CN108966559A - A kind of detection protection cabinets - Google Patents
A kind of detection protection cabinets Download PDFInfo
- Publication number
- CN108966559A CN108966559A CN201811000843.6A CN201811000843A CN108966559A CN 108966559 A CN108966559 A CN 108966559A CN 201811000843 A CN201811000843 A CN 201811000843A CN 108966559 A CN108966559 A CN 108966559A
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- mounting plate
- fixedly connected
- cabinet
- detection protection
- 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
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
Abstract
The invention discloses a kind of detection protection cabinets, including cabinet body, the cabinet body front surface is fixedly connected with cabinet lid by holding screw, rear end is equipped with sliding rail in cabinet body, the sliding rail front end slidably connects mounting plate by the sliding block of inside setting, on mounting plate front surface, lower part has been respectively fixedly connected with fuse and cable concentrator, current transformer is fixedly connected in the middle part of mounting plate front surface, the mounting plate is close to the upper of middle section, lower part has been respectively fixedly connected with Surge Protector and voltage transformer, on the cabinet body rear end, lower part is respectively welded spacer block and spool, top and the bottom on the outside of spacer block are provided with one group of sucker, before the spacer block, it is opened up in the middle part of rear end fluted, the inside grooves are connected with telescopic rod.The present invention has the advantages that self-test, self-protection, easy to use, stable structure by the way that anti-electromagnetic layer, voltage transformer, current transformer, Surge Protector, fuse, sucker and Telescopic rod structure is arranged.
Description
Technical field
The present invention relates to electrical cabinet technical field, specially a kind of detection protection cabinets.
Background technique
Electrical cabinet is the cabinet being process by steel material for protecting component to work normally, electrical cabinet making material one
As be divided into hot rolled steel plate and two kinds of cold-rolled steel sheet, cold-rolled steel sheet is soft with respect to hot rolled steel plate more material, is more suitable for the system of electrical cabinet
Make, electrical cabinet is widely used to be mainly used for chemical industry, and environmental protection industry (epi), electric system, metallurgical system is industrial, and nuclear power industry disappears
Anti- security monitoring, transportation industry etc..
But there are deficiencies below for the prior art:
1, cabinet body does not have detection and the safeguard function of itself, easily causes the damage of cabinet body, brings the increase of use cost；
2, cabinet body does not have anti-electromagnetism and height adjustment, and internal inconvenient maintenance and structure are fixed unstable.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of detection protection cabinets, solves and cabinet body exists in the prior art not
Have itself detection and safeguard function；Do not have anti-electromagnetism and height adjustment；Inconvenient maintenance and with structure is fixed unstable asks
Topic.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of detection protection cabinets, including cabinet body, the cabinet body is just
Surface is fixedly connected with cabinet lid by holding screw, and cabinet body surface is uniformly coated with anti-electromagnetic layer, and the cabinet lid surface is upper and lower
Portion is respectively arranged with protective cover and heat release hole, and protective cover internal upper part two sides are inlayed respectively is connected with current instrument and voltage instrument
Table, lower part middle section is equipped with indicator light in the protective cover, and rear end is equipped with sliding rail in the cabinet body, and the sliding rail front end passes through
The sliding block of inside setting slidably connects mounting plate, mounting plate front surface upper and lower part be fixedly connected with respectively fuse and
Cable concentrator, the cable concentrator surface are connected with box cover, and cable concentrator upper end two sides are provided with string holes, the mounting plate front surface
Middle part is fixedly connected with current transformer, and the mounting plate is fixedly connected with Surge Protector close to the upper and lower part in middle section respectively
And voltage transformer, cabinet body rear end upper and lower part are welded with spacer block and spool respectively, the top and the bottom setting on the outside of the spacer block
There is one group of sucker, open up fluted in the middle part of the spacer block front and back ends, the inside grooves are connected with telescopic rod.
Preferably, the cabinet body top center position is fixedly connected with cover board by fastening bolt.
