KR20060118929A - Mutual induction reactor type electric saving device - Google Patents

Mutual induction reactor type electric saving device Download PDF

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Publication number
KR20060118929A
KR20060118929A KR1020050041379A KR20050041379A KR20060118929A KR 20060118929 A KR20060118929 A KR 20060118929A KR 1020050041379 A KR1020050041379 A KR 1020050041379A KR 20050041379 A KR20050041379 A KR 20050041379A KR 20060118929 A KR20060118929 A KR 20060118929A
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South Korea
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voltage
coil
load
current
mutual induction
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KR1020050041379A
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Korean (ko)
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추경희
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추경희
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    • 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
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

An electricity saving apparatus of a simultaneous voltage and current controlled mutual induction reactor type is provided to protect a coil by connecting an input power to a load directly and automatically when the temperature of the coil increases. In a configuration of a load circuit of a mutual induction reactor(4), a middle tap(12) of a primary voltage coil(2) is drawn out. A primary voltage detection control unit(6) detects, compares and controls a primary voltage of a winding start point of the primary voltage coil. A secondary coil voltage detection control unit(7) detects, compares and controls a current coil voltage of a secondary current coil(3). A switch branching unit processes the output of each control unit with an OR gate(21). An input terminal(29) of a load(5) is connected to a contact terminal(27) directly, and the switch branching unit is connected to the secondary current coil and a contact terminal(28) directly. A temperature sensor(200) is installed around the coil. A controller(201) controls the driving of a power saving unit according to the variation of the temperature sensor.

Description

전압과 전류 동시 제어방식 상호유도리액터식 전기절감장치{omitted}Mutual induction reactor type electric power saving device with simultaneous control of voltage and current

도 1은 본 발명에 따른 절전장치의 구성도1 is a configuration diagram of a power saving device according to the present invention

도 2 는 본 발명의 제어방법 설명도로서a는 1차측 전압 검출비교 설명도b는 2차측 전류코일 전압 검출비교 설명도2 is an explanatory diagram of a control method according to the present invention, a is a comparison diagram of a primary voltage detection comparison diagram and FIG.

도 3은 본 발명 제1도의 일실시예에 따른 기능 설명도로서a는 1차측 전압 검출 비교앰프 기능 설명도b는 2차측 전류코일 전압 비교앰프 기능 설명도3 is a functional explanatory diagram according to an embodiment of FIG. 1 of the present invention, where a is a functional explanatory diagram of a primary voltage detection comparison amplifier, and FIG. B is a functional explanatory diagram of a secondary current coil voltage comparison amplifier.

〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 입력전원 2 : 1차측 전압코일 3 : 2차측 전류코일1: Input power supply 2: Primary side voltage coil 3: Secondary side current coil

4 :상호유도 리액터 5 : 부하 6 : 1차측 전압검출제어수단4: Mutual induction reactor 5: Load 6: Primary side voltage detection control means

7 : 2차측 전류코일전압 검출제어수단 12 : 1차측 전압검출단자7: Secondary side current coil voltage detection control means 12: Primary side voltage detection terminal

15, 16 : 정류장치 17 : 히스테리시스 전압신호 발생기15, 16: threshold 17: hysteresis voltage signal generator

18, 19 : 비교앰흐 20 : 타임머 23 : 1차측 기준전압18, 19: Comparative Amch 20: Timer 23: Primary Voltage Reference

24 : 2차측 기준전압 25,26 : 릴레이 V1:1차측 전압24: Secondary reference voltage 25,26: Relay V 1 : Primary voltage

VZ: 전류코일 전압 V2 : 출력전압 I1 : 1차측 전류 I2 : 2차측 전류V Z : Current coil voltage V 2 : Output voltage I 1 : Primary side current I 2 : Secondary side current

LP :제어점 VIIL : 1차전압 제어기준전압L P : Control Point VI IL : Primary Voltage Control Reference Voltage

VZL : 전류코일전압 제어기준전압 200:온도감지장치 201: 제어장치V ZL : Current coil voltage control reference voltage 200: Temperature sensing device 201: Control device

