superimposed on AC at various substations for diagnosing deterioration under live conditions of high-voltage cables. , a grounding device with a built-in electromagnetic contactor having a normally closed contact that is inserted between the grounding equipment in the substation and the earth, and a DC signal power supply device that is transported to an easily accessible point outside the substation for each measurement. It is equipped with a measurement/control device that is carried into the substation each time a measurement is made, and a cable that interconnects the grounding device, the DC signal power supply device, and the measurement/control device, and is capable of measuring the ground insulation resistance of the entire high-voltage system. An AC superimposed DC voltage applying device characterized in that control of the DC signal power supply device and the grounding device is performed by a measuring and controlling device within the substation. 2. The DC signal power supply device is connected to the ground by operating a fuse or an attached contact of a circuit protection relay, which is operated by a half-wave rectified wave of the ground fault current that flows when a ground fault occurs in the high voltage system while DC voltage is being applied. 2. The AC superimposed DC voltage application device according to claim 1, further comprising a protection device for closing an internal electromagnetic contactor contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989079399U JPH0740224Y2 (en) | 1989-07-05 | 1989-07-05 | AC superimposed DC voltage application device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989079399U JPH0740224Y2 (en) | 1989-07-05 | 1989-07-05 | AC superimposed DC voltage application device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0319973U true JPH0319973U (en) | 1991-02-27 |
| JPH0740224Y2 JPH0740224Y2 (en) | 1995-09-13 |
Family
ID=31623528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989079399U Expired - Lifetime JPH0740224Y2 (en) | 1989-07-05 | 1989-07-05 | AC superimposed DC voltage application device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740224Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289970A (en) * | 1976-01-21 | 1977-07-28 | Sumitomo Electric Ind Ltd | Insulation resistance measuring method for distribution lines in live condition |
| JPS5934977A (en) * | 1982-08-19 | 1984-02-25 | Koyo Seiko Co Ltd | Operation controller for power steering gear |
| JPS6244369U (en) * | 1985-09-05 | 1987-03-17 |
-
1989
- 1989-07-05 JP JP1989079399U patent/JPH0740224Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289970A (en) * | 1976-01-21 | 1977-07-28 | Sumitomo Electric Ind Ltd | Insulation resistance measuring method for distribution lines in live condition |
| JPS5934977A (en) * | 1982-08-19 | 1984-02-25 | Koyo Seiko Co Ltd | Operation controller for power steering gear |
| JPS6244369U (en) * | 1985-09-05 | 1987-03-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740224Y2 (en) | 1995-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |