CN105244770A - Lightning-protection power distribution cabinet - Google Patents
Lightning-protection power distribution cabinet Download PDFInfo
- Publication number
- CN105244770A CN105244770A CN201510640616.XA CN201510640616A CN105244770A CN 105244770 A CN105244770 A CN 105244770A CN 201510640616 A CN201510640616 A CN 201510640616A CN 105244770 A CN105244770 A CN 105244770A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- lightning protection
- metering device
- power distribution
- protection power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a lightning-protection power distribution cabinet, which comprises a cabinet body and cabinet doors, wherein a cabinet top which is high in middle and low in periphery is arranged at the top of the cabinet body; the cabinet doors are arranged at four surfaces of the cabinet body; the cabinet body also comprises a base, a collection device, a lightning-protection power supply circuit and a communication device; a plurality of metering devices are arranged in the cabinet body and are arranged in the power distribution cabinet; a metering device output end of each metering device is used for outputting power information; the collection device comprises a collection device output end and a collection device input end; the collection device output end is respectively connected with a metering device input end of each metering device and is used for transmitting a collection instruction to each metering device input end; the collection device input end is connected with the metering device output end of each metering device and is used for collecting the power information of each metering device; the lightning-protection power supply circuit is connected with the plurality of metering devices; and the communication device is connected with the collection device and is used for transmitting the power information collected by the collection device to external equipment.
Description
Technical field
The present invention relates to a kind of lightning protection power distribution cabinet.
Background technology
Along with the progress of science and technology, the automated system be made up of microcomputer and large scale integrated circuit device, replaces the relaying protection of conventional measurement and supervisory instrument, conventional control flow, central signal system, telemechanical screen and routine.Improve automation and intelligent level.
But; produced problem is thereupon; for the integrated circuit of microsystem; working voltage only has the three ten-day period of hot season, signal code is only microampere order; shock-resistant capacity is possessed little than electromagnetic type protective device in the past; more fragile to the tolerance of surge, particularly the transient state impact of Lightning Over-voltage can cause microsystem badly damaged, and therefore the anti-lightning strike problem of the comprehensive automation such as microsystem, computer network at present, intelligent equipment is required to incorporate in normal protection.
Summary of the invention
For the problems referred to above, the invention provides a kind of lightning protection power distribution cabinet.
For achieving the above object, lightning protection power distribution cabinet of the present invention, comprises cabinet and cabinet door, and described cabinet top is provided with the cabinet top at the bottom of middle high surrounding, and four faces of described cabinet are equipped with cabinet door; Described cabinet also comprises base; Be provided with multiple metering device in described cabinet, be arranged in described distribution box, the metering device output of each described metering device is used for output power information;
A harvester, comprising: harvester output, is connected respectively with the metering device input of each described metering device, for sending acquisition instructions to each described metering device input; Harvester input, is connected with the described metering device output of each described metering device, for gathering the described power information of described metering device;
One lightning protection power supply circuits, described multiple metering device is connected with lightning protection power supply circuits;
A communicator, is connected with described harvester, is sent to external equipment for the power information gathered by described harvester.
Further, described lightning protection power supply circuits comprise: lightning protection circuit, indicating equipment and output unit, and wherein, the input of described lightning protection circuit is connected with power-supply system, the output of described lightning protection circuit is connected with output unit, for eliminating the lightning surge voltage to being entered by power-supply system;
The first order vent unit, second level choke unit and the third level clamping unit that are connected successively is comprised in described lightning protection circuit;
Described indicating equipment is connected with lightning protection circuit, for each phase current in described lightning protection circuit Nei Mei road, voltage being shown;
The output of described output unit is connected with metering device, for powering to described metering device.
Further, described cabinet door is provided with shutter, and Open Side Down for described shutter, establishes gauze in shutter.
Further, described cabinet inside is provided with lighting device, and described lighting device comprises at least one lamp body and a push switch, and lamp body is connected with push switch.
Further, be provided with the through hole for threading and insulation cushion below described rectangular box, it is characterized in that, an earth connection is set up in the bottom of described rectangular box, described earth connection is connected to bottom described rectangular box, is used for the electrostatic on distribution box being imported in time ground release.
Further, described earth connection has been set up a unilateral diode, the positive terminal of described unilateral diode is connected with distribution box body.