Preferably, cabinet lid front surface central location upper and lower part is equipped with microprocessor and button respectively.
Preferably, the voltage transformer, current transformer, Surge Protector, pass through electrical property of twisted pair between fuse
Connection.
Preferably, mounting plate bottom end two sides are welded with one group of fixture block, and bottom end two sides open up in fixture block and cabinet body
Card slot socket connection.
Preferably, cabinet body bottom end two sides are fixedly connected with one group of iron block, and iron block lower end is connected by screw flight
There is support.
(3) beneficial effect
The present invention provides a kind of detection protection cabinets, have it is following the utility model has the advantages that
(1) present invention passes through setting microprocessor, indicator light, current transformer, voltage transformer, fuse and surge protection
Device has the effect of self-test and self-protection, solves detection and safeguard function that cabinet body does not have itself, easily causes cabinet body
The problem of damaging, use cost is brought to increase, during cabinet body use, the front end of mounting plate is successively fixed from top to bottom to be connected
It is connected to fuse, Surge Protector, current transformer and voltage transformer, when electric current exceeds specified value, fuse is utilized certainly
The heat that body generates makes melt fuse, disconnecting circuit, realizes the protection to circuit, Surge Protector is to indirect thunder and lightning and directly
The surge of effects of lightning or other instantaneous overvoltages is protected, and then realizes the protective action to cabinet body, meanwhile, it is mutual using voltage
Sensor and current transformer carry out detection effect to the voltage and current of interior of the cabinet circuit, by voltage meter and current instrument
The display effect for realizing voltage and current in interior of the cabinet circuit, when interior of the cabinet current or voltage breaks down, by micro-
Reason device carries out reminding effect by indicator light by processing.
(2) present invention has anti-electromagnetism, height by the way that anti-electromagnetic layer, screw rod, sliding rail, sliding block, sucker and telescopic rod is arranged
It adjusts, the effect of stable structure, solves cabinet body and do not have anti-electromagnetism and height adjustment, internal maintenance inconvenience and structure are fixed not
Steady problem, in cabinet body bottom end, the lower thread of iron block is connected with screw rod, when the height of cabinet body is adjusted, carries out to screw rod inverse
The turning effort of hour hands is realized and is acted on the height adjustment of cabinet body, and is uniformly coated with anti-electromagnetic layer on the surface of cabinet body, is realized
To the anti-electromagnetic action of cabinet body, electromagnetism is avoided to damage interior of the cabinet circuit, the normal use of device is affected, to cabinet body
When repairing operation, fastening bolt is unscrewed, cover board is opened by the sliding of sliding block on the slide rail, mounting plate is carried out upwards
Pulling function, convenient for repairing operation to interior of the cabinet, meanwhile, it is welded with spacer block in the middle part of cabinet body rear end, is protected using spacer block
The interval between cabinet body and wall is held, cabinet body and wall is avoided to carry out hard collision, causes the damage of cabinet body, and in the outer of spacer block
Side is equipped with sucker, and the front and rear ends of spacer block are provided with telescopic rod, by the suction-operated of sucker and wall and telescopic rod with
The conflict of earth's surface acts on, and realizes the stability of cabinet body structure.
Detailed description of the invention
Fig. 1 is schematic elevation view of the present invention；
Fig. 2 is schematic internal view of the present invention；
Fig. 3 is schematic side view of the present invention.
