TW202019044A - Improvement of dc control circuit breaker tripping system - Google Patents
Improvement of dc control circuit breaker tripping system Download PDFInfo
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本發明是一種直流控制斷路器斷電跳脫系統改良裝置,特別是改善以往大型配電(變電)站中,一般以電池組供電作為主控制迴路使用之受(配)電變站,當該直流供電系統發生問題,有事故發生時無法隔離事故的疑慮,本發明直流控制斷路器斷電跳脫系統改良裝置,引入電流偵測裝置降流單元的電能作為跳脫系統的備用電源,以驅動跳脫線圈使跳脫機構動作斷開斷路器,可以在以往跳脫迴路電源皆失能情況下,安全斷路跳脫隔離事故,安全可靠可增強其供電品質。 The present invention is an improved device for DC control circuit breaker power-off tripping system, especially to improve the conventional large-scale power distribution (transformation) station, which generally uses battery pack power supply as the main control loop for receiving (distribution) electrical substation. There is a problem with the DC power supply system, and there is a concern that the accident cannot be isolated when the accident occurs. The improved device of the DC control circuit breaker power-off trip system of the present invention introduces the power of the current detection device current-reduction unit as the backup power source of the trip system to drive The tripping coil causes the tripping mechanism to act to open the circuit breaker, which can safely disconnect the tripping and isolate the accident under the condition that the power supply of the tripping circuit is disabled in the past, and the safety and reliability can enhance the quality of its power supply.
在大型受(配)電站,為了供電系統的穩定性,若是在經費充裕的狀況下,並且在空間允許的狀況下,業主會選擇其受(配)電系統其控制電源採用大型電池組組裝之電池供電設備。一般而言,以電池組組成之供電系統,是比較妥善的供電方式。尤其台灣電力公司(TPC)對於高壓(36KV以上)的供受(配)電站,對於其斷路器的控制電源供電方式以直流供應為主,並且一般皆使用蓄電池組供電,以保護其受(配)電供電系統的穩定性。 In large power receiving (distribution) power stations, in order to ensure the stability of the power supply system, under sufficient financial conditions and space permitting conditions, the owner will choose their power receiving (distribution) system whose control power is assembled with large battery packs Battery powered equipment. Generally speaking, a power supply system composed of battery packs is a more appropriate power supply method. In particular, the Taiwan Power Company (TPC) provides high-voltage (above 36KV) power supply and distribution (distribution) power stations, and its circuit breaker control power supply is mainly DC supply, and generally uses battery packs to protect its power supply (distribution). ) The stability of the electric power supply system.
高壓斷路器(H.V.CB)或特高壓CGIS或GIS,是接受保護電 驛(Relay)的指令,做為是否跳脫高壓斷路器,將事故源隔離。因此該斷路器如果不能如期在某一事業單位(受電方)發生短路事故時立即跳脫,將會造成高壓斷路器(H.V.CB)損壞,而擴及到影響主供電幹線供應電源給其他的事業單位(受電方),造成連鎖性的產業損失。高壓斷路器能否及時跳脫,受控於保護電驛(Relay)是否能即時發出指令。因此,當提供保護電驛的工作電源有問題時,該保護電驛就不會動作;該保護電驛不會動作時,高壓CB在事故發生時也就不會動作,無法隔離事業單位的事故點,造成嚴重的二次事故,甚至影響台電供電饋線跳脫!不可不慎。由於此高危險性的工安事件常因誤判而產生意外,於是供電幹線的業者(台灣電力公司)為防止電驛於短路事故時,因電壓驟降無法動作觸發斷路器跳脫,及因比流器飽和遲緩動作,要求事業單位要按照規定設置保護系統,才會答應供電。主要的規定內容是:採比壓器二次側電源供應時,應輔以電容跳脫裝置(CTD)或輔以電容跳脫裝置再併接不斷電系統(UPS),且供電子式或數位式電驛使用之電容跳脫裝置(CTD),不得接供斷路器或其他設備使用。這是理想,但意外常常來自於理想狀況下,實務上不斷電系統(UPS)一年、兩年後幾乎都會因電池老化而故障。若是使用蓄電池組為主的直流供電系統,其電池一年後可能會失能,但是事業單位卻不會察覺到,通常都是有短路事故時,發現高壓斷路器(H.V.CB)不會跳脫,發現沒有跳脫迴路的直流工作電源無法供應工作電源給保護電驛(Relay),但為時已晚。 High voltage circuit breaker (H.V.CB) or extra high voltage CGIS or GIS, is to receive protection The relay (Relay) command is used as whether to trip the high-voltage circuit breaker to isolate the source of the accident. Therefore, if the circuit breaker cannot be tripped immediately when a short-circuit accident occurs in a certain business unit (receiver) as scheduled, it will cause damage to the high-voltage circuit breaker (HVCB) and extend to affect the main power supply line to supply power to other businesses Units (receivers), causing chain-like industrial losses. Whether the high-voltage circuit breaker can be tripped in time is controlled by whether the protection relay (Relay) can issue an immediate command. Therefore, when there is a problem with the working power supply of the protection relay, the protection relay will not operate; when the protection relay will not operate, the high-voltage CB will not operate when an accident occurs, and the accident of the business unit cannot be isolated Point, causing serious secondary accidents and even affecting the feeder tripping of Taipower! Don't be careless. Due to this high-risk industrial safety incident, accidents often occur due to misjudgment, so the power supply line operator (Taiwan Power Company), in order to prevent the relay from being short-circuited, cannot trigger the circuit breaker trip due to the sudden voltage drop, and The saturable slow action of the flow device requires the public institution to set up a protection system in accordance with the regulations before it is allowed to supply power. The main provisions are: when the secondary side power supply of the sampling and voltage regulator is supplemented by a capacitor trip device (CTD) or a capacitor trip device and then connected to a continuous power system (UPS), and the power supply type or The capacitor tripping device (CTD) used in digital relays shall not be connected to circuit breakers or other equipment. This is ideal, but accidents often come from ideal conditions. In practice, the uninterruptible power system (UPS) will almost always fail due to battery aging after one or two years. If the DC power supply system mainly uses battery packs, the battery may be disabled after one year, but the business unit will not be aware of it. Usually, when there is a short circuit accident, it is found that the high voltage circuit breaker (HVCB) will not trip. It was found that the DC working power supply without tripping circuit could not supply the working power supply to the protection relay (Relay), but it was too late.