Further, the cabinet door back side is provided with the interlayer of the above-below direction parallel with cabinet door, and this interlayer and cabinet door form the sandwich passage of above-below direction, and the upper port of described sandwich passage is provided with blower fan, and this fan outlet is connected in series with the upper port of described sandwich passage.
Further, described cabinet door is followed successively by internal layer, middle level and skin from inside to outside, described internal layer is from inside to outside for being respectively equipped with radiation protective layer and sealant, described middle level is the double-decker of leakproof electric layer and fireprotection layer composition, skin is high-strength insulating armour, and described cabinet outdoors portion is also provided with insulation antidetonation frame.
Further, described cabinet is provided with Intelligent indicating device, and described Intelligent indicating device comprises:
Switch, indicating device and warning device, wherein,
Described switch, for starting or stoping described indicating device;
Described indicating device, is connected with described switch, after starting at described indicating device, indicate power equipment to be in electriferous state;
Described warning device, is connected with described switch, comprises: heat sensor, alarm distance adjusting device and alarm, wherein,
Described alarm distance adjusting device, for arranging alarm distance;
Described heat sensor, for detecting the distance of thermal source and described power equipment;
Described alarm, is connected between described heat sensor and described alarm distance adjusting device, for when the distance of thermal source and described power equipment is less than described alarm distance, sends the alarm of described charged electric power apparatus.
Further, be also provided with in described cabinet:
Humidity sensor, is arranged in described cabinet to detect the real-time humidity of the inside of described cabinet;
Comparator, is connected with described humidity sensor with more described real-time humidity and default humidity;
Dehumidifier, is connected with described comparator, to dehumidify when described real-time humidity is greater than described default humidity.
Beneficial effect:
Compared with existing correlation technique, the present invention has following beneficial effect:
The present invention utilizes the lightning protection supply access be arranged in cabinet, the lightning surge voltage entered by power-supply system is carried out three grades of eliminations through first order vent unit, second level choke unit and third level clamping unit, and then lightning surge voltage can be avoided to cause damage by power-supply system to metering device.
In addition, straight-through power supply circuits and commutation circuit is also provided with in this lightning protection power distribution cabinet, when few thunderstorm season (such as winter), lightning protection circuit fault, maintenance or when maintaining, commutation circuit can by straight-through power supply circuits conducting, and disconnected by lightning protection power supply circuits, and then when can be implemented in maintenance, do not interrupt the power supply of metering device.
Accompanying drawing explanation
Fig. 1 is the structural representation of lightning protection power distribution cabinet of the present invention;
Fig. 2 is the structural representation of lightning protection circuit of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
As shown in Figure 1, the present embodiment lightning protection power distribution cabinet, comprises cabinet 1 and cabinet door 2, described cabinet 1 top is provided with the cabinet top 3 at the bottom of middle high surrounding, four faces of described cabinet 1 are respectively equipped with cabinet door 2, are provided with channel steel base 4 bottom described cabinet 1, and described channel steel base 4 inside is provided with pull-out type lifting rod 5; Being provided with bottom described cabinet 1 can through the installing hole 6 of various cable, the conveniently heat radiation of electric equipment in ring main unit.The rainwater on cabinet top 3 can be discharged by the cabinet top 3 of cabinet 1 crown center high surrounding bottom structure effectively; Cabinet 1 all around four faces is offered cabinet door 2 respectively and handled easily personnel can be carried out the installation of electrical equipment; Channel steel base 4 bottom cabinet 1 can avoid direct bottom cabinet 1 and earth surface, the moisture on ground can corrode the useful life that cabinet 1 bottom steel project rings cabinet, pull-out type lifting rod 5 can be housed in channel steel base 4 simultaneously, need only lifting rod 5 to be extracted out from channel steel base 4 during mobile ring main unit, only lifting rod 5 need be pushed channel steel base 4 after lifting terminates inner, not affect product appearance.
Be provided with multiple metering device in described cabinet, be arranged in described distribution box, the metering device output of each described metering device is used for output power information;
A harvester, comprising: harvester output, is connected respectively with the metering device input of each described metering device, for sending acquisition instructions to each described metering device input; Harvester input, is connected with the described metering device output of each described metering device, for gathering the described power information of described metering device;
One lightning protection power supply circuits, described multiple metering device is connected with lightning protection power supply circuits;
A communicator, is connected with described harvester, is sent to external equipment for the power information gathered by described harvester.
