JP6216914B2 - Single-phase 2-wire 50 / 100V step-down device - Google Patents

Single-phase 2-wire 50 / 100V step-down device Download PDF

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JP6216914B2
JP6216914B2 JP2016173903A JP2016173903A JP6216914B2 JP 6216914 B2 JP6216914 B2 JP 6216914B2 JP 2016173903 A JP2016173903 A JP 2016173903A JP 2016173903 A JP2016173903 A JP 2016173903A JP 6216914 B2 JP6216914 B2 JP 6216914B2
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卓男 宮坂
卓男 宮坂
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卓男 宮坂
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本発明は、感電電圧半減単相２線式５０／１００Ｖ降圧装置に関する。 The present invention relates to an electric shock voltage halved single-phase two-wire 50/100 V step-down device.

単相３線式１００／２００Ｖ主開閉器下位・１００Ｖ分岐回路単相２線式１００Ｖは、前記主開閉器下位の左・電圧線Ｒ相対地電圧１００Ｖと中・中性線対地間電圧０Ｖと右・電圧線Ｔ相対地間電圧１００Ｖから、非特許文献１標準電圧１００Ｖを構成している。
しかし、電圧線片側使用し中性線との線間電圧標準値１００Ｖでは、低力率・照明負荷及び低力率・単相１００Ｖ電動機器を多用する電灯配電盤では、ＲーＴ相間平衡・前記標準電圧及び平衡電流値を維持するのは事実上不可能である。 Single-phase three-wire 100 / 200V main switch lower / 100V branch circuit Single-phase two-wire 100V includes a left-voltage line R relative ground voltage 100V and a neutral / neutral line-to-ground voltage 0V lower than the main switch. The non-patent document 1 standard voltage 100V is configured from the right / voltage line T relative ground voltage 100V.
However, with a standard line voltage of 100V between one side of the voltage line and the neutral line, low power factor, lighting load, and low power factor. It is virtually impossible to maintain standard voltage and balanced current values.

さらに、電圧線１線地落感電事故では、前記標準電圧１００Ｖが人体に印加する感電電圧となり、電撃を下げる手段が無い。 Furthermore, in the voltage line 1-line ground electric shock accident, the standard voltage 100V becomes an electric shock voltage applied to the human body, and there is no means for reducing the electric shock.

特開２０００−８３３７８号公報JP 2000-83378 A

特開２００４−１８７３７４号公報JP 2004-187374 A

特開平９−１６７６９０号公報JP-A-9-167690

中部電力株式会社 電気供給約款Chubu Electric Power Co., Inc.

本発明は、住宅（約５、０００万世帯）、店舗（約１１４万店）、工場（一次、二次、三次産業を含む）では、適正な漏電保護・管理が要求されるものの受電設備を設計する場合、感電事故対策は電気工事の施工費安価が優先されるため、もっとも安価な施工費の幹線主開閉器に過電流保護と短絡保護を備えた漏電ブレーカを設置する事例が多く、商業店舗は、漏電感度を人命保護感度３０mAから外れた１００mA又は２００mAとする選定が多く、問題である。 The present invention provides a power receiving facility for a house (approx. 50 million households), a store (approx. 1.14 million stores), a factory (including primary, secondary, and tertiary industries) that requires proper leakage protection and management. When designing, since electric construction work cost is a priority for electric shock accident countermeasures, there are many cases where an earth leakage breaker with overcurrent protection and short-circuit protection is installed on the main trunk switch with the cheapest construction cost. In many stores, the leakage sensitivity is often set to 100 mA or 200 mA, which is out of the life protection sensitivity 30 mA, which is a problem.

特に１００Ｖコンセントは、住宅内の施工位置も低く幼児がコンセント穴に異物を挿入する感電事例もあり、商業施設・飲食店の水回りコンセント負荷設備の絶縁環境・状態は悪く、感電事故時の電撃も大きくなるため感電事故対策を向上する技術が求められる。 In particular, the 100V outlet has a low construction position in the house and there is an electric shock case where an infant inserts a foreign object into the outlet hole. Therefore, technology to improve measures against electric shock accidents is required.

単相３線式１００／２００Ｖ幹線保護用・主開閉器の容量選定は、ＲーＴ相間平衡変動率分の相間見合いをとるため適正アンペア値から外れた余剰を含むアンペア値となる、大型事例が多く適正な幹線保護の過電流遮断としての協調が取れていない問題が生じている。 Single-phase three-wire 100 / 200V trunk protection / main switch capacity selection is a large-scale case where the amperage value includes a surplus that deviates from the proper amperage value in order to balance the VT phase equilibrium fluctuation rate. However, there is a problem that there is a lack of coordination as an overcurrent interruption for proper trunk line protection.