有鑑於上述因素,因此其蓄電池組的直流供電電能失能時,在這段期間內若是系統發生事故時(無論是任何事故情況),例如CO、LCO、UV、OV……等,其隔離事故點的斷路器,會因為其供給跳脫迴路的 工作電源(蓄電池組之直流電源)失能而會造成高壓盤於系統故障時,跳脫迴路沒有工作電源,而無法隔離事故點的嚴重情形。 In view of the above factors, if the DC power supply of the battery pack is disabled, during this period, if the system has an accident (whether it is any accident), such as CO, LCO, UV, OV, etc., it will isolate the accident Point circuit breaker, because it supplies the circuit breaker When the working power supply (the DC power supply of the battery pack) is disabled and will cause the high-voltage disk to fail in the system, the trip circuit has no working power supply and cannot isolate the serious situation of the accident point.
在習有以直流蓄電池組為控制電源的系統,可以有單一直流蓄電池組來提供直流電源或者以兩組直流蓄電池組相互支援的方式來提供直流電源,以做為整體配電系統的直流電源供應。實際的配電盤中,其中保護電驛以及斷路器的跳脫迴路中,其中保護電驛的工作電源一般為AC與DC皆可使用以提供其所需之工作電源。在一般的情況下,會以直流電源為優先考量(AC與DC二者只能選定一種),因為一般而言直流電源比較穩定可靠,因此一般以蓄電池組為主的直流供電系統為客戶最喜愛的選項,在場所及經濟皆允許情況下。 In a conventional system that uses a DC battery pack as a control power supply, a single DC battery pack can be used to provide DC power, or two sets of DC battery packs can support each other to provide DC power as a DC power supply for the overall power distribution system. In the actual switchboard, the protection relay and the tripping circuit of the circuit breaker, the working power of the protection relay is generally AC and DC can be used to provide the required working power. Under normal circumstances, DC power is the priority (only one of AC and DC can be selected). Generally speaking, DC power is relatively stable and reliable, so the DC power supply system mainly based on battery packs is the customer's favorite Options, where the place and economy allow.
在實際狀態是其蓄電池組器材本身的特性,在一年至兩年間會損耗老化而有失能的疑慮,甚至在整個控制電路間也可能發生一些不可預期的狀況,使得該系統中,當跳脫迴路的工作電源失能時,此時如同在使用交流電源(AC source)做為跳脫控制迴路工作電源一般;為防止事故發生時,因為電壓驟降,若直流電源又失能時,可能產生無法使保護電驛作動而造成事故發生。為防止上述情事發生,開發一種可以提供直流電能的控制迴路失能時可能發生的事故,而直流控制斷路器斷電跳脫系統改良裝置可以解決上述的問題的方法之一種。 The actual state is the characteristics of its battery pack equipment. It will wear out and age in one to two years, and there is the possibility of disability. Even unpredictable conditions may occur between the entire control circuit, making the system When the working power supply of the de-loop circuit is disabled, it is generally like using an AC power source as the working power source of the trip control circuit; in order to prevent accidents, because of the sudden voltage drop, if the DC power supply is disabled, it may be The occurrence of an accident that cannot activate the protective relay. In order to prevent the above situation from happening, an accident that may occur when the control circuit that can provide DC power is disabled, and an improved device for the DC control circuit breaker power-off and trip system can solve one of the above problems.
