CN109274018A - The terminal box of transformer substation of tide is driven in a kind of heating - Google Patents
The terminal box of transformer substation of tide is driven in a kind of heating Download PDFInfo
- Publication number
- CN109274018A CN109274018A CN201811124140.4A CN201811124140A CN109274018A CN 109274018 A CN109274018 A CN 109274018A CN 201811124140 A CN201811124140 A CN 201811124140A CN 109274018 A CN109274018 A CN 109274018A
- Authority
- CN
- China
- Prior art keywords
- motor
- cabinet
- side baffle
- terminal box
- module
- 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
- 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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in 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
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- 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
- H02B1/46—Boxes; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Air Conditioning Control Device (AREA)
- Drying Of Gases (AREA)
Abstract
The invention belongs to intelligent substation component technology fields, the terminal box of transformer substation of tide is driven in especially a kind of heating, including cabinet, cool-down dehumidification device in cabinet is set, cabinet includes two outer side baffles, top plate and bottom plate, outside baffle inner wall is provided with inner side baffle by connecting elements, air port is preset between inner side baffle upper end and top plate, air duct is formed between inner side baffle and outer side baffle, cool-down dehumidification device includes motor, transmission mechanism, guiding mechanism, blower and heater, motor is arranged in air duct, it is connected to outside the lower end in air duct and cabinet, multiple air inlets are set on bottom plate.The present invention carries out special designing for the position of the motor easily to generate heat, it is installed in and is arranged in air duct, cooled down using the air of flowing to motor, on the one hand can reduce the problem in cabinet, still further aspect carries out wind cooling temperature lowering to motor, delays motor ages phenomenon.
Description
Technical field
The invention belongs to intelligent substation component technology field, the terminal box of transformer substation of tide is driven in especially a kind of heating.
Background technique
Wiring terminal box is a kind of switching construction line, is labeled to branched line, is provided conveniently for wiring and the line inspection
A kind of interface arrangement.In some cases, some more special and installation settings more can be had convenient for constructing and debugging
The product such as short circuit isolator of rule is mounted in wiring terminal box.Industrially it is divided into the scope of connector.With industry
The degree of automation is higher and higher and Industry Control requires to be increasingly stringenter, accurately, and the dosage of connecting terminal gradually goes up.With electricity
The use scope of the development of sub-industry, connecting terminal is more and more, and type is also more and more.
Outdoor terminal box of transformer substation, convergence control cabinet are the main secondary devices of substation, are breaker, voltage transformer, change
The place that depressor, metering secondary line terminal connect, if dampness occurs in terminal box, condensation may cause in terminal box
Dielectric strength substantially reduces, and easily causes and shelf depreciation and short circuit phenomenon occur in terminal box convergence control cabinet, or even damage terminal box
Equipment and cable in convergence control cabinet, seriously threaten the safe operation of secondary device.
The patent document of Authorization Notice No. CN207338972U discloses a kind of terminal box of transformer substation damp-proof temperature control system, packet
Terminal box body is included, the lower end of the terminal box body is fixedly installed with pedestal, and the front of terminal box body is equipped with cabinet door,
The upper end fixing sleeve of the terminal box body is equipped with moisture-proof rubber, is fixedly installed with wedge-shaped top in the upper surface of moisture-proof rubber, blocks
The thickness of frid is less than the thickness of terminal box wall box, and drawing and pulling type sealing plate is arranged in the one side wall of terminal box body,
Moisture-proof elastical cloth, the dehumidifier cooling device of upper setting, to dehumidifying in cabinet, which does not design temperature-humidity detecting device,
Dehumidifier cooling device not only will increase energy consumption long lasting for sex work, but also can generate heat causes the intracorporal temperature of case to increase.
The patent document of Authorization Notice No. CN207339020 U discloses a kind of damp cooling device of terminal box of transformer substation drive,
Including rain cover and setting, blower and controller interconnected, blower in rain cover are arranged in the air duct in rain cover,
Air duct includes the air inlet connecting with the exhaust outlet of power station terminal box and the air outlet that is arranged in rain cover, anti-at air outlet
Canopy is provided with ventilation gap, controller and the temperature inside the box sensor, humidity sensor and the electricity that are arranged in the terminal box of power station
Source connection, controller are connect with the box outside temperature sensor and photoelectric sensor being arranged on rain cover；Authorization Notice No.
