KR101482670B1 - Interface apparatus for testing a switch and an operating device of the switch - Google Patents

Abstract

Disclosed are an interface device for testing a switch and a switch operation device. According to an embodiment of the present invention, the interface device, which is provided to test either or both a switch or/and a switch operation device that are used for a distribution line, comprises: a connection terminal including multiple pins which are connected to the switch or the switch operation device; and cell structure selection units to input/output one of a three-phase current signal, a common current signal, a six-phase voltage signal, a common voltage signal, a first switch state contact point signal, a second switch state contact point signal, a first switch drive detection signal, and a second switch drive detection signal, wherein the cell structure selection units are arranged as many as the number of the pins and are connected to the corresponding pins one on one. According to an embodiment of the present invention, the integrated connected single device is able to test the switch and the switch operation device which are used for the distribution line and have different types of specifications by each manufacturer and each manufacturing year, thereby improving efficiency of a failure prevention check and remarkably reducing the time and costs required to check the switch and the switch operation device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an interface device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interface device for testing a switchgear and a switchgear operating device, and more particularly to an interface device capable of integrally testing a switchgear switchgear and a switchgear device which are not standardized.

Distribution automation system is a system that can improve the reliability of electric power supply to general consumers by controlling the switches on distribution lines remotely by using information and communication technology. Such a distribution automation system is composed of a switchgear, a switchgear device, a main device that can be remotely monitored or controlled from the operation room, and a communication device that performs communication with the switchgear device installed in the distribution line.

Switches and switchgear control devices on distribution automation lines should be kept operable through preventive checking. The switchgear and switchgear control devices installed in 22.9kV processing / underground distribution line are classified into pin arrangement , The connection terminal, the control method of the opening and closing drive part, the size of the input voltage, and the like are not standardized. Accordingly, in order to check various switchgear and switchgear control apparatuses, different test apparatuses are required according to the manufacturer and the year of manufacture, so that it takes a lot of time and cost to check the switchgear and switchgear control apparatuses.

The problem to be solved by the present invention is to improve the efficiency of the failure prevention inspection by integrally testing a switchgear for a distribution line and a switchgear operating device having different specifications by manufacturer and year of manufacture, And it is an object of the present invention to provide an interface device capable of greatly reducing the time and cost required for checking the switchgear and the switchgear control device.

An interface device according to an embodiment of the present invention is an apparatus for testing at least one of a switch or an operating device used in a distribution line, the device comprising a plurality of pins connected to the switch or the switch operating device A connection terminal; And one of the three-phase current signal, the common current signal, the six-phase voltage signal, the common voltage signal, the first breaker state contact signal, the second breaker state contact signal, the first breaker drive detection signal, And a plurality of cell structure selection units for inputting and outputting the cell structure selection units. The plurality of cell structure selection units may be connected to the pins in a one-to-one correspondence relationship.

According to the embodiment of the present invention, it is possible to test a switchgear for a distribution line and a switchgear operating device having different specifications by manufacturer and year of manufacture, which are not standardized, By increasing the efficiency of preventive inspections, it is possible to greatly reduce the time and expense of checking switchgear and switch operating devices.

FIG. 1 is a block diagram showing the overall configuration of an interface device for testing a switch and an operating device according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is a circuit diagram of a cell structure selection unit that configures an interface device for testing a switch and an operating device according to an embodiment of the present invention. Referring to FIG.
3 is a circuit diagram of a state-contact unit and a state-contact common connection unit that constitute an interface device for testing an operating device of an opening and closing device according to an embodiment of the present invention.
FIG. 4 is a circuit diagram of a switch sensing signal unit constituting an interface device for testing a switch and an operating device according to an embodiment of the present invention. Referring to FIG.
FIG. 5 is a circuit diagram of a connection allowing unit that constitutes an interface device for testing an operating device of an opening and closing device according to an embodiment of the present invention. FIG.
6 is a flowchart illustrating a method for testing an operating device of an opening and closing device according to an embodiment of the present invention.

The present invention may have various embodiments, and particular embodiments are illustrated and described in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all variations that fall within the spirit and scope of the invention.

Unless otherwise defined, terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Also, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the contextual meaning of the related art, and should not be construed as an ideal or overly formal sense.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention, the singular forms of which shall be construed as including plural referents unless the context clearly dictates otherwise. In particular, the terms "comprise" or "having" are used to specify that a feature, a number, a step, an operation, an element, a component, or a combination thereof, , Steps, operations, elements, components, or combinations thereof, as a matter of principle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals are used for the same components, although they are shown in different drawings.

FIG. 1 is a block diagram showing the overall configuration of an interface device for testing a switch and an operating device according to an embodiment of the present invention. Referring to FIG.