本發明申請人對於高壓配電系統中,其高壓配電盤中的跳脫迴路工作電源改善方式,已經有數個方案提出並申請專利。尤其在電容跳脫裝置CTD的改良方面,從在有載之下可測試,有電錶顯示其電壓值,到盤面式可以有效防止因開啟高壓配電盤而可能引起的工安事故預防,有 電壓比較電路及警報電路的電容跳脫裝置可以解決電容器會因時間而衰減的問題,有時間電路與電壓比較電路的組合,可以每日或設定時間以模擬事故發生時,其跳脫迴路工作電源是否足以推動其負載設備以隔離事故,進一步有自動電源轉換電路的CTD,以防止電容跳脫裝置故障時,外部電源有交流及直流電源的支援,以及可以解決電壓以及電容量和通訊的問題,以及直流控制斷路器跳脫使用直流電容跳脫裝置,以上的解決方案是目前市場的產品。 The applicant of the present invention has proposed and applied for several schemes for the improvement of the working power of the trip circuit in the high-voltage distribution board of the high-voltage distribution system. Especially in the improvement of the CTD of the capacitor tripping device, from the test under load, the meter displays its voltage value, and the panel type can effectively prevent the prevention of industrial safety accidents that may be caused by opening the high-voltage switchboard. The capacitor tripping device of the voltage comparison circuit and the alarm circuit can solve the problem that the capacitor will decay with time. There is a combination of the time circuit and the voltage comparison circuit, which can simulate the accident when the accident occurs. Whether it is enough to promote its load equipment to isolate the accident, and there is a CTD of automatic power conversion circuit to prevent the failure of the capacitor trip device, the external power supply is supported by AC and DC power supply, and can solve the problems of voltage, capacitance and communication, And DC control circuit breaker tripping uses DC capacitor tripping device, the above solution is a product of the current market.
綜上所述,以直流電源或交流電源為主的控制迴路,使用於高壓盤的跳脫迴路工作電能失能時,在現場中所面臨實際的狀況,以往並無法有效的來解決該問題,於是從現場中的狀況實際需求,直流控制斷路器斷電跳脫系統改良裝置可以解決上述的問題,同時提昇其配電系統的安全性及穩定性。 In summary, when the control circuit based on DC power or AC power is used in the trip circuit of the high-voltage disk and the electrical energy is disabled, the actual situation in the field is faced. In the past, this problem could not be effectively solved. Therefore, from the actual needs in the field, the improved device of the DC control circuit breaker power-off tripping system can solve the above problems, and at the same time improve the safety and stability of its power distribution system.
一種直流控制斷路器斷電跳脫系統改良裝置,可以有效解決市場上因為以直流電源為主作為跳脫迴路的工作電源,一般以電池組做儲能方式為主,只有單一的保護,於是在該以直流電源供應為主的控制迴路,加裝該直流控制斷路器斷電跳脫系統改良裝置。在不改變原本系統保護電驛所設定保護協調的情況下,不改變原有配電盤的結構,以及已經定型試驗過的高壓斷路器的狀態下,由原本電力系統中本身的比壓器PT二次側的電壓源以及比流器CT二次側的電流源,再串接保護電驛常開接點,再串接斷電路的跳脫線圈以連動內部跳脫機構以斷開該斷路器,以改善以往 的問題。 An improved device for DC controlled circuit breaker power-off and tripping system, which can effectively solve the market because DC power is mainly used as the working power of the trip circuit. Generally, the battery pack is used as the energy storage method, and there is only a single protection. The control circuit mainly based on DC power supply is equipped with the improved device of the DC control circuit breaker power-off and trip system. Without changing the protection coordination set by the original system protection relay, without changing the structure of the original switchboard and the state of the high-voltage circuit breaker that has been type-tested, the voltage divider PT in the original power system is secondary The voltage source on the side and the current source on the secondary side of the CT are connected in series with the normally open contact of the protection relay, and then connected in series with the trip coil of the circuit to connect the internal trip mechanism to open the circuit breaker. To improve the past The problem.
為達到上述目的,一種直流控制斷路器斷電跳脫系統改良裝置:其係與一電力迴路電性連結,且該電力迴路具至少有一供斷開該電力迴路之斷路器的跳脫線圈以連動該斷路器的跳脫機構斷開該斷路器;而該直流控制斷路器斷電跳脫系統改良裝置包括:一設於該電力迴路上至少一只之電壓偵測裝置,該電壓偵測裝置包含一供降低輸出電壓之降壓單元;一設於該電力迴路上至少一只之電流偵測裝置,該電流偵測裝置包含一供降低輸出電流之降流單元;一設於該電力迴路上至少一只保護電驛,該保護電驛依該電力系統線路狀態,設定其保護電氣安全設定值至少一種如電流、接地、電壓、頻率、溫度…等,當該偵測裝置數值大於該電氣安全設定值時,該保護電驛常開接點作動導通;一跳脫迴路電源電路,至少電性連結直流系統電源、電流偵測裝置降流單元、電壓偵測裝置降壓單元或外接支援電源;一電源自動交替電路,電性連結跳脫迴路電源電路,該電源自動交替電路以適當的電能輸出做為跳脫迴路驅動斷路器的跳脫線圈的電能;一電容儲能電路,該電容儲能電路電性連結跳脫迴路電源電路,儲能適當的直流電能;依電力迴路系統線路、負載狀態及系統保護協調的需求及順序控制之保護設定電路,該保護設定電路作動導通接點並可依需求與遠端智能強制斷電指令接點並聯接續;一感測裝置連結單元,該感測裝置連結單元至少包含電流偵測裝置、電壓偵測裝置二種以上之感測裝置;一外部設備裝置連結單元,該外部設備裝置連結單元至少包含一保護電驛常開接點、斷路器的跳脫線圈兩端或遠端智能強制斷電指令接點;一 接點狀態顯示單元,該接點狀態顯示單元可顯示該系統跳脫迴路的狀態;一種直流控制斷路器斷電跳脫系統改良裝置可依直流電源電能、電壓源電能、電流源電能或外接電能,經電源自動交替電路提供跳脫驅動電能再串接保護電驛常開接點,或保護電驛常開接點再並接遠端智能強制斷電指令接點,以及串接該斷路器閉合輔助接點,再串接該斷路器的跳脫線圈形成一之跳脫迴路系統。