본 발명은 절전 장치에 관한 것으로 특히 전압강하 및 역률개선 효과를 동시에 얻을수 있는 상호유도 리액터를 사용하되 부하측의 수요전류량이나 입력전원의 상태를 판단하여 부하측에 필요한 전력을 항상 안정적으로 공급할수 있는 상호유도 리액터에 온도감지장치를 장착하여 코일의 온도가 상승하면 자동적으로 입력전력를 직접 부하에 연결시켜 코일을 보호 할 수 있는 것을 특징으로 하는 전압과 전류 동시 제어방식 상호유도리액터식 전기절감장치에 관한 것이다The present invention relates to a power saving device. In particular, a mutual induction reactor capable of simultaneously obtaining a voltage drop and a power factor improvement effect is used, but mutual induction can be stably supplied to a load side by judging the amount of demand current or input power on the load side. When the temperature of the coil is increased by attaching a temperature sensing device to the reactor, it relates to a voltage and current simultaneous control type mutual induction reactor type electric saving device, which can protect the coil by automatically connecting the input power directly to the load.

상호유도 리액터의 원리는 자가유도 상호작용을 이용한 리액터로서 부하측에 적정전압을 강하시켜 공급함으로써 절전효과를 얻고, 또한 역률을 개선시켜 절전효과를 얻을 뿐만아니라 부하측에 공급되는 전원은 파형(노이즈포함)을 정형시켜주고 급격한 돌입, 써지전압을 평활시켜주는 기능을 갖고 있다.The principle of the mutual induction reactor is a reactor using self-induction interaction, which provides a power saving effect by dropping and supplying an appropriate voltage to the load side, and also improves power factor to obtain a power saving effect, and the power supplied to the load side is waveform (including noise). It has the function of shaping and smoothing sudden inrush and surge voltage.

그러나 이러한 상호유도 리액터만으로는 입,출력 전압관계를 부하조건이나 입력전압상태에 따라 적절히 대응시킬수 없기 때문에 일정한 부하조건외에는 폭넓은 부하조건과 전원사정에 맞추어 사용하는데 실용적인 문제가 있을뿐아니라 과부하에 따라 코일이 타는 등 절전기의 안전에 많은 문제가 있었다.However, these mutually inductive reactors alone cannot match the input / output voltage relationship according to the load condition or the input voltage condition. There were many problems with the safety of the power saver, such as burning.

즉 모터운전과 같은 부하변동이 심한 경우 정상운전시에는 보통 부하율이 모터 정격의 60∼70％수준이기 때문에 일정 전압을 강하시키고, 역률을 개선시킬 경우 모터의 운전을 정상적으로 유지시키면서 상당한 절전효과를 얻을수 있지만 기동 시에나 갑자기 부하율이 높아졌을 경우 충분한 전력공급을 위해 전압을 상승시켜 주거나 전원전압을 100％공급할 필요가 있다. 또한 입력전원이 일정전압이하로 떨어질 경우에 상호유도 리액터를 통한 부하측 전압이 정상적인 운전에 지장을 초래할 만큼 전압강하가 일어나므로 이 경우에도 전압을 상승시켜주거나 전원전압을 100％공급할 필요가 있다.In other words, in case of heavy load fluctuation such as motor operation, in normal operation, since the load ratio is usually 60 ~ 70% of the motor rating, if a certain voltage drops, and the power factor is improved, considerable power saving effect can be obtained while maintaining motor operation normally. At startup or when the load rate suddenly increases, it is necessary to raise the voltage or supply 100% of the power supply voltage for sufficient power supply. In addition, when the input power falls below a certain voltage, the voltage drop occurs so that the load-side voltage through the mutual induction reactor may interfere with normal operation. Therefore, it is necessary to increase the voltage or supply 100% of the power supply voltage.