Cabinet is arranged between metering device and power-supply system usually, and like this when there is thunderbolt, first the lightning current of power system transient releases into ground by this, induction overvoltage is limited in the level that equipment can bear, from superpotential impact simultaneously.
As shown in Figure 2, lightning protection power supply circuits 1 comprise: lightning protection circuit, indicating circuit and output circuit, and wherein, the input of described lightning protection circuit is connected with power-supply system, the output of described lightning protection circuit is connected with output circuit, for eliminating the lightning surge voltage to being entered by power-supply system.
Comprise in this lightning protection circuit: first order leadage circuit, second level choked flow circuit and third level clamp circuit, wherein, first order leadage circuit, second level choked flow circuit and third level clamp circuit three are electrically connected successively, to realize carrying out three grades of protection to thunderbolt voltage surge.
When protecting thunder and lightning, in first order leadage circuit, preset voltage threshold, when external voltage exceedes this voltage threshold, in first order leadage circuit release element can in 25ns instantaneous thunder-strike current of releasing over the ground; The circuit of second level choked flow simultaneously continues through for stoping thunder-strike current; Last third level clamping unit passes through for limiting too high lightning surge voltage, and is clamped in safety value by output voltage.
The output of described output circuit 13 is connected with metering device, for powering to metering device 300.In addition, these lightning protection power supply circuits can also normal power supply while carrying out lightning Protection.
In addition, conveniently operating personnel understand the operating state in lightning protection circuit, and can also arrange in this lightning protection circuit: indicating circuit, indicating circuit is connected with lightning protection circuit, for each phase current in described lightning protection circuit Nei Mei road, voltage being shown.
In order to increase the lightning protection properties of this lightning protection power distribution cabinet, the ground wire of lightning protection circuit can also be connected with the system ground wire of metering device, namely make the ground wire of lightning protection circuit and the system ground wire of metering device carry out equipotential link, the electric power system of all metering devices is on same foundation current potential.
This lightning protection power distribution cabinet that the embodiment of the present application provides, utilize the lightning protection supply access be arranged in cabinet, the lightning surge voltage entered by power-supply system is carried out three grades of eliminations through first order vent unit, second level choke unit and third level clamping unit, and then lightning surge voltage can be avoided to cause damage by power-supply system to metering device.
Embodiment 2
The present embodiment lightning protection power distribution cabinet, on the basis of embodiment 1, described cabinet door is provided with shutter, and Open Side Down for described shutter, establishes gauze in shutter.Described shutter ventilation louver reduces operating ambient temperature in distribution box effectively, for in-box electric appliance element provides good operational environment; Simultaneously in order to prevent small worm etc. from crawling in distribution box by shutter, the present invention establishes gauze inside shutter, and can effectively prevent entering of small worm etc., the trouble free service for distribution box provides effective guarantee.
Embodiment 3
The present embodiment lightning protection power distribution cabinet, on the basis of embodiment 1, add an earth connection in the bottom of casing, described earth connection is connected to bottom the rectangular box of distribution box, is used for the electrostatic on distribution box being imported in time ground release.Owing to there being many charged electric wires bottom distribution box, oppositely pass to the rectangular box of distribution box from connect earth connection to overcome electric current when part electric wire leaks electricity, produce Danger Electric shock risk, the present invention has also set up a diode on ground path, the positive terminal of this diode is connected with distribution box body, when accumulation on distribution box body has electrostatic charge, and diode current flow, electrostatic charge is conducted to ground connection place, decreases the harm of electrostatic to human body; Make use of the one way general character energy that diode has simultaneously, stopped ground line current reverse flow above distribution box shell, completely eliminated the electric shock accidents caused because earth connection is charged.
In the various embodiments described above, described cabinet inside is provided with lighting device, and described lighting device comprises at least one lamp body and a push switch, and lamp body is connected with push switch.Owing to adopting technique scheme, staff carries out the operations such as installation, maintenance during to power distribution cabinet inner facility, in power distribution cabinet, daylighting is good, without the need to carrying additional light source, more convenient to operate; There is structure simple, easy to maintenance, the advantages such as processing cost is low.
In the various embodiments described above, the cabinet door back side is provided with the interlayer of the above-below direction parallel with cabinet door, and this interlayer and cabinet door form the sandwich passage of above-below direction, and the upper port of described sandwich passage is provided with blower fan, and this fan outlet is connected in series with the upper port of described sandwich passage.