特許文献１送電手段は、需要家・主開閉器下位である２次側端子から前記標準電圧１００Ｖを直列接続入力降圧したのち、前記標準電圧１００Ｖを下回る調整電圧値をＲ−ＳーＴ相分岐回路用銅バー幹線に戻すという代物であるが、非特許文献１標準電圧１００Ｖを下回る分岐回路送電となる点が異なる。
また、分岐回路下位となる負荷機器が使用する線間電圧値構成は、１数・電圧線と中性線の組合せとなるため感電電圧値は、人命保護範囲対地間電位Ｒ相及びＴ相５０Ｖで送電されない点が異なる。
さらに、特許文献１は、公序良俗に反する「節電器」として認知されているため前記標準電圧１００Ｖ・定格消費電力を担保できない技術であり、応用転用はできない。 Japanese Patent Application Laid-Open No. H10-228667, after the standard voltage 100V is stepped down in series from the secondary side terminal, which is a subordinate of the customer / main switch, the adjustment voltage value lower than the standard voltage 100V is R-ST phase branching Although it is a substitute of returning to the copper bar trunk for circuits, it differs in the non-patent document 1 that it becomes branch circuit power transmission below the standard voltage 100V.
In addition, the line voltage value configuration used by the load equipment at the lower level of the branch circuit is a combination of one-number voltage line and neutral line, so the electric shock voltage values are the life protection range-to-ground potential R phase and T phase 50V. The difference is that power is not transmitted.
Furthermore, since Patent Document 1 is recognized as a “power saver” contrary to public order and morals, it is a technology that cannot guarantee the standard voltage of 100 V and the rated power consumption, and cannot be diverted to applications.

特許文献１及び同等の発明手段で、負荷機器・線間電圧値を調整操作により任意値に下げたいのであれば、高圧受電・需要家は自家用変電室内の「高圧−低圧」変圧器内部の２次側タップを切り換えれば前記標準電圧を下げられる。
また、低圧受電・需要家は、電力会社に要請し柱上変圧器内部２次側タップ切替で標準電圧を下げられることは周知知識であり、本願分岐回路へ産業上利用できない技術であり不要である。 In Patent Document 1 and equivalent invention means, if it is desired to lower the load device / line voltage value to an arbitrary value by adjusting operation, the high-voltage power receiver / customer can use the 2 in the “high-low voltage” transformer inside the private substation. The standard voltage can be lowered by switching the next tap.
In addition, it is a well-known knowledge that low voltage power receivers / customers can request the electric power company to lower the standard voltage by switching the secondary side tap on the pole transformer. is there.

特許文献２は、接続点を主開閉器上位とし、入力と出力が単相３線式であり本願単相２線式と異なり、「単相３線式電圧調整器」の負荷線間電圧値１００Ｖと、本願負荷線間構成は異なることからも本願分岐回路へ産業上応用転用はできない。 In Patent Document 2, the connection point is the upper level of the main switch, and the input and output are single-phase three-wire systems. Unlike the single-phase two-wire system of this application, the voltage between the load lines of the “single-phase three-wire voltage regulator” Since the configuration between 100V and the load line of the present application is different, the industrial application cannot be diverted to the branch circuit of the present application.

特許文献３は、ネオン管の点灯装置であり、標準電圧２００Ｖを印加しても出力線間Ｒ−Ｔ相電圧値の構成である１線電位・対地間電圧が推察できない。
本願は、複雑付帯機器を必要としない点からも本願分岐回路へ産業上技術応用転用はできない。
Patent Document 3 is a lighting device for a neon tube, and even if a standard voltage of 200 V is applied, a 1-line potential / ground-to-ground voltage that is a configuration of an output line-to-R-phase voltage value cannot be estimated.
The present application cannot be diverted from industrial application to the present branch circuit from the point of not requiring complicated accessory equipment.

