KR20130001589A - Apparatus for processing an avsent phase in hydroelectricity arrangement of the specialhightension - Google Patents

Apparatus for processing an avsent phase in hydroelectricity arrangement of the specialhightension Download PDF

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Publication number
KR20130001589A
KR20130001589A KR1020110062445A KR20110062445A KR20130001589A KR 20130001589 A KR20130001589 A KR 20130001589A KR 1020110062445 A KR1020110062445 A KR 1020110062445A KR 20110062445 A KR20110062445 A KR 20110062445A KR 20130001589 A KR20130001589 A KR 20130001589A
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KR
South Korea
Prior art keywords
imaging
phase
signal
generator
unit
Prior art date
Application number
KR1020110062445A
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Korean (ko)
Inventor
박찬용
안수종
Original Assignee
주식회사 케이티
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Publication date
Application filed by 주식회사 케이티 filed Critical 주식회사 케이티
Priority to KR1020110062445A priority Critical patent/KR20130001589A/en
Publication of KR20130001589A publication Critical patent/KR20130001589A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to underload or no-load
    • H02H3/13—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to underload or no-load for multiphase applications, e.g. phase interruption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/587—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using opto-couplers

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: An imaging processing device in an extra-high voltage passive equipment is provided to operate a generator according to the generation of imaging by installing a sensor for sensing the image on each of three phases. CONSTITUTION: An image sensing unit(100) senses imaging on each of three phase power supplies. The image sensing unit senses one or more of the imaging on the three phase power supplies to activate a generator operating unit(300). A control unit(200) maintains a block state of the operation of a vacuum circuit breaker(VCB). The generator operating unit operates a generator according to the control of the control unit. A transmission unit(400) transmits a generator operation state to the outside according to the control of the control unit. [Reference numerals] (100) Image sensing unit; (200) Control unit; (300) Generator driving unit; (400) Transmission unit

Description

APAPATUS FOR PROCESSING AN AVSENT PHASE IN HYDROELECTRICITY ARRANGEMENT OF THE SPECIALHIGHTENSION}

The present invention relates to an image processing apparatus of a special high-voltage power receiving facility, and more particularly, by placing a sensor for detecting an image in each of the three phases, as the phase occurs in any one of them, the generator is operated to supply power to the load and the vacuum circuit breaker. An imaging processing apparatus for a special high voltage power receiving facility which prevents damage to the protection circuit of the special high voltage power receiving facility by maintaining the operation of the circuit breaker.

In general, when a user using an electromechanical device is supplied with three phase (R, S, T) power from KEPCO, cut-out switches (COS: Cut-) on each side of the transformer primary side, which is a power facility. Catch holders are installed at the secondary side of the Out Switch and Transformer to automatically cut off the converter in the event of overload or short circuit in the indoor equipment to protect the power equipment and the electrical equipment installed indoors.

However, when the fuse built in the cutout switch or the catch holder is blown due to external factors, the input power is in an open phase.

If one of the three phases is missing, the vacuum breaker (VCB) in the special high-voltage faucet does not detect it and connects the load.The moment the load is applied, the vacuum breaker operates to cut off the connection and then reload the load. Since the connection process was repeated, the surge voltage generated in this process could cause damage to the protection circuit of the power receiving equipment.

In order to solve the problems of the prior art as described above, the present invention has a sensor that detects an open phase in each of the three phases to operate the generator as the open phase occurs in any one to supply power to the load and cut off the operation of the vacuum circuit breaker. It is an object of the present invention to provide an image forming apparatus for a special high voltage power receiving facility which prevents the protection circuit of the special high voltage power receiving facility from being damaged by maintaining the state.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

An apparatus of the present invention for achieving the above object, the image processing apparatus of the special high-voltage power receiving equipment, phase detection means for detecting the phase of each of the three-phase power source; Control means for activating a generator driving means and maintaining the operation of a vacuum breaker (VCB) in a blocked state as the phase detection means detects at least one phase loss among three phases; The generator driving means for driving the generator according to the control of the control means; And a transmission means for transmitting the fact that the generator is driven under the control of the control means.

The present invention as described above, by placing a sensor to detect the phase-phase in each of the three phases, by operating the generator in accordance with any one of the phase loss occurs by supplying power to the load and maintaining the operation of the vacuum circuit breaker, special high voltage There is an effect that can prevent the protection circuit of the equipment from being damaged.

