KR20080113809A - An electric power system had double circuit breaker - Google Patents

An electric power system had double circuit breaker Download PDF

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Publication number
KR20080113809A
KR20080113809A KR1020070062729A KR20070062729A KR20080113809A KR 20080113809 A KR20080113809 A KR 20080113809A KR 1020070062729 A KR1020070062729 A KR 1020070062729A KR 20070062729 A KR20070062729 A KR 20070062729A KR 20080113809 A KR20080113809 A KR 20080113809A
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South Korea
Prior art keywords
circuit breaker
power
transformer
emergency
distribution system
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KR1020070062729A
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Korean (ko)
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KR100891162B1 (en
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유기현
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유기현
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
    • H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/042—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/052—Controlling, signalling or testing correct functioning of a switch

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A power distribution system comprising a dual supply voltage air circuit breaker is presented to sense short-circuit of a commercial power supply and stability of power supply, by comprising a voltage transformer at each line of the commercial power supply and an emergency power supply and comprising a current transformer at a load line. A power distribution system comprising a dual supply voltage air circuit breaker comprises voltage transformers(PT310, 320), a current transformer(CT, 400) and a circuit breaker protection unit(200). The voltage transformer senses an input voltage. A current transformer senses a load current. The circuit breaker protection unit controls a circuit breaker controller(110) through the voltage transformer and the current transformer. The circuit breaker controller controls the operation of the dual voltage air circuit breaker through an input signal.

Description

양전원 기중차단기가 구비된 배전시스템{An electric power system had Double Circuit Breaker}Power distribution system with double power breaker {An electric power system had Double Circuit Breaker}

도 1 은 본 발명에 따른 일 실시 예를 보인 주요 구성 예시도.1 is an exemplary view showing a main configuration showing an embodiment according to the present invention.

도 2 는 본 발명에 따른 일 실시 예로 차단기 보호기의 주요 구성도.2 is a main configuration of a circuit breaker protector according to an embodiment of the present invention.

도 3 은 본 발명에 따른 다른 실시 예로 차단 스위치를 구비한 것으로 보인 주요 구성도.Figure 3 is a main configuration shown to be provided with a disconnect switch in another embodiment according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

11 : 상용전원 12 : 비상전원11: commercial power 12: emergency power

21 : 부하선로21: load line

110 : 차단기 제어부110: breaker control unit

120 : 양전원 기중차단기120: positive power breaker

200 : 차단기 보호기200: breaker protector

211 : 상용전원 감지스위치단 212 : 비상전원 감지스위치단211: commercial power detection switch stage 212: emergency power detection switch stage

310 : 상용 계기용 변압기 320 : 비상 계기용 변압기310: commercial instrument transformer 320: emergency instrument transformer

400 : 계기용 변류기400: Current transformer for the instrument

500 : 차단 스위치500: disconnect switch

본 발명은 양전원 기중차단기로 구성된 배전시스템에 관한 것으로, 더욱 상세하게는 양전원 기중차단기로 구성되어서 상용전원의 단전시 비상전원을 자동으로 공급하는 배전시스템에 있어 입력되는 상용전원과 비상전원을 감시할 수 있게 계기용 변압기를 구비하고 양전원 기중차단기를 통하여 공급되는 부하전류를 감지할 수 있게 계기용 변류기를 구비하여 과전류보호기가 상용전원과 비상전원의 입력상태와 입력 전원에 따른 부하전류를 감지하여서 과부하에 대하여 전원 제어를 할 수 있도록 하는 양전원 기중차단기가 구비된 배전시스템에 관한 것이다.The present invention relates to a power distribution system consisting of a positive power circuit breaker, and more particularly, to a commercial power and emergency power input in the power distribution system consisting of a positive power circuit breaker to automatically supply emergency power when the commercial power is interrupted. It is equipped with an instrument transformer so that it can sense the load current supplied through the double circuit breaker, and the overcurrent protector detects the load current according to the input state and input power of commercial power and emergency power, and overload It relates to a power distribution system having a positive power circuit breaker to enable power control for the.

일반적으로, 대용량의 전원을 공급받아 사용하는 건물이나 공장 등의 배전시스템은 공급되는 상용전원 또는 상용전원의 이상시 대체하는 비상전원을 선택적으로 부하 측에 접속하기 위해 기중차단기(Air Circuit Breaker) 2 대 또는 상기 기중차단기의 동작을 제어하는 차단기제어기(Auto Transfer Breaker Controller)로 구성되어 있는 것이다.In general, a power distribution system such as a building or a factory that is supplied with a large amount of power supply uses an air circuit breaker to selectively connect a commercial power supply or an emergency power that is replaced in the event of an abnormal supply to the load side. Or a breaker controller (Auto Transfer Breaker Controller) for controlling the operation of the air circuit breaker.

