JP2020012672A - Connection confirmation device - Google Patents

Connection confirmation device Download PDF

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JP2020012672A
JP2020012672A JP2018133630A JP2018133630A JP2020012672A JP 2020012672 A JP2020012672 A JP 2020012672A JP 2018133630 A JP2018133630 A JP 2018133630A JP 2018133630 A JP2018133630 A JP 2018133630A JP 2020012672 A JP2020012672 A JP 2020012672A
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connection
terminals
power supply
terminal
power
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JP7111534B2 (en
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秀美 西田
Hidemi Nishida
秀美 西田
高明 武末
Takaaki Takesue
高明 武末
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Kyuden Technosystems Corp
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Abstract

To provide a connection confirmation device capable of determining incorrect connection and whether contact with the connection is enough, even when a plurality of circuits are commonly connected at one side to one wiring terminal.SOLUTION: A connection confirmation device comprises a test plug which can be inserted into and take out of a test switch, and connection confirmation notifying means 8 electrically connected to the test plug. The test plug includes a plurality of connection plugs 13 on a WHM side, and a plurality of power supply side connection plugs 14 on a VCT side. The connection confirmation notifying means 8 comprises a measurement unit 19, a control unit 20, an output unit 21, a switching unit 22, and a power supply side switching unit 23. The control unit 20 controls a plurality of switches 24 of the switching unit 22, sequentially selects two connection plugs from a plurality of connection plugs 13, and connects the selected plugs to a plus terminal and a minus terminal of the measuring unit 19. The output unit 21 reports about a connection state between the WHM and the test switch on the basis of impedance measured by the measurement unit 19 and information about on and off the control unit 20.SELECTED DRAWING: Figure 3

Description

この発明は、各種の電気機器の設置工事を完了した後、送電前に配線状態の健全性を確認することができる結線確認装置に関するものであり、特に、計器用変圧変流器(Voltage and Current Transformer:以下「VCT」という。)及び電力量計(Watt‐Hour Meter:以下「WHM」という。)の設置工事を完了した後、送電の前に好適に利用される結線確認装置に関する。   The present invention relates to a connection confirmation device capable of confirming the soundness of a wiring state before power transmission after completion of installation work of various electric devices, and in particular, to a voltage transformer and a current transformer for an instrument. The present invention relates to a connection confirmation device that is suitably used before completing power transmission after completing installation work of a transformer (hereinafter, referred to as “VCT”) and a watt-hour meter (hereinafter, referred to as “WHM”).

VCTとWHM間の電圧端子と電流端子とが正しく結線されていなければ正常に電力量を測定できないことを考慮して、送電を行った後の活線状態において結線確認を行う技術は、例えば、特許文献1(特開2000−162299号公報)、特許文献2(特開2007−292581号公報)及び特許文献3(特開2015−169526号公報)に開示されているように、従来様々な提案がなされている。
しかし、VCTとWHM間の電圧端子と電流端子との接続を混線させた配線ミスを生じた場合、VCTの変圧器の二次側端子(二次側巻線)の短絡又は変流器の二次側端子(二次側巻線)の開放となることがあり、送電を行うことによって、焼損事故及び電力供給支障など重大な事故に至る恐れがあった。
Considering that the power amount cannot be measured normally unless the voltage terminal and the current terminal between the VCT and the WHM are correctly connected, a technique for performing connection confirmation in a live state after performing power transmission, for example, As disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-162299), Patent Document 2 (Japanese Patent Application Laid-Open No. 2007-292581) and Patent Document 3 (Japanese Patent Application Laid-Open No. 2015-169526), various proposals have been made. Has been made.
However, if a wiring error occurs in which the connection between the voltage terminal and the current terminal between the VCT and the WHM is mixed, a short circuit of the secondary terminal (secondary winding) of the transformer of the VCT or a current transformer of the current transformer may occur. The secondary terminal (secondary winding) could be opened, and power transmission could lead to serious accidents such as burnout and power supply failure.

また、特許文献4(特開平10−104306号公報)に記載されているように、制御装置などの改造や新設工事に当たり、制御盤又は中継盤からの外部配線接続が適切に実施されているかを電源投入前に確認するための電気配線チェック装置も提案されている(特に、請求項1〜3及び段落0001を参照)。
この電気配線チェック装置では、指定された配線端子に対して、マルチプレクサ12が電圧発生器13からパルス状の電圧を印加し、また、マルチプレクサ12により信号検出変換器14が端子板3の各端子に順次接続される。
そして、端子板3の全ての端子の中で印加パルス信号の戻ってくる端子と戻って来ない端子が、照合及び判定15で識別されるようになっている(特に、図2及び段落0007、0008を参照)。
Also, as described in Patent Document 4 (Japanese Patent Application Laid-Open No. 10-104306), when modifying or newly installing a control device or the like, it is determined whether the external wiring connection from the control panel or the relay panel is appropriately performed. An electrical wiring check device for checking before power-on has also been proposed (especially, refer to claims 1 to 3 and paragraph 0001).
In this electrical wiring checking device, the multiplexer 12 applies a pulse-like voltage from the voltage generator 13 to the designated wiring terminal, and the multiplexer 12 causes the signal detection converter 14 to apply to each terminal of the terminal plate 3. Connected sequentially.
Then, of all the terminals of the terminal plate 3, terminals that return the applied pulse signal and terminals that do not return are identified by the collation and determination 15 (particularly, FIG. 0008).

特開2000−162299号公報JP 2000-162299 A 特開2007−292581号公報JP 2007-292581 A 特開2015−169526号公報JP 2015-169526 A 特開平10−104306号公報JP-A-10-104306

しかし、特許文献4に記載されている電気配線チェック装置は、独立した閉回路を前提としており、指定された配線端子にパルス状の電圧を印加した時、どの端子に印加パルス信号が戻ってきたかによって、結線が正しいか否かを判定するようになっている。
そのため、指定された配線端子に複数の回路の片側が共通に接続されている場合には、誤結線があっても判定できず、結線の接触が十分か否か(配線中に高抵抗部が生じていないか)を判定することもできない。
本発明は、このような問題を解決し、指定された配線端子に複数の回路の片側が共通に接続されていても誤結線を判定できるようにするとともに、結線の接触が十分か否か、変圧器の二次短絡や変流器の二次開放の有無を判定できるようにすることを目的とする。
However, the electric wiring check device described in Patent Document 4 is based on an independent closed circuit, and when a pulsed voltage is applied to a specified wiring terminal, which terminal returns the applied pulse signal. Thus, it is determined whether or not the connection is correct.
Therefore, when one side of a plurality of circuits is commonly connected to the designated wiring terminal, it is not possible to determine even if there is an erroneous connection, and it is determined whether or not the contact of the connection is sufficient (a high-resistance portion is present in the wiring). Cannot be determined).
The present invention solves such a problem, and enables determination of erroneous connection even when one side of a plurality of circuits is commonly connected to a designated wiring terminal, and whether connection of the connection is sufficient or not, It is an object of the present invention to determine whether a secondary short-circuit of a transformer or a secondary open of a current transformer can be determined.

請求項1に係る発明の結線確認装置は、電気機器が有する複数の機器端子と結線される複数の機器用端子及び電源装置が有する複数の電源端子と結線される複数の電源用端子を備えているテストスイッチに嵌合させ、前記電源装置への送電前に使用する結線確認装置であって、
電気的接続状態にある前記複数の機器用端子と前記複数の電源用端子を、前記テストスイッチに嵌合させることにより電気的に切り離すテストプラグと、該テストプラグの一方の面に配置され、前記テストスイッチに嵌合させた時に、前記複数の機器用端子と各々電気的に接続される複数の接続プラグと、前記複数の機器端子と前記複数の機器用端子との結線状態を確認し、結線状態が正しいか否かを報知する結線確認報知手段を備え、
該結線確認報知手段は、複数のスイッチを有する切替部と、プラス端子及びマイナス端子を有しプラス端子とマイナス端子間に接続される回路のインピーダンスを測定する計測部と、前記複数のスイッチのオンオフを制御する制御部と、前記計測部で測定されたインピーダンスに関する情報及び前記制御部のオンオフに関する情報に基づいて前記複数の機器端子と前記複数の機器用端子との結線が正しいか否かを報知する出力部を有しており、
前記複数の接続プラグの一部又は全部と前記複数のスイッチの一端は各々電気的に接続され、前記複数のスイッチの他端は各々前記プラス端子又は前記マイナス端子と電気的に接続されていることを特徴とする。
The connection checking device according to the first aspect of the present invention includes a plurality of device terminals connected to a plurality of device terminals of the electric device and a plurality of power terminals connected to a plurality of power terminals of the power supply device. A connection check device to be used before transmitting power to the power supply device,
A test plug for electrically disconnecting the plurality of device terminals and the plurality of power supply terminals in an electrically connected state by fitting the plurality of power supply terminals to the test switch, and disposed on one surface of the test plug; When fitted to the test switch, a plurality of connection plugs respectively electrically connected to the plurality of device terminals, and a connection state between the plurality of device terminals and the plurality of device terminals is confirmed, Equipped with a connection confirmation notifying means for notifying whether the status is correct,
A connection unit having a plurality of switches, a measurement unit having a plus terminal and a minus terminal, and measuring an impedance of a circuit connected between the plus terminal and the minus terminal, and turning on and off the plurality of switches; And a control unit for controlling whether the connection between the plurality of device terminals and the plurality of device terminals is correct based on information on impedance measured by the measurement unit and information on on / off of the control unit. Output unit,
Part or all of the plurality of connection plugs and one ends of the plurality of switches are electrically connected, and the other ends of the plurality of switches are electrically connected to the plus terminal or the minus terminal, respectively. It is characterized by.

請求項2に係る発明の結線確認装置は、請求項1に係る発明の結線確認装置において、
前記テストプラグの他方の面に配置され、前記テストスイッチに嵌合させた時に、前記複数の電源用端子と各々電気的に接続される複数の電源側接続プラグと、複数の電源側スイッチを有する電源側切替部をさらに備え、
前記複数の電源側接続プラグの一部又は全部と前記複数の電源側スイッチの一端は各々電気的に接続され、前記複数の電源側スイッチの他端は各々前記プラス端子又は前記マイナス端子と電気的に接続されており、
前記制御部は、前記複数の電源側スイッチのオンオフも制御し、
前記出力部は、前記計測部で測定されたインピーダンスに関する情報及び前記制御部のオンオフに関する情報に基づいて前記複数の電源端子と前記複数の電源用端子との結線が正しいか否かも報知することを特徴とする。
A connection confirmation device according to a second aspect of the present invention is the connection confirmation device according to the first aspect,
A plurality of power supply side connection plugs which are arranged on the other surface of the test plug and are respectively electrically connected to the plurality of power supply terminals when fitted to the test switch, and a plurality of power supply side switches; It further includes a power supply side switching unit,
Some or all of the plurality of power supply side connection plugs are electrically connected to one ends of the plurality of power supply side switches, and the other ends of the plurality of power supply side switches are electrically connected to the plus terminal or the minus terminal, respectively. Connected to
The control unit also controls on / off of the plurality of power-side switches,
The output unit may also notify whether or not the connection between the plurality of power terminals and the plurality of power terminals is correct based on the information regarding the impedance measured by the measurement unit and the information regarding on / off of the control unit. Features.

請求項3に係る発明の結線確認装置は、請求項1又は2に係る発明の結線確認装置において、
前記複数の接続プラグと前記複数のスイッチの一端との間又は前記複数の電源側接続プラグと前記複数の電源側スイッチの一端との間に、ダミー抵抗、ダミーインダクター及びダミーキャパシターのいずれかを選択的に接続可能であることを特徴とする。
A connection confirmation device according to a third aspect of the present invention is the connection confirmation device according to the first or second aspect,
Between the plurality of connection plugs and one end of the plurality of switches, or between the plurality of power supply-side connection plugs and one end of the plurality of power-side switches, one of a dummy resistor, a dummy inductor, and a dummy capacitor. It is characterized by being selectively connectable.

請求項1に係る発明の結線確認装置によれば、制御部により複数のスイッチのオンオフを制御することにより、選択的に複数の機器用端子の二つを計測部のプラス端子とマイナス端子に接続して、プラス端子とマイナス端子間に接続される電気機器の回路のインピーダンスを測定することができる。
そして、計測部で測定されたインピーダンスに関する情報及び制御部のオンオフに関する情報に基づいて、複数の機器端子と複数の機器用端子との結線が正しいか否かを報知するので、複数の機器端子と複数の機器用端子との結線状態について、送電前に容易かつ迅速に確認することができる。
また、選択した機器用端子に電気機器の複数の回路の片側が共通に接続されていたとしても、それらの回路のインピーダンスが異なっていれば、結線が正しいか否かについて判定し報知することができる。
そのため、送電前の確認作業におけるヒューマンエラー対策を拡充できる。
According to the connection confirmation device of the first aspect of the present invention, the control unit controls on / off of the plurality of switches to selectively connect two of the plurality of device terminals to the plus terminal and the minus terminal of the measurement unit. Then, the impedance of the circuit of the electric device connected between the plus terminal and the minus terminal can be measured.
Then, based on the information on the impedance measured by the measurement unit and the information on the on / off of the control unit, it is notified whether or not the connection between the plurality of device terminals and the plurality of device terminals is correct. It is possible to easily and quickly check a connection state with a plurality of device terminals before power transmission.
In addition, even if one side of a plurality of circuits of the electric device is commonly connected to the selected device terminal, if the impedances of those circuits are different, it is possible to determine and notify whether the connection is correct or not. it can.
Therefore, it is possible to enhance measures against human error in the confirmation work before power transmission.

請求項2に係る発明の結線確認装置によれば、請求項1に係る発明の結線確認装置による効果に加え、複数の電源端子と複数の電源用端子との結線状態についても、送電前に容易かつ迅速に確認することができ、また、選択した電源用端子に電源装置の複数の回路の片側が共通に接続されていたとしても、それらの回路のインピーダンスが異なっていれば、結線が正しいか否かについて判定し報知することができる。   According to the connection confirmation apparatus of the second aspect, in addition to the effect of the connection confirmation apparatus of the first aspect, the connection state between the plurality of power terminals and the plurality of power terminals can be easily determined before power transmission. Even if one side of a plurality of circuits of the power supply is commonly connected to the selected power supply terminal, if the impedances of those circuits are different, the connection is correct. It is possible to determine and report whether or not it is not.