In figure: 1, protective cover；2, current instrument；3, microprocessor；4, heat release hole；5, iron block；6, support；7, spiral shell is fastened
Bolt；8, cover board；9, cabinet body；10, cabinet lid；11, holding screw；12, voltage meter；13, indicator light；14, button；15, screw rod；
16, fuse；17, sliding rail；18, mounting plate；19, voltage transformer；20, string holes；21, box cover；22, card slot；23, sliding block；24,
Twisted pair；25, Surge Protector；26, current transformer；27, cable concentrator；28, fixture block；29, anti-electromagnetic layer；30, sucker；31,
Groove；32, spacer block；33, telescopic rod；34, spool.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1-3, the present invention provides a kind of technical solution: a kind of detection protection cabinets, including cabinet body 9, the positive table of cabinet body 9
Face is fixedly connected with cabinet lid 10 by holding screw 11, and 9 surface of cabinet body is uniformly coated with anti-electromagnetic layer 29, in 9 top of cabinet body
Centre position is fixedly connected with cover board 8 by fastening bolt 7, and 10 surface upper and lower part of cabinet lid is provided with protective cover 1 and heat release hole respectively
4,10 front surface central location upper and lower part of cabinet lid is equipped with microprocessor 3 and button 14,3 model of microprocessor respectively
MCS51,1 internal upper part two sides of protective cover are inlayed respectively is connected with current instrument 2 and voltage meter 12,2 model of current instrument
DT4253,12 model DDVIP40 of voltage meter, lower part middle section is equipped with indicator light 13,9 bottom end two sides of cabinet body in protective cover 1
It is fixedly connected with one group of iron block 5, and 5 lower end of iron block is threaded with support 6 by screw rod 15, rear end is equipped with cunning in cabinet body 9
Rail 17,17 front end of sliding rail slidably connect mounting plate 18 by the sliding block 23 of internal setting, and 18 bottom end two sides of mounting plate are welded with
One group of fixture block 28, and the socket of card slot 22 that bottom end two sides open up in fixture block 28 and cabinet body 9 connects, during 9 use of cabinet body,
The front end of mounting plate 18, which is from top to bottom fixedly connected sequentially, fuse 16, Surge Protector 25, current transformer 26 and voltage
Mutual inductor 19, when electric current exceeds specified value, fuse 16 makes melt fuse using the heat that itself is generated, disconnecting circuit,
Realize the protection to circuit, Surge Protector 25 carries out the surge of indirect thunder and lightning and direct effects of lightning or other instantaneous overvoltages
Protection, and then realize the protective action to cabinet body 9, meanwhile, using voltage transformer 19 and current transformer 26, in cabinet body 9
The voltage and current of portion's circuit carries out detection effect, realizes voltage in 9 internal circuit of cabinet body by voltage meter 12 and current instrument 2
Display with electric current acts on, and when 9 internal current of cabinet body or voltage failure, passes through instruction by processing by microprocessor 3
Lamp 13 carries out reminding effect, and 18 front surface upper and lower part of mounting plate is fixedly connected with fuse 16 and cable concentrator 27, fuse respectively
16 model RX1,27 surface of cable concentrator are connected with box cover 21, and 27 upper end two sides of cable concentrator are provided with string holes 20, and mounting plate 18 is just
Surface middle part is fixedly connected with current transformer 26, and 26 model ZDKCT38M of current transformer, mounting plate 18 is close to middle section
Upper and lower part is fixedly connected with Surge Protector 25 and voltage transformer 19,19 model JDZ11 of voltage transformer, surge respectively
25 model M80B4 of protector, voltage transformer 19, current transformer 26, Surge Protector 25, between fuse 16 by double
Twisted wire 24 is electrically connected, and 9 rear end upper and lower part of cabinet body is welded with spacer block 32 and spool 34 respectively, and the top and the bottom in 32 outside of spacer block are set
It is equipped with one group of sucker 30, opens up fluted 31 in the middle part of 32 front and back ends of spacer block, 31 internal activity of groove is connected with telescopic rod 33,
The lower thread of 9 bottom end iron block 5 of cabinet body is connected with screw rod 15, when the height of cabinet body 9 is adjusted, carries out counterclockwise to screw rod 15
Turning effort, realize and the height adjustment of cabinet body 9 acted on, and be uniformly coated with anti-electromagnetic layer 29 on the surface of cabinet body 9, realize
To the anti-electromagnetic action of cabinet body 9, avoids electromagnetism from damaging 9 internal circuit of cabinet body, the normal use of device is affected, to cabinet
When body 9 repairs operation, fastening bolt 7 is unscrewed, opens cover board 8 by sliding of the sliding block 23 on sliding rail 17, to mounting plate
18 carry out upward pulling function, convenient for repairing operation inside cabinet body 9, meanwhile, be welded in the middle part of 9 rear end of cabinet body every
Block 32 keeps the interval between cabinet body 9 and wall using spacer block 32, avoids cabinet body 9 and wall from carrying out hard collision, causes cabinet body
9 damage, and sucker 30 is installed in the outside of spacer block 32, the front and rear ends of cabinet spacer block 32 are provided with telescopic rod 31, pass through
The conflict of the suction-operated of sucker 30 and wall and telescopic rod 31 and earth's surface acts on, and realizes the stability of 9 structure of cabinet body.