한편, 종래 기중차단기는 상용전원용과 비상전원용이 별도 구비되어 사용되었으나, 그 동작이 개별적으로 이루어져 신속하고 원활한 전력공급을 하지 못하는 문제가 있고, 또한 차단기를 상용전원용과 비상전원용으로 각각 구비해야 하기 때문에 비용이 상승되는 등의 문제점이 있어 상기 두 개의 기중차단기를 하나의 기중 단기로 구성한 양전원 기중차단기(Duoble Curcuit Breaker)를 적용하여 실시하고 있다.Meanwhile, the conventional air circuit breaker was used separately for the commercial power source and the emergency power source. However, the operation of the air circuit breaker does not provide fast and smooth power supply because the operation is performed separately, and the breaker must be provided for the commercial power source and the emergency power source, respectively. Since there is a problem such as an increase in cost, a double-curcuit breaker having two short-circuit breakers in one short-term is applied.

이러한 배전시스템은 상용전원의 상태에 따라 양전원 기중차단기를 동작시켜 비상전원을 공급할 수 있도록 만 구성되어 있어 입력 전원에 따른 부하의 제어가 이루어지지 않아 비상전원 상태에서 과부하로 인한 비상전원공급부의 손상이 유발되는 등의 문제점이 있었다.This power distribution system is configured only to supply emergency power by operating both power breakers according to the state of commercial power, so the load control is not controlled according to the input power. There was a problem such as caused.

또한, 상용전원과 비상전원의 입력상태 감지가 명확하게 이루어지지 않아 상용전원이 불안정한 공급 즉, 결상, 저전압, 과전압이 이루어질 경우 이에 따른 적절한 전원 절환이 이루어지지 않아 부하의 손상을 유발하는 등의 문제점이 있었다.In addition, when the input state of the commercial power supply and emergency power is not clearly detected, when the commercial power is unstable, that is, phase loss, overvoltage, or overvoltage, proper power switching is not performed accordingly, causing damage to the load. There was this.

이에, 본 발명은 상술한 바와 같이 양전원 기중차단기로 구성되는 배전시스템에 있어서, 입력 전원의 종류에 따른 부하전류의 감시제어가 불가능한 문제점과, 상용전원의 불안정성에 대한 적절한 비상전원으로의 전환이 이루어지지 않는 문제점을 해결할 수 있도록 한 것이다.Accordingly, the present invention, in the power distribution system consisting of a double-power air circuit breaker as described above, the problem that it is impossible to monitor and control the load current according to the type of input power, and switching to an appropriate emergency power source for the instability of the commercial power source is made The problem is not solved.

즉, 본 발명은 양전원 기중차단기로 구성되는 배전시스템에 있어서 삼상의 구성된 상용전원과 비상전원의 각 선로에 계기용 변압기를 구비하고, 양전원 기중차단기를 통하여 입력 전원과 연결되는 부하선로를 통한 부하전류를 감지하는 계기용 변류기를 구비하며, 상기 계기용 변압기와 계기용 변류기로부터 신호를 입력받아 양전원 기중차단기를 제어하는 차단기제어기에 동작신호를 입력하는 과전류 제 어기를 구비하여 구성한 것이다.That is, the present invention has a load transformer through a load line connected to the input power through the two-phase air circuit breaker in the power distribution system consisting of a two-phase air circuit breaker is provided with a meter transformer on each of the three-phase commercial power and emergency power line It is provided with an instrument current transformer for detecting the overcurrent controller for inputting an operation signal to a circuit breaker controller for receiving a signal from the instrument transformer and the instrument current transformer for controlling the two-phase air circuit breaker.

따라서, 본 발명은 상용전원과 비상전원의 각 선로에 계기용 변압기를 구비하고 부하선로에 계기용 변류기를 구비함으로써 상용전원의 단전과 전원의 안정성을 감지하여서 적절한 전원 전환을 통하여 부하로의 안정적인 전원 공급이 이루어질 수 있는 것이며, 부하전류의 감시를 통하여 입력 전원에 따른 부하측의 전원을 제어할 수 있는 것이다.Therefore, the present invention is provided with a transformer transformer for each line of the commercial power supply and emergency power, and a current transformer for the instrument in the load line to detect the power supply disconnection and the stability of the power supply and stable power supply to the load through the appropriate power switch Supply can be made, it is possible to control the power of the load side according to the input power through monitoring the load current.