The patent document of CN104932590B discloses a kind of moisture-proof terminal box, including case lid, cabinet and pedestal, sets at the top of the cabinet
Bottom plate is arranged in top set plate, the bottom of the pedestal, and the top of the top plate is arranged in the case lid, and preformed hole is arranged in the top plate
And ventilation fan is arranged in gas outlet, the preformed hole, the lower part of the body side is arranged air inlet, sets on the outside of the air inlet
Metal mesh is set, crossbeam is respectively set in the intracorporal upper and lower part of case, temp probe is arranged in the upper beam, humidity is visited
Head and temperature and humidity controller, are arranged heater in the lower beam, the temp probe and moisture probe it is in parallel after, and it is warm and humid
Controller connection is spent, the temperature and humidity controller is connect with heater, ventilation fan；
It is additionally arranged temperature and humidity sensing device in above-mentioned two technical solution, the function of dehumidifying and cooling theoretically may be implemented, it is practical
In use, will lead to after the electric elements installed in terminal box, inner ventilation is bad, sluggish in air circulation, the generation of heater
Heat such as is gathered at one at the factors, and temperature controller is caused to work long hours, at this time if the input voltage of temperature controller not
Stablize, can even generate and burn when serious.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide the transformer substation ends that tide is driven in a kind of heating
Sub- case carries out special designing for the position of the motor easily to generate heat, is installed in and is arranged in air duct, utilize the air of flowing
Cool down to motor, on the one hand can reduce the intracorporal temperature of case, still further aspect carries out wind cooling temperature lowering to motor, delays electricity
Machine aging phenomenon.
In order to achieve the above objectives, the invention adopts the following technical scheme:
Cool-down dehumidification device in the terminal box of transformer substation of tide, including cabinet, setting cabinet is driven in a kind of heating, and the cabinet includes two
A outer side baffle, top plate and bottom plate, the outside baffle inner wall are provided with inner side baffle, the inner side baffle by connecting elements
Air port is preset between upper end and top plate, and air duct, the cool-down dehumidification device packet are formed between the inner side baffle and outer side baffle
Motor, transmission mechanism, guiding mechanism, blower and heater are included, the motor is arranged in air duct, the lower end in the air duct and case
It is external to be connected to, multiple air inlets are set on the bottom plate.
Further, the transmission mechanism includes the screw rod being sequentially connected with motor output shaft, the shell for being fixed on blower
The upper silk braid connecting with screw rod transmission, the one end of the screw rod far from motor and inner side baffle are rotatablely connected.
Further, the guiding mechanism include both ends be fixedly connected respectively with inner side baffle guide rod, be fixed on wind
The sliding sleeve being slidably connected on the shell of machine and with guide rod.
Further, the cool-down dehumidification device further includes the temperature and humidity induction module and central processing mould being sequentially connected electrically
Block, the opening and closing of central processing module the control motor, blower and heater.
Further, setting signal conditioning module, the letter between the temperature and humidity induction module and central processing module
Number conditioning module includes the amplification circuit module being sequentially connected electrically and A/D conversion circuit module.
Further, the cool-down dehumidification device further includes power supply circuit module, and the power supply circuit module includes will
220V mains AC is converted to what the rectification circuit of direct current and be allocated the direct current of rectification circuit output end used
Bleeder circuit, the rectification circuit include rectifier and with the concatenated phase-shift circuit of rectifier input, the phase-shift circuit packet
Include concatenated first resistor and first capacitor, the bleeder circuit be connected to the first output end of rectifier and second output terminal it
Between, including be sequentially connected electrically second resistance, the first voltage-stablizer, the second voltage-stablizer.
Further, the second capacitor for filtering is also set up between first output end of rectifier and second output terminal
Device.
The beneficial effects of the present invention are:
1. baffle inner wall on the outside of the invention is provided with inner side baffle by connecting elements, two and component can use connecting column
Or the connecting plate being vertically arranged, when blower and heater work, the air outside cabinet is heated from the air inlet on bottom plate
Pass through the air port between inner side baffle upper end and top plate and the discharge of the air duct between inner side baffle and outer side baffle after device heating
Outside cabinet, the intracorporal hygrothermal environment of case is improved, into lower air circulation mode out under present invention use, can effectively be kept away
Exempt from rainwater to pour into cabinet.