単相２線式分岐回路下位負荷線間電圧１００Ｖ(８)標準電圧１００Ｖ送電系統を、 Single-phase two-wire branch circuit lower load line voltage 100V (8) standard voltage 100V transmission system,

標準電圧２００Ｖ仕様に組替え、Ｒ−Ｔ相線間電圧２００Ｖ(２)を前記・単相２線式分岐回路の分岐ブレーカ(３)上位１次側入力電圧として電圧降圧部(５)へ印加成し、 Changed to the standard voltage 200V specification, and applied the VT phase line voltage 200V (2) to the voltage step-down unit (5) as the branch breaker (3) upper primary side input voltage of the single-phase two-wire branch circuit. And

前記電圧降圧部(５)を形成する単相２線式２００Ｖ入力・降圧巻線２次側・相電圧線間に４数・分巻線を付設し、前記４数・分巻線を片バンク２数・分巻線配置付設する単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線入力点(Ｇ)・Ｒ相とＴ相間に仮中点電位０Ｖ(ｎ)を設け、Ｒ相と仮中点電位０Ｖ(ｎ)間に巻線Ｒ−Ｖ（Ｎ１ａ）と巻線Ｖ−ｎ（Ｎ２ａ）を付設し、巻線Ｎ１ａ−Ｎ２ａ分岐点(Ｖ)を付設し、 A single-phase two-wire 200V input, a step-down winding secondary side, and a phase voltage line that form the voltage step-down unit (5) are provided with a number of four and a shunt, and the number and the shunt are arranged in one bank. Single-phase two-wire system 200V with half number and shunt arrangement Single-phase two-wire system 50 / 100V step-down device with half the electric voltage, winding input point (G), provisional midpoint potential 0V (n between R and T phases ), Winding RV (N1a) and winding Vn (N2a) are added between R phase and provisional midpoint potential 0V (n), and winding N1a-N2a branch point (V) is attached And

前記仮中点電位０Ｖ(ｎ)とＴ相間に巻線ｎ−Ｗ（Ｎ２ｂ）と巻線Ｗ−Ｔ（Ｎ１ｂ）を付設し、巻線Ｎ２ｂ−Ｎ１ｂ分岐点(Ｗ)を付設した感電電圧半減単相２線式５０／１００Ｖ降圧装置であって、 A winding nW (N2b) and a winding WT (N1b) are provided between the temporary midpoint potential 0V (n) and the T phase, and a winding N2b-N1b branch point (W) is provided. A single-phase two-wire 50 / 100V step-down device,

前記電圧降圧部(５)を形成する単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線出力点(Ｈ)に、前記仮中点電位０Ｖ(ｎ)から電圧５０Ｖとなる電位点を前記Ｎ１ａと前記Ｎ２ａ間からＲ相対地間電圧５０Ｖ(Ｖ５０Ａ)を２次側出力成し、 Single-phase two-wire type 200V forming the voltage step-down unit (5) Electric voltage half voltage single-phase two-wire type 50 / 100V step-down device ・ Voltage from the temporary midpoint potential 0V (n) to the winding output point (H) A potential point of 50V is formed between the N1a and the N2a, and an R relative ground voltage 50V (V50A) is formed on the secondary side,

前記巻線出力点(Ｈ)に、仮中点電位０Ｖ(ｎ)から電圧５０Ｖとなる電位点を前記Ｎ２ｂと前記Ｎ１ｂ間からＴ相対地間電圧５０Ｖ(Ｖ５０Ｂ)を２次側出力成し、 At the winding output point (H), a potential point from the temporary midpoint potential 0V (n) to the voltage 50V is a secondary output of a T relative ground voltage 50V (V50B) between the N2b and the N1b,

前記２次側出力から、負荷線間電圧１００Ｖ(８)標準電圧１００Ｖを出力得る前記巻線Ｎ１ａ・Ｎ２ａ・Ｎ２ｂ・Ｎ１ｂと、前記巻線Ｎ１ａ−Ｎ２ａ分岐点(Ｖ)、前記巻線Ｎ２ｂ−Ｎ１ｂ分岐点(Ｗ)と、前記仮中点電位０Ｖ(ｎ)から、 The winding N1a, N2a, N2b, N1b that can output a load line voltage 100V (8) standard voltage 100V from the secondary output, the winding N1a-N2a branch point (V), the winding N2b- From the N1b branch point (W) and the temporary midpoint potential 0 V (n),

前記負荷線間電圧１００Ｖ(８)相電圧構成を、Ｒ相対地間電圧５０Ｖ(Ｖ５０Ａ)及びＴ相対地間電圧５０Ｖ(Ｖ５０Ｂ)から成し、 The load line voltage 100V (8) phase voltage configuration is composed of R relative ground voltage 50V (V50A) and T relative ground voltage 50V (V50B),

前記単相２線式分岐回路下位負荷線間電圧１００Ｖ(８)標準電圧１００Ｖを出力する前記降圧巻線２次側・相電圧線間に、中位となる０電位点を付設し、片バンク２数・分巻線には、前記２数・分巻線間から対地間電位を取得する分岐点を付設する感電電圧半減単相２線式５０／１００Ｖ降圧装置を提供する。 Single-phase two-wire branch circuit lower load line voltage 100V (8) Output a standard voltage 100V A secondary zero-phase voltage line is provided between the step-down winding secondary side and the phase voltage line, and one bank An electric shock halved single-phase two-wire 50 / 100V step-down device is provided in which a branch point for obtaining a ground-to-ground potential from between the two-number / divider is provided for the two-number-divider .