이하, 본 발명에 따른 양전원 기중차단기가 구비된 배전시스템의 바람직한 실시예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a power distribution system equipped with a positive power circuit breaker according to the present invention will be described.

본 발명은 비상전원이 구비된 배전시스템의 운영에 있어서 상용전원과 비상전원의 공급상태를 감지하여 적절한 전원의 절체가 이루어지도록 하며 입력 전원에 따른 부하전류를 감시제어할 수 있도록 한 것이다.The present invention is to enable the switching of the appropriate power by monitoring the supply state of the commercial power and emergency power in the operation of the power distribution system equipped with emergency power and to monitor and control the load current according to the input power.

본 발명은 도 1 에 도시된 바와 같이 양전원 기중차단기(DCB; Double Circuit Breaker)가 구비된 배전시스템에 관한 것이다.The present invention relates to a power distribution system having a double circuit breaker (DCB) as shown in FIG.

상기 배전시스템은, 입력 전원을 감지하는 계기용 변압기(PT; Potential Transformer)와 부하전류를 감지하는 계기용 변류기(CT; Current Transformer)를 구비하고, 상기 계기용 변압기와 계기용 변류기를 통하여 입력되는 신호를 통하여 양전원 기중차단기의 동작을 제어하는 차단기제어기(ATBC; Auto Transfer Breaker Controller)를 과전류, 과전압, 부족전압, 지전류에 따라 제어하는 차단기 보호 기(OCR; Over Current Relay)를 구비하여서 된다.The power distribution system includes an instrument transformer (PT) for sensing input power and a current transformer (CT) for detecting a load current, and is input through the instrument transformer and the instrument current transformer. An ATCR (Auto Transfer Breaker Controller) for controlling the operation of a positive voltage circuit breaker through a signal may be provided with an over current relay (OCR) for controlling the over current, over voltage, under voltage, and ground current.

한편, 본 발명에 따른 배전시스템은 도 1 과 도 2 에 도시된 바와 같이 상용전원과 비상전의 부하선로의 접속을 제어하는 양전원 기중차단기(120)와, 상기 양전원 기중차단기(120)의 동작을 제어하는 차단기 제어부(110)와, 입력되는 상용전원(11)과 비상전원(12)의 전압변동을 감지하는 계기용 변압기(310,320)와, 부하선로(21)를 통한 전류의 흐름을 감지하는 계기용 변류기(400)와, 상기 계기용 변압기(310,320)와 계기용 변류기(400)를 통하여 입력되는 신호에 따라 차단기 제어부(110)에 동작신호를 입력하는 차단기 보호기(200)로 구성되는 것이다.On the other hand, the power distribution system according to the present invention, as shown in Figures 1 and 2 control the operation of the positive power supply breaker 120 and the positive power supply breaker 120 for controlling the connection of the load line of the commercial power supply and emergency The breaker control unit 110, the instrument transformer (310,320) for detecting the voltage change of the commercial power source 11 and the emergency power input 12, and the instrument for detecting the flow of current through the load line 21 The current transformer 400, and the breaker protector 200 for inputting an operation signal to the breaker control unit 110 according to the signal input through the instrument transformer (310,320) and the instrument current transformer (400).

여기서, 상기 양전원 기중차단기(120)는 삼상으로 이루어진 상용전원(11)과 비상전원(12)을 입력받아 삼상의 부하선로(21)로의 전원 공급을 절체하며 상용전원(11)과 비상전원(12) 모두의 공급을 차단할 수 있게 구성되어 동작되는 것이다.Here, the two-phase air circuit breaker 120 receives the commercial power 11 and the emergency power 12 composed of three phases, and transfers power to the three-phase load line 21 and switches the commercial power 11 and the emergency power 12. ) It is configured and operated to cut off the supply of all.

그리고, 상기 차단기 제어부(110)는 차단기 보호기(200)로부터 입력되는 신호에 따라 상기 양전원 기중차단기(120)를 제어하여 비상전원이 공급되게 하거나, 상용전원(11)이 정상 회복시 상용전원이 공급되게 하고, 필요에 따라 상용전원(11)과 비상전원(12)이 모두 차단되게 하는 것이다.The circuit breaker controller 110 controls the positive power circuit breaker 120 according to a signal input from the circuit breaker protector 200 so that emergency power is supplied or commercial power is supplied when the commercial power 11 recovers normally. If necessary, both the commercial power source 11 and the emergency power source 12 is to be cut off.