請求項3に係る発明の結線確認装置によれば、請求項1又は2に係る発明の結線確認装置による効果に加え、選択した機器用端子に電気機器の複数の回路又は選択した電源用端子に電源装置の複数の回路の片側が共通に接続され、かつ、共通に接続された複数の回路が同じインピーダンスであっても、複数の機器端子と複数の機器用端子との結線又は複数の電源端子と複数の電源用端子との結線について、誤結線及び結線の接触が十分か否かについて報知することができる。   According to the connection confirmation device of the invention according to claim 3, in addition to the effects of the connection confirmation device of the invention according to claim 1 or 2, a plurality of circuits of the electric device or a selected power supply terminal are connected to the selected device terminal. One side of a plurality of circuits of a power supply device is commonly connected, and even if a plurality of commonly connected circuits have the same impedance, a connection between a plurality of device terminals and a plurality of device terminals or a plurality of power supply terminals About the connection between the power supply terminal and the plurality of power supply terminals, and whether or not the connection of the wrong connection and the connection of the connection are sufficient.

結線確認装置の現場での使用概要を示す図。The figure which shows the outline | summary of use of the connection check apparatus on site. VCT1及びWHM3とテストスイッチ2との正常な結線状態を示す図。FIG. 4 is a diagram showing a normal connection state between VCT1 and WHM3 and a test switch 2. テストプラグ5及び結線確認報知手段8の構成を示す図。FIG. 3 is a diagram showing a configuration of a test plug 5 and a connection confirmation notifying unit 8. テストプラグ5及び結線確認報知手段8の変形例の構成を示す図。The figure which shows the structure of the modification of the test plug 5 and the connection confirmation notification means 8. 切替部のその他の変形例についての構成を示す図。The figure which shows the structure about the other modification of a switching part.

以下、実施例によって本発明の実施形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to examples.

図1は実施例1の結線確認装置の現場での使用概要を示す図である。
実施例1の結線確認装置は、VCT1とテストスイッチ2との結線状態及びWHM3とテストスイッチ2との結線状態を確認するために使用されるものである。
図1及び図2に示すように、VCT1は、電源側から配電線路4を介して配電される高電圧を低電圧に変成するVT(計器用変圧器)と大電流を小電流に変成するCT(計器用変流器)とからなっており、WHM3は、VCT1を経由して需要家の負荷に供給される電力量を測定するためのものである。
なお、図2では便宜上、図1では上側にあるVCT1を下側に描いてある。
FIG. 1 is a diagram illustrating an outline of use of the connection confirmation device according to the first embodiment at a site.
The connection confirmation apparatus of the first embodiment is used to confirm the connection state between the VCT 1 and the test switch 2 and the connection state between the WHM 3 and the test switch 2.
As shown in FIGS. 1 and 2, the VCT 1 is a VT (instrument transformer) that transforms a high voltage distributed from a power source via a distribution line 4 to a low voltage and a CT that transforms a large current into a small current. (Instrument current transformer), and the WHM 3 is for measuring the amount of power supplied to the load of the customer via the VCT 1.
In FIG. 2, for convenience, in FIG. 1, VCT1 on the upper side is drawn on the lower side.

テストスイッチ2は、図1及び図2に示すように、WHM3の交換作業を無停電で行うために、VCT1とWHM3との間に配置される。
また、テストスイッチ2は、テストプラグ5を挿抜可能なものとなっており、VCT1に接続される複数の電源用端子9(1S,P1,P3,3S,3L,P2,1L)と、WHM3に接続される複数の機器用端子10(1S,P1,P3,3S,3L,P2,1L)とが、挿入口の上面及び下面に相対向して配設されている。
そして、複数の電源用端子9と複数の機器用端子10は、テストプラグ5未挿入時においては電気的に接続され、テストプラグ5の挿入により電気的に切り離されるようになっている。
さらに、VCT1に設けてある複数の電源端子11(1S,P1,P3,3S,3L,P2,1L)とテストスイッチ2に設けてある複数の電源用端子9は6本の電線6で接続され、WHM3に設けてある複数の機器端子12(1S,P1,P3,3S,3L,P2,1L)とテストスイッチ2に設けてある複数の機器用端子10は7本の電線7で接続される。
詳細は後述するが、実施例1の結線確認装置は、テストプラグ5をテストスイッチ2に嵌合させた状態で使用され、テストプラグ5には結線確認報知手段8が接続されている。
As shown in FIGS. 1 and 2, the test switch 2 is arranged between the VCT 1 and the WHM 3 in order to perform the replacement work of the WHM 3 without interruption.
The test switch 2 is capable of inserting and removing the test plug 5, and is connected to a plurality of power supply terminals 9 (1S, P1, P3, 3S, 3L, P2, 1L) connected to the VCT 1 and to the WHM 3. A plurality of device terminals 10 (1S, P1, P3, 3S, 3L, P2, 1L) to be connected are disposed opposite to each other on the upper and lower surfaces of the insertion slot.
The plurality of power supply terminals 9 and the plurality of device terminals 10 are electrically connected when the test plug 5 is not inserted, and are electrically disconnected by inserting the test plug 5.
Further, a plurality of power terminals 11 (1S, P1, P3, 3S, 3L, P2, 1L) provided on the VCT 1 and a plurality of power terminals 9 provided on the test switch 2 are connected by six electric wires 6. , The plurality of device terminals 12 (1S, P1, P3, 3S, 3L, P2, 1L) provided on the WHM 3 and the plurality of device terminals 10 provided on the test switch 2 are connected by seven wires 7. .
Although details will be described later, the connection confirmation device of the first embodiment is used in a state where the test plug 5 is fitted to the test switch 2, and the connection confirmation notification means 8 is connected to the test plug 5.

図2に示すように、テストスイッチ2の電源用端子9のうち3Lと1Lとの間にはショートバーが接続されているが、6本の電線6及び7本の電線7を接続する作業時に、このショートバーを誤って取り外してしまうことが誤結線要因の1つである。
また、VCT1に設けてある複数の電源端子11(1S,P1,P3,3S,3L,P2,1L)とテストスイッチ2に設けてある複数の電源用端子9との接続を、6本の電線6を用いて行う場合は3L-1Lにショートバーを取り付けた状態が正規であるが、6本の電線6に代えて7本の電線で接続する場合もあり、そうした場合には3L-1Lのショートバーを取り外した状態が正規となる。この作業の違いにより作業者がショートバーを取り外し忘れてしまうことも誤結線要因の1つである。
さらに、図2(B)に示すように、VCT1の電源側及び負荷側が逆相接続の場合は、テストスイッチ2の複数の電源用端子9のうちP1とP3に接続しているケーブルを入れ替え、1Sと3Sに接続しているケーブルを入れ替えて、WHM3に接続される電圧相回転が正相順となるように接続するが、テストスイッチ2の複数の電源用端子9の色の並びが図2(A)に示す正相接続とは異なるため、作業者が誤って接続してしまうことが誤結線要因の1つである。
As shown in FIG. 2, a short bar is connected between 3L and 1L among the power supply terminals 9 of the test switch 2, but when connecting the six electric wires 6 and the seven electric wires 7, Inadvertent removal of the short bar is one of the causes of incorrect connection.
The connection between the plurality of power terminals 11 (1S, P1, P3, 3S, 3L, P2, 1L) provided on the VCT 1 and the plurality of power terminals 9 provided on the test switch 2 is made by six electric wires. When using 6L, the short bar is normally attached to 3L-1L, but there are also cases where it is connected with 7 wires instead of 6 wires 6, in which case the 3L-1L The state where the short bar is removed is normal. One of the factors of the erroneous connection is that the worker forgets to remove the short bar due to the difference in the work.
Further, as shown in FIG. 2B, when the power supply side and the load side of the VCT 1 are connected in opposite phases, the cables connected to P1 and P3 among the plurality of power supply terminals 9 of the test switch 2 are replaced. The cables connected to the 1S and 3S are switched so that the voltage phase rotations connected to the WHM 3 are connected in the normal phase order. The arrangement of the colors of the power supply terminals 9 of the test switch 2 is shown in FIG. Since the connection is different from the normal-phase connection shown in (A), an erroneous connection by an operator is one of the factors of the incorrect connection.