當該保護電驛常開接點或遠端智能強制斷電指令接點導通,以及串接之該斷路器閉合輔助接點作動導通時,該斷路器的跳脫線圈係受跳脫迴路電源電路之電能或電流偵測裝置之降流單元的電能作動,以驅動該斷路器的跳脫機構以斷開該斷路器。 To achieve the above object, an improved device for a DC-controlled circuit breaker power-off and trip system: it is electrically connected to a power circuit, and the power circuit has at least one trip coil for disconnecting the circuit breaker of the power circuit for interlocking The tripping mechanism of the circuit breaker disconnects the circuit breaker; and the improved device of the DC control circuit breaker power-off and tripping system includes: a voltage detection device provided on at least one of the power circuit, the voltage detection device including A voltage reduction unit for reducing the output voltage; a current detection device provided on at least one of the power circuits, the current detection device including a current reduction unit for reducing the output current; and a power reduction unit provided on the power circuit A protection relay, the protection relay sets at least one of its protection electrical safety settings such as current, ground, voltage, frequency, temperature, etc. according to the state of the power system circuit, when the value of the detection device is greater than the electrical safety setting When the value is set, the normally open contact of the protection relay is activated; a trip circuit power circuit is at least electrically connected to the DC system power supply, the current detection device current reduction unit, the voltage detection device voltage reduction unit or an external support power supply; Automatic power supply alternating circuit, which is electrically connected to the trip circuit power supply circuit. The automatic power supply alternating circuit uses appropriate electrical energy output as the electrical energy of the trip coil driving the circuit breaker of the trip circuit; a capacitor energy storage circuit, the capacitor energy storage circuit Electrically connected trip circuit power supply circuit, suitable for storing DC energy; a protection setting circuit that is controlled according to the requirements and sequence of the power circuit system line, load status, and system protection coordination. The protection setting circuit operates the conduction contact and can be based on the demand. Connect with the remote intelligent forced power off command contact and continue; a sensing device connecting unit, the sensing device connecting unit includes at least two types of sensing devices: a current detection device and a voltage detection device; an external device device connection Unit, the external device connection unit at least contains a protection relay normally open contact, both ends of the trip coil of the circuit breaker or a remote intelligent forced power off command contact; Contact status display unit, the contact status display unit can display the status of the system trip circuit; a DC control circuit breaker power off trip system improvement device can be based on DC power energy, voltage source power, current source power or external power ,Provide tripping drive power through the automatic power supply alternate circuit and then connect the normally open contact of the protection relay in series, or connect the normally open contact of the protection relay and then connect the remote intelligent forced power off command contact, and connect the circuit breaker in series The auxiliary contact is connected in series with the trip coil of the circuit breaker to form a trip circuit system. When the normally open contact of the protection relay or the remote intelligent forced power off command contact is turned on, and the auxiliary contact of the circuit breaker closed in series is activated, the trip coil of the circuit breaker is subject to the trip loop power circuit The electrical energy or the electrical energy of the current lowering unit of the current detection device is activated to drive the trip mechanism of the circuit breaker to open the circuit breaker.