本発明により、負荷線間電圧１００Ｖ・１線地落感電事故災害の電撃被害を、対地間電圧５０Ｖに半減成し、就労者の感電事故防護をより高める対策法となる。 According to the present invention, an electric shock damage caused by a load line voltage of 100 V and a one line ground electric shock accident is halved to a ground voltage of 50 V, which is a countermeasure method for further enhancing the electric shock accident protection of workers.

本発明により、単相１００Ｖ負荷機器稼働中の片相電圧線に起きる電圧降下・電圧変動・フリッカ・電気的悪影響発生要因と、相間不平衡電流発生要因の始動電流及び運転電流を、１次側の母線Ｒ−Ｔ相２線に均等に分流成し、相間不平衡要因を皆無とする。 According to the present invention, the voltage drop, voltage fluctuation, flicker, electrical adverse effect generation factor, and the starting current and the operation current of the interphase unbalanced current generation factor occurring on the single-phase voltage line during operation of the single-phase 100V load device are Are equally divided into the two bus lines R-T phase, and there is no interphase imbalance factor.

本発明により、単相１００Ｖ負荷機器を、分岐回路構成単相２００Ｖとして送電成し、電圧降圧部容量ＶＡに見合う１００Ｖ負荷機器容量ＶＡを集約送電できる。
よって、省力電気工事及び施工費安価並びに施工期間短縮が実現する。 According to the present invention, a single-phase 100 V load device can be transmitted as a branch circuit configuration single phase 200 V, and a 100 V load device capacity VA corresponding to the voltage step-down unit capacity VA can be collectively transmitted.
Therefore, labor-saving electrical work, low construction cost, and shortening the construction period are realized.

力率改善用コンデンサ仕様を、上位単相２００Ｖ仕様に成しコンデンサ容量は、線間電圧に反比例し小容量となり数量減設し、施工安価となる。 The power factor improving capacitor specification is changed to the upper single-phase 200V specification, and the capacitor capacity is inversely proportional to the line voltage, the capacity is reduced, the number is reduced, and the construction cost is reduced.

本発明により、電力供給事業者は柱上変圧器２次側から高圧母線の電流平衡率を高めることができる。 According to the present invention, the power supplier can increase the current balance ratio of the high-voltage bus from the secondary side of the pole transformer.

本発明により、主開閉器相電圧線電流の平衡率が高まり主開閉器アンペア値を負荷設備の稼働率に見合い選択でき、非特許文献１・契約種別主開閉器契約のアンペア値を低減でき契約容量と基本料金削減が実現する。
According to the present invention, the balance ratio of the main switch phase voltage line current is increased, and the main switch ampere value can be selected according to the operating rate of the load equipment, and the amperage value of the non-patent document 1 / contract type main switch contract can be reduced. Realize capacity and basic charge reduction.

配線図 分岐回路 感電電圧半減単相２線式５０／１００Ｖ降圧装置Wiring diagram Branch circuit Electric shock voltage halved single-phase two-wire 50 / 100V step-down device 感電電圧半減単相２線式５０／１００Ｖ降圧装置 内部巻線Electric shock voltage halved single phase 2-wire 50 / 100V step-down device Internal winding 汎用単巻変圧器 １００Ｖ＝０Ｖ＋１００Ｖ出力巻線General-purpose single transformer 100V = 0V + 100V output winding １線地落感電事故 感電電圧半減説明1-line earth shock electric shock half explanation of electric shock voltage

本発明を、その実施の形態を示す図面に基づいて具体的に説明する。
使用に際しては電気供給約款（非特許文献１）に拘束されており、低圧契約需要家に支障を来すことなく契約締結を可能とする技術を提供するものである。 The present invention will be specifically described with reference to the drawings showing embodiments thereof.
In use, the technology is bound by the electricity supply agreement (Non-patent Document 1), and provides a technology that enables the conclusion of a contract without hindering a low-voltage contract customer.