それから、各端子を接続する6本の電線6及び7本の電線7は、端子の種類毎に被覆色を分けている場合と、被覆色が分けられていない場合がある。
また、電線接続先の電源端子11及び機器端子12にも端子の種類の記号並びに識別色の表示がある。
そして、被覆色を分けている場合は同じ色の端子を7本の電線7で接続するだけにもかかわらず、作業者の慣れや思い込みなどのヒューマンエラーに起因して、誤結線しているケースも発生しており、被覆色が分けられていない場合には、作業者が結線を誤ってしまう確率はずっと高くなる。
また、1つのVCT1に2つのWHMを接続することもあり、そうした場合にはテストスイッチを2つ増設し3つのテストスイッチを指示通りに接続することが必要となる。
そして、増設した2つのテストスイッチの電源用端子3L同士を接続する電線と1L同士を接続する電線は色分けされていないため、これらの端子を間違えて接続することが誤結線要因の1つとなっている。
Then, the six electric wires 6 and the seven electric wires 7 connecting the respective terminals may have different coating colors depending on the type of terminal, or may not have different coating colors.
In addition, the power supply terminal 11 and the equipment terminal 12 to which the electric wires are connected also have terminal type symbols and identification colors.
When the covering colors are different, the terminals of the same color are simply connected by seven electric wires 7, but are incorrectly connected due to human error such as familiarity or assumption of an operator. If the coating colors are not divided, the probability that the operator will make a wrong connection is much higher.
Also, two WHMs may be connected to one VCT1, and in such a case, it is necessary to add two test switches and connect three test switches as instructed.
The wires connecting the power supply terminals 3L and the wires connecting the 1L power supply terminals of the two additional test switches are not color-coded, so connecting these terminals incorrectly is one of the causes of incorrect connection. I have.

テストプラグ5は、図3(A)に示すように、上面(WHM側)に複数の接続プラグ13(1S,P1,P3,3S,3L,P2,1L)がテストスイッチ2の複数の機器用端子10に対応する位置に配設され、図3(B)に示すように、下面(VCT側)に複数の電源側接続プラグ14(1S,P1,P3,3S,3L,P2,1L)がテストスイッチ2の複数の電源用端子9に対応する位置に配設される。
なお、テストプラグ5はテストスイッチ2と嵌合する向きが固定される機構(逆向きでは挿入できない機構)となっているので、作業者が向きを誤って使用することはない。
As shown in FIG. 3A, the test plug 5 has a plurality of connection plugs 13 (1S, P1, P3, 3S, 3L, P2, 1L) on the upper surface (WHM side) for a plurality of devices of the test switch 2. 3B, a plurality of power supply side connection plugs 14 (1S, P1, P3, 3S, 3L, P2, 1L) are provided on the lower surface (VCT side) as shown in FIG. The test switch 2 is provided at a position corresponding to the plurality of power supply terminals 9.
Since the test plug 5 has a mechanism in which the direction of engagement with the test switch 2 is fixed (mechanism that cannot be inserted in the reverse direction), the operator does not use the direction incorrectly.

結線確認装置は、図3に示すように、テストプラグ5の複数の接続プラグ13と結線確認報知手段8に設けられた複数の接続端子15(1S,P1,P3,3S,3L,P2,1L)を、それぞれ対応させて複数の接続線16で接続するとともに、テストプラグ5の複数の電源側接続プラグ14と結線確認報知手段8に設けられた複数の電源側接続端子17(1S,P1,P3,3S,3L,P2,1L)をそれぞれ対応させて複数の電源側接続線18で接続して構成される。
そして、テストプラグ5と結線確認報知手段8との接続は、運搬や保管時の利便性を高めるために、コネクタを用いて行えるようにしても良い。
そうした場合、コネクタは結線確認報知手段8の適宜の箇所に別々に設けても良いが、テストスイッチ2と同様に、挿入口の上面及び下面に相対向して複数の接続端子15及び複数の電源側接続端子17を設けたものとするとともに、複数の接続線16及び複数の電源側接続線18の一端に、上下面に複数の接続用プラグを有するコネクタプラグを設け、コネクタプラグを挿入口に嵌合させるだけで接続できるようにするとより良い。
また、その場合、複数の接続端子15と複数の電源側接続端子17には別形状のコネクタプラグを用い、誤挿入を防止する機構とするとさらに良い。
As shown in FIG. 3, the connection confirmation device includes a plurality of connection plugs 13 of the test plug 5 and a plurality of connection terminals 15 (1S, P1, P3, 3S, 3L, P2, 1L) provided in the connection confirmation notifying means 8. ) Are connected by a plurality of connection lines 16 in correspondence with each other, and a plurality of power supply side connection terminals 17 (1S, P1, P1) provided on the plurality of power supply side connection plugs 14 of the test plug 5 and the connection confirmation notifying means 8. P3, 3S, 3L, P2, 1L) are connected to each other by a plurality of power supply side connection lines 18.
Then, the connection between the test plug 5 and the connection confirmation notifying means 8 may be made by using a connector in order to enhance the convenience during transportation and storage.
In such a case, the connector may be separately provided at an appropriate position of the connection confirmation notifying means 8, but similarly to the test switch 2, the plurality of connection terminals 15 and the plurality of power Side connection terminals 17 are provided, and a connector plug having a plurality of connection plugs on upper and lower surfaces is provided at one end of the plurality of connection lines 16 and the plurality of power supply side connection lines 18, and the connector plug is inserted into an insertion port. It is better to be able to connect simply by fitting.
Further, in this case, it is more preferable to use connector plugs of different shapes for the plurality of connection terminals 15 and the plurality of power supply side connection terminals 17 so as to prevent erroneous insertion.

結線確認報知手段8は、図3に示すように、計測部19、制御部20及び出力部21を有するとともに、複数の接続端子15と計測部19との間に配置される切替部22、複数の電源側接続端子17と計測部19との間に配置される電源側切替部23を有している。
計測部19は、プラス端子とマイナス端子を備え、プラス端子とマイナス端子間のインピーダンス(インダクタンス、キャパシタンス及びレジスタンス)を測定できる。
そして、プラス端子は、切替部22の4つのスイッチ及び電源側切替部23の5つのスイッチを介して、それぞれ複数の接続端子15のうちの4つの端子(1S,P1,P3,3S)及び複数の電源側接続端子17のうちの5つの端子(1S,P1,P3,3S,3L)と接続されており、マイナス端子は、切替部22の3つのスイッチ及び電源側切替部23の2つのスイッチを介して、それぞれ複数の接続端子15のうちの3つの端子(3L,P2,1L)及び複数の電源側接続端子17のうちの2つの端子(P2,1L)と接続されている。
As shown in FIG. 3, the connection confirmation notifying unit 8 includes a measurement unit 19, a control unit 20, and an output unit 21, and includes a switching unit 22 disposed between the plurality of connection terminals 15 and the measurement unit 19. And a power supply side switching unit 23 disposed between the power supply side connection terminal 17 and the measuring unit 19.
The measuring unit 19 has a plus terminal and a minus terminal, and can measure impedance (inductance, capacitance, and resistance) between the plus terminal and the minus terminal.
The plus terminal is connected to four terminals (1S, P1, P3, 3S) and a plurality of connection terminals 15 through the four switches of the switching unit 22 and the five switches of the power supply switching unit 23, respectively. Are connected to five terminals (1S, P1, P3, 3S, 3L) of the power supply side connection terminals 17, and three switches of the switching unit 22 and two switches of the power supply side switching unit 23 Are connected to three terminals (3L, P2, 1L) of the plurality of connection terminals 15 and two terminals (P2, 1L) of the plurality of power supply side connection terminals 17, respectively.