為達到上述目的,一種直流控制斷路器斷電跳脫系統改良裝置:其係與一電力迴路電性連結,且該電力迴路具至少有一供斷開該電力迴路之斷路器的跳脫線圈以連動該斷路器的跳脫機構斷開該斷路器;而該直流控制斷路器斷電跳脫系統改良裝置包括:一設於該電力迴路上至少一只之電壓偵測裝置,該電壓偵測裝置包含一供降低輸出電壓之降壓單元;一設於該電力迴路上至少一只之電流偵測裝置,該電流偵測裝置包含一供降低輸出電流之降流單元;一設於該電力迴路上至少一只保護電驛,該保護電驛依該電力系統線路狀態,設定其保護電氣安全設定值至少一種如電流、接地、電壓、頻率、溫度……等,當該偵測裝置數值大於該電氣安全設定值時,該保護電驛常開接點作動導通;一跳脫迴路電源電路,至少電性連結直流系統電源、電流偵測裝置降流單元、電壓偵測裝置降壓單元或外接支援電源;一交直流轉換電路,該交直流轉換電路電性連結至電壓偵測裝置之降壓單元,或外接交流電能,將交流電能轉換為直流電能, 並且以電容器儲能將直流電能電性連接至電容器儲能;一電源自動交替電路,電性連結跳脫迴路電源電路,該電源自動交替電路以適當的電能輸出做為跳脫迴路驅動斷路器的跳脫線圈的電能;一電容儲能電路,該電容儲能電路電性連結跳脫迴路電源電路,儲能適當的直流電能;依電力迴路系統線路、負載狀態及系統保護協調的需求及順序控制之保護設定電路,該保護設定電路作動導通接點並可依需求與遠端智能強制斷電指令接點並聯接續;一感測裝置連結單元,該感測裝置連結單元至少包含電流偵測裝置、電壓偵測裝置二種以上之感測裝置;一外部設備裝置連結單元,該外部設備裝置連結單元至少包含一保護電驛常開接點、斷路器的跳脫線圈兩端或遠端智能強制斷電指令接點;一接點狀態顯示單元,該接點狀態顯示單元可顯示該系統跳脫迴路的狀態;一種直流控制斷路器斷電跳脫系統改良裝置可依直流電源電能、電壓源電能、電流源電能或外接電能為電力來源,經電源自動交替電路提供跳脫驅動電能再串接保護電驛常開接點,或保護電驛常開接點再並接遠端智能強制斷電指令接點,以及串接該斷路器閉合輔助接點,再串接該斷路器的跳脫線圈形成一之跳脫迴路系統。當該保護電驛常開接點或遠端智能強制斷電指令接點導通,該斷路器閉合輔助接點作動導通時,該斷路器的跳脫線圈係受跳脫迴路電源電路之電能或電流偵測裝置之降流單元的電能作動,以驅動該斷路器的跳脫機構以斷開該斷路器。 To achieve the above object, an improved device for a DC-controlled circuit breaker power-off and trip system: it is electrically connected to a power circuit, and the power circuit has at least one trip coil for disconnecting the circuit breaker of the power circuit for interlocking The tripping mechanism of the circuit breaker disconnects the circuit breaker; and the improved device of the DC control circuit breaker power-off and tripping system includes: a voltage detection device provided on at least one of the power circuit, the voltage detection device including A voltage reduction unit for reducing the output voltage; a current detection device provided on at least one of the power circuits, the current detection device including a current reduction unit for reducing the output current; and a power reduction unit provided on the power circuit A protection relay, the protection relay sets at least one of its protection electrical safety settings such as current, ground, voltage, frequency, temperature, etc. according to the state of the power system circuit, when the value of the detection device is greater than the electrical safety At the set value, the normally open contact of the protection relay is activated; a trip power supply circuit is at least electrically connected to the DC system power supply, current detection device current reduction unit, voltage detection device voltage reduction unit or external support power supply; An AC/DC conversion circuit, which is electrically connected to the voltage reduction unit of the voltage detection device, or externally connected to AC power to convert AC power into DC power, And the capacitor energy storage is used to electrically connect the DC energy to the capacitor energy storage; a power supply automatic alternating circuit, which is electrically connected to the trip circuit power circuit, and the power automatic switching circuit uses the appropriate energy output as the trip circuit to drive the circuit breaker The electrical energy of the trip coil; a capacitor energy storage circuit, which is electrically connected to the trip loop power supply circuit and stores appropriate DC energy; according to the needs and sequence control of the power loop system circuit, load status and system protection coordination Protection setting circuit, the protection setting circuit actuates the conduction contact and can be connected with the remote intelligent forced power-off command contact according to the demand; a sensing device connection unit, the sensing device connection unit at least includes a current detection device, More than two kinds of sensing devices for voltage detection devices; an external equipment device connection unit, the external equipment device connection unit includes at least a protection relay normally open contact, both ends of the trip coil of the circuit breaker or remote intelligent forced disconnection Electric command contact; a contact status display unit, the contact status display unit can display the status of the system trip circuit; a DC control circuit breaker power-off trip system improvement device can be based on DC power energy, voltage source energy, The current source power or external power is the power source, and the tripping drive power is provided through the automatic alternating circuit of the power supply, and then the protection relay normally open contact is connected in series, or the protection relay normally open contact is connected in parallel with the remote intelligent forced power off command connection. Point, and the circuit breaker is connected in series to close the auxiliary contact, and then the trip coil of the circuit breaker is connected in series to form a trip circuit system. When the normally open contact of the protection relay or the remote intelligent forced power off command contact is turned on, and the circuit breaker is closed and the auxiliary contact is activated, the trip coil of the circuit breaker is subject to the power or current of the trip circuit power circuit The electric energy of the current lowering unit of the detection device is activated to drive the trip mechanism of the circuit breaker to open the circuit breaker.