이에 본 발명의 목적은 상술한 문제점을 해결함에 있어서 상호유도 리액터의 작동 특성을 이용한 제어장치를 창출하여 상호유도 리액터의 절전특성을 실용화시키고, 상호유도 리액터에 온도감지장치를 장착하여 코일의 온도가 상승하면 자동적으로 입력전력를 직접 부하에 연결시켜 코일을 보호 할 수 있는 관련 제어기술을 제공하기 위한 것이다.Accordingly, an object of the present invention is to solve the above problems by creating a control device using the operating characteristics of the mutual induction reactor to realize the power saving characteristics of the mutual induction reactor, and to equip the mutual induction reactor with a temperature sensing device to increase the temperature of the coil. It is to provide the relevant control technology to protect the coil by automatically connecting the input power directly to the load when it rises.

본 발명의 첨부한 도면에 따라 상세히 설명한다.It will be described in detail according to the accompanying drawings of the present invention.

제 1도에 도시한 상호유도 리액터(4)는 입력전원(1)에 대해 병렬로 1차측 전압코일(2)과 2차측 전류코일(3)이 전자기적으로 결합되어 있고, 2차측 전류코일(3)은 부하(5)회로와 직렬로 연결되어 있다.In the mutual induction reactor 4 shown in FIG. 1, the primary side voltage coil 2 and the secondary side current coil 3 are electromagnetically coupled in parallel with respect to the input power source 1, and the secondary side current coil ( 3) is connected in series with the load 5 circuit.

또한 1차측 전압코일(2)의 권선(n1)은 입력전원(1)의 전압(V1)에 의해 결정되고 2차측 전류코일(3)의 권선(n2)은 임의의 적정전압강하량(VZ)에 따라 결정한다.In addition, the winding n 1 of the primary side voltage coil 2 is determined by the voltage V 1 of the input power source 1, and the winding n 2 of the secondary side current coil 3 has any appropriate voltage drop amount ( V Z ).

이때 출력전압(V2)은 V1-VZ로 결정되며 VZ × I2만큼의 전력량이 상호유도작용 으로 1차측 전원(1)으로 궤환되어 절전이 되므로 역률개선 효과를 제공한다.At this time, the output voltage (V 2 ) is determined by V 1 -V Z and the power amount of V Z × I 2 is fed back to the primary power source 1 by mutual induction, thereby saving power.

그러나 이와같은 상호유도 리액터(4)는 부하(5)의 정상적인 작동전압범위가 200±15％일 경우 187 ∼ 253V 전압 범위가 허용되지만 예를 들어 2차측 전류코일(3)의 전압(VZ)이 15V이고 입력전원(1) 전압이 190V일 경우 부하(5)에 공급되는 전압은 175V밖에 되지 않는다. 이럴 경우 절전효과 보다는 부하가 정상적인 일을 할수 없게 되므로 이런 경우 최소한 입력전원(1)을 직접 부하측에 연결할수 있는 수단이 필요하다.However, such mutually inductive reactor 4 is allowed a voltage range of 187 to 253V when the normal operating voltage range of the load 5 is 200 ± 15%, but for example the voltage of the secondary current coil 3 (V Z ). Is 15V and the voltage of the input power source 1 is 190V, the voltage supplied to the load 5 is only 175V. In this case, the load cannot work normally rather than the power saving effect. In this case, at least a means of directly connecting the input power source 1 to the load side is required.

한편 부하(5)가 급격한 부하변동이나 과부하로 대전류를 필요로 할 때 2차측전류코일(3)에 흐르는 전류도 크게 증가하게되고 이때 2차측 전류코일전압(VZ)이 크게 증가하므로 부하측 출력전압(V2)은 그 만큼 감소하여 부하(5)측 수요전력을 충족시키지 못하게 된다.On the other hand, when the load 5 requires a large current due to a sudden load change or an overload, the current flowing in the secondary side current coil 3 also increases greatly, and at this time, the secondary side current coil voltage V Z increases greatly, thus the load side output voltage. (V 2 ) decreases so much that it cannot meet the demand power of the load 5 side.