Working principle: during 9 use of cabinet body, the front end of mounting plate 18 is from top to bottom fixedly connected sequentially and has fusing
Device 16, Surge Protector 25, current transformer 26 and voltage transformer 19, when electric current exceeds specified value, fuse 16 is utilized
The heat itself generated makes melt fuse, disconnecting circuit, realizes protection to circuit, Surge Protector 25 to indirect thunder and lightning and
The surge of direct effects of lightning or other instantaneous overvoltages is protected, and then realizes the protective action to cabinet body 9, meanwhile, it utilizes
Voltage transformer 19 and current transformer 26 carry out detection effect to the voltage and current of 9 internal circuit of cabinet body, by voltage meter
12 and current instrument 2 realize 9 internal circuit of cabinet body in voltage and current display effect, when 9 internal current of cabinet body or voltage go out
When existing failure, reminding effect is carried out by indicator light 13 by processing by microprocessor 3, and in the lower end of 9 bottom end iron block 5 of cabinet body
It is threaded with screw rod 15, when the height of cabinet body 9 is adjusted, turning effort counterclockwise is carried out to screw rod 15, is realized to cabinet
The height adjustment of body 9 acts on, and is uniformly coated with anti-electromagnetic layer 29 on the surface of cabinet body 9, realizes and makees to the anti-electromagnetism of cabinet body 9
With avoiding electromagnetism from damaging 9 internal circuit of cabinet body, affect the normal use of device, repair operation to cabinet body 9
When, fastening bolt 7 is unscrewed, cover board 8 is opened by sliding of the sliding block 23 on sliding rail 17, upward pulling is carried out to mounting plate 18
Effect, convenient for repairing operation inside cabinet body 9, meanwhile, it is welded with spacer block 32 in the middle part of 9 rear end of cabinet body, utilizes spacer block 32
Keep the interval between cabinet body 9 and wall, cabinet body 9 and wall avoided to carry out hard collision, cause the damage of cabinet body 9, and every
The outside of block 32 is equipped with sucker 30, and the front and rear ends of cabinet spacer block 32 are provided with telescopic rod 31, passes through sucker 30 and wall
The conflict of suction-operated and telescopic rod 31 and earth's surface acts on, and realizes the stability of 9 structure of cabinet body.