1‧‧‧直流控制斷路器斷電跳脫系統改良裝置 1‧‧‧Improved device for DC control circuit breaker power-off tripping system
10‧‧‧斷路器 10‧‧‧ circuit breaker
11‧‧‧電流偵測裝置 11‧‧‧Current detection device
12‧‧‧電壓偵測裝置 12‧‧‧Voltage detection device
13‧‧‧跳脫機構 13‧‧‧ Tripping mechanism
14‧‧‧斷路器閉合輔助接點 14‧‧‧ circuit breaker closing auxiliary contact
15‧‧‧跳脫線圈 15‧‧‧ Trip coil
16‧‧‧保護電驛常開接點 16‧‧‧Protection relay normally open contact
17‧‧‧遠端智能強制斷電指令接點 17‧‧‧Remote intelligent forced power off command contact
18‧‧‧跳脫迴路電源電路 18‧‧‧ Trip circuit power circuit
19‧‧‧保護電驛 19‧‧‧Protection relay
20‧‧‧電源自動交替電路 20‧‧‧ Power supply automatic alternating circuit
21‧‧‧感測裝置連結單元 21‧‧‧sensing device connection unit
22‧‧‧外部設備裝置連結單元 22‧‧‧External equipment connection unit
23‧‧‧接點狀態顯示單元 23‧‧‧Contact status display unit
24‧‧‧電池單元 24‧‧‧Battery unit
28‧‧‧控制迴路電源 28‧‧‧Control circuit power supply
181‧‧‧第一偵測電路 181‧‧‧ First detection circuit
182‧‧‧第一顯示單元 182‧‧‧First display unit
183‧‧‧模擬故障發生電路 183‧‧‧Simulation fault generating circuit
184‧‧‧交直流轉換電路 184‧‧‧AC-DC conversion circuit
185‧‧‧直流電源交替電路 185‧‧‧ DC power alternating circuit
186‧‧‧第二偵測電路 186‧‧‧ Second detection circuit
187‧‧‧第二顯示單元 187‧‧‧Second display unit
188,189‧‧‧開關B接點 188,189‧‧‧B contact
190‧‧‧電容儲能電路 190‧‧‧ capacitor energy storage circuit
191‧‧‧直流電源並聯輸出電路 191‧‧‧DC power supply parallel output circuit
192‧‧‧第三偵測電路 192‧‧‧The third detection circuit
193‧‧‧第三顯示單元 193‧‧‧ Third display unit
圖1直流控制斷路器斷電跳脫系統改良裝置配線示意圖 Figure 1 Schematic diagram of the improved device wiring of the DC control circuit breaker power-off trip system
圖2電流偵測裝置(比流器)示意圖 Figure 2 Schematic diagram of current detection device (current ratio)
圖3直流控制斷路器斷電跳脫系統改良裝置跳脫迴路動作示意圖 Figure 3 Schematic diagram of the trip circuit action of the improved device of the DC control circuit breaker power-off trip system
圖4直流控制斷路器斷電跳脫系統改良裝置架構示意圖 Figure 4 Schematic diagram of the improved device architecture of the DC control circuit breaker power-off trip system
本發明直流控制斷路器斷電跳脫系統改良裝置,所實施的較佳實施例,如第1圖所示,其電力迴路上設有一斷路器10,該斷路器10有一跳脫線圈15,該跳脫線圈15連動其該斷路器10的跳脫機構13;該電力迴路上設有一電壓偵測裝置12(如比壓器),該電壓偵測裝置12包含一供降低輸出電壓之降壓單元;該降壓單元電性連結至保護電驛19及控制迴路電源28。該電力迴路上亦設有一電流偵測裝置11(如比流器),該電流偵測裝置11包含一供降低輸出電流之降流單元;該降流單元電性連結至保護電驛19及控制迴路電源28,該控制迴路電源28經電源自動交替電路20,選擇對應的電能串接至保護電驛19以連結保護電驛常開接點16。該保護電驛19依該電力系統線路、負載狀態及保護協調需求,設定其保護電氣安全設定值,達到保護設定值時,該保護電驛常開接點16作動導通,並可並接遠端智能強制斷電指令接點17,再串接該斷路器閉合輔助接點14,再串接該斷路器10的跳脫線圈15串接形成一跳脫迴路系統。如此即可引入電流偵測裝置11(如比流器)的電能以及電壓偵測裝置12(如比壓器)的電能,進一步改善當事故發生時,能確保該斷路器10的跳脫線圈15有足夠的電能驅動,以隔離事故。
The preferred embodiment of the improved device for the DC-controlled circuit breaker power-off and trip system of the present invention is shown in FIG. 1, where a
請參考第2圖針對本發明之原理做進一步之說明。如圖2陰影方框所示為一般電流偵測裝置(比流器)的示意圖,電流偵測裝置11之降流單元電流流經一電流錶,形成一完整迴路。而為進一步引入電流偵測裝置11(如比流器)的電流做為斷路器10跳脫線圈15的電源,本發明於電流偵測裝置11之降流單元並聯一側支路徑。此一側支路徑於電力系統正常時,
保護電驛19未動作內部的保護電驛常開接點16開路,而斷路器10之斷路器閉合輔助接點14為導通狀態,此時並未有電流流經側支路徑。但當電力系統故障,保護電驛19動作該保護電驛常開接點16導通及斷路器閉合輔助接點14亦導通,側支路徑即為構成一完整迴路導通狀態,電流偵測裝置11(如比流器)的降流電元電流即通過側支路徑,因而可做為斷路器10跳脫線圈15驅動所需之電力。
Please refer to FIG. 2 for further description of the principle of the present invention. As shown in the shaded box in FIG. 2, it is a schematic diagram of a general current detection device (current comparator). The current of the current-dropping unit of the