単相２線式分岐回路下位負荷線間電圧１００Ｖ(８)標準電圧１００Ｖ送電系統を、 Single-phase two-wire branch circuit lower load line voltage 100V (8) standard voltage 100V transmission system,

標準電圧２００Ｖ仕様に組替え、Ｒ−Ｔ相線間電圧２００Ｖ(２)を前記・単相２線式分岐回路の分岐ブレーカ(３)上位１次側入力電圧として電圧降圧部(５)へ印加成し、 Changed to the standard voltage 200V specification, and applied the VT phase line voltage 200V (2) to the voltage step-down unit (5) as the branch breaker (3) upper primary side input voltage of the single-phase two-wire branch circuit. And

図１、前記電圧降圧部(５)を形成する、
図２、単相２線式２００Ｖ入力・降圧巻線２次側・相電圧線間に４数・分巻線を付設し、前記４数・分巻線を片バンク２数・分巻線配置付設する単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線入力点(Ｇ)・Ｒ相とＴ相間に仮中点電位０Ｖ(ｎ)を設け、Ｒ相と仮中点電位０Ｖ(ｎ)間に巻線Ｒ−Ｖ（Ｎ１ａ）と巻線Ｖ−ｎ（Ｎ２ａ）を付設し、巻線Ｎ１ａ−Ｎ２ａ分岐点(Ｖ)を付設し FIG. 1 forms the voltage step-down unit (5).
Figure 2, Single-phase two-wire 200V input, step-down winding secondary side, phase voltage line with 4 number / divided winding, and the 4 number / divided winding in 2 banks / divided winding arrangement Attached single-phase two-wire 200V electric shock halved single-phase two-wire 50 / 100V step-down device, winding input point (G), provisional midpoint potential 0V (n) between R phase and T phase, Winding RV (N1a) and winding Vn (N2a) are provided between the temporary midpoint potential 0V (n), and winding N1a-N2a branch point (V) is provided.

図２、前記仮中点電位０Ｖ(ｎ)とＴ相間に巻線ｎ−Ｗ（Ｎ２ｂ）と巻線Ｗ−Ｔ（Ｎ１ｂ）を付設し、巻線Ｎ２ｂ−Ｎ１ｂ分岐点(Ｗ)を付設した感電電圧半減単相２線式５０／１００Ｖ降圧装置であって、 2, winding nW (N2b) and winding WT (N1b) are provided between the temporary midpoint potential 0V (n) and the T phase, and winding N2b-N1b branch point (W) is provided. An electric shock voltage halved single-phase two-wire 50 / 100V step-down device,

図２、前記電圧降圧部(５)を形成する単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線出力点(Ｈ)に、前記仮中点電位０Ｖ(ｎ)から電圧５０Ｖとなる電位点を前記Ｎ１ａと前記Ｎ２ａ間からＲ相対地間電圧５０Ｖ(Ｖ５０Ａ)を２次側出力成し、 2, the single-phase two-wire type 200V forming the voltage step-down unit (5), and the provisional midpoint potential 0V (n ) From the N1a and the N2a, the R relative ground voltage 50V (V50A) is output to the secondary side.

図２、前記巻線出力点(Ｈ)に、仮中点電位０Ｖ(ｎ)から電圧５０Ｖとなる電位点を前記Ｎ２ｂと前記Ｎ１ｂ間からＴ相対地間電圧５０Ｖ(Ｖ５０Ｂ)を２次側出力成し、 2, the winding output point (H) outputs a potential point from the temporary midpoint potential 0V (n) to the voltage 50V, and outputs the T relative ground voltage 50V (V50B) between the N2b and N1b to the secondary side. And

図２、前記２次側出力から、
図１、負荷線間電圧１００Ｖ(８)標準電圧１００Ｖを出力得る前記巻線Ｎ１ａ・Ｎ２ａ・Ｎ２ｂ・Ｎ１ｂと、前記巻線Ｎ１ａ−Ｎ２ａ分岐点(Ｖ)、前記巻線Ｎ２ｂ−Ｎ１ｂ分岐点(Ｗ)と、前記仮中点電位０Ｖ(ｎ)から、 From FIG. 2, the secondary output,
FIG. 1, Load line voltage 100V (8) Winding N1a, N2a, N2b, N1b that can output standard voltage 100V, winding N1a-N2a branch point (V), winding N2b-N1b branch point ( W) and the temporary midpoint potential 0 V (n),