制御部20は、切替部22の複数のスイッチ24及び電源側切替部23の複数の電源側スイッチ25を個別にオンオフ制御することができ、複数の接続端子15のうちの4つの端子(1S,P1,P3,3S)及び複数の電源側接続端子17のうちの5つの端子(1S,P1,P3,3S,3L)から1つの端子を選択して計測部19のプラス端子に接続し、複数の接続端子15のうちの3つの端子(3L,P2,1L)及び複数の電源側接続端子17のうちの2つの端子(P2,1L)から1つの端子を選択して計測部19のマイナス端子に接続するように制御するものである。
なお、複数の接続端子15のうちの4つの端子(1S,P1,P3,3S)から1つの端子を選択してプラス端子に接続する時には、複数の接続端子15のうちの3つの端子(3L,P2,1L)から1つの端子を選択してマイナス端子に接続するように制御され、複数の電源側接続端子17のうちの5つの端子(1S,P1,P3,3S,3L)から1つの端子を選択してプラス端子に接続する時には、複数の電源側接続端子17のうちの2つの端子(P2,1L)から1つの端子を選択してマイナス端子に接続するように制御される。
また、制御部20は、プラス端子とマイナス端子に接続される端子を、予め決められた順番で選択制御するようになっている。
The control unit 20 can individually control on / off of the plurality of switches 24 of the switching unit 22 and the plurality of power-side switches 25 of the power-side switching unit 23, and the four terminals (1S, P1, P3, 3S) and five terminals (1S, P1, P3, 3S, 3L) of the plurality of power supply side connection terminals 17 are selected and connected to the plus terminal of the measuring unit 19, One of three terminals (3L, P2, 1L) of the connection terminals 15 and two terminals (P2, 1L) of the plurality of power supply side connection terminals 17 is selected, and the minus terminal of the measuring unit 19 is selected. It is controlled to connect to.
When one terminal is selected from the four terminals (1S, P1, P3, 3S) of the plurality of connection terminals 15 and connected to the plus terminal, three terminals (3L) of the plurality of connection terminals 15 are selected. , P2, 1L) and one terminal is controlled to be connected to the negative terminal, and one terminal is selected from five terminals (1S, P1, P3, 3S, 3L) of the plurality of power supply side connection terminals 17. When a terminal is selected and connected to the plus terminal, control is performed so that one terminal is selected from two terminals (P2, 1L) of the plurality of power supply side connection terminals 17 and connected to the minus terminal.
Further, the control unit 20 selectively controls terminals connected to the plus terminal and the minus terminal in a predetermined order.

出力部21は、計測部19で測定されたインピーダンスに関する情報と制御部20のオンオフに関する情報に基づいて、制御部20で選択された2つの接続端子又は電源側接続端子について、結線が正しく十分になされている時に測定されるべきインピーダンスと測定されたインピーダンスとを比較して、選択された2つの接続端子又は電源側接続端子における結線が正しいか否か及び十分か否かを判定し、順次選択された2つの接続端子又は電源側接続端子における結線が正しいか否か及び十分か否かの判定結果を総合して、WHM3の複数の機器端子12とテストスイッチ2の複数の機器用端子10との結線状態及びVCT1の複数の電源端子11とテストスイッチ2の複数の電源用端子9との結線状態について液晶表示器、ランプ及びブザーを用いて報知するものである。
なお、判定結果についての報知は、液晶表示器又はランプのみで行っても良く、プリンタでの紙出力や通信手段を用いてパソコン等へ出力によって行っても良い。
The output unit 21 is configured such that, based on the information on the impedance measured by the measurement unit 19 and the information on on / off of the control unit 20, the connection between the two connection terminals or the power supply side connection terminal selected by the control unit 20 is correct and sufficient. By comparing the impedance to be measured at the time of the connection with the measured impedance, it is determined whether or not the connection at the selected two connection terminals or the power supply side connection terminal is correct and sufficient, and sequentially selected. The results of the determination as to whether or not the connection at the two connection terminals or the power supply side connection terminal is correct and whether the connection is sufficient are combined to determine the plurality of device terminals 12 of the WHM 3 and the plurality of device terminals 10 of the test switch 2. And the connection between the plurality of power supply terminals 11 of the VCT 1 and the plurality of power supply terminals 9 of the test switch 2. It is intended to notify with users.
The notification of the determination result may be made only by a liquid crystal display or a lamp, or may be made by paper output by a printer or output to a personal computer or the like using communication means.

実施例1の結線確認報知手段8における誤結線の識別方法について説明する。
(1)接続先を確認する複数の電源端子11、6本の電線6及び複数の電源用端子9について、複数の回路の片側が共通に接続されている端子(以下「共通端子」という。)と共通に接続されていない端子(以下「回路端子」という。)を識別する。
そのために、全ての配線端子間のインピーダンスを測定、記憶し、測定したインピーダンスの大小関係を比較する。
例えば、インダクタンス又は抵抗を測定する場合であれば、共通端子と回路端子間の測定値は回路単独の値であり、回路端子と回路端子間の測定値は介在する回路を直列合成した値となることから、共通端子を特定することが可能である。また、共通端子が複数ある場合は、測定値が最も低い測定点の端子を共通端子であると特定できる。
そして、共通端子を特定できれば、共通端子と回路端子の誤接続を判断することができ、また、共通端子を基準とした回路単独の計測値を得ることが可能となる。
さらに、回路端子相互の誤接続は、事前に接続されるべき端子と接続される複数の回路のインピーダンスを関連付けておき、測定したインピーダンスが事前に関連付けられたインピーダンスの範囲(しきい値)内であれば異常なしと判断し、範囲外であれば異常ありと判断して、変圧器の二次短絡や変流器の二次開放に至る誤結線を識別する。
A method for identifying an incorrect connection in the connection confirmation notifying means 8 according to the first embodiment will be described.
(1) Regarding the plurality of power terminals 11, the six electric wires 6, and the plurality of power terminals 9 for checking the connection destination, terminals to which one side of the plurality of circuits is commonly connected (hereinafter, referred to as "common terminal"). And terminals that are not connected in common (hereinafter referred to as “circuit terminals”).
For this purpose, the impedance between all the wiring terminals is measured and stored, and the magnitude relationships of the measured impedances are compared.
For example, when measuring inductance or resistance, the measured value between the common terminal and the circuit terminal is a value of the circuit alone, and the measured value between the circuit terminal and the circuit terminal is a value obtained by combining the intervening circuits in series. Therefore, it is possible to specify the common terminal. When there are a plurality of common terminals, the terminal at the measurement point having the lowest measured value can be specified as the common terminal.
If the common terminal can be specified, erroneous connection between the common terminal and the circuit terminal can be determined, and a measurement value of the circuit alone based on the common terminal can be obtained.
Further, the incorrect connection between the circuit terminals is determined in advance by associating the impedance of a plurality of circuits to be connected with the terminal to be connected in advance, and measuring the impedance within a range (threshold) of the previously associated impedance. If it is, it is determined that there is no abnormality, and if it is out of the range, it is determined that there is an abnormality, and an erroneous connection leading to a secondary short circuit of the transformer or a secondary opening of the current transformer is identified.