2. blower of the invention can motor, transmission mechanism, guiding mechanism collective effect under, motor use direct current
Machine controls steering and the positive and negative rotation period of motor by electronic switch, and reciprocation type moves horizontally in cabinet, large area of arranging in pairs or groups
The heater (such as cooling fin) of covering carries out offer hot wind to the intracorporal different location of case, carries out to the intracorporal space of case complete
The dehumidifying and cooling of face property avoids the problem that local temperature is excessively high；Special set is carried out especially for the position of the motor easily to generate heat
Meter is installed in and is arranged in air duct, cooled down using the air of flowing to motor, it is intracorporal on the one hand can to reduce case
Temperature, still further aspect carry out wind cooling temperature lowering to motor, delay motor ages phenomenon.
3. transmission mechanism includes the screw rod being sequentially connected with motor output shaft, is fixed on the shell of blower and screw rod transmission
The silk braid of connection, the one end of screw rod far from motor and inner side baffle are rotatablely connected, guiding mechanism include both ends respectively with interior side block
Guide rod that plate is fixedly connected, the sliding sleeve for being fixed on the shell of blower and being slidably connected with guide rod；Transmission mechanism is blower
Mobile offer power, guiding mechanism provides reliable conducting wire route for blower.
4. cool-down dehumidification device further includes the temperature and humidity induction module and central processing module being sequentially connected electrically, central processing
Module controls the opening and closing of motor, blower and heater, and temperature and humidity induction module is intracorporal warm and humid in real time for detection case
Angle value transmits a signal to central processing module when the value reaches preset threshold value, and central processing module controls motor, blower
Centre is transmitted a signal to after temperature and humidity induction module detects that internal temperature and humidity is normal with the opening dehumidifying and cooling of heater
Module is managed, central processing module controls the closing of motor, blower and heater；Temperature and humidity induction module and central processing module it
Between setting signal conditioning module, signal conditioning module includes the amplification circuit module being sequentially connected electrically and A/D conversion circuit module.
5. the present invention changes the power supply mode of traditional transformer device structure, special designing power supply circuit module solves change
The influence that depressor generates heat to case body temperature, effectively reduces the condensation rate of convergence control cabinet, terminal box, improves equipment operation
Reliability.The invention patent is esy to use, safe and reliable, significant effect, has a large promotion value and is suitable for becoming distribution
Terminal box, convergence control cabinet etc..
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of one China and foreign countries' side baffle of the embodiment of the present invention, connecting plate and inner side baffle positional relationship；
Fig. 3 is the structural schematic diagram of transmission mechanism and guiding mechanism in the embodiment of the present invention one；
Fig. 4 is the schematic diagram of two power supply circuit of the embodiment of the present invention.
Figure label: the outer side baffle of 1-, 2- top plate, 3- bottom plate, 4- connecting plate, 5- inner side baffle, the air port 6-, the air duct 7-,
8- air inlet, 9- temperature and humidity induction module, 10- signal conditioning module, 11- central processing module, 12- motor, 13- blower, 14-
Heater, 15- screw rod, 16- silk braid, 17- guide rod, 18- sliding sleeve.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figure 1 to Figure 3, the present invention includes cabinet, cool-down dehumidification device in cabinet is arranged,
Cabinet includes two outer side baffles 1, top plate 2 and bottom plate 3, and outer 1 inner wall of side baffle is installed by vertically arranged connecting plate 4
There is inner side baffle 5, air port 6 is preset between 5 upper end of inner side baffle and top plate 2, forms wind between inner side baffle 5 and outer side baffle 1
Road 7, the lower end in air duct 7 and cabinet are connected to outside, and multiple air inlets 8 are arranged on bottom plate 3；
Cool-down dehumidification device includes temperature and humidity induction module 9, signal conditioning module 10, central processing module 11, motor 12, transmission
Mechanism, guiding mechanism, blower 13 and heater 14, signal conditioning module 10 are located at temperature and humidity induction module 9 and central processing mould
Between block 11, including the amplification circuit module and A/D conversion circuit module being sequentially connected electrically, central processing module 11 is using can compile
Range controller, controls the opening and closing of motor 12, blower 13 and heater 14, and motor 12 is bolted on the wind in left side
In road 7, transmission mechanism includes the screw rod 15 being sequentially connected with 12 output shaft of motor, is fixed on the shell of blower 13 and screw rod 15
The silk braid 16 of transmission connection, the one end of screw rod 15 far from motor 12 and inner side baffle 5 are rotatablely connected；Guiding mechanism includes both ends point
The guide rod 17 not being fixedly connected with inner side baffle 5, the cunning for being fixed on the shell of blower 13 and being slidably connected with guide rod 17
Set 18.