1 is an explanatory diagram of one embodiment of a special high-voltage power receiving facility to which the present invention is applied;
2 is a configuration diagram of an embodiment of an image processing apparatus of a special high-voltage power receiving facility according to the present invention;
3 is a configuration diagram of an embodiment of an image detection unit according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It can be easily carried out. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view illustrating an embodiment of a special high voltage power receiving facility to which the present invention is applied.

The 22.9kV power supplied from the substation is supplied to the receiving equipment of each customer through a distribution system consisting of processing and underground distribution lines, and in the power receiving equipment, the 22.9kV power supplied from the substation is connected through the inlet as shown in FIG. After passing through the MOP panel (10) equipped with a protective device and a measuring device, through the PT panel (20) and then through the INCOMING panel (30) as much as necessary feeder (FEEDER) is supplied to each load from the transformer panel 50 for power supply through the panel 40, and in this case, it is a type using a panel as a general special high voltage power receiving facility, and receives power from the distribution line through the inlet of the ship and sends it to each load. The main consists of a variety of devices installed to protect the load end line up to the branch point.

As a component device, a segregator or load breaker is configured at the front of the line to prevent the accident from spreading by separating the line from the accident, and an arrester (LA) mounted to protect the line in case of abnormal voltage, It leads to a power fuse to protect the equipment of the latter stage when the overcurrent is energized, and is connected to a transformer transformer for measuring power supply, and leads to an integrated power meter (WHM) for measuring the amount of power, and in the transformer for transformer for power supply (MOF) In order to allow the user to drop to the required voltage, it is connected to the bus transformer PT, and a power fuse for protecting the bus transformer is configured on the primary side of the bus transformer PT.

In addition, a current transformer (CT) is configured between the transformer transformer current transformer (MOF) and the connected parking circuit breaker, and is connected to the disconnector / ground breaker (DS / ES) through the parking circuit breaker, and each load is required. In the same configuration, after passing through as many disconnectors / grounding switches as necessary, each panel is connected to each load via the transformer 50 in each panel.

On the other hand, the power drawn through the cable is connected to the primary side of the load switch, and the load switch is closed at the primary fixed contact while the movable contact is rotated, and the circuit is closed and the circuit is opened while rotating in the opposite direction. The side is connected to the power fuse through the conductor between the switch and the power fuse, and the power fuse prevents accident spread to the front when an accident of the load end occurs, and it is installed so that the fuse can be easily replaced if the fuse is blown by the accident current. The arrester LA is installed in parallel on the secondary side, and when an abnormal voltage occurs, the arrester LA is connected to the ground through the arrester.

On the secondary side of the power fuse, it is connected to the transformer transformer transformer for power supply at the bottom, and serves to measure the power amount, and is connected in parallel to the PT panel and the incoming panel 30 through the bushing coupler. 20) Power is supplied, which is connected to the bus transformer through the fuse of the bus transformer protection, and used to drop the voltage to be used in this transformer.

In addition, the main power connected to the incoming panel 30 through the bushing is connected to the main circuit breaker through the current transformer (CT) to serve to protect the line by blocking when an accident or opening and closing of the entire load here, Piti panel (20) ) The switch installed in the lower part and the upper part of the circuit breaker (secondary) and the upper part of the feeder panel 40 is installed so that the circuit breaker is fixedly installed so that it can be safely operated as an open / close device for repair or repair. .

In addition, the feeder panel 40 may vary in quantity depending on the load used, the size may also vary according to the capacity of the transformer panel 50 for receiving, and the connection material at the secondary side of the breaker of the feeder panel 40. Through the cable or booth duct is connected to the high-voltage terminal of the power transformer, the voltage is changed by the high-voltage coil and low-voltage coil ratio to connect to the low-voltage side through the secondary low-voltage terminal.

2 is a configuration diagram of an embodiment of an image processing apparatus of a special high-voltage power receiving facility according to the present invention.

As shown in FIG. 2, the apparatus for processing special high-voltage power receiving facility imaging according to the present invention includes an image sensing unit 100, a control unit 200, a generator driving unit 300, and a transmission unit 400.

Looking at the respective components, first, the phase detection unit 100 detects the phase of each of the three-phase power.

The control unit 200 activates the generator driving unit 300 as the phase detection unit 100 detects at least one phase loss of the three phases, and maintains the operation of the vacuum breaker (VCB) in a blocked state. .

