KR101631992B1 - Arc flash detection system using prism - Google Patents
Arc flash detection system using prism Download PDFInfo
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- KR101631992B1 KR101631992B1 KR1020150133645A KR20150133645A KR101631992B1 KR 101631992 B1 KR101631992 B1 KR 101631992B1 KR 1020150133645 A KR1020150133645 A KR 1020150133645A KR 20150133645 A KR20150133645 A KR 20150133645A KR 101631992 B1 KR101631992 B1 KR 101631992B1
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- ultraviolet ray
- arc flash
- sensor
- detecting
- arc
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- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000004891 communication Methods 0.000 claims description 11
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000013459 approach Methods 0.000 description 7
- 206010014357 Electric shock Diseases 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004611 spectroscopical analysis Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 102000004142 Trypsin Human genes 0.000 description 1
- 108090000631 Trypsin Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 235000020004 porter Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- 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
- G08B21/185—Electrical failure alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
The present invention relates to an arc flash detection system using a prism. More particularly, the present invention relates to an arc flash detection system using a prism that detects a specific disturbance caused by an ultraviolet ray, a visible ray and an arc and trips the breaker in a short time when an arc flash occurs, And an arc flash detection system using the same.
Generally, various terminals and bus-bar are exposed to the outside in the case of high and low voltage switchboards for receiving and transforming high-voltage and low-voltage electricity, motor control panel and distribution board, Safety checks should be strictly carried out during safety inspections and maintenance of facilities requiring access.
In particular, for the maintenance and maintenance of high- and low-voltage switchboards, motor control boards and distribution boards in live condition, the manager often accesses the high- and low-voltage switchboards, the motor control panel and the distribution board. In this case, You have to know and cope enough.
Conventional high / low voltage switchgear, motor control panel, and panel safety accident prevention system have a method of installing and shielding a shielding network (insulator) to prevent electric shock accidents in high and low voltage switchgear, motor control panel, Respectively.
However, in the conventional high / low voltage switchgear, motor control panel, and distribution board safety accident prevention system, since the access to the shielding network is suppressed, electric shock accident often occurs due to careless approach.
Therefore, recently, in order to solve such a problem, Korean Patent Registration No. 1076772 (the name of the invention: a danger warning system for a power transmission and distribution panel using a hybrid sensor; hereinafter referred to as "cited invention 1") has been proposed.
In this reference 1, a risk alarm is generated when a person is approaching within a predetermined distance in a danger zone or a protection zone, and a warning signal is transmitted to the object And a main control unit for calculating an approach distance and performing a differential alarm according to the calculated approach distance to recognize an electric shock risk.
Therefore, in Reference 1, it is determined whether or not an alarm operation is performed based on motion information within a predetermined distance, which is installed in a dangerous area or an area requiring protection in a switchboard, and based on the object detection information, By calculating the approach distance to an object and generating a danger warning to recognize the danger of electric shock by performing differential warning according to the calculated approach distance, it is possible to prevent an electric shock accident caused by careless approach There is an advantage that it has.
On the other hand, according to the cited invention 1, since only a differential alarm is performed according to the approach distance of the operator, there is a limitation in that measures for protecting the close operator are not provided.
In order to solve such a problem, Korean Patent Laid-Open Publication No. 2008-0057176 (the name of the invention: a method of reducing the arc flash protection level of a circuit breaker and a circuit breaker; hereinafter referred to as "cited invention 2") has been proposed, A circuit breaker comprising: a microprocessor; and a wireless sensor in communication with the microprocessor, the wireless sensor configured to detect the presence of a person within a predetermined area around the circuit breaker, The protection level of the circuit breaker is changed by the microprocessor when it is detected by the sensor and the current signal from the protection circuit (not shown) is used to control the voltage regulation of the circuit breaker Circuit.
The regulated signal is then supplied to the microprocessor of the circuit breaker. It also allows the wireless sensor and flux-shifter circuit to be connected to the microprocessor.
Thus, in Reference 2, the circuit breaker is initially programmed to operate at a normal protection level.
If an overload occurs in the circuit to which the circuit breaker is connected, the microprocessor sends a signal to the flux shifter circuit and the trip unit (not shown) of the circuit breaker trips.
In particular, Reference 2 further discloses that the range of the wireless sensor specifies a predetermined zone, so that whenever a presence of a human is detected within that zone, the detection is communicated to the microprocessor, The level of protection provided by the circuit breaker is reduced such that the flux shifter trips the circuit breaker when the current signal reaches the reduced level set in the microprocessor in the light of the fact that it has been detected.
Once a person leaves the safe zone, the microprocessor can be programmed to reset its protection level to normal or any other desired level.