It can to sum up obtain, the present invention is by being arranged anti-electromagnetic layer 29, screw rod 15, voltage transformer 19, current transformer 26, wave
Surge protector 25,33 structure of fuse 16, sucker 30 and telescopic rod solve and cabinet body exists in the prior art do not have itself
Detection and safeguard function；Do not have anti-electromagnetism and height adjustment；Inconvenient maintenance and with the fixed unstable problem of structure.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of detection protection cabinets, including cabinet body (9), it is characterised in that: cabinet body (9) front surface passes through holding screw (11)
It is fixedly connected with cabinet lid (10), and cabinet body (9) surface is uniformly coated with anti-electromagnetic layer (29), cabinet lid (10) surface is upper and lower
Portion is respectively arranged with protective cover (1) and heat release hole (4), and protective cover (1) the internal upper part two sides are inlayed respectively is connected with electric current instrument
Table (2) and voltage meter (12), the interior lower part middle section of protective cover (1) are equipped with indicator light (13), the interior rear end of the cabinet body (9)
It is equipped with sliding rail (17), sliding rail (17) front end slidably connects mounting plate (18), institute by the sliding block (23) of internal setting
It states mounting plate (18) front surface upper and lower part and is fixedly connected with fuse (16) and cable concentrator (27), the cable concentrator (27) respectively
Surface is connected with box cover (21), and cable concentrator (27) the upper end two sides are provided with string holes (20), mounting plate (18) front surface
Middle part is fixedly connected with current transformer (26), and the mounting plate (18) is fixedly connected with wave close to the upper and lower part in middle section respectively
Surge protector (25) and voltage transformer (19), cabinet body (9) the rear end upper and lower part are welded with spacer block (32) and spool respectively
(34), the top and the bottom on the outside of the spacer block (32) are provided with one group of sucker (30), offer in the middle part of spacer block (32) front and back ends
Groove (31), groove (31) internal activity are connected with telescopic rod (33).
2. a kind of detection protection cabinets according to claim 1, it is characterised in that: cabinet body (9) top center position is logical
It crosses fastening bolt (7) and is fixedly connected with cover board (8).
3. a kind of detection protection cabinets according to claim 1, it is characterised in that: cabinet lid (10) the front surface central location
Upper and lower part is equipped with microprocessor (3) and button (14) respectively.
4. a kind of detection protection cabinets according to claim 1, it is characterised in that: the voltage transformer (19), electric current are mutual
Sensor (26), Surge Protector (25) are electrically connected by twisted pair (24) between fuse (16).
5. a kind of detection protection cabinets according to claim 1, it is characterised in that: mounting plate (18) the bottom end two sides welding
There is one group of fixture block (28), and card slot (22) socket that fixture block (28) and cabinet body (9) interior bottom end two sides open up connects.
6. a kind of detection protection cabinets according to claim 1, it is characterised in that: cabinet body (9) the bottom end two sides are fixed to be connected
It is connected to one group of iron block (5), and iron block (5) lower end is threaded with support (6) by screw rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000843.6A CN108966559A (en) | 2018-08-30 | 2018-08-30 | A kind of detection protection cabinets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000843.6A CN108966559A (en) | 2018-08-30 | 2018-08-30 | A kind of detection protection cabinets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108966559A true CN108966559A (en) | 2018-12-07 |
Family
ID=64474567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811000843.6A Pending CN108966559A (en) | 2018-08-30 | 2018-08-30 | A kind of detection protection cabinets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108966559A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205304065U (en) * | 2015-09-15 | 2016-06-08 | 天津市华捷电力设备制造有限公司 | Liftable rotatory dustproof heat dissipation voltage transformer cabinet that takes precautions against earthquakes |