In the various embodiments described above, described cabinet door is followed successively by internal layer, middle level and skin from inside to outside, described internal layer is from inside to outside for being respectively equipped with radiation protective layer and sealant, described middle level is the double-decker of leakproof electric layer and fireprotection layer composition, skin is high-strength insulating armour, and described cabinet outdoors portion is also provided with insulation antidetonation frame.
In the various embodiments described above, be provided with Intelligent indicating device in described cabinet, described Intelligent indicating device comprises:
Switch, indicating device and warning device, wherein,
Described switch, for starting or stoping described indicating device;
Described indicating device, is connected with described switch, after starting at described indicating device, indicate power equipment to be in electriferous state;
Described warning device, is connected with described switch, comprises: heat sensor, alarm distance adjusting device and alarm, wherein,
Described alarm distance adjusting device, for arranging alarm distance;
Described heat sensor, for detecting the distance of thermal source and described power equipment;
Described alarm, is connected between described heat sensor and described alarm distance adjusting device, for when the distance of thermal source and described power equipment is less than described alarm distance, sends the alarm of described charged electric power apparatus.
In the various embodiments described above, be also provided with in described cabinet:
Humidity sensor, is arranged in described cabinet to detect the real-time humidity of the inside of described cabinet;
Comparator, is connected with described humidity sensor with more described real-time humidity and default humidity;
Dehumidifier, is connected with described comparator, to dehumidify when described real-time humidity is greater than described default humidity.
Humidity sensor is arranged in cabinet, can detect the real-time humidity of the inside of cabinet.Comparator is connected with humidity sensor, and the signal of the real-time humidity in the cabinet detected is issued comparator by humidity sensor, and the real-time humidity in the cabinet detected by humidity sensor in a comparator and default humidity compare.When real-time humidity is greater than default humidity, comparator sends dehumidifying signal.Dehumidifier is connected with comparator, dehumidifies when dehumidifier receives dehumidifying signal.Said structure adopts the air humidity in automatic control cabinet body, effectively regulates the air humidity of the inside of cabinet, and then effectively ensures the safe operation of controller switching equipment, improves the reliability of power supply, ensures that the people can not be subject to economic loss.Meanwhile, said structure adopts the mode automatically controlled to replace manually operated mode, effectively ensures that operations staff can not come to harm, effectively reduces the working strength of operations staff.
The present invention be should be understood that; above-described embodiment; further detailed description has been carried out to object of the present invention, technical scheme and beneficial effect; these are only embodiments of the invention; be not intended to limit the present invention, every within spiritual principles of the present invention, done any amendment, equivalent replacement, improvement etc.; all should be included within protection scope of the present invention, the protection range that protection scope of the present invention should define with claim is as the criterion.
Claims (10)
1. a lightning protection power distribution cabinet, is characterized in that: comprise cabinet and cabinet door, and described cabinet top is provided with the cabinet top at the bottom of middle high surrounding, and four faces of described cabinet are equipped with cabinet door; Described cabinet also comprises base; Be provided with multiple metering device in described cabinet, be arranged in described distribution box, the metering device output of each described metering device is used for output power information;
A harvester, comprising: harvester output, is connected respectively with the metering device input of each described metering device, for sending acquisition instructions to each described metering device input; Harvester input, is connected with the described metering device output of each described metering device, for gathering the described power information of described metering device;
One lightning protection power supply circuits, described multiple metering device is connected with lightning protection power supply circuits;
A communicator, is connected with described harvester, is sent to external equipment for the power information gathered by described harvester.
2. lightning protection power distribution cabinet according to claim 1, it is characterized in that: described lightning protection power supply circuits comprise: lightning protection circuit, indicating equipment and output unit, wherein, the input of described lightning protection circuit is connected with power-supply system, the output of described lightning protection circuit is connected with output unit, for eliminating the lightning surge voltage to being entered by power-supply system;
The first order vent unit, second level choke unit and the third level clamping unit that are connected successively is comprised in described lightning protection circuit;
Described indicating equipment is connected with lightning protection circuit, for each phase current in described lightning protection circuit Nei Mei road, voltage being shown;
The output of described output unit is connected with metering device, for powering to described metering device.
3. lightning protection power distribution cabinet according to claim 1, is characterized in that: described cabinet door is provided with shutter, and Open Side Down for described shutter, establishes gauze in shutter.
