JP2010015897A - Three-phase three-wire to single-phase three-wire switching type power generating facility - Google Patents
Three-phase three-wire to single-phase three-wire switching type power generating facility Download PDFInfo
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本発明は、三相３線出力と単相３線出力とを切り替えることができる三相３線−単相３線切替型発電設備に関するものである。 The present invention relates to a three-phase three-wire-single-phase three-wire switching power generation facility capable of switching between a three-phase three-wire output and a single-phase three-wire output.
特開２００３−３３３８１４号公報には、従来の三相３線−単相３線切替型発電設備の一例が開示されている。従来の三相３線−単相３線切替型発電設備では、発電機に設けた６個の発電コイルをパラレルスター結線とスター結線との間で切り替えたり、パラレルスター結線とパラレル直列結線との間で切り替えることにより、三相３線と単相３線との切替を行っている。従来の設備では、切替器と端子台とを用いて、切替接続を行っている。
しかしながら、切替器と端子台とを組み合わせて使用することは、設備の部品点数が増えるだけでなく、組立工数が増える問題がある。また従来の構成では、１回の切替操作で三相３線と単相３線とを切り替えることはできなかった。 However, using a combination of the switch and the terminal block has a problem that not only the number of parts of the equipment increases, but also the number of assembly steps increases. In the conventional configuration, it is not possible to switch between the three-phase three-wire and the single-phase three-wire with a single switching operation.
本発明の目的は、１回の切替操作で三相３線と単相３線とを切替器だけで切り替えることができる三相３線−単相３線切替型発電設備を提供することにある。 An object of the present invention is to provide a three-phase three-wire-single-phase three-wire switching type power generation facility that can switch between a three-phase three-wire and a single-phase three-wire with only a switch by a single switching operation. .
上記目的に加えて、本発明の他の目的は、端子台を用いることなく、一つのユニットの切替器だけで三相３線と単相３線とを切り替えることができる三相３線−単相３線切替型発電設備を提供することにある。 In addition to the above object, another object of the present invention is to provide a three-phase three-wire-single-wire unit that can switch between a three-phase three-wire and a single-phase three-wire with a single unit switch without using a terminal block. It is to provide a phase 3 wire switching type power generation facility.
上記目的に加えて、本発明の他の目的は、誤操作を防止できる三相３線−単相３線切替型発電設備を提供することにある。 In addition to the above object, another object of the present invention is to provide a three-phase three-wire-single-phase three-wire switching power generation facility that can prevent erroneous operation.
上記目的に加えて、本発明の他の目的は、計測器の接続切替を容易に行える三相３線−単相３線切替型発電設備を提供することにある。 In addition to the above object, another object of the present invention is to provide a three-phase three-wire single-phase three-wire switching power generation facility that can easily switch the connection of measuring instruments.
本発明の三相３線−単相３線切替型発電設備は、発電機と切替回路とを備えている。発電機は、同じ位相の交流電力を発生するＵ相発電コイル及びｕ相発電コイルと、Ｕ相発電コイル及びｕ相発電コイルとは電気角で１２０°異なる位相で且つ同じ位相の交流電力を発生するＶ相発電コイル及びｖ相発電コイルと、Ｕ相発電コイル及びｕ相発電コイル並びにＶ相発電コイル及びｖ相発電コイルとは電気角で１２０°異なる位相で且つ同じ位相の交流電力を発生するＷ相発電コイル及びｗ相発電コイルとを備えている。発電機の駆動源は何でも良く、可搬式発電設備や発電機車等では、内燃機関が駆動源となる。そして切替回路は、手動で操作される切替操作部を備えた切替器及び配線回路を備えて、発電機と第１乃至第３の出力ラインとの間に配置される。 The three-phase three-wire / single-phase three-wire switching power generation facility of the present invention includes a generator and a switching circuit. The generator generates AC power having the same phase and a phase different from the U-phase power generation coil and the u-phase power generation coil by 120 ° in electrical angle. The V-phase power generation coil and the v-phase power generation coil, the U-phase power generation coil and the u-phase power generation coil, and the V-phase power generation coil and the v-phase power generation coil generate AC power having a phase different by 120 ° and the same phase. A W-phase power generation coil and a w-phase power generation coil are provided. The drive source of the generator may be anything, and in a portable power generation facility, a generator car, etc., the internal combustion engine is the drive source. The switching circuit includes a switching device including a switching operation unit that is manually operated and a wiring circuit, and is disposed between the generator and the first to third output lines.
本発明においては、基本的には、切替器及び配線回路を、切替操作部が第１の切替位置にあるときにＵ相発電コイル乃至ｗ相発電コイルがパラレルスター結線を構成して第１乃至第３の出力ラインに対して接続され、切替操作部が第２の切替位置にあるときに、Ｕ相発電コイル乃至ｗ相発電コイルがダブルデルタ結線を構成して第１乃至第３の出力ラインに対して接続されるように構成する。このようにすることにより、切替器を用いて１回の切替操作により、三相３線と単相３線とを簡単に切り替えることができる。 In the present invention, basically, the switching device and the wiring circuit are configured such that when the switching operation unit is at the first switching position, the U-phase power generation coil to the w-phase power generation coil form a parallel star connection. When connected to the third output line and the switching operation unit is in the second switching position, the U-phase power generation coil to the w-phase power generation coil constitute a double delta connection, and the first to third output lines Are configured to be connected to each other. By doing so, it is possible to easily switch between the three-phase three-wire and the single-phase three-wire by a single switching operation using the switch.
具体的には、切替器及び配線回路を、切替操作部が第１の切替位置にあるときにＵ相発電コイル及びｕ相発電コイルが並列接続され、Ｖ相発電コイル及びｖ相発電コイルが並列接続され且つＷ相発電コイル及びｗ相発電コイルが並列接続されて構成されるパラレルスター結線が第１乃至第３の出力ラインに対して接続され、切替操作部が第２の切替位置にあるときに、Ｕ相発電コイル、ｖ相発電コイル及びｗ相発電コイルからなる第１のデルタ結線並びにｕ相発電コイル、Ｖ相発電コイル及びＷ相発電コイルからなる第２のデルタ結線を備えたダブルデルタ結線が第１乃至第３の出力ラインに対して接続されるように構成する。 Specifically, when the switching operation unit is in the first switching position, the U-phase power generating coil and the u-phase power generating coil are connected in parallel, and the V-phase power generating coil and the v-phase power generating coil are connected in parallel. When the parallel star connection connected and connected in parallel with the W-phase power generation coil and the w-phase power generation coil is connected to the first to third output lines, and the switching operation unit is in the second switching position. A double delta having a first delta connection composed of a U-phase power generation coil, a v-phase power generation coil and a w-phase power generation coil, and a second delta connection composed of a u-phase power generation coil, a V-phase power generation coil and a W-phase power generation coil. The connection is configured to be connected to the first to third output lines.