Thus, if a maintenance and / or test staff, who maintains and / or tests a movable gear including a circuit breaker as detected by a wireless sensor, walks into a given area, The arc-flash protection level is automatically lowered without having to reach the switch, thereby minimizing or eliminating the risk of the user being exposed to a potential arc flash associated with accidental fault, thereby achieving a further effect on operator protection .
As described above, Reference 2 shows that when the person is detected within the set distance, the arc flash protection level is lowered so that the worker can be protected from the arc flash, and if the worker is out of the set distance, However, in reality, the grid voltage, the distance between the operator and the conductor approaching the switchgear, the arc fault current calculated by the symmetrical three-phase short-circuit current, and the resulting incident energy level are different. The arc flash protection level is excessively lowered, so that a power failure due to frequent trips may occur, or the arc flash protection level may be maintained at a high level, which may cause damage to personnel and equipment due to the arc flash.
In addition, arc flash accidents occur in all electrical facilities including distribution boards and switchboards. As the duration of generation increases, the arc energy becomes large, which causes not only great damage to electric power equipment but also personal injury due to accidents.
In addition, domestic arc flash accidents account for 25% of all electric accidents, and more than 3,000 occur. Such arc flash is a time when it is necessary to take safety measures against faults and accidents of electric power equipment such as a switchboard.
(Patent Document 1) Korean Patent No. 10-1076772 (entitled " Risk Warning Device for Electric Shielding Power Transmission Using Composite Sensor)
(Patent Document 2) Korean Patent Publication No. 2008-0057176 (Title of the Invention: Method for Reducing Arc Flash Protection Level of Circuit Breaker and Circuit Breaker)
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to minimize ultraviolet rays and visible light among special disturbances generated by ultraviolet rays, visible rays, and arc flashes, An object of the present invention is to provide an arc flash detection system using a prism.
According to an aspect of the present invention, there is provided an arc flash detection system using a prism, including: a housing including a power control panel of at least one of a high voltage switchboard, a low voltage switchboard, a motor control panel and a distribution panel; A first ultraviolet ray detecting sensor for detecting an ultraviolet ray in an arc flash which is generated in the housing, a visible light ray detecting sensor for detecting a visible ray in the arc flash generated inside the housing, And a second ultraviolet ray detecting sensor formed on the inside of the housing for detecting an ultraviolet ray region by splitting the arc flash generated in the inside of the housing through a prism at the front end, Detection from detection sensor, visible light detection sensor and instrumental current transformer And a controller for receiving a disturbance of an ultraviolet ray, a visible ray and a current and comparing and calculating disturbances of the ultraviolet rays, the visible ray and the current, and outputting a trip signal of the breaker when it is determined that an arc flash is generated, A first and a second connection unit for receiving a signal detected by the ultraviolet ray detection sensor and an interlock connection unit for interconnection of the contacts of each other in order to prevent two signals from being simultaneously inputted, A third connection unit to which a visible light detection sensor for detecting a visible light is connected, and a second connection unit to which an alarm signal for generating an alarm signal A fourth connection unit to which a disturbance signal of a current detected through the current transformer is inputted, A trip coil part for outputting a trip signal of the circuit breaker in the event of an arc and a trip level part for adjusting the level of a trip signal output through the trip coil part and a power supply part for supplying power required for the controller .
The arc flash detection system using a prism according to an embodiment of the present invention has the following effects.
First, by using a prism, ultraviolet rays and visible rays are detected in a specific disturbance caused by an arc through ultraviolet rays in a wide area and ultraviolet rays through a porter sensor, visible rays through a loop sensor, and instrumental current transformers, It is possible to minimize power equipment and human casualties.
Second, it is possible to prevent the occurrence of the secondary damage by detecting the occurrence of the arc flash at the early stage and reducing the time for determining whether or not there is an accident.
1 is a conceptual diagram schematically showing a distribution panel to which an arc flash detection system using a prism according to the present invention is applied.
2 is a block diagram showing the controller of Fig.
Figs. 3 and 4 are a front view and a rear view of the controller shown in Fig. 1; Fig.
Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
FIG. 1 is a conceptual diagram schematically showing a distribution panel to which an arc flash detection system using a prism according to the present invention is applied, FIG. 2 is a configuration diagram showing the controller of FIG. 1, Front view and rear view.
As shown in FIGS. 1 and 2, a distribution panel to which an arc flash detection system using a prism according to the present invention is applied includes a housing (not shown) including at least one power control panel of a high voltage switchboard, a low voltage switchboard, A first ultraviolet
The power control board includes a
The
The
The
The
Here, the rear surface of the
The
The visible
The instrumental current transformer 140 detects disturbances (Sag, Swell, Swing, etc.) of the voltage flowing through the
The
One end of the
Since the
The
For example, when three-phase power is output from the
When four-phase power is outputted from the
The
The
The
(Sag, Swell, Swing, etc.) of the DC voltage flowing through the
Then, the information analyzed through the
In addition, if over-current or over-voltage occurs in the
The signals detected from the first ultraviolet
A
The second ultraviolet
The output terminal of the instrumental
The
The arc signal determined through the
The
The arc flash detection system using the prism according to the present invention includes a first ultraviolet
Here, the second ultraviolet
The visible
The instrumental
The
3, the
The
delete
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments or constructions. Can be carried out within a limited range. Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.
