JP2007129889A - Safety power switch for maintenance and inspection - Google Patents
Safety power switch for maintenance and inspection Download PDFInfo
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- JP2007129889A JP2007129889A JP2006138269A JP2006138269A JP2007129889A JP 2007129889 A JP2007129889 A JP 2007129889A JP 2006138269 A JP2006138269 A JP 2006138269A JP 2006138269 A JP2006138269 A JP 2006138269A JP 2007129889 A JP2007129889 A JP 2007129889A
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- maintenance
- switch
- power
- inspection
- power switch
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Abstract
Description
本発明はキースイッチおよび認証によって保守点検中に作業員が感電事故や身体障害を引き起こす事故を防止する構造とした保守点検安全電源スイッチに関するものである。 The present invention relates to a maintenance / inspection safety power switch having a structure that prevents an operator from causing an electric shock accident or a physical injury during maintenance / inspection by a key switch and authentication.
従来の電源スイッチは保守点検中の作業員が全くの他人が電源スイッチを操作することによって感電事故や稼動部に挟まれ身体障害を引き起こす問題があった。 The conventional power switch has a problem of causing an electric shock accident or a physical injury when an operator who is performing maintenance and inspection operates the power switch by another person.
従来技術には、次のような欠点があった。
従来は電源スイッチを閉とすることで制御電源が通電された。その後に続けて操作電源を閉とすることで動力電源も通電されて保守点検中の作業員が感電事故や稼動部に挟まれ身体障害を引き起こす問題があった。The prior art has the following drawbacks.
Conventionally, the control power supply is energized by closing the power switch. Subsequently, the operation power supply was closed, and the power supply was also energized. This caused a problem that a worker under maintenance and inspection was caught by an electric shock or an operation part, resulting in physical disability.
キースイッチおよび認証によって保守点検中に作業者以外の人が電源を投入して作業者が感電事故や身体に障害を引き起こす事故を防止することを特長とした保守点検安全電源スイッチである。 A maintenance / inspection safety power switch characterized in that a person other than the operator turns on the power during maintenance and inspection by the key switch and authentication to prevent the operator from getting an electric shock accident or an accident causing injury to the body.
本発明は従来の電源スイッチは電源スイッチを操作することで作業者以外の人も電源を通電することができたので、保守点検している作業者が感電事故や身体障害を引き起こす事故に遭う可能性があったが電源を切った状態では電源スイッチを操作して通電しようとした場合であっても電源を切るときに認証を登録してキースイッチを抜いた場合には合致する認証を入力しなければ電源が入らないようにすることで事故を防止する。 In the present invention, since the power switch of the conventional power switch can be operated by a person other than the worker by operating the power switch, the worker who is inspecting can encounter an electric shock accident or an accident causing physical disability. Even if you try to energize by operating the power switch when the power is turned off, if you register the authentication when you turn off the power and remove the key switch, enter the matching authentication. If it does not, the accident will be prevented by preventing the power from turning on.
以下、本発明の実施をするための最良の形態について説明する。
（イ）キースイッチＳＫを認証装置ＡＮの入力端子１および２に接続する。
（ロ）電源通電許可リレーＫＡを認証装置ＡＮのリレー出力に設ける。
（ハ）電源通電許可リレーＫＡのメイン接点に対して主回路通電スイッチＫＭ１および 制御通電スイッチＫＭ２を設ける。
（ニ）認証装置ＡＮは入力１および２の状態によって最適なリレー接点を供給する。
（ホ）動力電源スイッチＳＰを設ける。
本発明は、以上の構成よりなっている。
本発明は日常的な電源の入切操作はわずらわしさがないようキースイッチを使わないで電源スイッチのみで電源を簡便に操作できる。つまりキースイッチを操作しない場合には認証を必要とせず電源を入切できるようにする。逆にキースイッチを操作する場合は保守点検時に限定する。保守点検をする場合にはキースイッチを切の位置に回して認証を設定してからでなければ主電源を切ることができない。さらにキースイッチを抜くことで保守点検者以外の人によって機械の電源が入らないよう工夫している。保守点検の作業が終了したときキースイッチを差し込み入の位置に回した後に合致する認証を入力した場合だけ電源が入る構成とする。キースイッチを抜いた場合であっても電源の状態は保持される。また動力電源はスイッチＳＰを操作することで初めて出力を許可される。ここでの認証はテンキーで暗証番号を入力する方法と磁気やＩＣカードリーダーによって読み取る方法の併用が望ましいが使用する環境条件によっては一方に特化しても良いだろう。Hereinafter, the best mode for carrying out the present invention will be described.