切替器の構成を簡単なものとするためには、以下のようにするのが好ましい。まず発電機は、ｕ相発電コイルの一端に接続された第１の出力端子及びｕ相発電コイルの他端に接続された第２の出力端子と、Ｕ相発電コイルの一端に接続された第３の出力端子及びＵ相発電コイルの他端に接続された第４の出力端子と、ｖ相発電コイルの一端に接続された第５の出力端子及びｖ相発電コイルの他端に接続された第６の出力端子と、Ｖ相発電コイルの一端に接続された第７の出力端子及びＶ相発電コイルの他端に接続された第８の出力端子と、ｗ相発電コイルの一端に接続された第９の出力端子及びｗ相発電コイルの他端に接続された第１０の出力端子と、Ｗ相発電コイルの一端に接続された第１１の出力端子及びＷ相発電コイルの他端に接続された第１２の出力端子とを備えたものを用いる。 In order to simplify the configuration of the switch, it is preferable to do the following. First, the generator includes a first output terminal connected to one end of the u-phase power generation coil, a second output terminal connected to the other end of the u-phase power generation coil, and a first output terminal connected to one end of the U-phase power generation coil. A third output terminal connected to the other end of the U-phase generator coil, a fifth output terminal connected to one end of the v-phase generator coil, and the other end of the v-phase generator coil. A sixth output terminal, a seventh output terminal connected to one end of the V-phase power generation coil, an eighth output terminal connected to the other end of the V-phase power generation coil, and one end of the w-phase power generation coil The ninth output terminal and the tenth output terminal connected to the other end of the w-phase power generation coil, the eleventh output terminal connected to one end of the W-phase power generation coil, and the other end of the W-phase power generation coil The one provided with the twelfth output terminal is used.
そして切替器は、切替操作部によって操作される第１乃至第８のスイッチ回路を備えたものを用いる。第１乃至第８のスイッチ回路はそれぞれ、切替操作部が第１の切替位置にあるときに導通状態となり且つ切替操作部が第２の切替位置にあるときに非導通状態となる第１のスイッチ部と切替操作部が第１の切替位置にあるときに非導通状態となり且つ前記切替操作部が第２の切替位置にあるときに導通状態となる第２のスイッチ部とが直列に接続された構造を有しており、第１及び第２のスイッチ部の接続点に接続された中間接続端子と、第１のスイッチ部に接続された第１の接続端子と、第２のスイッチ部に接続された第２の接続端子とを有している。 And the switch provided with the 1st thru | or 8th switch circuit operated by the switching operation part is used. Each of the first to eighth switch circuits is in a conductive state when the switching operation unit is in the first switching position and is in a non-conducting state when the switching operation unit is in the second switching position. And a second switch unit that is in a non-conducting state when the switching operation unit is in the first switching position and that is in a conducting state when the switching operation unit is in the second switching position. An intermediate connection terminal connected to a connection point of the first and second switch parts; a first connection terminal connected to the first switch part; and a second switch part. Second connection terminals.
そして配線回路は、以下の配線を形成するように構成されている。まず第１のスイッチ回路の第１の接続端子が第１の出力端子及び第１の出力ラインに電気的に接続され、第２の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、中間接続端子が第３の出力端子に電気的に接続される。また第２のスイッチ回路の第１の接続端子が第５の出力端子に電気的に接続され、第２の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、中間接続端子が第２の出力ラインに電気的に接続される。また第３のスイッチ回路の第１の接続端子が第１１の出力端子及び第３の出力ラインに電気的に接続され、第２の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、中間接続端子が第９の出力端子に電気的に接続される。第４のスイッチ回路の第１の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、第２の接続端子が第１１の出力端子及び第３の出力ラインに電気的に接続され、中間接続端子が第４の出力端子に電気的に接続される。第５のスイッチ回路の第１の接続端子が第５の出力端子に電気的に接続され、中間接続端子が第７の出力端子に電気的に接続される。また第６のスイッチ回路の第１の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、第２の接続端子が第１の出力ラインに電気的に接続され、中間接続端子が第８の出力端子に電気的に接続される。また第７のスイッチ回路の第１の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、第２の接続端子が第５のスイッチ回路の第２の接続端子に接続され、中間接続端子が第１０の出力端子に電気的に接続される。また第８のスイッチ回路の第１の接続端子が第２の出力端子及び第６の出力端子に電気的に接続され、第２の接続端子が第５の出力端子に電気的に接続され、中間接続端子が第１２の出力端子に電気的に接続されている。このような切替器と配線回路とを用いると、切替器の構成を単純なものとして、１回の切替操作により、パラレルスター結線とダブルデルタ結線との結線切替を行って、三相３線と単相３線との切替を実行できる。 The wiring circuit is configured to form the following wiring. First, the first connection terminal of the first switch circuit is electrically connected to the first output terminal and the first output line, and the second connection terminal is electrically connected to the second output terminal and the sixth output terminal. And the intermediate connection terminal is electrically connected to the third output terminal. The first connection terminal of the second switch circuit is electrically connected to the fifth output terminal, the second connection terminal is electrically connected to the second output terminal and the sixth output terminal, and the middle The connection terminal is electrically connected to the second output line. The first connection terminal of the third switch circuit is electrically connected to the eleventh output terminal and the third output line, and the second connection terminal is electrically connected to the second output terminal and the sixth output terminal. And the intermediate connection terminal is electrically connected to the ninth output terminal. The first connection terminal of the fourth switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is electrically connected to the eleventh output terminal and the third output line. And the intermediate connection terminal is electrically connected to the fourth output terminal. The first connection terminal of the fifth switch circuit is electrically connected to the fifth output terminal, and the intermediate connection terminal is electrically connected to the seventh output terminal. The first connection terminal of the sixth switch circuit is electrically connected to the second output terminal and the sixth output terminal, the second connection terminal is electrically connected to the first output line, and the middle The connection terminal is electrically connected to the eighth output terminal. The first connection terminal of the seventh switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is connected to the second connection terminal of the fifth switch circuit. The intermediate connection terminal is electrically connected to the tenth output terminal. In addition, the first connection terminal of the eighth switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is electrically connected to the fifth output terminal. The connection terminal is electrically connected to the twelfth output terminal. By using such a switch and a wiring circuit, the structure of the switch is simplified, and the connection switching between the parallel star connection and the double delta connection is performed by one switching operation, and the three-phase three-wire Switching to single-phase three-wire can be executed.