이럴경우도 상호유도 리액터(4)의 절전기능 발휘에 대한 역기능이 제공되므로 실용상 문제가 있을 것이다.Even in this case, since the reverse function is provided for the power saving function of the mutual induction reactor 4, there will be a practical problem.

본 발명의 제어구성 개념은 1차측 전압코일(2)에 병렬 연결된 입력전원(1)을 1차측 전압코일(2)의 중간탭(12)을 통해 1차측 전압을 검출비교제어 할수 있는 1차측 전압검출제어수단(6)을 구성시켜 입력전원(1)의 변동을 감시하고, 2차측 전류코일(3)에 흐르는 전류(I2)량을 감시하기 위해 전류코일전압(VZ)을 검출비교제어 할수 있는 2차측전류코일 전압검출제어수단(7)을 구비하여 각 수단(6)(7)의 출력신호에 따라 부하(5)에 입력전원(1)이 직접 공급되게 하거나 상호유도 리액터(4)의 2차측 전류코일(3)과 직렬로 연결시키는 스위치 절환수단의 접점단자(27,28)를 구성시켜서 입력전원(1)과 부하조건의 상황에 따라 적절히 대응할수 있는 기능을 부여한 것이다.The control configuration concept of the present invention is a primary side voltage capable of detecting and controlling the primary side voltage through the intermediate tap 12 of the primary side voltage coil 2 to the input power source 1 connected in parallel to the primary side voltage coil 2. The detection control means 6 is configured to monitor the fluctuation of the input power source 1 and to detect and compare the current coil voltage V Z to monitor the amount of current I 2 flowing in the secondary side current coil 3. A secondary side current coil voltage detection control means (7) capable of supplying the input power (1) directly to the load (5) or mutually inducing reactor (4) in accordance with the output signal of each means (6) (7). The contact terminals 27 and 28 of the switch switching means connected in series with the secondary side current coil 3 are provided with a function capable of appropriately responding to the input power source 1 and the load condition.

먼저 입력전원(1)의 전압이 제2도(a)의 정격전압(10)보다 기준전압(11,VIL)이하로 될 경우 부하회로가 자동으로 입력전원에 직결되도록 하는 제어방법을 제1도의 본 발명 절전장치일 구성도에 따라 설명한다.First, when the voltage of the input power source 1 is lower than the reference voltage (11, V IL ) than the rated voltage 10 of FIG. 2 (a), a control method for automatically causing the load circuit to be directly connected to the input power source is provided. The invention will be described according to the configuration of the power saving device of the present invention.

상호유도 리액터(4)의 1차측 전압코일(2)에 일정전압을 검출키 위한 중간탭(12)을 인출하고 그 인출선과 1차측 전압코일(2) 권선(n1) 시작(.)라인 사이의 전압을 공지의 브릿지 정류장치(15)에서 정류, 평활하고 정류된 직류전압을 비교전압으로 하되 기준전압(23: VIL)에 대한 히스테리시스 동작점을 갖도록 공지의 히스테리시스 회로를 구성시키고 그 출력을 비교증폭기(18)의 부(-)입력 (으)로 인가한다.Draw an intermediate tap 12 for detecting a constant voltage to the primary side voltage coil 2 of the mutual induction reactor 4, and between the lead line and the starting line of the primary side voltage coil 2 winding n 1 . A known hysteresis circuit is configured to have a hysteresis operating point with respect to a reference voltage (23: V IL ) as a comparison voltage, but the rectified, smoothed and rectified DC voltage is compared at a known bridge stop 15. It is applied as negative input of comparative amplifier 18.

그리고 기준전압(23: VIL)을 정(+) 입력(으)로 인가한다.The reference voltage 23 V IL is applied to the positive input.

이와같은 회로구성(15)(17)(18)에 의한 제어특성은 제3도a와 같이 실현된다.Such control characteristics by the circuit configurations 15, 17 and 18 are realized as shown in FIG.