또한, 상기 계기용 변압기(310,320)는 상용전원(11)의 선로에 구비된 세 개의 사용 계기용 변압기(310)와 비상전원(12)의 선로에 구비된 세 개의 비상 계기용 변압기(320)로 구성되는 것으로서, 상기 계기용 변압기(310,320)는 입력되는 전압의 변화를 전압강하를 통하여 차단기 보호기(200)로 입력하게 구성된 것이다.In addition, the instrument transformer (310,320) is three emergency instrument transformer (320) provided on the line of the three-use instrument transformer 310 and the emergency power source 12 provided on the line of the commercial power source (11). As configured, the instrument transformer 310, 320 is configured to input the change in the input voltage to the circuit breaker protector 200 through the voltage drop.

또한, 상기 계기용 변류기(400)는 삼상으로 구성되는 각 부하선로(21)에 구 비되어서 부하선로를 통하여 흐르는 전류량을 차단기 보호기(200)로 입력하게 구성된 것이다.In addition, the current transformer 400 for the instrument is configured to input the amount of current flowing through the load line to the circuit breaker protector 200 is provided in each load line 21 composed of three phases.

또한, 상기 차단기 보호기는 6개의 계기용 변압기(310,320)를 통하여 입력되는 전압신호에 따라 상용전원(11)과 비상전원(12)의 입력 전압의 변화를 감지하여 입력되는 전원 즉 상용전원(11)의 전압이 불안정하게 공급될 경우 이를 감지하여서 차단기 제어부(110)로 절체신호를 입력하여 비상전원(12)으로 절체 동작되게 하는 것이다.In addition, the breaker protector detects a change in the input voltage of the commercial power source 11 and the emergency power source 12 according to the voltage signals inputted through the six instrument transformers 310 and 320, that is, the commercial power source 11. When the voltage of the unstable supply is detected by inputting a transfer signal to the breaker control unit 110 to switch to the emergency power source 12.

또한, 상기 차단기 보호기(200)는 양전원 기중차단기(120)와 접속된 상용전원 감지스위치단(211)과 비상전원 감지스위치단(212)을 통하여 부하선로(21)로 공급되는 전원의 종류를 감지하고, 상기 입력 전원의 감지에 따라 상용전원(11)의 부하전류보다 적은 값으로 설정된 비상전원(12)의 부하전류 설정 값에 따라 계기용 변류기(400)를 통하여 입력되는 부하선로의 전류 값을 감지하여 비상전원(12)의 손상을 방지할 수 있게 차단기 제어부(110)에 비상전원 차단신호를 입력하여 양전원 기중차단기(120)가 동작되게 하는 것이다.In addition, the circuit breaker protector 200 detects the type of power supplied to the load line 21 through the commercial power detection switch stage 211 and the emergency power detection switch stage 212 connected to the positive power air circuit breaker 120. The current value of the load line input through the current transformer 400 for the instrument according to the load current setting value of the emergency power supply 12 set to a value less than the load current of the commercial power source 11 according to the detection of the input power. In order to detect and prevent damage to the emergency power supply 12, the emergency power supply cutoff signal is input to the circuit breaker control unit 110 to operate the two-phase air circuit breaker 120.

또한, 본 발명의 실시에 있어서, 도 3 에 도시된 바와 같이 사용자가 부하선로로의 전원 공급을 강제 차단시킬 수 있게 제어신호를 입력할 수 있게 양전원 기중차단기(120)의 릴레이를 동작시키는 차단 스위치(500)를 구비하여 실시할 수 있는 것이다.In addition, in the practice of the present invention, as shown in Fig. 3, the cutoff switch for operating the relay of the two-phase air circuit breaker 120 so that the user can input the control signal to forcibly cut off the power supply to the load line It can be implemented by providing 500.

상기와 같이 구성되는 본 발명에 따른 양전원 기중차단기가 구비된 배전시스템의 동작과정을 설명하면 다음과 같다.Referring to the operation of the power distribution system provided with a positive power circuit breaker according to the present invention configured as described above are as follows.

