JPH0260434A - Uninterruptible high voltage metering transformer replacing device - Google Patents
Uninterruptible high voltage metering transformer replacing deviceInfo
- Publication number
- JPH0260434A JPH0260434A JP63209019A JP20901988A JPH0260434A JP H0260434 A JPH0260434 A JP H0260434A JP 63209019 A JP63209019 A JP 63209019A JP 20901988 A JP20901988 A JP 20901988A JP H0260434 A JPH0260434 A JP H0260434A
- Authority
- JP
- Japan
- Prior art keywords
- high voltage
- switch
- power
- voltage switch
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業−にの利用分野〕
本発明は、高圧受電需要家の受電用の計器用変成器の取
り替えを、無停電でしかも電力負荷計量をしながら、実
施できるようにした無停電取替装置に関するものである
。[Detailed Description of the Invention] [Industrial Field of Application] The present invention is capable of replacing a power receiving instrument transformer of a high-voltage power receiving consumer without power outage and while metering the power load. The present invention relates to an uninterruptible replacement device.
高圧受電需要家の受電用の計器用変成器は、有効期間満
了などにより、定期的に検定のため取り替えを要するか
、従来は停電作業により、取り替えが実施されていた。The instrument transformers for power receiving by high-voltage power receiving customers either need to be replaced periodically for verification due to expiration of their validity period, or in the past, replacement was carried out during power outage work.
ところが最近は、需要家の使用型器が自動化やオンライ
ン制御化されたり、コンピュータ使用等が多くなり、停
電作業はもとより瞬時停電をも許されない情況になりつ
つあり、活線作業をせざるを得ない状況になって鰺でい
る。However, recently, the equipment used by consumers has become automated and controlled online, and computers are increasingly being used, and the situation has become such that not only power outage work, but even instantaneous power outages cannot be tolerated, and there is no choice but to work on live lines. I'm stuck in a situation where I don't have any.
そして実際にも、配電線の工事では変圧器車や発電磯車
を使用しで、工事区域の需要家に工事間も停電すること
なく電力の供給を行ないながら作業するようになってぎ
でいる。In fact, in the construction of distribution lines, transformer trucks and power generator trucks are now being used to supply electricity to customers in the construction area without any power outages during the construction work. .
ところが計器用変成器の取り替えの場合は、その取付数
も多く、取り替えもその需要家に限られるので・、変圧
器車や発電磯車を使用するには、設備的に過大で・不経
済であり、高圧需要家数も多（・いので、月応しきれな
い等の不都合かある。However, in the case of replacing instrument transformers, there are a large number of them installed, and replacements are limited to the users, so using transformer cars and power generation cars is too expensive and uneconomical. However, there are many high-voltage customers, so there may be some inconveniences such as not being able to meet the demand on a monthly basis.
更に取替工事間中の使用電力量を計量する必要かあるか
、変圧谷型や発電代車て゛は、通常は計量を必要としな
いので、計量でｂるようになっていない。Furthermore, whether it is necessary to measure the amount of electricity used during replacement work, it is not possible to measure the amount of electricity used in transformer valley type or power generation substitute vehicles, as they do not normally require measurement.
従って計器用変成器の取り替えには、もつとコンパクト
な無停電取替装置が要望された。Therefore, a compact uninterruptible replacement device was required for replacing instrument transformers.
本発明は、このような要望に応えて開発したもので、高
圧受電用の計器用変成器の取り替えを、その計器用変成
器に負荷された電力負荷を瞬時も停電することなく、バ
イパス回路に検電・検相・並列切替により無停電で並列
切替し、しかも、取り替え作業中も電力負荷の計量をで
・きるようにした高圧計器用変成器の無停電取替装置を
提供するものである。The present invention was developed in response to such demands, and allows replacement of a high-voltage power receiving instrument transformer to a bypass circuit without causing a momentary power outage of the power load loaded on the instrument transformer. The present invention provides an uninterruptible replacement device for high-voltage instrument transformers that performs uninterrupted parallel switching using voltage detection, phase detection, and parallel switching, and also allows the power load to be measured even during replacement work. .