즉, 입력전원(1)의 1차측전압(V1)이 비교기(18)의 정(+)입력에 인가된 기준전압(23: VIL)보다 낮은 전원전압이 정류되어 비교기(18)의 부(-)입력에 인가될 경우 비교기(18)의 출력은 H상태를 출력한다.That is, the power supply voltage of which the primary side voltage V 1 of the input power supply 1 is lower than the reference voltage 23 V IL applied to the positive (+) input of the comparator 18 is rectified, so that the negative voltage of the comparator 18 is rectified. When applied to the negative input, the output of the comparator 18 outputs an H state.

이 출력이 OR게이트의 한 입력에 인가되면 OR게이트 출력은 이 H상태를 출력하고 이때 파워 릴레이(26)는 ON되고, NOT게이트(22)를 거친 출력은 L상태가 되어 파워 릴레이(25)는 OFF된다. 따라서 부하입력라인(29)은 입력전원(1)과 직결될수 있는 릴레이(26)의 접점단자(27)와 연결된다.When this output is applied to one input of the OR gate, the OR gate output outputs this H state. At this time, the power relay 26 is turned ON, and the output passing through the NOT gate 22 is turned to L state, and the power relay 25 is OFF. Therefore, the load input line 29 is connected to the contact terminal 27 of the relay 26 that can be directly connected to the input power source (1).

반대로 기준전압(VIL)이상의 정상적인 전압이 인가될 경우 히스테리시스 입력특성에 저전압 검출제어전압보다 다소 높은 전압에서 비교앰프(18)의 출력이 L상태로 되고, 파워 릴레이(25: TRY)가 ON되고 부하 입력라인(29)은 릴레이(25)의 접점단자(28)로 연결되어 정상적인 절전 운전을 할수 있게 한다.On the contrary, when a normal voltage of more than the reference voltage V IL is applied, the output of the comparison amplifier 18 becomes L at a voltage slightly higher than the low voltage detection control voltage in the hysteresis input characteristic, and the power relay 25 (T RY ) is turned ON. The load input line 29 is connected to the contact terminal 28 of the relay 25 to enable normal power saving operation.

한편 부하측의 전류가 증가했을 때 2차측 전류코일(3)의 전압(VZ)변동에 따른 부하전류 검출제어방법을 설명한다.On the other hand, the load current detection control method according to the voltage V Z variation of the secondary side current coil 3 when the current on the load side increases.

제1도에 도시된 상호유도 리액터(4)의 2차측 전류코일(3)을 부하(5)측과 직렬로 연결되어 있기 때무에 부하(5)측 부하전류가 많이 흐를 경우 2차측 전류코일(3)의 전류(I2)가 증가하고 전류코일전압(VZ)은 E(VZ)=I.R법칙에 따라 전류에 비례하여 증가한다.Since the secondary side current coil 3 of the mutually induced reactor 4 shown in FIG. 1 is connected in series with the load 5 side, the secondary side current coil ( The current (I 2 ) of 3) increases and the current coil voltage (V Z ) increases in proportion to the current according to E (V Z ) = IR law.

이와같은 전류(I2)와 전류코일전압(VZ)의 관계를 제2도 b에 나타내었다.The relationship between the current I 2 and the current coil voltage V Z is shown in FIG.

본 발명은 별도의 전류검출장치를 사용하지 않고 2차측 전류코일(3)에서 전류코일전압(VZ)을 직접 검출하여 일정 한계이상의 기준전압(VZL)이상이 되면 입력전원(1)에 부하(5)회로가 직결되도록 제어장치를 구성시킨다.The present invention directly detects the current coil voltage (V Z ) at the secondary side current coil (3) without using a separate current detecting device, and loads the input power supply (1) when the reference voltage (V ZL ) is above a predetermined limit. (5) The control device is constructed so that the circuit is connected directly.

이와같은 착상에 의해 구성된 본 발명의 부하전류 검출제어방법은 제1도의 2차측 전류코일(3)의 양단(13,14)의 전압을 브릿지 정류장치(16)로 전파정류하고, 그 정류전압을 비교앰프(19)의 부(-)입력에 연결하고 기준전압(24, VIL)을 정(+)입력에 연결하고 비교앰프(19)의 출력을 타임머(20)입력에 연결한다.The load current detection control method of the present invention constituted by such an idea makes full-wave rectification of the voltage at both ends 13 and 14 of the secondary side current coil 3 of FIG. It is connected to the negative (-) input of the comparison amplifier 19, the reference voltage (24, V IL ) is connected to the positive (+) input, and the output of the comparison amplifier 19 is connected to the input of the timer (20).