図１、前記負荷線間電圧１００Ｖ(８)相電圧構成を、
図２、Ｒ相対地間電圧５０Ｖ(Ｖ５０Ａ)及びＴ相対地間電圧５０Ｖ(Ｖ５０Ｂ)から成し、 1, the load line voltage 100V (8) phase voltage configuration,
FIG. 2, R relative ground voltage 50V (V50A) and T relative ground voltage 50V (V50B),

図１、前記単相２線式分岐回路下位負荷線間電圧１００Ｖ(８)・非特許文献１標準電圧１００Ｖを出力する前記降圧巻線２次側・相電圧線間に、中位となる０電位点を付設し、片バンク２数・分巻線には、前記２数・分巻線間から対地間電位を取得する分岐点を付設する感電電圧半減単相２線式５０／１００Ｖ降圧装置により、負荷機器を使用する。 1, the voltage between the single-phase two-wire branch circuit lower load line 100V (8) and the non-patent document 1 between the step-down winding secondary side that outputs the standard voltage 100V and the phase voltage line 0 Electric potential half-phase single-wire 2-wire 50 / 100V step-down device with potential point and branch point for obtaining ground-to-ground potential from between the two number / divided windings. By using load equipment.

図１、負荷線間電圧１００Ｖ送電・下位から、上位・単相２線式５０／１００Ｖ母線の相電圧及び相電流を平衡成し、前記「発明が解決しようとする課題」を解決できる。 From FIG. 1, load line voltage 100V power transmission / lower order, the phase voltage and phase current of the upper / single-phase two-wire 50 / 100V bus are balanced to solve the above-mentioned “problem to be solved by the invention”.

図３、周知される単相２線式５０／１００Ｖ降圧手段は、出力電圧値１００Ｖは非特許文献１標準電圧１００Ｖを得ることができるが、負荷線間電圧を電圧線１線と中性線１線で構成する点が本願と異なる。
負荷機器の選定は負荷変動率が低い非特許文献１・電灯及び小型機器に仕様分けできる。。 3, the well-known single-phase two-wire 50 / 100V step-down means can obtain the standard voltage 100V of the non-patent document 1 as the output voltage value 100V, but the voltage between the load line and the neutral line It differs from the present application in that it is composed of one line.
The selection of load equipment can be classified into Non-Patent Document 1 with low load fluctuation rate, electric light, and small equipment. .

本願は、図３負荷線間電圧手段に対して、単相２線式１００Ｖ・低力率負荷機器を三相２００Ｖ負荷機器・送電と同じ電圧線のみで構成し電圧線２線相電圧を、同一電圧値により負荷線間電圧１００Ｖを構成し提供できる仕様から単相２線式１００Ｖ仕様・産業用負荷機器を非特許文献１・「動力」機器として仕様分けし安定供給できる。

This application consists of a single-phase two-wire system 100V, low power factor load device with only the same voltage line as the three-phase 200V load device and power transmission, with respect to the load line voltage means in FIG. Single-phase two-wire 100V specifications / industrial load equipment can be classified as non-patent literature 1 / "power" equipment and can be stably supplied from specifications that can provide and provide a load line voltage 100V with the same voltage value.

図１
１ 単相３線式１００／２００Ｖ
２ Ｒ−Ｔ相線間電圧２００Ｖ
３ 分岐ブレーカ
４ 収納ケース
５ 電圧降圧部
６ 負荷電流計
７ 負荷ブレーカ
８ 負荷線間電圧１００Ｖ
９ 負荷
１０ 大地
１１ 対地間電圧１００Ｖ
１２ 対地間電圧 ５０Ｖ FIG.
1 Single-phase three-wire 100 / 200V
2 R-T phase line voltage 200V
3 Branch Breaker 4 Storage Case 5 Voltage Step-down Unit 6 Load Ammeter 7 Load Breaker 8 Load Line Voltage 100V
9 Load 10 Ground 11 Ground voltage 100V
12 Ground voltage 50V