また第１乃至第３の出力ラインに電気的に接続されて三相３線の交流電流及び電圧を測定する三相３線メータと、第１乃至第３の出力ラインに電気的に接続されて単相３線の交流電流及び電圧を測定する単相３線メータと設けて電力を測定してもよい。この場合、第１乃至第３の出力ラインの少なくとも２つの出力ラインに対して設けられた少なくとも２つの変流器を含み、切替操作部と連動して、切替操作部が第１の切替位置にあるときに三相３線メータを第１乃至第３の出力ライン及び２つの変流器に電気的に接続し、切替操作部が第２の切替位置にあるときに単相３線メータを第１乃至第３の出力ライン及び２つの変流器に電気的に接続する変流器付連動切替回路を更に備えていれば、三相３線と単相３線との切替に連動して、メータの接続切替も行うことができるので、メータの切替作業が容易になる。 Also, a three-phase three-wire meter that is electrically connected to the first to third output lines to measure the alternating current and voltage of the three-phase three-wires, and is electrically connected to the first to third output lines. A single-phase three-wire meter that measures the alternating current and voltage of the single-phase three-wire may be provided to measure the power. In this case, the switching operation unit includes at least two current transformers provided for at least two output lines of the first to third output lines, and the switching operation unit is moved to the first switching position in conjunction with the switching operation unit. In some cases, the three-phase three-wire meter is electrically connected to the first to third output lines and the two current transformers, and the single-phase three-wire meter is switched to the second when the switching operation unit is in the second switching position. If it further comprises an interlocking switching circuit with a current transformer that is electrically connected to the first to third output lines and the two current transformers, in conjunction with switching between the three-phase three-wire and the single-phase three-wire, Since the meter connection can be switched, the meter switching operation is facilitated.
切替器は１つのユニットとして構成するのが好ましい。１つのユニットであれば、部品点数が減って、設備への取付が容易になる。また切替操作部は、切替器の本体に対して取り外し可能に装着されているのが好ましい。このようにすると、切替操作を行う場合だけ、切替操作部を操作可能な状態にすることができるので、切替操作部を切替操作の権限を持った者が管理すれば、切替権限のない作業者が誤って切替操作をする事故の発生を防止できる。 The switch is preferably configured as one unit. A single unit reduces the number of parts and facilitates installation to equipment. Moreover, it is preferable that the switching operation part is detachably attached to the main body of the switch. In this way, the switching operation unit can be put into an operable state only when a switching operation is performed. Therefore, if the switching operation unit is managed by a person with the switching operation authority, an operator who does not have the switching authority. Can prevent accidents caused by accidental switching operations.
本発明によれば、切替器及び配線回路を、切替操作部が第１の切替位置にあるときにＵ相発電コイル乃至ｗ相発電コイルがパラレルスター結線を構成して第１乃至第３の出力ラインに対して接続され、切替操作部が第２の切替位置にあるときに、Ｕ相発電コイル乃至ｗ相発電コイルがダブルデルタ結線を構成して第１乃至第３の出力ラインに対して接続されるように構成するので、切替器を用いて１回の切替操作により、三相３線と単相３線とを簡単に切り替えることができる利点がある。 According to the present invention, the switching device and the wiring circuit are configured such that the U-phase power generation coil to the w-phase power generation coil form a parallel star connection when the switching operation unit is at the first switching position, and the first to third outputs. The U-phase power generation coil to the w-phase power generation coil form a double delta connection and are connected to the first to third output lines when the switching operation unit is in the second switching position. Therefore, there is an advantage that the three-phase three-wire and the single-phase three-wire can be easily switched by a single switching operation using the switch.
以下、図面を参照して本発明の実施の形態を詳細に説明する。図１は、本発明を発電機車や可搬式発電設備等で使用される三相３線−単相３線切替型発電設備ＧＥに適用した実施の形態の回路構成を示す回路図である。この三相３線−単相３線切替型発電設備ＧＥは、発電機Ｇと切替回路ＳＷＣとを備えている。発電機Ｇは、内燃機関を駆動源として回転するロータＲに設けられた励磁コイルＲＣが発生する磁束と鎖交して、同じ位相の交流電力を発生するＵ相発電コイルＵ及びｕ相発電コイルｕと、Ｕ相発電コイルＵ及びｕ相発電コイルｕとは電気角で１２０°異なる位相で且つ同じ位相の交流電力を発生するＶ相発電コイルＶ及びｖ相発電コイルｖと、Ｕ相発電コイルＵ及びｕ相発電コイルｕ並びにＶ相発電コイルＶ及びｖ相発電コイルｖとは電気角で１２０°異なる位相で且つ同じ位相の交流電力を発生するＷ相発電コイルＷ及びｗ相発電コイルｗとを備えている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a circuit diagram showing a circuit configuration of an embodiment in which the present invention is applied to a three-phase three-wire / single-phase three-wire switching power generation facility GE used in a generator car, a portable power generation facility, or the like. The three-phase three-wire / single-phase three-wire switching power generation facility GE includes a generator G and a switching circuit SWC. The generator G includes a U-phase power generation coil U and a u-phase power generation coil that generate AC power of the same phase in linkage with a magnetic flux generated by an excitation coil RC provided in a rotor R that rotates with an internal combustion engine as a drive source. u, the U-phase power generation coil U and the u-phase power generation coil u, the V-phase power generation coil V and the v-phase power generation coil v, which generate AC power having a phase different by 120 ° in electrical angle and the same phase, and the U-phase power generation coil A W-phase power generation coil W and a w-phase power generation coil w that generate alternating-current power having a phase different from the U and u-phase power generation coil u and the V-phase power generation coil V and the v-phase power generation coil v by 120 °. It has.