도시된 바와같이 상용전원(11)이 단전되게 되면 차단기 보호기(200)가 사용 계기용 변압기(310)를 통하여 이를 감지하여 차단기 제어부(110)에 절체신호를 입력하게 되고 상기 차단제어기는 양전원 기중차단기(120)를 동작시켜서 비상전원(12)이 부하선로(21)로 공급될 수 있도록 하게 된다.As shown, when the commercial power supply 11 is disconnected, the circuit breaker protector 200 detects it through the transformer 310 for use instrument and inputs a switching signal to the circuit breaker controller 110. By operating the 120, the emergency power 12 can be supplied to the load line (21).

이상에서와 같은 비상전원(12)을 사용하는 과정에 있어, 차단기 보호기(200)는 부하선로(21)에 구비된 계기용 변류기(400)를 통하여 부하전류가 상용전원(11)의 사용시의 사용자의 설정에 따라 통상 약 80% 이상을 초과하는지를 감시하여 약 80%를 초과할 경우 차단기 제어부(110)에 제어신호를 입력하여 양전원 기중차단기(120)를 동작시켜 비상전원공급부와 부하선로(21)의 손상이 방지되게 된다.In the process of using the emergency power source 12 as described above, the circuit breaker protector 200 is a user of the load current through the current transformer 400 for the instrument provided in the load line 21 at the time of use of the commercial power source 11 In accordance with the setting of the general monitoring about 80% or more and exceeds about 80% by inputting a control signal to the circuit breaker control unit 110 to operate the two-phase air circuit breaker 120 to operate the emergency power supply unit and the load line 21 The damage of the can be prevented.

그리고, 차단기 보호기(200)는 상용전원(11) 또는 비상전원(12)을 사용함에 있어서 각각 구비된 사용 계기용 변압기(310)와 비상 계기용 변압기(320)를 통하여 입력되는 전압의 변동에 따라 결상, 저전압, 과전압 등과 같은 전원 품질에 문제가 발생시 이에 따른 제어신호 즉, 상용전원(11) 사용시는 비상전원(12)으로 절체를 실시하고 비상전원(12) 사용시는 부하선로(21)의 전원 공급을 차단하는 제어신호를 차단기 제어부(110)로 입력하여서 입력된 신호에 따라 차단기 제어부(110)가 양전원 기중차단기(120)를 제어하여 전원의 절체 및 차단이 이루어지도록 하게 된다.And, the circuit breaker protector 200 in accordance with the change in the voltage input through the use instrument transformer 310 and the emergency instrument transformer 320, respectively provided in using the commercial power source 11 or emergency power source 12. When there is a problem with the power quality such as phase loss, low voltage, overvoltage, etc., the control signal according to this, that is, when the commercial power source 11 is used, transfers to the emergency power source 12, and when the emergency power source 12 is used, the power supply of the load line 21. The control signal for interrupting the supply is input to the breaker controller 110 so that the circuit breaker controller 110 controls the two-phase air circuit breaker 120 according to the input signal so that the power is switched and cut off.

또한, 본 발명의 다른 실시 예와 같이 차단 스위치(500)를 구비하여 실시함으로써 비상상황 발생시 사용자가 양전원 기중차단기(120)를 긴급 작동시켜 전원을 차단하면 된다.In addition, by implementing the cut-off switch 500 as in another embodiment of the present invention, when the emergency occurs, the user may cut off the power by emergency operation of the two-phase air circuit breaker 120.

따라서, 본 발명은 상용전원과 비상전원의 각 선로에 계기용 변압기를 구비하고 부하선로에 계기용 변류기를 구비함으로써 상용전원의 단전과 전원의 안정성을 감지하여서 적절한 전원 전환을 통하여 부하로의 안정적인 전원 공급이 이루어질 수 있는 것이며 부하전류의 감시를 통하여 입력 전원에 따른 부하측의 전원을 제어할 수 있는 효과가 있다.Therefore, the present invention is provided with a transformer transformer for each line of the commercial power supply and emergency power, and a current transformer for the instrument in the load line to detect the power supply disconnection and the stability of the power supply and stable power supply to the load through the appropriate power switch Supply can be made, and there is an effect that can control the power of the load side according to the input power through monitoring the load current.