＠１図に示すように、電源側コネクター１と負荷側コネ
クター２との間に、高圧開閉器３と計器用変成器Ｘ１を
接続した回路の、高圧開閉器３の両側１こ電圧検出用Ｐ
Ｔ５・６をそれぞれＶ結線１こ接続するとともに、高圧
開閉器３の電）源側に電源用ＰＴ７を接続し、各Ｐ］゛
５・６・７の二次側を、検電・検相・デスプレー表示の
機能ならびに高圧開閉器操作機能を、有する制御部８に
接続し、かつ、計器用変成器４には電力量計９を接続し
てなる構造の、
検電・検相・並列切替により無停電にて、取引用の計器
用変成器の取り替えを、電力負荷の計量をもしながら、
できるようにした構造のものである。@1 As shown in Figure 1, in a circuit in which a high voltage switch 3 and an instrument transformer X1 are connected between a power supply side connector 1 and a load side connector 2, one voltage detection P
Connect T5 and T6 to one V connection each, and connect power supply PT7 to the power source side of high voltage switch 3, and conduct voltage detection and phase detection on the secondary side of each P]5, 6, and 7.・Power detection/phase detection/parallel switching with a structure in which the power meter 9 is connected to the instrument transformer 4, and the power meter 9 is connected to the control unit 8, which has a display function and a high voltage switch operation function. This allows us to replace instrument transformers for commercial use without power outages, while also measuring the power load.
It has a structure that allows it to be used.
なお、制御部８は第２図に示すように、電源回路１１、
高圧開閉器繰作回路１２、およびマイコン部より構成さ
れており、
マイコン部は、
■電圧検出用の・４つのＰＴ ５・６の二次側電圧を順
に読み込むＡ ／ Ｄ変換回路１３゜■検相スイフチ３
３・投入スイフチ３１および開放スイフチ３２並びに高
圧開閉器３の接点３９の読み取り回路１８と、停電時の
データ保管回路１４と、デスプレー３４を並列入出力す
るＰｌｏｌ、５゜
■電源か停電したことを検出し、割り込みをかけること
かできる割り込み回路１６゜
■その他ＣＰＵ １７、ＲＯＭ １０、ＲＡ Ｍ ２０
等から構成されている。Note that, as shown in FIG. 2, the control unit 8 includes a power supply circuit 11,
It consists of a high-voltage switch operation circuit 12 and a microcomputer section. Ai Swift 3
3. Plol, which inputs and outputs the closing switch 31, the opening switch 32, the reading circuit 18 of the contact 39 of the high voltage switch 3, the data storage circuit 14 at the time of a power outage, and the display 34 in parallel, 5°. Interrupt circuit that can detect and issue an interrupt 16゜ Other CPU 17, ROM 10, RAM 20
It is composed of etc.
〔作用〕〔実施例〕
本発明の高圧計器用変成器無停電取替装置を使用するに
は、例えば第１図・第３図に示すように、本装置の高圧
開閉器３の開放状態において、電源側コネクター１に、
引込電柱の柱上高圧開閉器２１の電源側リード線２７に
リードコネクター２２により接続された、電源側ケーブ
ル２３を接続し、
次にキユービクル内の高圧開閉器２４の負荷側リード線
２８に高圧接続クランプ２５により接続された負荷側ケ
ーブル２６を負荷側コネクター２に接続する。[Function] [Example] To use the high voltage instrument transformer uninterruptible replacement device of the present invention, for example, as shown in FIGS. 1 and 3, when the high voltage switch 3 of the device is in the open state, , to power supply side connector 1,
Connect the power side cable 23 connected by the lead connector 22 to the power side lead wire 27 of the pole-mounted high voltage switch 21 of the lead-in utility pole, and then connect the high voltage side cable 23 to the load side lead wire 28 of the high voltage switch 24 in the cubicle. The load side cable 26 connected by the clamp 25 is connected to the load side connector 2.
次に本装置の検相又インチ３３を押すと、電圧検出用Ｐ
Ｔ５・６の二次側の７１つの電圧を順次Ａ／１）変換回
路１３ｊこよｌ） Ａ ／ Ｄ変換した波形のブタから
、高圧側の電圧および位相をマイフンにより演算し、高
圧側コネクター１と負荷側コネクター２に加わっている
電圧か適合しでいるか否かを判別する。Next, press the phase detection button 33 of this device, and the voltage detection P
The 71 voltages on the secondary side of T5 and 6 are sequentially converted into A/1) conversion circuit 13j). From the A/D converted waveform, the voltage and phase on the high voltage side are calculated using a microphone, and the voltage and phase on the high voltage side are connected to the high voltage side connector 1. It is determined whether the voltage applied to the load side connector 2 is compatible or not.
適合している場合は１投入ＯＫＪの表示をデスプレー３
，１に表示する。If it is compatible, display 3 to display 1 input OKJ.
, 1.
高圧側に欠相かある場合は、デスプレー３４に例えば負
荷側Ｕ相が欠相している場合は「負荷側Ｕ相欠相」のよ
うに欠相表示する。If there is an open phase on the high pressure side, the display 34 displays an open phase message such as "Load side U phase open phase" if the U phase on the load side is open.