將前述電流偵測裝置11(如比流器)降流單元側支路徑的技術特徵與習用斷路器跳脫電源的設計結合,請參閱第3圖。第3圖左上方陰影方塊,表示習用直流系統電容跳脫裝置中以電池單元24做為斷路器10跳脫線圈15的跳脫電源,其通常在一般情況下,是足以提供斷路器10跳脫線圈15所需的驅動電源。但當電池單元24因人為疏忽、天災巨變、或過期而失能,將無法驅動該跳脫線圈15以隔離事故,此時將產生巨大危害。如將前述引入電流偵測裝置11(如比流器)的降流單元電流源的技術特徵整合,從第3圖可見,當系統故障(保護電驛常開接點16接點導通),若習用技藝之電池單元24失能時,此時電力迴路的電流仍持續通過斷路器10,因此電流偵測裝置11(如比流器)的降流單元的電流源仍持續有電流流通(參閱第2圖)。而此時電源自動交替電路20因習用技藝之電池單元24失能係切換到電流偵測狀置11的迴路,電流如虛線箭號所示流進斷路器10的跳脫線圈15,以驅動跳脫機構13作動,因而可以切斷斷路器10的閉合主接點以隔離事故點,進一步提昇了斷路器跳脫迴路系統的穩定性,以確保電力系統運作的安全。
Combining the technical characteristics of the side branch path of the current-reducing unit of the current detection device 11 (such as a current transformer) with the design of the conventional circuit breaker tripping power supply, please refer to FIG. 3. The shaded square in the upper left of Figure 3 indicates that the
依據前述原理,本發明直流控制斷路器斷電跳脫系統改良裝置之較佳實施例如功能方塊圖如第4圖所示,直流控制斷路器斷電跳脫系
統改良裝置1具有連接電池單元24的直流輸入端及連接電壓偵測裝置12之降壓單元的交流輸入端。電池單元24作為斷路器跳脫迴路操作所需的電源。另電壓偵測裝置12之降壓單元連接到交流輸入端,經由一交直流轉換電路184轉換為直流電源,該交流轉換電路184一般為橋式整流濾波,此一轉換後之直流電源可做為電路所需的電源,或與來自電池單元24之電源輸出,同時連接到一直流電源交替電路185,該直流電源交替電路185,當電壓偵測裝置12之降壓單元有電時,優先選用交流轉換電路184的直流電源輸出,藉此對電容儲能電路190充電,利用電容儲存跳脫迴路所需之電能。如電壓偵測裝置12之降壓單元失能,直流電源交替電路185選用電池單元24的電源,對電容儲能電路190充電。直流電源交替電路185,通常可使用2A2B1C之繼電器模組或功能相同之切換模組達成(未圖示)。直流電源交替電路185的輸出電源(即電容儲能電路190的輸出電源)與電池單元24的電源,並同時輸入到直流電源並聯輸出電路191,該直流電源並聯輸出電路191並以電容儲能電路190的電能作為優先之提供跳脫迴路所需之電源。直流電源並聯輸出電路191,通常可使用2A2B1C之繼電器模組或功能相同之切換模組達成(未圖示)。而為便於檢視跳脫迴路電源電路18的狀態,電池單元24、電容儲能電路190、直流電源並聯輸出電路191的輸出,可各自連結到偵測電路及顯示單元,如錶頭、七段顯示器或其他液晶顯示面板(未圖示)。偵測電路設有電壓比較電路,以判斷電壓是否高於一預設值,以進行必要之警示。
Based on the foregoing principles, a preferred embodiment of the improved device for the DC-controlled circuit breaker power-off and trip system of the present invention is a functional block diagram shown in FIG. 4.
The
而如圖2所示之電流偵測裝置示意圖,將側支路徑及直流電源並聯輸出電路191的輸出,連結到電源自動交替電路20,電源自動交替電
路20優先選用來自直流電源並聯輸出電路191的電源,直流電源並聯輸出電路191的電源失能時,則切換到電流偵測裝置11之降流單元的側支路徑,此時保護電驛常開接點16導通,斷路器閉合輔助接點14亦導通,電流偵測裝置11降流單元的電流流經側支路徑,以驅動跳脫線圈15使跳脫機構13作動,隔離事故點。同理,電源自動交替電路20,通常可使用2A2B1C之繼電器模組或功能相同之切換模組達成(未圖示)。第4圖中之模擬故障發生電路183用以方便測試跳脫迴路電源電路18的工作狀態。另遠端智能強制斷電指令接點17可接受來自遠端的外部指令,以進行斷路器10的跳脫線圈15遠端控制,遠端控制例如可透過串列通訊模組(如RS485、RS422或RS232等通訊埠)來達成,串列通訊模組較佳為與微控制器介面結合執行信號或控制命令的發射與接收。
As shown in the schematic diagram of the current detection device shown in FIG. 2, the side branch path and the output of the
綜上所述,本發明直流控制斷路器斷電跳脫系統改良裝置,進一步提昇了斷路器跳脫迴路系統的穩定性,深具產業之利用性,且查市面上之相關產品及已核准之專利公告中,並未見與本發明實質之技術特徵相同者,亦符合新穎性及進步性之法定專利申請要件。援依法提出專利申請,懇請貴 審查委員能早日賜予本案專利,以確保申請人之權益。惟本案所揭露者,僅為本發明之較佳實施例,自不能以此限定本發明之權利範圍,凡依本發明精神所作之等效變更或修飾者,仍涵蓋於本發明之申請專利範圍中。 In summary, the improved device of the DC controlled circuit breaker power-off tripping system of the present invention further improves the stability of the circuit breaker tripping circuit system, has deep industrial applicability, and checks related products and approved ones on the market In the patent announcement, it is not seen that the technical characteristics of the invention are the same, and it also meets the novelty and progressive legal patent application requirements. Aid to file a patent application in accordance with the law, and urge your reviewer to grant the patent in this case as soon as possible to ensure the rights and interests of the applicant. However, the ones disclosed in this case are only the preferred embodiments of the present invention, which cannot be used to limit the scope of the rights of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are still covered by the patent application scope of the present invention in.