1, an interface device for testing a switch and an operating device according to an exemplary embodiment of the present invention is used for testing at least one of a switch and an operating device used in a distribution line. The state contact common connection unit 125, the communication unit 130, the switch sensing signal unit 140, the connection permitting unit 150, the connection terminal 155, and the center for integrally controlling the state contact unit 120, the state contact common connection unit 125, And may include a controller 145. Particularly, when the interface device according to an embodiment of the present invention is used, the switch and the switch operating device can be integrally connected and tested at the same time.

The specifications of the switchgear and switchgear operating devices currently operating on the distribution automation line are different according to the manufacturer and the year of manufacture, such as the pin arrangement, connection terminal, open / close drive control method, input voltage size, etc. However, And the number of pins of the connection terminal are the same. If an interface device capable of providing a desired signal to an arbitrary pin on the connection terminal 155 is configured using these characteristics, it is possible to integrally test the switchgear and the switchgear device having different specifications according to the manufacturer and the year of manufacture .

Here, in order to check whether the switching device and the switching device operate normally, the three-phase current signal I, the common current signal In, the six-phase voltage signal V, the common voltage signal Vcom, The cell structure selection unit 135 requires the contact signal A, the second breaker state contact signal B, the first breaker drive sense signal M + and the second breaker drive sense signal M- Thereby selectively inputting and outputting any one of the signal groups.

The three-phase current signal I and the common current signal In may include a three-phase negative bottom current signal Ia / Ib / Ic, and the six-phase voltage signal V and the common voltage signal In Vcom) may include a three-phase supply terminal voltage signal (Va / Vb / Vc) and a three-phase negative terminal voltage signal (Vr / Vs / Vt). The three-phase negative terminal current signal Ia / Ib / Ic may be a three-phase current signal 105 input from the test signal generator 100, and the three-phase supply terminal voltage signal Va / Vb / Vc) may be a three-phase supply terminal voltage signal 110 input from the test signal generator 100 and the three-phase negative terminal voltage signal Vr / Vs / Vt may be input from the test signal generator 100 The lower three-phase voltage signal 115 may be received.

The test signal generating apparatus 100 may exist separately from the interface apparatus and may exchange data with the interface apparatus through the communication unit 130. [ However, the present invention is not limited to this, and in another embodiment, the test signal generator 100 may be integrally provided inside the interface device. The 3-phase current signal 105, the 3-phase supply terminal voltage signal 110 and the 3-phase lower voltage signal 115 output from the test signal generator 100 are transmitted to the cell structure selector 135 .

The state contact unit 120 may select any one of a plurality of first state contacts for inputting and outputting the first contactor state contact signal A and the state contact common connection unit 125 may select the second contactor state contact signal B, And a plurality of second status contacts for inputting / outputting the second status contacts. Further, the status contact portion 120 and the status contact common connection portion 125 may be connected to each other, and they may be controlled by the central control portion 145. [ The first contactor state contact signal A or the second contactor state contact signal B may indicate an open state, a closed state, a locked state, or a gas pressure lowered state of the switch. The first contactor state contact signal A or the second contactor state contact signal B may be transmitted to the cell structure selection unit 135.

The communication unit 130 transmits and receives data to and from an external device such as the test signal generator 100, and may include at least one of a wired network module and a wireless network module. The wired network module may include a local area network (LAN), a universal serial bus (USB), an Ethernet, a power line communication (PLC) (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (CDMA), and the like. FDMA, Ubiquitous Sensor Network (USN), Radio Frequency Identification (RFID), Near Field Communication (NFC), Zigbee, Bluetooth, Long Term Evolution (LTE), Wireless Broadband Internet (WiBro), High Speed Downlink Packet Access (HSDPA), Wideband Code Division Multiple Access (WCDMA), Ultra Wide Band (UWB), and the like.

The cell structure selection unit 135 is provided in a plurality of the number of the fins so as to provide a desired signal to any of the fins in the connection terminal 155, and is connected in a one-to-one correspondence with the fins. For example, when the connection terminal 155 has 37 pins, 37 cell structure selection units 135 are also provided. In particular, the central control unit 145 can output the cell structure selection signal determined according to the maker and the year of manufacture of the switch or the switch operating device to the cell structure selection unit 135, It is possible to freely input and output a desired signal in correspondence with the switch and the switch operating device which are not provided.

The switch sensing signal unit 140 is connected to the cell structure selector 135 and outputs a first switch sensing signal M + and a second switch sensing signal M + The signal M- can be selected. Meanwhile, the first switch sensing signal M + or the second switch sensing signal M- can sense at least one of forward driving, reverse driving, open driving, and closing driving of the switch driving unit.