이 타임머(20)는 입력이 트리거되면 일정시간 출력하고 재트리거가 가능한 타임머를 사용한다.The timer 20 outputs a predetermined time when an input is triggered and uses a timer that can be retriggered.

그러므로 2차측 전류코일전압(VZ)이 정류장치(16)에 의해 전파정류되면 제5도(b)와 같이 출력되고 예를들어 모터 기동시와 같은 부하전류가 증가할 경우 기준전압(VZL)보다 높은 전류코일전압(VZ)이 비교앰프(19)에 인가되어 비교앰프(19)출력이 H상태로 된다.Therefore, when the secondary side current coil voltage V Z is full-wave rectified by the stop value 16, it is output as shown in FIG. 5 (b), and when the load current increases, for example, when the motor is started, the reference voltage V ZL ) than is comparison amplifier (19 is the high current coil voltage (V Z), the comparison amplifier 19) to the output is H state.

정상 운전시는 전류코일전압(VZ)이 낮아져서 기준전압(VZL)보다 낮을 경우 비교앰프(19)출력은 L상태로 된다.In the normal operation, when the current coil voltage V Z is lowered and lower than the reference voltage V ZL , the output of the comparison amplifier 19 is in the L state.

그리고 비교앰프(19)출력신호에 트리거된 타임머(20)는 정해진 일정시간 H상태를 출력하고 제4도 b에 나타낸 바와같이 일정시간 이내에 연속적인 신호가 입력되면 연속H상태를 유지한다.The timer 20 triggered by the output signal of the comparison amplifier 19 outputs the predetermined H state for a predetermined time, and maintains the continuous H state when a continuous signal is input within a predetermined time as shown in FIG.

이와같은 타임머(20)의 출력을 OR게이트(21)의 다른 입력에 연결하고, 그 이후 구성은 입력전원 검출제어회로 설명과 같다.This output of the timer 20 is connected to the other input of the OR gate 21, and the configuration thereafter is as described in the input power detection control circuit.

따라서 타임머(20)의 출력이 H일 경우, 즉 모터기동과 같은 많은 전류가 흐르게 될 경우 릴레이(26: TRY)가 ON되고 부하입력라인(29)은 릴레이(26)의 접점단자(27)에 연결되므로 입력전원(1)과 직접 연결된다.Therefore, when the output of the timer 20 is H, that is, when a large amount of current flows, such as starting a motor, the relay 26 (T RY ) is turned on and the load input line 29 is connected to the contact terminal 27 of the relay 26. ) Is directly connected to the input power source (1).

그러므로 부하측에 충분한 전력을 공급할수 있게되고 적정전류이하로 부하 전류가 떨어지게 되면 릴레이(25: TRY)가 ON되고 부하입력라인(29)은 릴레이(25)의 접점단자(28)에 연결되므로 절전 운전을 할수 있는 것이다.Therefore, when enough power can be supplied to the load side and the load current falls below a proper current, the relay 25 (T RY ) is turned on and the load input line 29 is connected to the contact terminal 28 of the relay 25 to save power. You can drive.

한편, 릴레이(25)(26)는 파워반도체스위칭소자를 사용할수도 있다.On the other hand, the relays 25 and 26 may use power semiconductor switching elements.