(2)テストスイッチ2の電源用端子9のうち3Lと1Lとの間に接続されているショートバーを誤って取り外してしまう誤結線の場合には、電源用端子9の3L-1L間に回路が構成されず開放状態となることから、事前に、短絡されている場合(ショートバー有り)と開放されている場合(ショートバー無し)について、インピーダンスの範囲(しきい値)を設定しておけば識別することができる。
(3)上記(2)の誤結線であって、6本の電線6の箇所を7本の電線で接続する場合においては、テストスイッチ2の電源用端子9の3L-1Lにショートバーが無い状態でもVCT1の電源端子11の3L-P2-1L間にショートバーが設置されているため、6本の電線で接続する場合とは異なり開放状態とならない。
そのため、回路構成上のVCT1とテストスイッチ2の間に接続する6本の電線6の長さ分のインダクタンスの違いを元に、6本の電線6を使用している時と同じく、事前にインピーダンスに関する情報を元にインピーダンスの範囲(しきい値)を設定しておけばショートバーの無い状態を識別することができる。
なお、この識別方法では、6本の電線6の長さが非常に短い場合には識別できなくなるおそれもあるが、通常はVCT1とテストスイッチ2の標準的な設置位置関係から導き出される6本の電線6の長さに基づいてインピーダンスの範囲(しきい値)を設定できるので、ショートバーの無い状態の識別は可能である。
(2) In the case of erroneous connection in which the short bar connected between 3L and 1L among the power supply terminals 9 of the test switch 2 is accidentally removed, a circuit is provided between the power supply terminals 9 and 3L-1L. Is not configured, and is in an open state. Therefore, in advance, the impedance range (threshold) can be set for a short circuit (with a short bar) and an open circuit (without a short bar). Can be identified.
(3) In the case of the misconnection in (2) above, where the six wires 6 are connected by seven wires, there is no short bar at 3L-1L of the power supply terminal 9 of the test switch 2. Even in the state, since the short bar is provided between 3L and P2-1L of the power supply terminal 11 of the VCT 1, the state is not opened unlike the case where six electric wires are used for connection.
Therefore, based on the difference in inductance between the lengths of the six wires 6 connected between the VCT 1 and the test switch 2 in the circuit configuration, the impedance is determined in advance in the same manner as when using the six wires 6. If an impedance range (threshold) is set on the basis of the information regarding the short bar, a state without a short bar can be identified.
In this identification method, if the length of the six electric wires 6 is very short, it may not be possible to identify them. However, usually, the six electric wires 6 derived from the standard installation positional relationship between the VCT 1 and the test switch 2 are used. Since the range of the impedance (threshold) can be set based on the length of the electric wire 6, it is possible to identify the state without the short bar.

図4は、実施例2の結線確認装置におけるテストプラグ5及び結線確認報知手段8を示す図である。
なお、実施例2の結線確認装置の現場での使用概要、VCT1とテストスイッチ2との正常な結線状態及びWHM3とテストスイッチ2との正常な結線状態は、実施例1と同様図1、2で示されるので、実施例2の使用概要や正常な結線状態等については説明を省略する。
また、テストプラグ5、複数の接続端子15、複数の電源側接続端子17、複数の接続線16、複数の電源側接続線18、計測部19、制御部20及び出力部21についても、図3に示す実施例1と同様であるので、説明を省略するとともに同じ番号を用いる。
FIG. 4 is a diagram illustrating the test plug 5 and the connection confirmation notifying unit 8 in the connection confirmation device according to the second embodiment.
The outline of use of the connection confirmation device of the second embodiment at the site, the normal connection state between the VCT 1 and the test switch 2 and the normal connection state between the WHM 3 and the test switch 2 are the same as in the first embodiment shown in FIGS. Therefore, the description of the outline of use and the normal connection state of the second embodiment will be omitted.
In addition, the test plug 5, the plurality of connection terminals 15, the plurality of power supply connection terminals 17, the plurality of connection wires 16, the plurality of power supply connection wires 18, the measurement unit 19, the control unit 20, and the output unit 21 are also illustrated in FIG. And therefore, the description is omitted and the same numbers are used.

実施例2の結線確認装置が実施例1の結線確認装置と異なるところは、切替部26が複数の接続端子15全部に対応する複数のスイッチ28を備えている点、電源側切替部27が複数の電源側接続端子17全部に対応する複数の電源側スイッチ29を備えている点、及び各スイッチ及び電源側スイッチが複数の接続端子15及び複数の電源側接続端子17をプラス端子及びマイナス端子のいずれにも選択的に接続できるようになっている点である。
そして、実施例2の結線確認装置によれば、複数の接続端子15から任意の2つを選択してプラス端子とマイナス端子に接続でき、また、複数の電源側接続端子17から任意の2つを選択してプラス端子とマイナス端子に接続できる。
そのため、計測部19を用いて全ての2端子間のインピーダンスを測定することができるので、VCT1やWHM3に限らず、様々な電気機器について、テストスイッチ2と電気機器との結線が正しいか否か及び十分か否かを自由に判定することができる。
The connection confirmation device of the second embodiment differs from the connection confirmation device of the first embodiment in that the switching unit 26 includes a plurality of switches 28 corresponding to all of the plurality of connection terminals 15, and the power supply side switching unit 27 includes a plurality of switches. A plurality of power supply side switches 29 corresponding to all the power supply side connection terminals 17, and each switch and the power supply side switch connect the plurality of connection terminals 15 and the plurality of power supply side connection terminals 17 to a plus terminal and a minus terminal. The point is that it can be selectively connected to any of them.
According to the connection confirmation device of the second embodiment, any two of the plurality of connection terminals 15 can be selected and connected to the plus terminal and the minus terminal. Can be connected to the plus and minus terminals.
Therefore, since the impedance between all the two terminals can be measured using the measuring unit 19, whether or not the connection between the test switch 2 and the electric device is correct for not only VCT1 and WHM3 but also various electric devices. And whether it is sufficient or not can be freely determined.

実施例1及び実施例2の結線確認装置に関する変形例を列記する。
(1)実施例1及び実施例2の結線確認装置は、VCT1とWHM3との間にテストスイッチ2を備えるものであったが、VCT1とWHM3に限らず、適宜の電気機器と電源装置との間にテストスイッチを備えるものに対しても適用可能である。
(2)実施例1及び実施例2の結線確認装置は、VCT1の複数の電源端子11とテストスイッチ2の複数の電源用端子9との結線が正しいか否か及び十分か否かを判定するとともに、WHM3の複数の機器端子12とテストスイッチ2の複数の機器用端子10との結線が正しいか否か及び十分か否かを判定し、判定結果を報知するものであったが、結線が正しいか否かだけを判定し、その判定結果について報知するものとしても良い。
Modifications relating to the connection confirmation device of the first and second embodiments will be listed.
(1) Although the connection confirmation devices of the first and second embodiments include the test switch 2 between the VCT 1 and the WHM 3, the present invention is not limited to the VCT 1 and the WHM 3, but may be any suitable electric device and power supply device. The present invention is also applicable to a device having a test switch in between.
(2) The connection confirmation devices of the first and second embodiments determine whether or not the connection between the plurality of power terminals 11 of the VCT 1 and the plurality of power terminals 9 of the test switch 2 is correct and whether or not the connection is sufficient. At the same time, it is determined whether or not the connections between the plurality of device terminals 12 of the WHM 3 and the plurality of device terminals 10 of the test switch 2 are correct and sufficient, and the determination result is reported. It is also possible to judge only whether or not it is correct, and to inform about the judgment result.