The central control unit 145 controls the state contact unit 120, the state contact common connection unit 125, the communication unit 130, the cell structure selection unit 135, the switch sensing signal unit 140, And may include a storage unit, an operation unit, and a control unit. The central controller 145 may be a single / multi core processor, an application processor (AP), a microprocessor unit (MPU), a digital signal processor (DSP) And the like.

The connection permitting unit 150 is connected between the cell structure selecting unit 135 and the connection terminal 155 to selectively allow only the pins used in the test of the switch or the switch operating device among the pins in the connection terminal 155 , Thereby preventing the inflow and outflow of unnecessary signals. Also, the connection between the cell structure selecting unit 135 and the connection terminal 155 can be completely released by the connection permitting unit 150 while the operation of the switch or the switch operating apparatus is not progressed.

The connection terminal 155 includes a plurality of, for example, 37 pins connected to the switch or the switch control device, and the pin of the connection terminal 155 is made of a conductor and can exchange electrical signals. On the other hand, the connection terminals of the switchgear or switchgear control device may be different depending on the manufacturer and the year of manufacture, but the number of the fins is the same, so that the connection terminal 155 is connected to the connection terminal 155 regardless of the model of the switchgear or the switchgear control device Lt; / RTI >

FIG. 2 is a circuit diagram of a cell structure selection unit that configures an interface device for testing a switch and an operating device according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 2, the cell structure selection unit configuring the interface device for testing a switch and an operating device according to an embodiment of the present invention includes a first switch state contact signal A, a second switch state contact signal B, The common voltage signal Vcom, the first switchgear drive sense signal M + or the second switchgear drive sense signal M- on the basis of the current signal I, the common current signal In, the six phase voltage signal V, Any one of eight terminals that can input and output can be electrically connected to the pin Pn.

Here, the three-phase current signal I may be any one of the three-phase current signals Ia / Ib / Ic and the six-phase voltage signal V may be the three-phase supply terminal voltage signal Va / Vb / Vc ) Or a three-phase negative terminal voltage signal (Vr / Vs / Vt). Also, the first switch sensing signal M + may be a signal for sensing the forward rotation driving voltage of the switch, and the second switch sensing signal M- may be a signal for sensing the reverse rotation driving voltage of the switch. . On the other hand, the pin Pn may be any one of a plurality of pins on the connection terminal, for example, P1 to P37. Accordingly, the specific signal set for each model of the switch or the switch operating device can be input / output through the arbitrary pin Pn on the connection terminal.

3 is a circuit diagram of a state-contact unit and a state-contact common connection unit that constitute an interface device for testing an operating device of an opening and closing device according to an embodiment of the present invention.

Referring to FIG. 3, the status contact unit constituting the interface device for testing a switch and an operating device according to an embodiment of the present invention includes a first status contact A 1 to an first status contact A 1 to An, A to the input / output terminal. On the other hand, the state contacts of the switchgear and the switchgear operating device may be commonly bundled according to the manufacturer or the year of manufacture. In response to this, the state contact common connection portion may include a plurality of switches 2-state contacts (B1 to Bn) can be connected to each other.

FIG. 4 is a circuit diagram of a switch sensing signal unit constituting an interface device for testing a switch and an operating device according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 4, the sensing signal of the switch may include only the forward rotation signal M + or the forward rotation signal M + and the reverse rotation signal M-, depending on the manufacturer or year of manufacture of the switchgear and the switchgear, There are cases where two signal lines are connected to four signal lines, and the other two signal lines are closed driving (C +, C-), while the other signal lines are open driving (O +, O-). Accordingly, it is possible to connect or disconnect the switch sensing signals in antiparallel to each other so as to sense the opening (OPEN) or the closing (CLOSE) of the switch regardless of the model of the switch and the switch Lt; / RTI >

FIG. 5 is a circuit diagram of a connection allowing unit that constitutes an interface device for testing an operating device of an opening and closing device according to an embodiment of the present invention. FIG.

5, the connection allowing unit constituting the interface device for testing the switchgear and the operating device according to the embodiment of the present invention includes signal lines P1 to P37 on the cell structure selection unit side, The switches S1 to S37 may be constituted by electrical switches which are respectively opened and closed. The electrical switches of the connection permitting section can be controlled by the central control section so that only the signals necessary for the test of the switch or the switch operating device can be input and output.

6 is a flowchart illustrating a method for testing an operating device of an opening and closing device according to an embodiment of the present invention.

Referring to FIG. 6, the switch or switch operating device to be tested is selected (step S100). The interface device for testing the switch and the switch operating device according to an embodiment of the present invention may include an input unit for inputting information from a user to thereby provide information on the test subject such as the manufacturer and the year of manufacture of the switch, Input can be received.