The generator driver 300 drives the generator under the control of the controller 200.

The transmitter 400 warns that the generator is driven under the control of the controller 200 or notifies the central control system through wired / wireless wireless communication.

Hereinafter, the imaging detection unit 100 will be described in more detail with reference to FIG. 3.

The imaging detection unit 100 includes a first imaging detector 110, a second imaging detector 120, a third imaging detector 130, and an imaging determination unit 140.

The first imaging detector 110 depressurizes the R-phase power supply to a predetermined voltage using a resistance voltage divider method, removes noise through a photocoupler and a NOT gate, and converts the digital signal into a digital signal.

The second imaging detector 120 depressurizes the S-phase power supply to a predetermined voltage by using a resistance voltage divider method, removes noise through a photocoupler and a NOT gate, and converts the digital signal into a digital signal.

The third phase detector 130 depressurizes the T-phase power supply to a predetermined voltage by using a resistance voltage divider method, removes noise through a photocoupler and a NOT gate, and converts the signal into a digital signal.

The imaging decision unit 140 is an asynchronous differential circuit that eliminates duplicate portions of the digital signal, a logic circuit that determines whether the three-phase power is missing by using an output signal of the asynchronous differential circuit, and when the logic circuit determines that the phase is missing. And an output circuit for outputting an imaging signal.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

100: phase detection unit 200: control unit
300: generator drive unit 400: transmission unit
110: first imaging detector 120: second imaging detector
130: the third imaging detector 140: the imaging judgment

Claims (3)

Phase detection means for sensing phase loss of each of the three-phase power sources;
Control means for activating a generator driving means and maintaining the operation of a vacuum breaker (VCB) in a blocked state as the phase detection means detects at least one phase loss among three phases;
The generator driving means for driving the generator according to the control of the control means; And
Transmission means for transmitting the fact that the generator driving under the control of the control means to the outside
An imaging treatment apparatus for a special high voltage power receiving facility comprising a.
The method of claim 1,
The imaging detection means,
A first imaging detector for reducing the R-phase power to a predetermined voltage using a resistive voltage divider, removing noise through a photocoupler and a NOT gate, and converting the signal into a digital signal;
A second imaging detector for reducing the S-phase power to a predetermined voltage by using a resistance voltage divider, removing noise through a photocoupler and a NOT gate, and converting the signal into a digital signal;
A third imaging detector which reduces the T phase power to a constant voltage by using a resistance voltage divider, removes noise through a photocoupler and a NOT gate, and converts the signal into a digital signal; And
An imaging judgment unit that removes the overlapping part of each digital signal, determines whether or not the three-phase power supply is missing, and outputs an imaging signal.
An imaging treatment apparatus for a special high voltage power receiving facility comprising a.
The method of claim 2,
The imaging determination machine,
An asynchronous differential circuit for removing redundant portions of the digital signal;
A logic circuit that determines whether or not the three-phase power supply is missing by using an output signal of the asynchronous differential circuit;
An output circuit for outputting an imaging signal when the logic circuit determines that it is imaging
An imaging treatment apparatus for a special high voltage power receiving facility comprising a.
KR1020110062445A 2011-06-27 2011-06-27 Apparatus for processing an avsent phase in hydroelectricity arrangement of the specialhightension KR20130001589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110062445A KR20130001589A (en) 2011-06-27 2011-06-27 Apparatus for processing an avsent phase in hydroelectricity arrangement of the specialhightension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110062445A KR20130001589A (en) 2011-06-27 2011-06-27 Apparatus for processing an avsent phase in hydroelectricity arrangement of the specialhightension

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KR20130001589A true KR20130001589A (en) 2013-01-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220009639A (en) * 2020-07-16 2022-01-25 서일대학교산학협력단 Sensing device integrated in fuse holder of cut out switch
KR20230051409A (en) 2021-10-09 2023-04-18 보문 주식회사 Incoming panels for power facility protection that can detect and block phase loss remotely using a smart wave power remote controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220009639A (en) * 2020-07-16 2022-01-25 서일대학교산학협력단 Sensing device integrated in fuse holder of cut out switch
KR20230051409A (en) 2021-10-09 2023-04-18 보문 주식회사 Incoming panels for power facility protection that can detect and block phase loss remotely using a smart wave power remote controller

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