発電機Ｇは、ｕ相発電コイルｕの一端に接続された第１の出力端子Ｔ１及びｕ相発電コイルｕの他端に接続された第２の出力端子Ｔ２と、Ｕ相発電コイルＵの一端に接続された第３の出力端子Ｔ３及びＵ相発電コイルＵの他端に接続された第４の出力端子Ｔ４と、ｖ相発電コイルｖの一端に接続された第５の出力端子Ｔ５及びｖ相発電コイルｖの他端に接続された第６の出力端子Ｔ６と、Ｖ相発電コイルＶの一端に接続された第７の出力端子Ｔ７及びＶ相発電コイルＶの他端に接続された第８の出力端子Ｔ８と、ｗ相発電コイルｗの一端に接続された第９の出力端子Ｔ９及びｗ相発電コイルｗの他端に接続された第１０の出力端子Ｔ１０と、Ｗ相発電コイルＷの一端に接続された第１１の出力端子Ｔ１１及びＷ相発電コイルＷの他端に接続された第１２の出力端子Ｔ１２とを備えている。 The generator G includes a first output terminal T1 connected to one end of the u-phase power generation coil u, a second output terminal T2 connected to the other end of the u-phase power generation coil u, and one end of the U-phase power generation coil U. The third output terminal T3 connected to the fourth output terminal T4 connected to the other end of the U-phase power generation coil U, and the fifth output terminals T5 and v connected to one end of the v-phase power generation coil v. A sixth output terminal T6 connected to the other end of the phase generating coil v, a seventh output terminal T7 connected to one end of the V phase generating coil V, and a second output terminal connected to the other end of the V phase generating coil V. Eight output terminals T8, a ninth output terminal T9 connected to one end of the w-phase power generation coil w, a tenth output terminal T10 connected to the other end of the w-phase power generation coil w, and a W-phase power generation coil W Connected to the other end of the eleventh output terminal T11 and the W-phase power generation coil W. 12 and an output terminal T12 of.
そして切替回路ＳＷＣは、手動で操作される切替操作部ＳＨを備えた８極双投形の切替器ＳＷＵ及び配線回路ＤＣを備えて、発電機Ｇと第１乃至第３の出力ラインＯＬ１〜ＯＬ３との間に配置される。 The switching circuit SWC includes an eight-pole double-throw type switch SWU having a switching operation unit SH that is manually operated and a wiring circuit DC, and includes a generator G and first to third output lines OL1 to OL3. Between.
具体的には、切替器ＳＷＵ及び配線回路ＤＣを、切替操作部ＳＨが第１の切替位置Ｐ１にあるときに、Ｕ相発電コイルＵ及びｕ相発電コイルｕが並列接続され、Ｖ相発電コイルＶ及びｖ相発電コイルｖが並列接続され且つＷ相発電コイルＷ及びｗ相発電コイルｗが並列接続されて構成されるパラレルスター結線（図２の左側の結線図）が第１乃至第３の出力ラインＯＬ１〜ＯＬ３に対して接続され、切替操作部ＳＨが第２の切替位置Ｐ２にあるときに、Ｕ相発電コイルＵ、ｖ相発電コイルｖ及びｗ相発電コイルｗからなる第１のデルタ結線並びにｕ相発電コイルｕ、Ｖ相発電コイルＶ及びＷ相発電コイルＷからなる第２のデルタ結線を備えたダブルデルタ結線（図２の右側の結線図）が第１乃至第３の出力ラインＯＬ１〜ＯＬ３に対して接続されるように構成する。 Specifically, when the switching operation unit SH is in the first switching position P1, the U-phase power generation coil U and the u-phase power generation coil u are connected in parallel when the switch SWU and the wiring circuit DC are in the V-phase power generation coil. The parallel star connection (connection diagram on the left side in FIG. 2) configured by connecting the V and v phase power generation coils v in parallel and connecting the W phase power generation coil W and the w phase power generation coil w in parallel is the first to third. A first delta composed of a U-phase power generation coil U, a v-phase power generation coil v, and a w-phase power generation coil w when connected to the output lines OL1 to OL3 and the switching operation unit SH is at the second switching position P2. The double delta connection (connection diagram on the right side in FIG. 2) having the second delta connection composed of the connection and the u-phase power generation coil u, the V-phase power generation coil V, and the W-phase power generation coil W is the first to third output lines. Connected to OL1 to OL3 Configured to be.
上記の切替動作を実現するために、切替器ＳＷＵとしては、切替操作部ＳＨによって操作される第１乃至第８のスイッチ回路ＳＷ１〜ＳＷ８を備えたものを用いる。第１乃至第８のスイッチ回路ＳＷ１〜ＳＷ８はそれぞれ、切替操作部ＳＨが第１の切替位置Ｐ１にあるときに導通状態となり且つ切替操作部ＳＨが第２の切替位置Ｐ２にあるときに非導通状態となる第１のスイッチ部Ｓ１と、切替操作部ＳＨが第１の切替位置Ｐ１にあるときに非導通状態となり且つ前記切替操作部ＳＨが第２の切替位置Ｐ２にあるときに導通状態となる第２のスイッチ部Ｓ２とが直列に接続された構造を有している。第１及び第２のスイッチＳ１及びＳ２は、機械式スイッチである。 In order to realize the above switching operation, a switch provided with the first to eighth switch circuits SW1 to SW8 operated by the switching operation unit SH is used as the switch SWU. Each of the first to eighth switch circuits SW1 to SW8 is in a conductive state when the switching operation unit SH is in the first switching position P1, and is non-conductive when the switching operation unit SH is in the second switching position P2. The first switch unit S1 to be in a state and the non-conducting state when the switching operation unit SH is in the first switching position P1, and the conduction state when the switching operation unit SH is in the second switching position P2. The second switch unit S2 is connected in series. The first and second switches S1 and S2 are mechanical switches.