| CN205680973U (en) * | 2016-06-16 | 2016-11-09 | 成都金涛电气设备制造有限公司 | A kind of distribution transformer integrated power distribution cabinet |
| CN205693170U (en) * | 2016-06-27 | 2016-11-16 | 国网山东省电力公司博兴县供电公司 | A kind of high-voltage electricity stealing prevention metering device with surge protection |
| CN206401744U (en) * | 2017-01-19 | 2017-08-11 | 惠州市华科电力设备有限公司 | It is a kind of that there is the high pressure PT cabinets for detecting voltage and defencive function |
| CN107332135A (en) * | 2017-07-24 | 2017-11-07 | 合肥市施能电子科技有限公司 | A kind of low-voltage distribution cabinet |
| CN107911960A (en) * | 2017-09-27 | 2018-04-13 | 常州信息职业技术学院 | A kind of special machine cabinet of computer application system |
| CN207705658U (en) * | 2017-12-26 | 2018-08-07 | 泌阳县豫新牧业有限公司 | A kind of cultivation switchgear convenient for adjusting |
| CN207753297U (en) * | 2018-01-17 | 2018-08-21 | 华川建设集团有限公司 | Low-pressure electric cabinet |
| CN208971882U (en) * | 2018-08-30 | 2019-06-11 | 遵义长征电器设备有限责任公司 | A kind of detection protection cabinets |
-
2018
- 2018-08-30 CN CN201811000843.6A patent/CN108966559A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205304065U (en) * | 2015-09-15 | 2016-06-08 | 天津市华捷电力设备制造有限公司 | Liftable rotatory dustproof heat dissipation voltage transformer cabinet that takes precautions against earthquakes |
| CN205680973U (en) * | 2016-06-16 | 2016-11-09 | 成都金涛电气设备制造有限公司 | A kind of distribution transformer integrated power distribution cabinet |
| CN205693170U (en) * | 2016-06-27 | 2016-11-16 | 国网山东省电力公司博兴县供电公司 | A kind of high-voltage electricity stealing prevention metering device with surge protection |
| CN206401744U (en) * | 2017-01-19 | 2017-08-11 | 惠州市华科电力设备有限公司 | It is a kind of that there is the high pressure PT cabinets for detecting voltage and defencive function |
| CN107332135A (en) * | 2017-07-24 | 2017-11-07 | 合肥市施能电子科技有限公司 | A kind of low-voltage distribution cabinet |
| CN107911960A (en) * | 2017-09-27 | 2018-04-13 | 常州信息职业技术学院 | A kind of special machine cabinet of computer application system |
| CN207705658U (en) * | 2017-12-26 | 2018-08-07 | 泌阳县豫新牧业有限公司 | A kind of cultivation switchgear convenient for adjusting |
| CN207753297U (en) * | 2018-01-17 | 2018-08-21 | 华川建设集团有限公司 | Low-pressure electric cabinet |
| CN208971882U (en) * | 2018-08-30 | 2019-06-11 | 遵义长征电器设备有限责任公司 | A kind of detection protection cabinets |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208971882U (en) | A kind of detection protection cabinets | |
| CN206878459U (en) | A kind of electric-power metering comprehensive protection device | |
| CN108966559A (en) | A kind of detection protection cabinets | |
| CN110850336A (en) | Intelligent grounding monitoring device | |
| CN207638170U (en) | A kind of safety protection device of low-voltage distribution cabinet | |
| CN207265242U (en) | A kind of substation grounding terminal | |
| CN206506186U (en) | A kind of adjustable distribution box | |
| CN206211942U (en) | One kind exchange header box | |
| CN208655337U (en) | A kind of integrated generator group neutral-point grounding resistance cabinet | |
| CN204154772U (en) | City illumination energy effect system centralized detection table case | |
| CN210640070U (en) | Indoor automatic tripping lightning arrester | |
| CN210325430U (en) | Anti-theft device for distribution transformer | |
| CN107677910A (en) | One kind is based on security protection distribution intelligent monitoring device | |
| CN208939899U (en) | Copper-line device is isolated in protection against electric shock suitable for lightning-proof header box | |
| CN209119804U (en) | Electric furnace overvoltage energy absorption protective device | |
| CN205945053U (en) | Route selection of arc extinction harmonic elimination and overvoltage protection | |
| CN106300317A (en) | A kind of extinguishing arc, extinguishing harmony, selecting line and overvoltage protection | |
| CN102345331A (en) | Construction method of solar energy lightning protection facility on building roof | |
| CN205159830U (en) | Novel JP cabinet | |
| CN205157582U (en) | GIS and main neutral point arrester on -line monitoring ware installation device that becomes | |
| CN206594239U (en) | A kind of screening clothing shield effectiveness detection means | |
| CN205944578U (en) | Simple and easy type PDU equipment | |
| CN211507346U (en) | Current transformer convenient to installation is fixed | |
| CN205944814U (en) | Explosion -proof intelligent power distribution case | |
| CN209822456U (en) | Portable transformer on-load tap-changer fault monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |