KR20170061210A - Control output terminal apparatus and system for examinating contact thereof - Google Patents

Control output terminal apparatus and system for examinating contact thereof Download PDF

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Publication number
KR20170061210A
KR20170061210A KR1020150165275A KR20150165275A KR20170061210A KR 20170061210 A KR20170061210 A KR 20170061210A KR 1020150165275 A KR1020150165275 A KR 1020150165275A KR 20150165275 A KR20150165275 A KR 20150165275A KR 20170061210 A KR20170061210 A KR 20170061210A
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South Korea
Prior art keywords
control
output terminal
control output
relay
alarm
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KR1020150165275A
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Korean (ko)
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KR101917585B1 (en
Inventor
손만권
오영현
정성호
신한철
장순호
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한국전력공사
주식회사 제나드시스템
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • H02J13/0006—

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)

Abstract

A control output terminal apparatus according to an embodiment of the present invention includes: a relay for receiving and receiving a control signal; a communication unit for transmitting a switching state of the relay to a communication object; And the relay may include a first contact connected to the control point of the facility to control the point and switched in accordance with the control signal and a second contact connected to the communication unit and switched in accordance with the control signal.

Figure P1020150165275

Description

[0001] The present invention relates to a control output terminal apparatus,

The present invention relates to a control output terminal apparatus and its contact checking system.

Generally, a control output terminal device connecting the facility and a remote terminal unit (RTU) to each other for supervisory control and data acquisition (SCADA) of the facility can be used.

Checking of the control confirmation output for these control output terminals is important for safety and equipment life. Conventionally, when a control signal is applied to a facility through a control output terminal device, a check of the control confirmation output is performed by the manager measuring the voltage of the terminal terminal while checking the application of the control signal through the control module.

However, it can take a lot of time, money, and risk to perform voltage measurement at the same time as the administrator checks the control signal. Also, if there are many points or complex points for measuring the voltage at the plant, the possibility of error occurrence can be high when checking the control check output.

In addition, if an unidentified accident occurs during operation of the equipment after checking the control confirmation output, it may be difficult to identify the cause of the accident through the control output terminal device.

An embodiment of the present invention provides a control output terminal apparatus and a contact checking system thereof.

A control output terminal apparatus according to an embodiment of the present invention includes: a relay for receiving and receiving a control signal; And a communication unit for transmitting a switching state of the relay to a communication object; . ≪ / RTI >

Wherein the relay comprises: a first contact connected to a control point of the facility to control the point and switched in accordance with the control signal; And a second contact connected to the communication unit and switched according to the control signal; . ≪ / RTI >

For example, one end of the point is applied with a predetermined voltage, the other end of the point is connected to the first contact, and the first contact is on when the predetermined voltage is applied to the other end of the point .

For example, the communication unit may perform an alarm operation based on a switching state of the relay.

A control output terminal device contact checking system according to an embodiment of the present invention includes: a host for transmitting a control signal;

A plurality of control output terminal devices each including a relay for switching according to the control signal and controlling a control point of the facility according to a switching state of the relay; And

An alarm device for receiving the switching state of the relay from the plurality of control output terminal devices and performing an alarm operation; . ≪ / RTI >

For example, the relay may include: a first contact connected to the control point and switched according to the control signal; And a second contact connected to the alarm device and switched in accordance with the control signal; . ≪ / RTI >

For example, the control point may be a breaker provided in the line.

For example, the plurality of control output terminal devices are divided into a plurality of groups, and each of the control output terminal devices includes a plurality of FPDs including a control output terminal device corresponding to one of the plurality of groups; And an MPD relaying the control signal between the host and the FPD; . ≪ / RTI >

For example, the alarm device includes a broadcast transmission device and / or a broadcasting system that performs an alarm operation through broadcasting, and the MPD receives an alarm signal through the plurality of control output terminal devices, And / or broadcast system.

For example, the broadcasting system can perform an alarm operation and store an alarm history in conjunction with a security monitoring system for security monitoring of the facility.

For example, the alarm device may further include a display device included in the FPD.

The control output terminal apparatus according to the embodiment of the present invention can promptly and accurately provide the manager with the information necessary for checking the control check output, thereby reducing the risk of checking the control check output.

Further, according to the present invention, an error that may occur when checking the control confirmation output is reduced, so that the stability and reliability of the control output terminal apparatus can be secured.

Further, according to the present invention, it is possible to secure the data necessary for the cause identification of an accident occurring during the check of the control confirmation output, thereby further increasing the stability and reliability of the control output terminal device.

1 is a diagram illustrating a control output terminal apparatus according to an embodiment of the present invention.
Fig. 2 is a diagram specifically illustrating the relay of Fig. 1. Fig.
3 is a block diagram illustrating a control output terminal device contact checking system according to an embodiment of the present invention.
4 is a diagram specifically illustrating an alarm operation of the control output terminal device contact checking system of FIG.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order that those skilled in the art can easily carry out the present invention.

1 is a diagram illustrating a control output terminal apparatus according to an embodiment of the present invention.

1, a control output terminal apparatus 100 according to an embodiment of the present invention may include relays 110a, 110b, and 110c and a communication unit 120. FIG. Also, the control output terminal apparatus 100 can control the control points 210a and 210b of the facility 200. For example, the facility 200 may be a substation, and the control points 210a and 210b may be circuit breakers.

The relays 110a, 110b, and 110c can receive control signals and switch them. Here, the control signal may be a signal transmitted remotely from a remote terminal unit (RTU).

Also, the level of the voltage applied to the control points 210a and 210b may be changed according to the switching states of the relays 110a, 110b, and 110c. For example, 24V is applied to one end of the control points 210a and 210b, and 24V is applied to the other end of the control points 210a and 210b according to the switching state of the relays 110a, 110b, Lt; / RTI > The states of the control points 210a and 210b are changed according to the voltage between one end and the other end of the control points 210a and 210b so that the relays 110a, , 210b.

That is, the relays 110a, 110b, and 110c may act as a relay between the remote terminal device and the control points 210a and 210b.

For example, some relays 110a and 110b among the relays 110a, 110b and 110c respectively control the voltages applied to the other ends of the different control points 210a and 210b, It is possible to control the voltage applied to one end of the control points 210a and 210b.

The communication unit 120 can transmit the switching states of the relays 110a, 110b, and 110c to the communication target. Here, the communication target may be an alarm device, a broadcast transmission device, a portable terminal carried by an administrator, or a computer. Accordingly, the manager can smoothly recognize the switching states of the relays 110a, 110b, and 110c. Also, the communication object can store the history of the relays 110a, 110b, and 110c.

Also, the communication unit 120 may directly perform an alarm operation based on the switching states of the relays 110a, 110b, and 110c. For example, the communication unit 120 may include an LED or a speaker for recognizing an alarm from the outside. Accordingly, the communication unit 120 can control the light emission of the LED or the acoustic output of the speaker.

For example, the communication unit 120 receives a signal from the relays 110a, 110b, and 110c using a processing device, generates a communication signal, and transmits the generated communication signal through RS-485 (Multi Drop) communication It can be transmitted to the communication object.

Fig. 2 is a diagram specifically illustrating the relay of Fig. 1. Fig.

Referring to FIG. 2, the relay 310 may include a first contact 311, a second contact 312, a coil 313, and a core 314. That is, the relay 310 may have a double pole single throw (DPST) structure.

The first contact 311 is connected to the control point of the facility and is switched according to the control signal to control the point.

The second contact 312 is connected to the communication unit and is switched according to the control signal, so that the switching state information can be transmitted to the communication unit. That is, the second contact 312 can feed back the control signal in the control output terminal.

A current based on the control signal can flow through the coil 313. As the current flows through the coil 313, the coil 313 can form a magnetic flux around the coil 313. The connection states of the first and second contacts 311 and 312 may vary according to the magnetic flux.

The core 314 can amplify the magnetic flux formed by the coil 313. Accordingly, the connection states of the first and second contacts 311 and 312 may be identical to each other.

When the first and second contacts 311 and 312 are always in the same connection state, the relay 310 can perform a control role by using one contact point and control information by using the other contact point .

3 is a block diagram illustrating a control output terminal device contact checking system according to an embodiment of the present invention.

Referring to FIG. 3, the control output terminal device contact checking system according to an embodiment of the present invention may include a host 400, a control output terminal device 500, and an alarm device 600.

The host 400 may transmit a control signal for controlling the facility 700 to the control output terminal apparatus 500. [ For example, the host 400 may be a feeder (power supply), a centralized supervisory control panel, an HMI, or the like.

The control output terminal apparatus 500 may include a plurality of relays each switching according to a control signal and controlling different control points of the facility 700 according to a switching state. For example, the control output terminal apparatus 500 may include a DIP switch to sequentially control different control points by setting the order of a plurality of relays.

The alarm device 600 receives the switching states of the plurality of relays from the control output terminal device 500 and can perform an alarm operation. For example, the alarm device 600 may store a DB and a corresponding voice file for the control output terminal 500, receive control results, guide the control results by voice, and display the control results on a screen. Also, the alarm device 600 may store the control result as a history and transmit the control result to the broadcast transmission device.

For example, facility 700 may be an unattended substation. In this case, the control terminal terminal contact point checking system can be operated in conjunction with the unmanned security monitoring system of the unmanned substation, so that it can broadcast the operation sound to the substation substation through broadcasting in the interworking test of the transmission substation.

Between the host 400 and the control output terminal 500 is connected an MPD (main process device) 410 for receiving a control signal from the host 400 and analyzing the control signal, an MPD 410, And an FPD (field process device) 420 acting as a relay between the output terminal devices 500 may be provided.

For example, the MPD 410 may relay between the host 400 and the FPD 420 through communication. When there are a plurality of control output terminal apparatuses 500, the control output terminal apparatuses 500 can be divided into a plurality of groups according to control points. The FPD 420 may perform the relay operation by allocating the control output terminal apparatus 500 according to the group.

4 is a diagram specifically illustrating an alarm operation of the control output terminal device contact checking system of FIG.

Referring to FIG. 4, each of the plurality of FPDs 421, 422, and 423 includes a control output terminal 500 and an alarm device 600 to perform an alarm operation by itself, such as a display device, The alarm signal may be transmitted to the MPD 410 and the alarm broadcast may be transmitted through the broadcast transmission apparatus 411 and the broadcast system 412.

For example, the broadcast transmission apparatus 411 may be provided in the MPD 410 to display or voice guidance, and may transmit the control result to the broadcast system 412. In addition, the broadcast transmission device 411 may store a control point DB and an alarm system-specific DB for the entire facility to perform various displays or guidance.

Accordingly, the manager can recognize the contact state of the control output terminal device through visual or auditory irrespective of the current position, shorten the inspection time, and take quick action in case of an accident.

For example, the broadcasting system 412 can perform an alarm operation in association with a separate system such as an unmanned security monitoring system, and can store an alarm history. Since the alarm history is accumulated through the system which always operates like the unmanned security monitoring system, even if an unidentified accident occurs during operation of the equipment after checking the control confirmation output, it becomes easy to grasp the cause of the accident through the control output terminal device.

Meanwhile, at least one of the alarm device 600, the broadcast transmission device 411, and the broadcasting system 412 may be stopped to stop the alarm function and to perform other tests such as the remote terminal device have.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Anyone can make various variations.

100, 500: Control output terminal device
110a, 110b, 110c, 310:
120:
200, 700: Equipment
400: Host
600: Alarm device

Claims (10)

A relay for receiving and switching control signals; And
A communication unit for transmitting a switching state of the relay to a communication object; Lt; / RTI >
The relay includes:
A first contact connected to a control point of the facility to control the point and switched in accordance with the control signal; And
A second contact connected to the communication unit and switched according to the control signal; And a control output terminal device.
The method according to claim 1,
One end of the point is applied with a predetermined voltage,
The other end of the point being connected to the first contact,
And the first contact applies the predetermined voltage to the other end of the point when the first contact is on.
The method according to claim 1,
And the communication unit performs an alarm operation based on a switching state of the relay.
A host for transmitting a control signal;
A plurality of control output terminal devices each including a relay for switching according to the control signal and controlling a control point of the facility according to a switching state of the relay; And
An alarm device for receiving the switching state of the relay from the plurality of control output terminal devices and performing an alarm operation; And a control output terminal device.
5. The relay apparatus according to claim 4,
A first contact connected to the control point and switched according to the control signal; And
A second contact connected to the alarm device and switched according to the control signal; And a control output terminal device contact checking system.
5. The method of claim 4,
Wherein the control point is a circuit breaker provided in the line.
5. The method of claim 4,
The plurality of control output terminal devices being divided into a plurality of groups and each including a control output terminal device corresponding to one of the plurality of groups; And
An MPD relaying the control signal between the host and the FPD; And a control output terminal device.
8. The method of claim 7,
The alarm device includes a broadcast transmission device and / or a broadcast system that performs an alarm operation through broadcasting,
Wherein the MPD receives an alarm signal through the plurality of control output terminal devices and transmits the alarm signal to the broadcasting transmission device and / or the broadcasting system.
9. The method of claim 8,
Wherein the broadcasting system performs an alarm operation in association with a security monitoring system for security monitoring of the facility and stores an alarm history.
9. The method of claim 8,
Wherein the alarm device further comprises a display device,
Wherein the display device is provided in the FPD.
KR1020150165275A 2015-11-25 2015-11-25 Control output terminal apparatus and system for examinating contact thereof KR101917585B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190044982A (en) 2017-10-23 2019-05-02 한국전력공사 Apparatus and method for recording operation history of remote terminal unit
WO2021043041A1 (en) * 2019-09-04 2021-03-11 上海乐研电气有限公司 Contact signal acquisition circuit for on-site on-line check of gas density relay

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7208955B2 (en) * 2005-03-15 2007-04-24 Network Appliance, Inc. Power relay or switch contact tester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190044982A (en) 2017-10-23 2019-05-02 한국전력공사 Apparatus and method for recording operation history of remote terminal unit
WO2021043041A1 (en) * 2019-09-04 2021-03-11 上海乐研电气有限公司 Contact signal acquisition circuit for on-site on-line check of gas density relay
US11988713B2 (en) 2019-09-04 2024-05-21 Shanghai Roye Electric Co., Ltd. Contact signal acquisition circuit for on-site on-line check of gas density relay

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