After disconnecting all the pins of the connection terminal (step S110), a signal for selecting the cell structure is outputted (step S120). The central control unit may completely disconnect the connection between the cell structure selection unit and the connection terminal through the connection permitting unit to prevent the inflow and outflow of unnecessary signals. It is possible to output a signal corresponding to the cell structure selection unit according to the contact, the common connection of the status contacts, the control method of the switch, and the like.

In step S140, the central control unit outputs a status contact signal to the status contact unit in step S130, and outputs a status contact common connection signal to the status contact common connection unit in step S140. The state contact unit may select any one of a plurality of state contacts for inputting / outputting a contactor state contact signal according to an inputted state contact signal, and the state contact common connection unit may select a contactor state contact signal according to the inputted state contact common connection signal It is possible to connect two or more of the plurality of state contacts to be input / output.

Then, the central control unit outputs a switch sensing method selection signal to the switch sensing signal unit (step S150), and then the central control unit is used for testing the switch or the switch operating apparatus among the pins at the connection terminal through the connection permitting unit Only the pins are allowed to selectively connect (step S160). The switch sensing signal unit may select the switch sensing signal to sense at least one of the forward rotation drive, the reverse rotation drive, the open drive, and the closed drive of the switch according to the input switch sensing method selection signal.

Subsequently, in step S180, the test is performed on any one or more of the selected switch or switch operating device, and the connection to all the pins of the connection terminal is released in step S180. According to another aspect of the present invention, there is provided an interface device, comprising: a cell structure selection unit for selecting a cell structure and a connection terminal, The connection can be completely released.

According to the interface device for testing the switchgear and the switchgear control device according to the embodiment of the present invention described above, it is possible to integrally test the switchgear switchgear and the switchgear device for the distribution line, which are not standardized at present, The time and cost required to check the switchgear and the switchgear can be greatly reduced. That is, it is possible to check various switchgear and switchgear operating devices having different makers or years of manufacture with a single device, so that it is possible to flexibly cope with the malfunction and its cause in advance. Further, the interface device according to an embodiment of the present invention can be lightened for easy portability, and can also be used for testing terminal devices of a distribution automation system or a recloser.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. It will be understood that various modifications and changes may be made without departing from the scope of the present invention.

100: Test signal generator
105: Three-phase current signal
110: Three-phase supply voltage signal
115: Three-phase lower voltage signal
120: State contact part
125: Status contact common connection
130:
135: Cell structure selection unit
140: Actuator drive detection signal section
145:
150:
155: connection terminal

Claims (11)

An apparatus for testing at least one of an open / close device or a switch operating device used in a distribution line,
A connection terminal including a plurality of pins connected to the switch or the switch operating device; And
A first switch signal, a second switch signal, a third switch signal, a common current signal, a sixth voltage signal, a common voltage signal, a first switch contact signal, a second switch contact signal, And a cell structure selecting unit for selecting,
The cell structure selection unit includes a plurality of the cell structure selection units as many as the number of the fins,
Interface device.
The method according to claim 1,
The number of the pins and the number of the cell structure selection units is 37
Interface device.
The method according to claim 1,
The first contactor state contact signal or the second contactor state contact signal includes at least one of an open state, a closed state, a locked state,
Interface device.
The method according to claim 1,
A state contact unit for selecting any one of a plurality of first state contacts for inputting / outputting the first contactor state contact signal; And
And a second state-contact common connection unit for connecting at least two of the plurality of second state-contacts for inputting / outputting the second contactor state contact signal
Interface device.
The method according to claim 1,
The first switch sensing signal or the second switch sensing signal senses forward driving, reverse driving, open driving or closing driving
Interface device.
The method according to claim 1,
Wherein the three-phase current signal and the common current signal include a three-phase negative bottom current signal
Interface device.
The method according to claim 1,
The voltage signal and the common voltage signal of the six phases include a three-phase supply terminal voltage signal and a three-phase negative terminal voltage signal
Interface device.
The method according to claim 1,
And a connection permitting unit connected between the connection terminal and the cell structure selecting unit to selectively connect only the pins used for the test of the switch or the switch operating device among the pins
Interface device.
The method according to claim 1,
Further comprising a communication unit for exchanging data with an external device
Interface device.
The method according to claim 1,
And a central control unit for outputting a cell structure selection signal to the cell structure selection unit,
The cell structure selection signal is determined depending on the manufacturer and the year of manufacture of the switch or the switch operating device
Interface device.
The method according to claim 1,
The switch and the switch operating device are simultaneously tested
Interface device.

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