スイッチ回路ＳＷ１〜ＳＷ８のそれぞれは、第１のスイッチ部Ｓ１に接続された第１の接続端子ｔ１と、第２のスイッチ部Ｓ２に接続された第２の接続端子ｔ２と、第１及び第２のスイッチ部Ｓ２の接続点に接続された中間接続端子ｔ３とを有している。切替器ＳＷＵは、１つの切替操作部ＳＨの操作により８個のスイッチ回路ＳＷ１〜ＳＷ８を同時に操作できるように１つのユニットとして構成されている。図３には、ユニット化された切替器ＳＷＵを組み込んだ制御盤の一例を示している。この例の切替器ＳＷＵは、横に並ぶ８個のスイッチ回路の中央部に切替操作部ＳＨが配置されている。図３に示されるように、切替操作部ＳＨは円柱状を有している。そして切替操作部ＳＨは、切替器本体ＳＷＢに対して取り外し可能に装着されている。具体的には、円柱状の切替操作部ＳＨの基部に雄ネジが形成されており、また切替器本体ＳＷＢ側の被装着部には雄ネジが螺合される雌ネジ部が形成されている。したがって切替操作部ＳＨを装着または脱着する際には、切替操作部ＳＨを軸中心を中心にして時計回り方向または反時計回り方向に回動させればよい。このように、切替操作部ＳＨを取り外し自在にすると、切替操作を行う場合だけ、切替操作部ＳＨを操作可能な状態にすることができる。その結果、切替操作部ＳＨを切替操作の権限を持った者が管理すれば、切替権限のない作業者が誤って切替操作をする事故の発生を防止できる。本実施の形態で用いる切替器ＳＷＵは、切替操作部ＳＨが第１の切替位置Ｐ１にあるときには、スイッチ回路ＳＷ１〜ＳＷ８の全ての第１のスイッチ部Ｓ１が導通状態になり、スイッチ回路ＳＷ１〜ＳＷ８の全ての第２のスイッチ部Ｓ２が非導通状態になる。また切替操作部ＳＨが第２の切替位置Ｐ２にあるときには、スイッチ回路ＳＷ１〜ＳＷ８の全ての第１のスイッチ部Ｓ１が非導通状態になり、スイッチ回路ＳＷ１〜ＳＷ８の全ての第２のスイッチ部Ｓ２が導通状態になる。 Each of the switch circuits SW1 to SW8 includes a first connection terminal t1 connected to the first switch unit S1, a second connection terminal t2 connected to the second switch unit S2, a first and a second connection terminal. And an intermediate connection terminal t3 connected to the connection point of the switch part S2. The switch SWU is configured as one unit so that the eight switch circuits SW1 to SW8 can be operated at the same time by operating one switching operation unit SH. FIG. 3 shows an example of a control panel incorporating a unitized switch SWU. In the switch SWU of this example, a switching operation unit SH is arranged at the center of eight switch circuits arranged side by side. As shown in FIG. 3, the switching operation unit SH has a cylindrical shape. The switching operation unit SH is detachably attached to the switch body SWB. Specifically, a male screw is formed at the base of the cylindrical switching operation portion SH, and a female screw portion into which the male screw is screwed is formed at the mounted portion on the switch body SWB side. . Accordingly, when the switching operation unit SH is attached or detached, the switching operation unit SH may be rotated clockwise or counterclockwise about the axis center. As described above, when the switching operation unit SH is detachable, the switching operation unit SH can be brought into an operable state only when the switching operation is performed. As a result, if a person with the authority to perform the switching operation manages the switching operation unit SH, it is possible to prevent the occurrence of an accident in which an operator without the switching authority erroneously performs the switching operation. In the switch SWU used in the present embodiment, when the switching operation unit SH is at the first switching position P1, all the first switch units S1 of the switch circuits SW1 to SW8 are in a conductive state, and the switch circuits SW1 to SW1 are switched on. All the second switch portions S2 of SW8 are in a non-conductive state. When the switching operation unit SH is in the second switching position P2, all the first switch units S1 of the switch circuits SW1 to SW8 are in a non-conductive state, and all the second switch units of the switch circuits SW1 to SW8 are in the non-conductive state. S2 becomes conductive.
そして配線回路ＤＣは、以下の配線を形成するように構成されている。まず第１のスイッチ回路ＳＷ１の第１の接続端子ｔ１が第１の出力端子Ｔ１及び第１の出力ラインＯＬ１に電気的に接続され、第２の接続端子ｔ２が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、中間接続端子ｔ３が第３の出力端子Ｔ３に電気的に接続される。また第２のスイッチ回路ＳＷ２の第１の接続端子ｔ１が第５の出力端子Ｔ５に電気的に接続され、第２の接続端子ｔ２が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、中間接続端子ｔ３が第２の出力ラインＯＬ２に電気的に接続される。また第３のスイッチ回路ＳＷ３の第１の接続端子ｔ１が第１１の出力端子Ｔ１１及び第３の出力ラインに電気的に接続され、第２の接続端子ｔ２が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、中間接続端子ｔ３が第９の出力端子Ｔ９に電気的に接続される。第４のスイッチ回路ＳＷ４の第１の接続端子ｔ１が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、第２の接続端子ｔ２が第１１の出力端子Ｔ１１及び第３の出力ラインＯＬ３に電気的に接続され、中間接続端子ｔ３が第４の出力端子Ｔ４に電気的に接続される。第５のスイッチ回路ＳＷ５の第１の接続端子ｔ１が第５の出力端子Ｔ５に電気的に接続され、中間接続端子ｔ３が第７の出力端子Ｔ７に電気的に接続される。また第６のスイッチ回路ＳＷ６の第１の接続端子ｔ１が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、第２の接続端子ｔ２が第１の出力ラインＯＬ１に電気的に接続され、中間接続端子ｔ３が第８の出力端子Ｔ８に電気的に接続される。また第７のスイッチ回路ＳＷ７の第１の接続端子ｔ１が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、第２の接続端子ｔ２が第５のスイッチ回路ＳＷ５の第２の接続端子ｔ２に接続され、中間接続端子ｔ３が第１０の出力端子Ｔ１０に電気的に接続される。また第８のスイッチ回路ＳＷ８の第１の接続端子ｔ１が第２の出力端子Ｔ２及び第６の出力端子Ｔ６に電気的に接続され、第２の接続端子ｔ２が第５の出力端子Ｔ５に電気的に接続され、中間接続端子ｔ３が第１２の出力端子Ｔ１２に電気的に接続されている。このような切替器ＳＷＵと配線回路ＤＣとを用いると、切替器ＳＷＵの構成を単純なものとして、１回の切替操作により、図２に示すように、パラレルスター結線とダブルデルタ結線との結線切替を行って、三相３線と単相３線との切替を実行できる。なお図２中に示した○記号の中の数字１〜８は、スイッチ回路ＳＷ１〜ＳＷ８に対応している。図２の左側のパラレルスター結線の状態においては、スイッチ回路ＳＷ１〜ＳＷ８のそれぞれのスイッチ部Ｓ１が導通状態になっており、スイッチ部Ｓ２が非導通状態になっている。また図２の右側のダブルデルタ結線の状態においては、スイッチ回路ＳＷ１〜ＳＷ８のそれぞれのスイッチ部Ｓ２が導通状態になっており、スイッチ部Ｓ１が非導通状態になっている。ダブルデルタ結線の状態では、第２の出力ラインＯＬ２が中性点（Ｎ）になっている。 The wiring circuit DC is configured to form the following wiring. First, the first connection terminal t1 of the first switch circuit SW1 is electrically connected to the first output terminal T1 and the first output line OL1, and the second connection terminal t2 is connected to the second output terminal T2 and the second output terminal T2. 