図２及び図３
Ａ 単相３線式１００／２００Ｖ 責任分解点
Ｂ 単相３線式１００／２００Ｖ 電灯配電盤 需給点
Ｃ 単相２線式２００Ｖ 分岐回路 分岐ブレーカ入力点
Ｄ 単相２線式２００Ｖ 分岐回路 分岐ブレーカ出力点
Ｅ 単相２線式２００Ｖ 単巻変圧器 分岐回路 巻線入力点
Ｆ 単相２線式２００Ｖ 単巻変圧器 分岐回路 巻線出力点
Ｇ 単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線入力点
Ｈ 単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線出力点
Ｖ１ Ｒ−Ｓ相 線間電圧 １００Ｖ＝１００Ｖ＋０Ｖ
Ｓ 中性線 対地間電圧 ０Ｖ
Ｖ２ Ｓ−Ｔ相 線間電圧 １００Ｖ＝０Ｖ＋１００Ｖ
Ｖ３ Ｒ−Ｔ相 線間電圧 ２００Ｖ
Ｎ１ 巻線Ｒ−Ｕ
Ｕ 巻線Ｎ１−Ｎ２分岐点
Ｎ２ 巻線Ｕ−Ｔ
Ｖ０ Ｎ相対地間電圧０Ｖ
Ｖ４ 線間電圧Ｎ−Ｔ１００Ｖ＝０Ｖ＋１００Ｖ
Ｖ１００ Ｔ相対地間電圧１００Ｖ
Ｎ１ａ 巻線Ｒ−Ｖ
Ｖ 巻線Ｎ１ａ−Ｎ２ａ分岐点
Ｎ２ａ 巻線Ｖ−ｎ
ｎ 仮中点電位０Ｖ
Ｎ２ｂ 巻線ｎ−Ｗ
Ｗ 巻線Ｎ２ｂ−Ｎ１ｂ分岐点
Ｎ１ｂ 巻線Ｗ−Ｔ
Ｖ５０Ａ Ｒ相対地間電圧５０Ｖ
Ｖ５ 感電電圧半減単相２線式５０／１００Ｖ降圧装置出力 線間電圧１００Ｖ＝５０Ｖ＋５０Ｖ
Ｖ５０Ｂ Ｔ相対地間電圧５０Ｖ
2 and 3
A Single-phase three-wire 100 / 200V Responsible disassembly point B Single-phase three-wire 100 / 200V Electric switchboard Supply point C Single-phase two-wire 200V Branch circuit Branch breaker input point D Single-phase two-wire 200V Branch circuit Branch breaker output Point E Single-phase two-wire 200V single-winding transformer Branch circuit Winding input point F Single-phase two-wire 200V Single-winding transformer Branch circuit Winding output point G Single-phase two-wire 200V Electric shock voltage half-single two-wire 50 / 100V step-down device / winding input point H Single-phase 2-wire type 200V Electric voltage half-phase 2-wire type 50 / 100V step-down device / winding output point V1 RS phase Line voltage 100V = 100V + 0V
S Neutral wire Ground voltage 0V
V2 S-T phase Line voltage 100V = 0V + 100V
V3 R-T phase Line voltage 200V
N1 Winding RU
U Winding N1-N2 Branch point N2 Winding UT
V0 N relative ground voltage 0V
V4 Line voltage N-T100V = 0V + 100V
V100 T relative ground voltage 100V
N1a Winding RV
V Winding N1a-N2a Branch point N2a Winding Vn
n Temporary midpoint potential 0V
N2b Winding n-W
W Winding N2b-N1b Branch point N1b Winding W-T
V50A R Relative ground voltage 50V
V5 Electric shock voltage halved single phase 2-wire 50 / 100V step-down device output Line voltage 100V = 50V + 50V
V50B T relative ground voltage 50V

Claims (1)