(A) The key switch SK is connected to the
(B) A power supply energization permission relay KA is provided at the relay output of the authentication device AN.
(C) A main circuit energization switch KM1 and a control energization switch KM2 are provided for the main contact of the power supply energization permission relay KA.
(D) The authentication device AN supplies an optimum relay contact depending on the states of the
(E) A power supply switch SP is provided.
The present invention has the above configuration.
In the present invention, the power supply can be easily operated by using only the power switch without using the key switch so that the daily power on / off operation is not troublesome. That is, when the key switch is not operated, the power can be turned on and off without requiring authentication. Conversely, when operating the key switch, limit it to maintenance inspection. When performing maintenance and inspection, the main power can be turned off only after turning the key switch to the off position and setting the authentication. In addition, by removing the key switch, it is designed to prevent the machine from being turned on by anyone other than the maintenance inspector. When maintenance work is completed, the power is turned on only when a matching authentication is input after turning the key switch to the insertion position. Even when the key switch is removed, the power supply state is maintained. The power supply is allowed to output only when the switch SP is operated. The authentication here preferably uses a method of inputting a password with a numeric keypad and a method of reading with a magnetic or IC card reader, but depending on the environmental conditions used, it may be specialized in one.
Ｌ１ 動力電源第１相
Ｌ２ 動力電源第２相
Ｌ３ 動力電源第３相
Ｕ 動力電源主開閉器出力第１相
Ｖ 動力電源主開閉器出力第２相
Ｗ 動力電源主開閉器出力第３相
Ｒ１ 制御系出力Ｒ相
Ｓ１ 制御系出力Ｓ相
ＱＦ 電源スイッチ（遮断器）
ＴＣ ダウントランス
ＳＫ キースイッチ
ＳＰ 動力系通電許可スイッチ
ＳＴ テンキースイッチ
ＡＮ 認証装置
ＡＣＲ 磁気カードリーダー
ＫＡ 電源通電許可リレー
ＫＭ１ 動力通電スイッチ
ＫＭ２ 制御通電スイッチ
ＤＬ 数値表示部
１ ＡＮ入力１
２ ＡＮ入力２
３ ＡＮリレー出力L1 Power supply first phase L2 Power supply second phase L3 Power supply third phase U Power supply main switch output first phase V Power supply main switch output second phase W Power supply main switch output third phase R1 control System output R phase S1 Control system output S phase QF Power switch (breaker)
TC Down transformer SK Key switch SP Power system energization permission switch ST Numeric key switch AN Authentication device ACR Magnetic card reader KA Power energization permission relay KM1 Power energization switch KM2 Control energization switch DL
2
3 AN relay output
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006138269A JP2007129889A (en) | 2006-04-17 | 2006-04-17 | Safety power switch for maintenance and inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006138269A JP2007129889A (en) | 2006-04-17 | 2006-04-17 | Safety power switch for maintenance and inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2007129889A true JP2007129889A (en) | 2007-05-24 |
Family
ID=38152079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006138269A Pending JP2007129889A (en) | 2006-04-17 | 2006-04-17 | Safety power switch for maintenance and inspection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007129889A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300373A (en) * | 2014-10-22 | 2015-01-21 | 国家电网公司 | Electric power control device |
| KR20160056540A (en) * | 2014-11-12 | 2016-05-20 | 박양석 | Apparatus and method for monitoring/controlling for maintenance of the receiving and distributing board |
-
2006
- 2006-04-17 JP JP2006138269A patent/JP2007129889A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300373A (en) * | 2014-10-22 | 2015-01-21 | 国家电网公司 | Electric power control device |
| KR20160056540A (en) * | 2014-11-12 | 2016-05-20 | 박양석 | Apparatus and method for monitoring/controlling for maintenance of the receiving and distributing board |
| KR101668777B1 (en) | 2014-11-12 | 2016-10-24 | 박양석 | Apparatus and method for monitoring/controlling for maintenance of the receiving and distributing board |
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