6 is electrically connected to the output terminal T6, and the intermediate connection terminal t3 is electrically connected to the third output terminal T3. The first connection terminal t1 of the second switch circuit SW2 is electrically connected to the fifth output terminal T5, and the second connection terminal t2 is electrically connected to the second output terminal T2 and the sixth output terminal T6. The intermediate connection terminal t3 is electrically connected to the second output line OL2. The first connection terminal t1 of the third switch circuit SW3 is electrically connected to the eleventh output terminal T11 and the third output line, and the second connection terminal t2 is connected to the second output terminal T2 and the sixth output terminal T2. The output terminal T6 is electrically connected, and the intermediate connection terminal t3 is electrically connected to the ninth output terminal T9. The first connection terminal t1 of the fourth switch circuit SW4 is electrically connected to the second output terminal T2 and the sixth output terminal T6, and the second connection terminal t2 is connected to the eleventh output terminal T11 and the third output terminal T11. The output line OL3 is electrically connected, and the intermediate connection terminal t3 is electrically connected to the fourth output terminal T4. The first connection terminal t1 of the fifth switch circuit SW5 is electrically connected to the fifth output terminal T5, and the intermediate connection terminal t3 is electrically connected to the seventh output terminal T7. The first connection terminal t1 of the sixth switch circuit SW6 is electrically connected to the second output terminal T2 and the sixth output terminal T6, and the second connection terminal t2 is electrically connected to the first output line OL1. The intermediate connection terminal t3 is electrically connected to the eighth output terminal T8. Further, the first connection terminal t1 of the seventh switch circuit SW7 is electrically connected to the second output terminal T2 and the sixth output terminal T6, and the second connection terminal t2 is connected to the fifth output of the fifth switch circuit SW5. 2 and the intermediate connection terminal t3 is electrically connected to the tenth output terminal T10. Also, the first connection terminal t1 of the eighth switch circuit SW8 is electrically connected to the second output terminal T2 and the sixth output terminal T6, and the second connection terminal t2 is electrically connected to the fifth output terminal T5. The intermediate connection terminal t3 is electrically connected to the twelfth output terminal T12. When such a switch SWU and the wiring circuit DC are used, the structure of the switch SWU is simplified, and the connection between the parallel star connection and the double delta connection is performed as shown in FIG. 2 by one switching operation. Switching can be performed to switch between three-phase three-wire and single-phase three-wire. The numbers 1-8 in the circles shown in FIG. 2 correspond to the switch circuits SW1-SW8. In the state of the parallel star connection on the left side of FIG. 2, each switch part S1 of the switch circuits SW1 to SW8 is in a conductive state, and the switch part S2 is in a non-conductive state. In the double delta connection state on the right side of FIG. 2, the switch units S2 of the switch circuits SW1 to SW8 are in a conductive state, and the switch unit S1 is in a nonconductive state. In the double delta connection state, the second output line OL2 is at the neutral point (N).
図１の実施の形態では、切替操作部ＳＨが第１の切替位置Ｐ１にあるときに、第１乃至第３の出力ラインＯＬ１〜ＯＬ３に電気的に接続されて三相３線の交流電流及び電圧を測定して電力を演算表示する三相３線メータＭ１と、切替操作部ＳＨが第２の切替位置Ｐ２にあるときに、第１乃至第３の出力ラインＯＬ１〜ＯＬ３に電気的に接続されて単相３線の交流電流及び電圧を測定して電力を演算表示する単相３線メータＭ２とが設けられている。本実施の形態では、第１乃至第３の出力ラインＯＬ１〜ＯＬ３の２つの出力ラインＯＬ１及びＯＬ３に対して設けられた２つの変流器ＣＴ１及びＣＴ２を含み、切替操作部ＳＨと連動して、切替操作部ＳＨが第１の切替位置Ｐ１にあるときに三相３線メータＭ１を第１乃至第３の出力ラインＯＬ１〜ＯＬ３及び２つの変流器ＣＴ１及びＣＴ２に電気的に接続し、切替操作部ＳＨが第２の切替位置Ｐ２にあるときに単相３線メータＭ２を第１乃至第３の出力ラインＯＬ１〜ＯＬ３及び２つの変流器ＣＴ１及びＣＴ２に電気的に接続する変流器付連動切替回路ＣＳＣを備えている。変流器付連動切替回路ＣＳＣには、切替操作部ＳＨが第１の切替位置Ｐ１になると導通状態になり、切替操作部ＳＨが第２の切替位置Ｐ２になると非導通状態になるスイッチ部Ｓ３及びＳ４が設けられている。また変流器付連動切替回路ＣＳＣには、切替操作部ＳＨが第１の切替位置Ｐ１になると非導通状態になり、切替操作部ＳＨが第２の切替位置Ｐ２になると導通状態になるスイッチ部Ｓ５及びＳ６が設けられている。これらのスイッチ部Ｓ３乃至Ｓ６は、切替操作部ＳＨの動作と連動するようになっている。このようにすると三相３線と単相３線との切替に連動して、メータの接続切替も行うことができるので、メータの切替作業が容易になる。 In the embodiment of FIG. 1, when the switching operation unit SH is in the first switching position P1, the three-phase three-wire AC current and the first to third output lines OL1 to OL3 are electrically connected to the first to third output lines OL1 to OL3. Electrically connected to the first to third output lines OL1 to OL3 when the three-phase three-wire meter M1 that measures voltage and calculates and displays power and the switching operation unit SH is in the second switching position P2. A single-phase three-wire meter M2 that measures the AC current and voltage of the single-phase three-wire and calculates and displays power is provided. The present embodiment includes two current transformers CT1 and CT2 provided for the two output lines OL1 and OL3 of the first to third output lines OL1 to OL3, and in conjunction with the switching operation unit SH. Electrically connecting the three-phase three-wire meter M1 to the first to third output lines OL1 to OL3 and the two current transformers CT1 and CT2 when the switching operation unit SH is at the first switching position P1, A current transformer that electrically connects the single-phase three-wire meter M2 to the first to third output lines OL1 to OL3 and the two current transformers CT1 and CT2 when the switching operation unit SH is in the second switching position P2. A device-equipped interlocking switching circuit CSC is provided. In the interlocking switching circuit CSC with current transformer, a switch unit S3 that is in a conductive state when the switching operation unit SH is in the first switching position P1, and is in a non-conducting state when the switching operation unit SH is in the second switching position P2. And S4. Further, in the interlock switching circuit with current transformer CSC, a switch unit that becomes non-conductive when the switching operation unit SH reaches the first switching position P1 and becomes conductive when the switching operation unit SH reaches the second switching position P2. S5 and S6 are provided. These switch units S3 to S6 are adapted to interlock with the operation of the switching operation unit SH. In this way, the meter connection can be switched in conjunction with the switching between the three-phase three-wire and the single-phase three-wire, so that the meter switching operation is facilitated.