(3)実施例1及び実施例2の結線確認装置は、テストプラグ5上面(WHM側)及び下面(VCT側)に、それぞれ複数の接続プラグ13及び複数の電源側接続プラグ14が配設され、複数の接続プラグ13は複数の接続端子15と接続され、複数の電源側接続プラグ14は複数の電源側接続端子17と接続されていたが、いずれか一方の結線状態を確認するだけで良ければ、複数の接続プラグ13及び複数の電源側接続プラグ14のいずれか一方だけを配設し、複数の接続端子15及び複数の電源側接続端子17のいずれか一方だけを設けて、それらを複数の接続線16又は複数の電源側接続線18で接続するとともに、切替部22、24及び電源側切替部23、25の一方は省略しても良い。
(4)実施例1及び実施例2の結線確認装置において、複数の接続プラグ13と複数のスイッチ24、28との間の複数の接続線16の全部又は一部に、ダミー抵抗、ダミーインダクター及びダミーキャパシターのいずれかを接続しても良く、また、複数の電源側接続プラグ14と複数の電源側スイッチ25、29との間の複数の電源側接続線18の全部又は一部に、ダミー抵抗、ダミーインダクター及びダミーキャパシターのいずれかを接続しても良い。
そうすることにより、複数の電源側接続端子17のうちの1つの端子にVCT1の複数の回路の片側が共通に接続され、かつ、共通に接続された複数の回路が同じインピーダンスであっても、VCT1の複数の電源端子11とテストスイッチ2の複数の電源用端子9との結線が正しいか否か及び十分か否かについて判定し報知することができ、また、複数の接続端子15のうちの1つの端子にWHM3の複数の回路の片側が共通に接続され、かつ、共通に接続された複数の回路が同じインピーダンスであっても、WHM3の複数の機器端子12とテストスイッチ2の複数の機器用端子10との結線が正しいか否か及び十分か否かについて判定し報知することができる。
(3) In the connection confirmation devices of the first and second embodiments, a plurality of connection plugs 13 and a plurality of power supply-side connection plugs 14 are disposed on the upper surface (WHM side) and the lower surface (VCT side) of the test plug 5, respectively. Although the plurality of connection plugs 13 are connected to the plurality of connection terminals 15 and the plurality of power supply-side connection plugs 14 are connected to the plurality of power-supply-side connection terminals 17, it is sufficient to check only one of the connection states. For example, only one of the plurality of connection plugs 13 and the plurality of power supply connection plugs 14 is provided, and only one of the plurality of connection terminals 15 and the plurality of power supply connection terminals 17 is provided. And one of the switching units 22 and 24 and the power supply switching units 23 and 25 may be omitted.
(4) In the connection confirmation devices of the first and second embodiments, all or some of the plurality of connection lines 16 between the plurality of connection plugs 13 and the plurality of switches 24 and 28 are provided with a dummy resistor and a dummy inductor. And a plurality of power supply side connection lines 18 between the plurality of power supply side connection plugs 14 and the plurality of power supply side switches 25 and 29. Any of a resistor, a dummy inductor, and a dummy capacitor may be connected.
By doing so, even if one of the plurality of circuits of VCT1 is commonly connected to one of the plurality of power supply side connection terminals 17 and the plurality of commonly connected circuits have the same impedance, It is possible to determine and notify whether or not the connection between the plurality of power terminals 11 of the VCT 1 and the plurality of power terminals 9 of the test switch 2 is correct and whether the connection is sufficient. Even if one side of the plurality of circuits of the WHM 3 is commonly connected to one terminal and the plurality of commonly connected circuits have the same impedance, the plurality of device terminals 12 of the WHM 3 and the plurality of devices of the test switch 2 It is possible to determine and report whether or not the connection with the terminal 10 is correct and whether or not the connection is sufficient.

(5)実施例1又は実施例2の切替部22、24に代えて、図5(A)又は図5(B)に示す切替部としても良い。
なお、図5(A)に示す切替部30は、複数の機器端子12のうち1Lをマイナス端子に接続し、1S,P1,P3,3S,3L,P2のうちのいずれか1つをプラス端子に接続すればインピーダンスを測定できる場合に有効であり、図5(B)に示す切替部31は、複数の機器端子12のうち3L,P2,1Lのいずれかを計測部19のマイナス端子に接続し、1S,P1,P3,3Sのうちのいずれか1つをプラス端子に接続すればインピーダンスを測定できる場合に有効である。
このように、切替部及び電源側切替部の複数のスイッチの態様は、結線状態を確認する電気機器や電源装置の回路構成に応じて適宜変更することができる。
すなわち、複数の接続プラグ13の一部又は全部と複数のスイッチの一端は各々電気的に接続され、複数のスイッチの他端は各々プラス端子又はマイナス端子と電気的に接続されていれば良いということができ、また、複数の電源側接続プラグ14の一部又は全部と複数の電源側スイッチの一端は各々電気的に接続され、複数の電源側スイッチの他端は各々プラス端子又はマイナス端子と電気的に接続されていれば良いということができる。
(5) Instead of the switching units 22 and 24 of the first or second embodiment, a switching unit shown in FIG. 5A or 5B may be used.
The switching unit 30 shown in FIG. 5A connects 1L of the plurality of device terminals 12 to a minus terminal, and connects one of 1S, P1, P3, 3S, 3L, and P2 to a plus terminal. 5B is effective when the impedance can be measured. The switching unit 31 shown in FIG. 5B connects one of 3L, P2, and 1L among the plurality of device terminals 12 to the minus terminal of the measuring unit 19. However, if any one of 1S, P1, P3, and 3S is connected to the plus terminal, it is effective when the impedance can be measured.
As described above, the mode of the plurality of switches of the switching unit and the power supply-side switching unit can be appropriately changed according to the circuit configuration of the electric device or the power supply device for checking the connection state.
That is, one or more of the plurality of connection plugs 13 and one end of the plurality of switches may be electrically connected, and the other end of the plurality of switches may be electrically connected to the plus terminal or the minus terminal, respectively. In addition, a part or all of the plurality of power supply side connection plugs 14 and one ends of the plurality of power supply side switches are respectively electrically connected, and the other ends of the plurality of power supply side switches are respectively connected to a plus terminal or a minus terminal. It can be said that it is only necessary to be electrically connected.