単相２線式分岐回路下位負荷線間電圧１００Ｖ(８)標準電圧１００Ｖ送電系統を、標準電圧２００Ｖ仕様に組替え、Ｒ−Ｔ相線間電圧２００Ｖ(２)を前記・単相２線式分岐回路の分岐ブレーカ(３)上位１次側入力電圧として電圧降圧部(５)へ印加成し、前記電圧降圧部(５)を形成する単相２線式２００Ｖ入力・降圧巻線２次側・相電圧線間に４数・分巻線を付設し、前記４数・分巻線を片バンク２数・分巻線配置付設する単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線入力点(Ｇ)・Ｒ相とＴ相間に仮中点電位０Ｖ(ｎ)を設け、Ｒ相と仮中点電位０Ｖ(ｎ)間に巻線Ｒ−Ｖ（Ｎ１ａ）と巻線Ｖ−ｎ（Ｎ２ａ）を付設し、巻線Ｎ１ａ−Ｎ２ａ分岐点(Ｖ)を付設し、前記仮中点電位０Ｖ(ｎ)とＴ相間に巻線ｎ−Ｗ（Ｎ２ｂ）と巻線Ｗ−Ｔ（Ｎ１ｂ）を付設し、巻線Ｎ２ｂ−Ｎ１ｂ分岐点(Ｗ)を付設した感電電圧半減単相２線式５０／１００Ｖ降圧装置であって、
前記電圧降圧部(５)を形成する単相２線式２００Ｖ 感電電圧半減単相２線式５０／１００Ｖ降圧装置・巻線出力点(Ｈ)に、前記仮中点電位０Ｖ(ｎ)から電圧５０Ｖとなる電位点を前記Ｎ１ａと前記Ｎ２ａ間からＲ相対地間電圧５０Ｖ(Ｖ５０Ａ)を２次側出力成し、
前記巻線出力点(Ｈ)に、仮中点電位０Ｖ(ｎ)から電圧５０Ｖとなる電位点を前記Ｎ２ｂと前記Ｎ１ｂ間からＴ相対地間電圧５０Ｖ(Ｖ５０Ｂ)を２次側出力成し、
前記２次側出力から、負荷線間電圧１００Ｖ(８)標準電圧１００Ｖを出力得る前記巻線Ｎ１ａ・Ｎ２ａ・Ｎ２ｂ・Ｎ１ｂと、前記巻線Ｎ１ａ−Ｎ２ａ分岐点(Ｖ)、前記巻線Ｎ２ｂ−Ｎ１ｂ分岐点(Ｗ)と、前記仮中点電位０Ｖ(ｎ)から、前記負荷線間電圧１００Ｖ(８)相電圧構成を、Ｒ相対地間電圧５０Ｖ(Ｖ５０Ａ)及びＴ相対地間電圧５０Ｖ(Ｖ５０Ｂ)から成し、
前記単相２線式分岐回路下位負荷線間電圧１００Ｖ(８)標準電圧１００Ｖを出力する前記降圧巻線２次側・相電圧線間に、中位となる０電位点を付設し、片バンク２数・分巻線には、前記２数・分巻線間から対地間電位を取得する分岐点を付設する感電電圧半減単相２線式５０／１００Ｖ降圧装置。
Single-phase two-wire branch circuit Lower load line voltage 100V (8) Standard voltage 100V Transmission system is reconfigured to standard voltage 200V specification, RT-phase line voltage 200V (2) The circuit breaker (3) is applied to the voltage step-down unit (5) as the upper primary side input voltage to form the voltage step-down unit (5). the phases were attached to 4 carbon-minute winding voltage line, the 4 single-phase two-wire a few-minutes windings disposed annexed single bank 2 number-minutes windings 200V electric shock voltage half single-phase two-wire 50 / 100V step-down device, winding input point (G), provisional midpoint potential 0V (n) between R phase and T phase, winding RV (N1a) between R phase and provisional midpoint potential 0V (n) And a winding Vn (N2a), a winding N1a-N2a branch point (V), and a winding nW (N2b) and winding between the temporary midpoint potential 0 V (n) and the T phase. And attaching a W-T (N1b), a winding N2b-N 1 b branching point (W) electric shock voltage half single-phase two-wire 50/100 V Buck apparatus attached to,
Single-phase two-wire type 200V forming the voltage step-down unit (5) Electric voltage half voltage single-phase two-wire type 50 / 100V step-down device ・ Voltage from the temporary midpoint potential 0V (n) to the winding output point (H) A potential point of 50V is formed between the N1a and the N2a, and an R relative ground voltage 50V (V50A) is formed on the secondary side,
At the winding output point (H), a potential point from the temporary midpoint potential 0V (n) to the voltage 50V is a secondary output of a T relative ground voltage 50V (V50B) between the N2b and the N1b,
The winding N1a, N2a, N2b, N1b that can output a load line voltage 100V (8) standard voltage 100V from the secondary output, the winding N1a-N2a branch point (V), the winding N2b- From the N1b branch point (W) and the temporary midpoint potential 0V (n), the load line voltage 100V (8) phase voltage configuration is changed to R relative ground voltage 50V (V50A) and T relative ground voltage 50V ( V50B),
Single-phase two-wire branch circuit lower load line voltage 100V (8) Output a standard voltage 100V A secondary zero-phase voltage line is provided between the step-down winding secondary side and the phase voltage line, and one bank An electric shock voltage halved single-phase two-wire 50 / 100V step-down device in which a branching point for obtaining a ground-to-ground potential from between the two number / divided windings is attached to the two number / dividing windings .
JP2016173903A 2016-09-06 2016-09-06 Single-phase 2-wire 50 / 100V step-down device Expired - Fee Related JP6216914B2 (en)

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