Claims (4)

양전원 기중차단기(DCB)가 구비된 배전시스템에 있어서;A power distribution system provided with a positive power circuit breaker (DCB); 입력 전원을 감지하는 계기용 변압기(PT)와 부하전류를 감지하는 계기용 변류기(CT)를 구비하고, 상기 계기용 변압기와 계기용 변류기를 통하여 입력되는 신호를 통하여 양전원 기중차단기의 동작을 제어하는 차단기제어기를 제어하는 차단기 보호기를 구비하여서 됨을 특징으로 하는 양전원 기중차단기가 구비된 배전시스템.Instrument transformer (PT) for sensing the input power and instrument current transformer (CT) for sensing the load current, and controls the operation of the two-phase air circuit breaker through the signal input through the instrument transformer and instrument current transformer A power distribution system with a positive power circuit breaker, characterized in that it comprises a circuit breaker protector for controlling the circuit breaker controller. 제 1 항에 있어서;The method of claim 1; 상기 계기용 변압기는 상용전원(11)의 선로에 구비된 세 개의 사용 계기용 변압기(310)와 비상전원(12)의 선로에 구비된 세 개의 비상 계기용 변압기(320)로 구성함을 특징으로 하는 양전원 기중차단기가 구비된 배전시스템.The instrument transformer is characterized by consisting of the three used instrument transformer 310 on the line of the commercial power source 11 and the three emergency instrument transformer 320 provided on the line of the emergency power supply 12. Power distribution system equipped with a positive power circuit breaker. 제 1 항에 있어서;The method of claim 1; 상기 차단기 보호기는 6 개의 계기용 변압기(310,320)를 통하여 입력되는 전압신호에 따라 상용전원(11)과 비상전원(12)의 입력 전압의 변화를 감지하여 입력되는 전원 즉 상용전원(11)의 전압이 불안정하게 공급될 경우 이를 감지하여서 차 단기 제어부(110)로 절체신호를 입력하여 비상전원(12)으로 절체 동작되게 구성하고,The circuit breaker protector detects a change in the input voltage of the commercial power source 11 and the emergency power source 12 according to voltage signals input through the six instrument transformers 310 and 320, that is, the voltage of the commercial power source 11. When the supply is unstable, it detects this, inputs a transfer signal to the breaker control unit 110, and configures the transfer operation to the emergency power source 12. 상기 차단기 보호기(200)는 부하선로(21)로 공급되는 전원의 종류를 감지할 수 있게 양전원 기중차단기(120)와 접속된 상용전원 감지스위치단(211)과 비상전원 감지스위치단(212)을 구비한 것을 특징으로 하는 양전원 기중차단기가 구비된 배전시스템.The circuit breaker protector 200 uses a commercial power detection switch stage 211 and an emergency power detection switch stage 212 connected to the positive power circuit breaker 120 to detect the type of power supplied to the load line 21. Power distribution system provided with a positive power breaker. 제 1 항 내지 제 3 항 중 어느 하나의 항에 있어서;The method of any one of claims 1 to 3; 사용자가 부하선로로의 전원 공급을 강제 차단시킬 수 있게 제어신호를 입력할 수 있게 한 차단 스위치(500)를 구비한 것을 특징으로 하는 양전원 기중차단기가 구비된 배전시스템.A power distribution system with a double-power air circuit breaker, characterized in that it comprises a cut-off switch 500 for allowing a user to forcibly cut off the power supply to the load line.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105322510A (en) * 2014-06-20 2016-02-10 中国矿业大学(北京) Quick power cut device based on solid state circuit breaker
CN105977928A (en) * 2016-07-20 2016-09-28 苏州市龙源电力科技股份有限公司 Electric leakage preventing low-voltage power distribution cabinet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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JPH08182220A (en) * 1994-12-21 1996-07-12 Toshiba Eng & Constr Co Ltd Overcurrent protective relay
KR100365653B1 (en) * 2000-05-09 2002-12-26 오성기전주식회사 Low voltage air circuit breaker
KR100500891B1 (en) * 2003-03-24 2005-07-18 신창에스씨아이 주식회사 Switchboard for supplying normal and emergency power of separate household
KR200332957Y1 (en) * 2003-08-06 2003-11-14 서한컨설탄트(주) Automatic power transfer device for Load

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105322510A (en) * 2014-06-20 2016-02-10 中国矿业大学(北京) Quick power cut device based on solid state circuit breaker
CN105322510B (en) * 2014-06-20 2018-02-13 中国矿业大学(北京) A kind of rapid power-down device based on solid circuit breaker
CN105977928A (en) * 2016-07-20 2016-09-28 苏州市龙源电力科技股份有限公司 Electric leakage preventing low-voltage power distribution cabinet

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