Ｇ 発電機
ＧＥ 三相３線−単相３線切替型発電設備
ＳＷＣ 切替回路
ＳＷＵ 切替器
ＳＨ 切替操作部
ＳＷ１〜ＳＷ８ 第１乃至第８のスイッチ回路
Ｓ１ 第１のスイッチ部
Ｓ２ 第２のスイッチ部
ＯＬ１〜ＯＬ３ 第１乃至第３の出力ライン
ＣＴ１，ＣＴ２ 変流器
Ｍ１ 三相３線メータ
Ｍ２ 単相３線メータ
G generator GE Three-phase three-wire-single-phase three-wire switching type power generation facility SWC switching circuit SWU switching unit SH switching operation unit SW1 to SW8 first to eighth switch circuits S1 first switch unit S2 second switch unit OL1 to OL3 First to third output lines CT1, CT2 Current transformer M1 Three-phase three-wire meter M2 Single-phase three-wire meter
Claims (5)
手動で操作される切替操作部を備えた切替器及び配線回路を備えて前記発電機と第１乃至第３の出力ラインとの間に配置された切替回路とを備え、
前記切替器及び前記配線回路は、前記切替操作部が第１の切替位置にあるときに前記Ｕ相発電コイル及びｕ相発電コイルが並列接続され、前記Ｖ相発電コイル及びｖ相発電コイルが並列接続され且つ前記Ｗ相発電コイル及びｗ相発電コイルが並列接続されて構成されるパラレルスター結線が前記第１乃至第３の出力ラインに対して接続され、前記切替操作部が第２の切替位置にあるときに、前記Ｕ相発電コイル、前記ｖ相発電コイル及び前記ｗ相発電コイルからなる第１のデルタ結線並びに前記ｕ相発電コイル、前記Ｖ相発電コイル及び前記Ｗ相発電コイルからなる第２のデルタ結線を備えたダブルデルタ結線が前記第１乃至第３の出力ラインに対して接続されるように構成されていることを特徴とする三相３線−単相３線切替型発電設備。 The U-phase power generation coil and the u-phase power generation coil that generate AC power having the same phase, and the U-phase power generation coil and the u-phase power generation coil have a phase that is 120 ° different in electrical angle and V-phase that generates AC power having the same phase. The power generation coil and the v-phase power generation coil, the U-phase power generation coil and the u-phase power generation coil, and the V-phase power generation coil and the v-phase power generation coil have AC phases different from each other by 120 ° and generate AC power having the same phase. A generator comprising a phase generator coil and a w-phase generator coil;
A switching device provided with a switching operation unit operated manually and a wiring circuit, and a switching circuit disposed between the generator and the first to third output lines,
In the switch and the wiring circuit, the U-phase power generation coil and the u-phase power generation coil are connected in parallel when the switching operation unit is at the first switching position, and the V-phase power generation coil and the v-phase power generation coil are connected in parallel. A parallel star connection formed by connecting the W-phase power generation coil and the w-phase power generation coil in parallel is connected to the first to third output lines, and the switching operation unit is at the second switching position. A first delta connection composed of the U-phase power generation coil, the v-phase power generation coil, and the w-phase power generation coil, and a u-phase power generation coil, the V-phase power generation coil, and the W-phase power generation coil. A three-phase three-wire-single-phase three-wire switching power generation facility, wherein a double delta connection having two delta connections is connected to the first to third output lines .
前記切替器は、前記切替操作部によって操作される第１乃至第８のスイッチ回路を備え、
前記第１乃至第８のスイッチ回路はそれぞれ、前記切替操作部が前記第１の切替位置にあるときに導通状態となり且つ前記切替操作部が前記第２の切替位置にあるときに非導通状態となる第１のスイッチ部と前記切替操作部が第１の切替位置にあるときに非導通状態となり且つ前記切替操作部が第２の切替位置にあるときに導通状態となる第２のスイッチ部とが直列に接続された構造を有し、且つ前記第１及び第２のスイッチ部の接続点に接続された中間接続端子と、前記第１のスイッチ部に接続された第１の接続端子と、前記第２のスイッチ部に接続された第２の接続端子とを有し、
前記配線回路が、
前記第１のスイッチ回路の前記第１の接続端子が前記第１の出力端子及び前記第１の出力ラインに電気的に接続され、前記第２の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記中間接続端子が前記第３の出力端子に電気的に接続され、
前記第２のスイッチ回路の前記第１の接続端子が前記第５の出力端子に電気的に接続され、前記第２の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記中間接続端子が前記第２の出力ラインに電気的に接続され、
前記第３のスイッチ回路の前記第１の接続端子が前記第１１の出力端子及び前記第３の出力ラインに電気的に接続され、前記第２の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記中間接続端子が前記第９の出力端子に電気的に接続され、
前記第４のスイッチ回路の前記第１の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記第２の接続端子が前記第１１の出力端子及び前記第３の出力ラインに電気的に接続され、前記中間接続端子が前記第４の出力端子に電気的に接続され、
前記第５のスイッチ回路の前記第１の接続端子が前記第５の出力端子に電気的に接続され、前記中間接続端子が前記第７の出力端子に電気的に接続され、
前記第６のスイッチ回路の前記第１の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記第２の接続端子が前記第１の出力ラインに電気的に接続され、前記中間接続端子が前記第８の出力端子に電気的に接続され、
前記第７のスイッチ回路の前記第１の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記第２の接続端子が前記第５のスイッチ回路の前記第２の接続端子に接続され、前記中間接続端子が前記第１０の出力端子に電気的に接続され、
前記第８のスイッチ回路の前記第１の接続端子が前記第２の出力端子及び前記第６の出力端子に電気的に接続され、前記第２の接続端子が前記第５の出力端子に電気的に接続され、前記中間接続端子が前記第１２の出力端子に電気的に接続されるように構成されていることを特徴とする請求項１に記載の三相３線−単相３線切替型発電設備。 The generator is connected to a first output terminal connected to one end of the u-phase generator coil, a second output terminal connected to the other end of the u-phase generator coil, and one end of the U-phase generator coil. A fourth output terminal connected to the third output terminal and the other end of the U-phase power generation coil, a fifth output terminal connected to one end of the v-phase power generation coil, and the v-phase power generation coil. A sixth output terminal connected to the other end; a seventh output terminal connected to one end of the V-phase power generation coil; an eighth output terminal connected to the other end of the V-phase power generation coil; A ninth output terminal connected to one end of the w-phase power generation coil, a tenth output terminal connected to the other end of the w-phase power generation coil, and an eleventh output connected to one end of the W-phase power generation coil A twelfth output terminal connected to the terminal and the other end of the W-phase power generation coil; Provided,
The switch includes first to eighth switch circuits operated by the switching operation unit,
Each of the first to eighth switch circuits is in a conducting state when the switching operation unit is in the first switching position, and is in a non-conducting state when the switching operation unit is in the second switching position. A first switch unit and a second switch unit that is in a non-conductive state when the switching operation unit is in a first switching position and that is in a conductive state when the switching operation unit is in a second switching position; Are connected in series, and an intermediate connection terminal connected to a connection point of the first and second switch parts, a first connection terminal connected to the first switch part, A second connection terminal connected to the second switch portion;
The wiring circuit is
The first connection terminal of the first switch circuit is electrically connected to the first output terminal and the first output line, and the second connection terminal is connected to the second output terminal and the first output line. 6 is electrically connected to the output terminal 6 and the intermediate connection terminal is electrically connected to the third output terminal.