4. lightning protection power distribution cabinet according to claim 1, is characterized in that: described cabinet inside is provided with lighting device, and described lighting device comprises at least one lamp body and a push switch, and lamp body is connected with push switch.
5. lightning protection power distribution cabinet according to claim 1, it is characterized in that: below described rectangular box, be provided with the through hole for threading and insulation cushion, it is characterized in that, an earth connection is set up in the bottom of described rectangular box, described earth connection is connected to bottom described rectangular box, is used for the electrostatic on distribution box being imported in time ground release.
6. lightning protection power distribution cabinet according to claim 5, is characterized in that: described earth connection has been set up a unilateral diode, the positive terminal of described unilateral diode is connected with distribution box body.
7. lightning protection power distribution cabinet according to claim 1, it is characterized in that: the cabinet door back side is provided with the interlayer of the above-below direction parallel with cabinet door, this interlayer and cabinet door form the sandwich passage of above-below direction, the upper port of described sandwich passage is provided with blower fan, and this fan outlet is connected in series with the upper port of described sandwich passage.
8. lightning protection power distribution cabinet according to claim 1, it is characterized in that: described cabinet door is followed successively by internal layer, middle level and skin from inside to outside, described internal layer is from inside to outside for being respectively equipped with radiation protective layer and sealant, described middle level is the double-decker of leakproof electric layer and fireprotection layer composition, skin is high-strength insulating armour, and described cabinet outdoors portion is also provided with insulation antidetonation frame.
9. lightning protection power distribution cabinet according to claim 1, it is characterized in that: described cabinet is provided with Intelligent indicating device, described Intelligent indicating device comprises:
Switch, indicating device and warning device, wherein,
Described switch, for starting or stoping described indicating device;
Described indicating device, is connected with described switch, after starting at described indicating device, indicate power equipment to be in electriferous state;
Described warning device, is connected with described switch, comprises: heat sensor, alarm distance adjusting device and alarm, wherein,
Described alarm distance adjusting device, for arranging alarm distance;
Described heat sensor, for detecting the distance of thermal source and described power equipment;
Described alarm, is connected between described heat sensor and described alarm distance adjusting device, for when the distance of thermal source and described power equipment is less than described alarm distance, sends the alarm of described charged electric power apparatus.
10. lightning protection power distribution cabinet according to claim 1, is characterized in that: be also provided with in described cabinet:
Humidity sensor, is arranged in described cabinet to detect the real-time humidity of the inside of described cabinet;
Comparator, is connected with described humidity sensor with more described real-time humidity and default humidity;
Dehumidifier, is connected with described comparator, to dehumidify when described real-time humidity is greater than described default humidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640616.XA CN105244770A (en) | 2015-09-30 | 2015-09-30 | Lightning-protection power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640616.XA CN105244770A (en) | 2015-09-30 | 2015-09-30 | Lightning-protection power distribution cabinet |
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| CN105244770A true CN105244770A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510640616.XA Pending CN105244770A (en) | 2015-09-30 | 2015-09-30 | Lightning-protection power distribution cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107949211A (en) * | 2017-12-12 | 2018-04-20 | 天津联拓科技有限公司 | Use the integrated work(figure collecting device of wireless power |
| CN109066371A (en) * | 2018-09-25 | 2018-12-21 | 天津市凯源新能电气有限公司 | A kind of transformation cabinet dehumidification device |
| CN109755876A (en) * | 2019-03-14 | 2019-05-14 | 合肥格威特电气技术有限公司 | A kind of reinforced anticreep three phase current lightning protection case |
| CN113468789A (en) * | 2021-09-06 | 2021-10-01 | 广东电网有限责任公司中山供电局 | Temperature rise simulation method for ground wire-wire clamp assembly under lightning stroke effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109066371A (en) * | 2018-09-25 | 2018-12-21 | 天津市凯源新能电气有限公司 | A kind of transformation cabinet dehumidification device |
| CN109755876A (en) * | 2019-03-14 | 2019-05-14 | 合肥格威特电气技术有限公司 | A kind of reinforced anticreep three phase current lightning protection case |
| CN113468789A (en) * | 2021-09-06 | 2021-10-01 | 广东电网有限责任公司中山供电局 | Temperature rise simulation method for ground wire-wire clamp assembly under lightning stroke effect |
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Application publication date: 20160113 |