適合していない場合は、その不適合状態に応じて負荷側
コネクター２の交換表示を、［−交換Ｕ←→Ｖ］、「交
換■←→Ｗ」、「交換Ｕ←→Ｗ」、「交換Ｕ −＋ Ｖ
−Ｗ →Ｕ ｌ、［交換Ｕ−＋Ｗ−＋ Ｖ −＋ Ｕ
ｌ）５通りの内の、いずれかの交換表示か、デスプレ
ー３・４に表示される。If they are not compatible, the replacement display for the load side connector 2 will be changed depending on the non-conformity state. -+V
−W →U l, [exchange U−+W−+ V −+ U
l) One of the five exchange displays will be displayed on displays 3 and 4.
デスプレー３ノ￥の表示に従って負荷側コネクタ２を差
し替え後、検相スイフチ３３を押すとデスプレー３４に
「投入ＯＫＩが表示される。After replacing the load side connector 2 according to the indication on the display 3, press the phase detection switch 33, and the display 34 will display ``ON OKI''.
「投入ＯＫ」の表示を確認して投入スイッチ３１を押す
と、投入コイル３５か動作して高圧開閉器３か投入され
、デイプレー３４に１投入中」の表示か出るとともに赤
色表示灯３７か点灯し、第３図に示す電）原測り一ド線
２７と負荷側リド線２８間のバイパス回路か構成される
。After confirming the display of "Turning OK" and pressing the turning switch 31, the turning coil 35 operates, the high voltage switch 3 is turned on, and the message "1 feeding in progress" appears on the day play 34, and the red indicator light 37 lights up. However, a bypass circuit between the original power lead wire 27 and the load side lead wire 28 shown in FIG. 3 is constructed.
次に柱」二高圧開閉器２１とキユービクル内の高圧開閉
器２４を開放すると、キユービクル内の計器用変成器４
０は無充電化されるので、新しい計器用変成器に取り替
える。Next, when the pillar 2 high voltage switch 21 and the high voltage switch 24 in the cubicle are opened, the instrument transformer 4 in the cubicle is opened.
Since 0 is no longer charged, replace it with a new instrument transformer.
従って、取替作業間も電力負荷への電力供給はバイパス
回路から瞬時も停電することなく供給され、本装置の電
力量計９に計量される。Therefore, even during the replacement work, power is supplied to the power load from the bypass circuit without any momentary power outage, and the power is metered in the power meter 9 of this device.
計器用変成器４０の取り替えか終了したならば、柱）二
高圧開閉器２１を投入後、キユービクル内の高圧開閉器
２４の電源側と負荷側の両端子間を、検電検相して確認
後、高圧開閉器２４を投入して並列する。Once the instrument transformer 40 has been replaced, turn on the second high voltage switch 21 (pillar) and check the phase between the power supply side and load side terminals of the high voltage switch 24 in the cubicle. After that, the high voltage switch 24 is turned on and connected in parallel.
本装置の開放スイッチ３２を押して開放コイル；）６を
動作せしめて、高圧開閉器３を開放する。Press the open switch 32 of this device to operate the open coil ;) 6 and open the high voltage switch 3.
デスプレー３４には「開放しました。」の表示と共に、
緑色表示灯３８が点灯する。The display 34 displays the message "Opened."
The green indicator light 38 lights up.
次にリードコネクター２２と高圧接続クランプ２５を電
）原測り一ド線２７と負荷側リード線２８からそれぞれ
取り外す。Next, the lead connector 22 and the high voltage connection clamp 25 are removed from the original measuring lead wire 27 and the load side lead wire 28, respectively.
以−Ｌにより、瞬時停電もなく全く無停電で計器用変成
器・↓０の取り替えを、工事間の供給電力量のＪｌ量も
しながら行ない得るものである。By using the above-L, it is possible to replace the instrument transformer ↓0 without any momentary power outage and without any power outage, while maintaining the amount of power supplied during the construction work.
なお、高圧開閉器３か投入中に電源側か停電した場合は
、電源断の信号が＠２図に示す「割り込り回路１６」に
加えられ、マイコンに割り込みがかかり、マイコンから
の開放指令によって、高圧開閉器３か強制的に開放され
る。In addition, if there is a power outage on the power supply side while the high voltage switch 3 is being turned on, a power cut signal is applied to the "interrupt circuit 16" shown in Figure @2, which interrupts the microcomputer and issues an open command from the microcomputer. As a result, the high voltage switch 3 is forcibly opened.