110: housing 120: first ultraviolet detecting sensor
130: Visible light detection sensor 140: Current transformer
151: prism 152: second ultraviolet ray detection sensor
Claims (7)
A first ultraviolet ray detecting sensor for detecting an ultraviolet ray of an arc flash generated in the housing,
A visible light detecting sensor for detecting a visible light in the arc flash generated in the housing,
A current transformer for detecting a disturbance of a current generated due to an arc flash in the housing;
A second ultraviolet ray detecting sensor which is formed inside the housing and detects an ultraviolet ray region by splitting the arc flash generated in the inside of the housing through a prism at the front end, And a controller for comparing and calculating disturbances of ultraviolet rays, visible rays, and currents detected from the sensor and the current transformer for the instrument, and outputting a trip signal of the breaker when it is determined that arc flash occurs,
The controller includes first and second connecting portions for receiving signals detected by the first ultraviolet ray detecting sensor and the second ultraviolet ray detecting sensor on a rear surface thereof and first and second connecting portions for connecting the first and second connecting portions to each other, An interlock connection unit, a communication connection unit connected to an external device through a wire to perform communication, a Bluetooth communication connection unit for transmitting data via wireless communication, and a visible light detection sensor for detecting visible light A third connecting part for receiving a disturbance signal of a current detected through a current transformer for an instrument, a trip coil part for outputting a trip signal of the circuit breaker when an arc is generated, And a trip level portion for adjusting a level of a trip signal outputted through the trip coil portion,
And a power supply unit for supplying power to the controller.
Priority Applications (1)
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KR1020150133645A KR101631992B1 (en) | 2015-09-22 | 2015-09-22 | Arc flash detection system using prism |
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KR1020150133645A KR101631992B1 (en) | 2015-09-22 | 2015-09-22 | Arc flash detection system using prism |
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KR101631992B1 true KR101631992B1 (en) | 2016-06-21 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190130755A (en) * | 2018-05-15 | 2019-11-25 | 이준희 | System for detecting area of arc flash |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000346705A (en) * | 1999-06-09 | 2000-12-15 | Nissin Electric Co Ltd | Arc light detector |
KR20080057176A (en) | 2006-12-19 | 2008-06-24 | 제너럴 일렉트릭 캄파니 | Circuit breaker with adjustable arc-flash protection and wireless sensor and method of use |
KR20100042379A (en) * | 2008-10-16 | 2010-04-26 | 한국전기연구원 | Method and apparatus for measuring of arc temperature in high voltage circuit breaker |
KR101076772B1 (en) | 2009-05-26 | 2011-10-26 | 주식회사 오샘코 | Alarm device for electric shock danger in switch-board using complex sensors |
KR20130034393A (en) * | 2011-09-28 | 2013-04-05 | 한국전력공사 | Apparatus and method for isolation deterioration of gas insulated switchgear |
KR101345234B1 (en) * | 2013-09-12 | 2014-01-15 | 지투파워 (주) | Hazard diagnos apparatus and method with function of controlling approch distance in accordance with arc flash energy |
-
2015
- 2015-09-22 KR KR1020150133645A patent/KR101631992B1/en active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000346705A (en) * | 1999-06-09 | 2000-12-15 | Nissin Electric Co Ltd | Arc light detector |
KR20080057176A (en) | 2006-12-19 | 2008-06-24 | 제너럴 일렉트릭 캄파니 | Circuit breaker with adjustable arc-flash protection and wireless sensor and method of use |
KR20100042379A (en) * | 2008-10-16 | 2010-04-26 | 한국전기연구원 | Method and apparatus for measuring of arc temperature in high voltage circuit breaker |
KR101076772B1 (en) | 2009-05-26 | 2011-10-26 | 주식회사 오샘코 | Alarm device for electric shock danger in switch-board using complex sensors |
KR20130034393A (en) * | 2011-09-28 | 2013-04-05 | 한국전력공사 | Apparatus and method for isolation deterioration of gas insulated switchgear |
KR101345234B1 (en) * | 2013-09-12 | 2014-01-15 | 지투파워 (주) | Hazard diagnos apparatus and method with function of controlling approch distance in accordance with arc flash energy |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190130755A (en) * | 2018-05-15 | 2019-11-25 | 이준희 | System for detecting area of arc flash |
KR102550804B1 (en) | 2018-05-15 | 2023-06-30 | 송인관 | System for detecting area of arc flash |
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