The first connection terminal of the second switch circuit is electrically connected to the fifth output terminal, and the second connection terminal is electrically connected to the second output terminal and the sixth output terminal. And the intermediate connection terminal is electrically connected to the second output line,
The first connection terminal of the third switch circuit is electrically connected to the eleventh output terminal and the third output line, and the second connection terminal is connected to the second output terminal and the second output terminal. 6 is electrically connected to the output terminal 6, and the intermediate connection terminal is electrically connected to the ninth output terminal,
The first connection terminal of the fourth switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is connected to the eleventh output terminal and the first output terminal. 3 and the intermediate connection terminal is electrically connected to the fourth output terminal,
The first connection terminal of the fifth switch circuit is electrically connected to the fifth output terminal, the intermediate connection terminal is electrically connected to the seventh output terminal;
The first connection terminal of the sixth switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is electrically connected to the first output line. The intermediate connection terminal is electrically connected to the eighth output terminal,
The first connection terminal of the seventh switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is the first connection terminal of the fifth switch circuit. 2 connecting terminals, the intermediate connecting terminal is electrically connected to the tenth output terminal,
The first connection terminal of the eighth switch circuit is electrically connected to the second output terminal and the sixth output terminal, and the second connection terminal is electrically connected to the fifth output terminal. The three-phase three-wire single-phase three-wire switching type according to claim 1, wherein the intermediate connection terminal is electrically connected to the twelfth output terminal. Power generation equipment.
前記第１乃至第３の出力ラインに電気的に接続されて単相３線の交流電流及び電圧を測定する単相３線メータと、
前記第１乃至第３の出力ラインの少なくとも２つの前記出力ラインに対して設けられた少なくとも２つの変流器を含み、前記切替操作部と連動して、前記切替操作部が前記第１の切替位置にあるときに前記三相３線メータを前記第１乃至第３の出力ライン及び前記２つの変流器に電気的に接続し、前記切替操作部が前記第２の切替位置にあるときに前記単相３線メータを前記第１乃至第３の出力ライン及び前記２つの変流器に電気的に接続する変流器付連動切替回路とを更に備えている請求項２に記載の三相３線−単相３線切替型発電設備。 A three-phase three-wire meter electrically connected to the first to third output lines and measuring a three-phase three-wire alternating current and voltage;
A single-phase three-wire meter electrically connected to the first to third output lines and measuring a single-phase three-wire alternating current and voltage;
Including at least two current transformers provided for at least two of the first to third output lines, wherein the switching operation unit is coupled with the switching operation unit, When the three-phase three-wire meter is electrically connected to the first to third output lines and the two current transformers when the switch operation unit is in the second switch position. 3. The three-phase circuit according to claim 2, further comprising an interlocking switching circuit with a current transformer that electrically connects the single-phase three-wire meter to the first to third output lines and the two current transformers. Three-wire single-phase three-wire switching type power generation equipment.
前記切替操作部は、前記切替器の本体に対して取り外し可能に装着されている請求項１に記載の三相３線−単相３線切替型発電設備。 The switch is configured as one unit,
The three-phase three-wire / single-phase three-wire switching power generation facility according to claim 1, wherein the switching operation unit is detachably attached to a main body of the switch.
手動で操作される切替操作部を備えた切替器及び配線回路を備えて前記発電機と第１乃至第３の出力ラインとの間に配置された切替回路とを備え、
前記切替器及び前記配線回路は、前記切替操作部が第１の切替位置にあるときに前記Ｕ相発電コイル乃至ｗ相発電コイルがパラレルスター結線を構成して前記第１乃至第３の出力ラインに対して接続され、前記切替操作部が第２の切替位置にあるときに、前記Ｕ相発電コイル乃至ｗ相発電コイルがダブルデルタ結線を構成して前記第１乃至第３の出力ラインに対して接続されるように構成されていることを特徴とする三相３線−単相３線切替型発電設備。 The U-phase power generation coil and the u-phase power generation coil that generate AC power having the same phase, and the U-phase power generation coil and the u-phase power generation coil that generate AC power having the same phase and a phase different by 120 °. The phase power generation coil and the v phase power generation coil, the U phase power generation coil and the u phase power generation coil, and the V phase power generation coil and the v phase power generation coil generate AC power having a phase different by 120 ° and the same phase. A generator including a W-phase power generation coil and a w-phase power generation coil;
A switching device provided with a switching operation unit operated manually and a wiring circuit, and a switching circuit disposed between the generator and the first to third output lines,
In the switching device and the wiring circuit, the U-phase power generation coil to the w-phase power generation coil constitute a parallel star connection when the switching operation unit is in the first switching position, and the first to third output lines And when the switching operation unit is at the second switching position, the U-phase power generation coil to the w-phase power generation coil constitute a double delta connection to the first to third output lines. A three-phase three-wire-single-phase three-wire switching type power generation facility characterized by being connected to each other.
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| JP2006087242A (en) * | 2004-09-16 | 2006-03-30 | Hokuetsu Kogyo Co Ltd | Variable setting generator |
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|---|---|---|---|---|
| JP2002335696A (en) * | 2001-05-10 | 2002-11-22 | Nippon Sharyo Seizo Kaisha Ltd | Generator |
| JP2003333814A (en) * | 2002-05-16 | 2003-11-21 | Nippon Sharyo Seizo Kaisha Ltd | Setting-changeable generator |
| JP2006014432A (en) * | 2004-06-23 | 2006-01-12 | Denyo Co Ltd | Three-phase alternator |
| JP2006087242A (en) * | 2004-09-16 | 2006-03-30 | Hokuetsu Kogyo Co Ltd | Variable setting generator |
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