これは高圧開閉器３か投入中のまま、池の場所に移動さ
れ、電源側と負荷側の相を誤って接続された場合、高圧
短絡事故を起こすので、電源側か停電した場合は、必ず
高圧開閉器３を開放せしめる構造として安全を期するも
のである。If this high-voltage switch 3 is moved to a pond while it is still on, and the phases on the power supply side and the load side are connected incorrectly, a high-voltage short circuit will occur, so be sure to This structure ensures safety by opening the high voltage switch 3.
また、作業中に停電かあった後、再送電された場合は、
一定時間以内の停電であれば゛、作業者の１′１１断に
よって投入モードまたは初期モードに戻せるよう構成す
る。In addition, if there is a power outage during work and the power is retransmitted,
If there is a power outage within a certain period of time, the system is configured so that the operator can turn off the power 1'11 to return to the input mode or initial mode.
本発明の高圧計器用変成器無停電取替装置は、高圧受電
需要家の計器用変成器４０の取り替えに際し、その計器
用変成器４０の受電回路を、高圧バイパス回路に、検電
・検相・並列切替により無停電で切替後、計器用変成器
４０の受電回路を柱上開閉器２１と高圧開閉器２４によ
り開放して、無電圧状態にして、取替作業を行なうので
安全であると共に、負荷への電力供給は、高圧バイパス
回路により瞬時も停電することなく、電力供給されるの
で、最近強く要請されている電力負荷への無停電供給へ
の要請に、容易に応えることがでとるものである。The high-voltage instrument transformer uninterruptible replacement device of the present invention connects the power receiving circuit of the instrument transformer 40 to the high-voltage bypass circuit when replacing the instrument transformer 40 of a high-voltage power receiving consumer. - After switching without interruption due to parallel switching, the power receiving circuit of the instrument transformer 40 is opened by the pole switch 21 and the high voltage switch 24, and the replacement work is performed in a no-voltage state, which is safe as well. Since power is supplied to the load without any momentary power outage due to the high-voltage bypass circuit, it is possible to easily meet the recent strong demand for uninterrupted power supply to the load. It is something.
更に作業間も供給電力量の計量がでとるので、後で作業
間の供給電力量の査定等の面倒な作業が省略でとる。Furthermore, since the amount of power supplied can be measured between tasks, troublesome tasks such as assessing the amount of power supplied between tasks can be omitted later.
また、比較的コンパクトに構成できるので、自動車への
搭載か可能であり、現場への持ち運びか便利である等多
くの優れた効果を有するものである。In addition, since it can be constructed relatively compactly, it can be installed in a car, and it has many excellent effects such as being convenient to carry to the site.
第１図は本発明の説明用回路図、第２図は本発明の詳細
な説明用ブロンク図、第３図は本発明の詳細な説明図。
１は高圧側コネクター、２は負荷側コネクタ３は高圧開
閉器、４は本装置の計器用変成器、５・６は電圧検出用
ＰＴ、７は電源用ＰＴ、８は制御部、９は電力量計、
１（）は制御部ノＲＯＭ、１１は同電源回路、１２は同
高圧開閉器３の操作回路、１３は同Ａ／Ｄ変換回路、１
４は停電時のデータ保管回路、１ＳはＰＩＯ１１６は割
り込み回路、］７はＣＩ） Ｕ、１８は検相スイッチ３
３・投入スイッチ３１・開放スイッチ３２並びに高圧開
閉器３の接点３９の読み取り回路、
２］は柱上高圧開閉器、２２はリードコネクター高圧開
閉器、２５は高圧接続クランプ、２６は負背側ケーブル
、２７は電源側リード線、２８は負荷側リード線、
３１は高圧開閉器３の投入スイフチ、３２は同開放スイ
・／チ、３３は検相スイフチ、３・１はデイスプレー、
３５は高圧開閉器３の投入コイル、３６は同開放コイル
、３７は赤色表示灯、３８は緑色表示灯、３９は高圧開
閉器の接点、４０はキユービクル内の計器用変成器。FIG. 1 is a circuit diagram for explaining the present invention, FIG. 2 is a detailed diagram for explaining the present invention, and FIG. 3 is a detailed diagram for explaining the present invention. 1 is a high voltage side connector, 2 is a load side connector, 3 is a high voltage switch, 4 is an instrument transformer of this device, 5 and 6 are PTs for voltage detection, 7 is a PT for power supply, 8 is a control unit, and 9 is a power supply Quantity meter, 1 () is the control unit ROM, 11 is the same power supply circuit, 12 is the operation circuit of the high voltage switch 3, 13 is the same A/D conversion circuit, 1
4 is a data storage circuit during a power outage, 1S is a PIO116 is an interrupt circuit, ]7 is a CI) U, 18 is a phase detection switch 3
3. Reading circuit for closing switch 31, opening switch 32, and contact 39 of high voltage switch 3, 2] is pole-mounted high voltage switch, 22 is lead connector high voltage switch, 25 is high voltage connection clamp, 26 is negative back side cable , 27 is the power supply side lead wire, 28 is the load side lead wire, 31 is the closing switch of the high voltage switch 3, 32 is the opening switch, 33 is the phase detection switch, 3.1 is the display,
35 is a closing coil of the high voltage switch 3, 36 is an opening coil thereof, 37 is a red indicator light, 38 is a green indicator light, 39 is a contact of the high voltage switch 3, and 40 is an instrument transformer in the cubicle.