또한 과부하에 의거 코일의 온도가 상승 코일이 타는 것을 방지하기위하여 코일옆에 온도감지장치(200)를 장착하여 코일의 온도를 감지하여 일정온도이상일 경우 제어장치(201)에 전달하여 부하입력라인(29)을 릴레이(25)의 접점단자(28)에 연결하여 절전기 운전을 정지하여 입력전원(1)이 바로 부하에 연결하도록하여 절전기의 코일을 보호하여 안전성을 확보할 수 있다.In addition, in order to prevent the temperature of the coil from rising due to overload, a coil is mounted on the side of the coil to detect the temperature of the coil, and when the temperature is higher than a predetermined temperature, the coil is transmitted to the control device 201 and the load input line ( 29) can be connected to the contact terminal 28 of the relay 25 to stop the power saver operation so that the input power source 1 is directly connected to the load to protect the coil of the power saver to ensure safety.

이와같이 구성된 본 발명은 상호유도 리액터의 절전특성을 실용화 할수 있게 하고 입력전원변동과 부하변동에 따른 전력공급을 원할히 함으로써 부하측의 정상 운전 또는 정상작동에 지장을 전혀 초래하지 않을뿐아니라 코일의 온도가 일정온도이상일 경우 절전기 운전을 정지하여 입력전원이 바로 부하에 연결하도록하여 절전기의 코일을 보호하여 안전성을 확보할 수 있는 절전장치를 제공할수 있는 것이다.The present invention configured as described above makes it possible to realize the power saving characteristics of the mutual induction reactor and to supply the power according to the input power variation and the load variation, thereby not causing any trouble in the normal operation or normal operation of the load side, and the coil temperature is constant. When the temperature is over, the operation of the power saver is stopped and the input power is directly connected to the load, thereby protecting the coil of the power saver and providing a power saving device that can secure safety.

Claims (1)

상호유도 리액터(4)의 부하회로 구성에 있어서, 1차측 전압코일(2)의 중간탭(12)을 인출하고, 1차측 전압코일(2)의 권선시작점(.)사이의 1차측 전압을 검출비교제어하는 1차측 전압검출제어수단(6)을 구비하고 2차측 전류코일(3)의 전류코일 전압(VZ)을 검출비교제어하는 2차측 전류코일전압검출제어수단(7)을 구비하고 각 제어장치의 출력을 OR게이트(21)로 처리하고 OR게이트(21)출력으로 부하(5) 입력단자(29)가 입력전원(1)에 접점단자(27)로 직접연결되거나 2차측 전류코일(3)과 접점단자(28)로 직렬연결될수 있는 스위치 절환 수단을 구비하고 코일근접에 온도감지센서(200)를 설치하고 온도센서의 변화에 따라 절전기의 운전을 제어할 수 있는 제어기(201)를 구비하는 것을 특징으로 하는 전압과 전류 동시 제어방식 상호유도리액터식 전기절감장치.In the load circuit configuration of the mutual induction reactor 4, the middle tap 12 of the primary side voltage coil 2 is taken out and the primary side voltage between the winding starting points (.) Of the primary side voltage coil 2 is detected. And a secondary side current coil voltage detection control means (7) having primary voltage detection control means (6) for comparative control and detecting and comparing the current coil voltage (V Z ) of the secondary side current coil (3). The output of the control device is processed by the OR gate 21, and the OR gate 21 outputs the load 5 input terminal 29 directly connected to the input power source 1 as the contact terminal 27 or the secondary side current coil ( 3) and a switch switching means that can be connected in series with the contact terminal 28 and the controller 201 to install the temperature sensor 200 in close proximity to the coil and control the operation of the power saving device according to the change of the temperature sensor Mutual induction reactor-type electric reduction device, characterized in that the simultaneous control of voltage and current.
KR1020050041379A 2005-05-18 2005-05-18 Mutual induction reactor type electric saving device KR20060118929A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798819B1 (en) * 2006-05-22 2008-01-28 유기현 A power supply abnormality detection method and the device in power control system
KR20160144013A (en) * 2015-06-05 2016-12-15 손희원 Control Method and Device for controlling Inverter and Power Converter for Power Saving

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798819B1 (en) * 2006-05-22 2008-01-28 유기현 A power supply abnormality detection method and the device in power control system
KR20160144013A (en) * 2015-06-05 2016-12-15 손희원 Control Method and Device for controlling Inverter and Power Converter for Power Saving

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