1‧‧‧直流控制斷路器斷電跳脫系統改良裝置 1‧‧‧Improved device for DC control circuit breaker power-off tripping system
10‧‧‧斷路器 10‧‧‧ circuit breaker
11‧‧‧電流偵測裝置 11‧‧‧Current detection device
12‧‧‧電壓偵測裝置 12‧‧‧Voltage detection device
13‧‧‧跳脫機構 13‧‧‧ Tripping mechanism
14‧‧‧斷路器閉合輔助接點 14‧‧‧ circuit breaker closing auxiliary contact
15‧‧‧跳脫線圈 15‧‧‧ Trip coil
16‧‧‧保護電驛常開接點 16‧‧‧Protection relay normally open contact
17‧‧‧遠端智能強制斷電指令接點 17‧‧‧Remote intelligent forced power off command contact
18‧‧‧跳脫迴路電源電路 18‧‧‧ Trip circuit power circuit
19‧‧‧保護電驛 19‧‧‧Protection relay
20‧‧‧電源自動交替電路 20‧‧‧ Power supply automatic alternating circuit
21‧‧‧感測裝置連結單元 21‧‧‧sensing device connection unit
22‧‧‧外部設備裝置連結單元 22‧‧‧External equipment connection unit
23‧‧‧接點狀態顯示單元 23‧‧‧Contact status display unit
24‧‧‧電池單元 24‧‧‧Battery unit
181‧‧‧第一偵測電路 181‧‧‧ First detection circuit
182‧‧‧第一顯示單元 182‧‧‧First display unit
183‧‧‧模擬故障發生電路 183‧‧‧Simulation fault generating circuit
184‧‧‧第一交直流轉換電路 184‧‧‧The first AC-DC conversion circuit
185‧‧‧直流電源交替電路 185‧‧‧ DC power alternating circuit
186‧‧‧第二偵測電路 186‧‧‧ Second detection circuit
187‧‧‧第二顯示單元 187‧‧‧Second display unit
188,189‧‧‧開關B接點 188,189‧‧‧B contact
190‧‧‧電容儲能電路 190‧‧‧ capacitor energy storage circuit
191‧‧‧直流電源並聯輸出電路 191‧‧‧DC power supply parallel output circuit
192‧‧‧第三偵測電路 192‧‧‧The third detection circuit
193‧‧‧第三顯示單元 193‧‧‧ Third display unit
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TW107139354A TWI693763B (en) | 2018-11-06 | 2018-11-06 | Improvement of dc control circuit breaker tripping system |
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TW202019044A true TW202019044A (en) | 2020-05-16 |
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TWI836739B (en) * | 2022-11-18 | 2024-03-21 | 勁鉞有限公司 | Solar DC feeder disaster prevention system |
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TWI808871B (en) * | 2022-08-15 | 2023-07-11 | 國立臺灣師範大學 | Trip circuit of circuit breaker using power converter and rechargeable battery |
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AU2003219535A1 (en) * | 2003-03-14 | 2004-09-30 | Magnetek S.P.A. | Electronic circuit breaker |
TW200740070A (en) * | 2006-04-03 | 2007-10-16 | Wiz Energy Technology Company | Current-driving electronic breaker device |
CN101877474A (en) * | 2010-06-04 | 2010-11-03 | 中国人民解放军海军海防工程技术管理室 | Intelligent arc-fault circuit interrupter |
EP2506422B1 (en) * | 2011-03-28 | 2019-02-13 | GE Energy Power Conversion Technology Limited | Circuits for dc energy stores |
GB2527534A (en) * | 2014-06-24 | 2015-12-30 | Eaton Ind Netherlands Bv | Selective circuit breaker |
JP6240647B2 (en) * | 2015-11-09 | 2017-11-29 | 龍門技術服務有限公司 | Circuit breaker tripping system |
CN106159879B (en) * | 2016-08-26 | 2018-10-09 | 章则明 | A kind of combined mass circuit breaker system |
TWI613874B (en) * | 2017-02-16 | 2018-02-01 | 雄立國際貿易有限公司 | Isolating type capacitors tripping system |
CN107834503A (en) * | 2017-11-21 | 2018-03-23 | 江苏创能电器有限公司 | A kind of breaker |
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