Claims (1)
閉器と計器用変成器を接続した回路の、高圧開閉器の両
側に電圧検出用ＰＴをそれぞれＶ結線に接続するととも
に、高圧開閉器の電源側に電源用ＰＴを接続し、各ＰＴ
の二次側を、 検電・検相・デスプレー表示の機能、ならびに高圧開閉
器操作機能を、有する制御部に接続し、かつ、計器用変
成器には電力量計を接続してなる構造の、 検電・検相・並列切替により無停電にて、取引用の計器
用変成器の取り替えを、電力負荷の計量をもしながら、
できるようにしたことを特徴とする高圧計器用変成器無
停電取替装置。[Claims] In a circuit in which a high voltage switch and an instrument transformer are connected between a power supply side connector and a load side connector, voltage detection PTs are connected to V connections on both sides of the high voltage switch, and , connect the power supply PT to the power supply side of the high voltage switch, and
The secondary side of the transformer is connected to a control unit that has the functions of voltage detection, phase detection, display display, and high voltage switch operation function, and the power meter is connected to the instrument transformer. , We can replace instrument transformers for commercial use without power outages using voltage detection, phase detection, and parallel switching, while also measuring the power load.
An uninterruptible replacement device for high voltage instrument transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20901988A JP2607928B2 (en) | 1988-08-22 | 1988-08-22 | Transformer uninterruptible replacement equipment for high voltage instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20901988A JP2607928B2 (en) | 1988-08-22 | 1988-08-22 | Transformer uninterruptible replacement equipment for high voltage instruments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0260434A true JPH0260434A (en) | 1990-02-28 |
| JP2607928B2 JP2607928B2 (en) | 1997-05-07 |
Family
ID=16565921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20901988A Expired - Lifetime JP2607928B2 (en) | 1988-08-22 | 1988-08-22 | Transformer uninterruptible replacement equipment for high voltage instruments |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2607928B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013103058A1 (en) * | 2012-01-06 | 2013-07-11 | 株式会社日立産機システム | System linking device |
| CN104953695A (en) * | 2015-07-15 | 2015-09-30 | 山西太钢不锈钢股份有限公司 | Connecting line as well as power outage and transmission methods |
| KR102120585B1 (en) * | 2019-04-11 | 2020-06-08 | 이덕환 | Phase inspection equipment for by-pass construction method |
| CN114280342A (en) * | 2021-12-23 | 2022-04-05 | 广东电网有限责任公司 | Test junction box and method for replacing electric energy metering device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266960A (en) * | 1985-05-22 | 1986-11-26 | Tohoku Electric Power Co Inc | Replacing device for high voltage instrument |
| JPS6332818A (en) * | 1986-07-24 | 1988-02-12 | 中部電力株式会社 | Working switch with power/phase detecting function |
-
1988
- 1988-08-22 JP JP20901988A patent/JP2607928B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266960A (en) * | 1985-05-22 | 1986-11-26 | Tohoku Electric Power Co Inc | Replacing device for high voltage instrument |
| JPS6332818A (en) * | 1986-07-24 | 1988-02-12 | 中部電力株式会社 | Working switch with power/phase detecting function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013103058A1 (en) * | 2012-01-06 | 2013-07-11 | 株式会社日立産機システム | System linking device |
| CN104953695A (en) * | 2015-07-15 | 2015-09-30 | 山西太钢不锈钢股份有限公司 | Connecting line as well as power outage and transmission methods |
| KR102120585B1 (en) * | 2019-04-11 | 2020-06-08 | 이덕환 | Phase inspection equipment for by-pass construction method |
| CN114280342A (en) * | 2021-12-23 | 2022-04-05 | 广东电网有限责任公司 | Test junction box and method for replacing electric energy metering device |
| CN114280342B (en) * | 2021-12-23 | 2023-08-11 | 广东电网有限责任公司 | Test junction box and method for replacing electric energy metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2607928B2 (en) | 1997-05-07 |
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