1 計器用変圧変流器(VCT) 2 テストスイッチ
3 電力量計(WHM) 4 配電線路 5 テストプラグ
6 6本の電線 7 7本の電線 8 結線確認報知手段
9 複数の電源用端子 10 複数の機器用端子 11 複数の電源端子
12 複数の機器端子 13 複数の接続プラグ
14 複数の電源側接続プラグ 15 複数の接続端子
16 複数の接続線 17 複数の電源側接続端子
18 複数の電源側接続線 19 計測部 20 制御部
21 出力部 22 切替部 23 電源側切替部
24 複数のスイッチ 25 複数の電源側スイッチ
26 切替部 27 電源側切替部
28 複数のスイッチ 29 複数の電源側スイッチ
CT 計器用変流器 VT 計器用変圧器
VCT 計器用変圧変流器 WHM 電力量計
DESCRIPTION OF SYMBOLS 1 Transformer and current transformer for instrument (VCT) 2 Test switch 3 Electricity meter (WHM) 4 Distribution line 5 Test plug 6 6 electric wires 7 7 electric wires 8 Connection confirmation reporting means 9 Plural power supply terminals 10 Device terminals 11 Plural power terminals 12 Plural device terminals 13 Plural connection plugs 14 Plural power supply connection plugs 15 Plural connection terminals 16 Plural connection wires 17 Plural power supply connection terminals 18 Plural power supply connection wires 19 Measuring unit 20 Control unit 21 Output unit 22 Switching unit 23 Power supply switching unit 24 Multiple switches 25 Multiple power switches 26 Switching unit 27 Power switching unit 28 Multiple switches 29 Multiple power switches CT Current transformer for instrument VT Transformers for Instruments VCT Transformers and Current Transformers for Instruments WHM Watt-hour Meter

Claims (3)

電気機器が有する複数の機器端子と結線される複数の機器用端子及び電源装置が有する複数の電源端子と結線される複数の電源用端子を備えているテストスイッチに嵌合させ、前記電源装置への送電前に使用する結線確認装置であって、
電気的接続状態にある前記複数の機器用端子と前記複数の電源用端子を、前記テストスイッチに嵌合させることにより電気的に切り離すテストプラグと、該テストプラグの一方の面に配置され、前記テストスイッチに嵌合させた時に、前記複数の機器用端子と各々電気的に接続される複数の接続プラグと、前記複数の機器端子と前記複数の機器用端子との結線状態を確認し、結線状態が正しいか否かを報知する結線確認報知手段を備え、
該結線確認報知手段は、複数のスイッチを有する切替部と、プラス端子及びマイナス端子を有しプラス端子とマイナス端子間に接続される回路のインピーダンスを測定する計測部と、前記複数のスイッチのオンオフを制御する制御部と、前記計測部で測定されたインピーダンスに関する情報及び前記制御部のオンオフに関する情報に基づいて前記複数の機器端子と前記複数の機器用端子との結線が正しいか否かを報知する出力部を有しており、
前記複数の接続プラグの一部又は全部と前記複数のスイッチの一端は各々電気的に接続され、前記複数のスイッチの他端は各々前記プラス端子又は前記マイナス端子と電気的に接続されている
ことを特徴とする結線確認装置。
A test switch having a plurality of device terminals connected to a plurality of device terminals of the electrical device and a plurality of power terminals connected to a plurality of power terminals of the power device is connected to the power device. Connection check device used before power transmission,
A test plug for electrically disconnecting the plurality of device terminals and the plurality of power supply terminals in an electrically connected state by fitting the plurality of power supply terminals to the test switch, and disposed on one surface of the test plug; When fitted to the test switch, a plurality of connection plugs respectively electrically connected to the plurality of device terminals, and a connection state between the plurality of device terminals and the plurality of device terminals is confirmed, Equipped with a connection confirmation notifying means for notifying whether the status is correct,
A connection unit having a plurality of switches, a measurement unit having a plus terminal and a minus terminal, and measuring an impedance of a circuit connected between the plus terminal and the minus terminal, and turning on and off the plurality of switches; And a control unit for controlling whether the connection between the plurality of device terminals and the plurality of device terminals is correct based on information on impedance measured by the measurement unit and information on on / off of the control unit. Output unit,
Part or all of the plurality of connection plugs and one ends of the plurality of switches are each electrically connected, and the other ends of the plurality of switches are each electrically connected to the plus terminal or the minus terminal. A connection check device characterized by the above-mentioned.
前記テストプラグの他方の面に配置され、前記テストスイッチに嵌合させた時に、前記複数の電源用端子と各々電気的に接続される複数の電源側接続プラグと、複数の電源側スイッチを有する電源側切替部をさらに備え、
前記複数の電源側接続プラグの一部又は全部と前記複数の電源側スイッチの一端は各々電気的に接続され、前記複数の電源側スイッチの他端は各々前記プラス端子又は前記マイナス端子と電気的に接続されており、
前記制御部は、前記複数の電源側スイッチのオンオフも制御し、
前記出力部は、前記計測部で測定されたインピーダンスに関する情報及び前記制御部のオンオフに関する情報に基づいて前記複数の電源端子と前記複数の電源用端子との結線が正しいか否かも報知する
ことを特徴とする請求項1に記載の結線確認装置。
A plurality of power supply side connection plugs which are arranged on the other surface of the test plug and are respectively electrically connected to the plurality of power supply terminals when fitted to the test switch, and a plurality of power supply side switches; It further includes a power supply side switching unit,
Some or all of the plurality of power supply side connection plugs are electrically connected to one ends of the plurality of power supply side switches, and the other ends of the plurality of power supply side switches are electrically connected to the plus terminal or the minus terminal, respectively. Connected to
The control unit also controls on / off of the plurality of power-side switches,
The output unit also notifies whether or not the connection between the plurality of power terminals and the plurality of power terminals is correct based on the information regarding the impedance measured by the measurement unit and the information regarding on / off of the control unit. The connection confirmation device according to claim 1, wherein:
前記複数の接続プラグと前記複数のスイッチの一端との間又は前記複数の電源側接続プラグと前記複数の電源側スイッチの一端との間に、ダミー抵抗、ダミーインダクター及びダミーキャパシターのいずれかを選択的に接続可能である
ことを特徴とする請求項1又は2に記載の結線確認装置。
Between the plurality of connection plugs and one end of the plurality of switches, or between the plurality of power supply-side connection plugs and one end of the plurality of power-side switches, one of a dummy resistor, a dummy inductor, and a dummy capacitor. The connection confirmation device according to claim 1, wherein the connection confirmation device is selectively connectable.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176974U (en) * 1983-05-16 1984-11-27 川崎製鉄株式会社 Poor contact detection device for electrical contacts
JP2007333674A (en) * 2006-06-19 2007-12-27 Ricoh Co Ltd Cable connection diagnosis device and diagnosis system
JP2013044556A (en) * 2011-08-22 2013-03-04 Enegate:Kk Watt-hour meter test device
JP2014059153A (en) * 2012-09-14 2014-04-03 Shikoku Instrumentation Co Ltd Automatic watt-hour meter inspection device and method
JP2015169526A (en) * 2014-03-06 2015-09-28 九州電力株式会社 Simulation power supply device and normal measurement confirmation device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176974U (en) * 1983-05-16 1984-11-27 川崎製鉄株式会社 Poor contact detection device for electrical contacts
JP2007333674A (en) * 2006-06-19 2007-12-27 Ricoh Co Ltd Cable connection diagnosis device and diagnosis system
JP2013044556A (en) * 2011-08-22 2013-03-04 Enegate:Kk Watt-hour meter test device
JP2014059153A (en) * 2012-09-14 2014-04-03 Shikoku Instrumentation Co Ltd Automatic watt-hour meter inspection device and method
JP2015169526A (en) * 2014-03-06 2015-09-28 九州電力株式会社 Simulation power supply device and normal measurement confirmation device

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