Electronic component in cool-down dehumidification device is laggard through transformer conversion direct current by external 220V electric main
Row power supply, when specific works, temperature and humidity induction module 9 is used for the intracorporal real time humiture value of detection case, when the value reaches default
Threshold value when, transmit a signal to signal conditioning module 10, after processing, transmit a signal to central processing module 11, central processing
Module 11 controls the opening dehumidifying and cooling of motor 12, blower 13 and heater 14, and temperature and humidity induction module 9 detects internal warm and humid
After degree is normal, signal conditioning module 10 is transmitted a signal to, after processing, transmits a signal to central processing module 11, central processing
The closing of module 11 control motor, blower and heater.
Embodiment two
The present embodiment and the structure of embodiment one are essentially identical, unlike: as shown in figure 4, cool-down dehumidification device further includes supplying
Electric circuit module, power supply circuit module include that 220V electric main is converted to the rectification circuit of direct current and rectification circuit is defeated
The direct current of outlet is allocated the bleeder circuit used, and rectification circuit includes rectifier V and concatenated with rectifier V input terminal
Phase-shift circuit, phase-shift circuit include concatenated first resistor R1 and first capacitor C1, and it is defeated that bleeder circuit is connected to rectifier V first
It is whole including the second resistance R2, the first voltage-stablizer U1, the second voltage-stablizer U2 being sequentially connected electrically between outlet and second output terminal
The second capacitor C2 for filtering is also set up between stream the first output end of device V and second output terminal.Wherein the first voltage-stablizer U1
The voltage at both ends is 30V, is motor, blower and heating installation power supply, and it is humidity inductive that the voltage at the second both ends voltage-stablizer U2, which is 5V,
Module, signal conditioning module, central processing module power supply.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (5)
1. cool-down dehumidification device in the terminal box of transformer substation of tide, including cabinet, setting cabinet is driven in a kind of heating, the cabinet includes
Two outer side baffles, top plate and bottom plate, it is characterised in that: the outside baffle inner wall is provided with interior side block by connecting elements
Plate presets air port, forms air duct between the inner side baffle and outer side baffle between the inner side baffle upper end and top plate, described
Cool-down dehumidification device includes motor, transmission mechanism, guiding mechanism, blower and heater, and the motor is arranged in air duct, described
It is connected to outside the lower end in air duct and cabinet, multiple air inlets is set on the bottom plate.
2. the terminal box of transformer substation that tide is driven in a kind of heating according to claim 1, it is characterised in that: the transmission mechanism packet
It includes the screw rod being sequentially connected with motor output shaft, be fixed on the silk braid connecting on the shell of blower with screw rod transmission, the screw rod
One end and inner side baffle far from motor are rotatablely connected.
3. the terminal box of transformer substation that tide is driven in a kind of heating according to claim 1, it is characterised in that: the guiding mechanism packet
Include the guide rod that both ends are fixedly connected with inner side baffle respectively, the cunning for being fixed on the shell of blower and being slidably connected with guide rod
Set.
4. the terminal box of transformer substation that tide is driven in a kind of heating according to claim 1, it is characterised in that: the cool-down dehumidification dress
Setting further includes the temperature and humidity induction module and central processing module being sequentially connected electrically, and the central processing module controls motor, wind
The opening and closing of machine and heater.
5. the terminal box of transformer substation that tide is driven in a kind of heating according to claim 1, it is characterised in that: the temperature and humidity induction
Setting signal conditioning module between module and central processing module, the signal conditioning module include the amplification electricity being sequentially connected electrically
Road module and A/D conversion circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124140.4A CN109274018A (en) | 2018-09-26 | 2018-09-26 | The terminal box of transformer substation of tide is driven in a kind of heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124140.4A CN109274018A (en) | 2018-09-26 | 2018-09-26 | The terminal box of transformer substation of tide is driven in a kind of heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274018A true CN109274018A (en) | 2019-01-25 |
Family
ID=65197702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811124140.4A Pending CN109274018A (en) | 2018-09-26 | 2018-09-26 | The terminal box of transformer substation of tide is driven in a kind of heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274018A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416895A (en) * | 2019-08-20 | 2019-11-05 | 国家电网有限公司 | A kind of damp case of substation's GIS device secondary circuit intelligence drive |
| CN110729639A (en) * | 2019-10-25 | 2020-01-24 | 江苏哲博电气有限公司 | Be applied to cubical switchboard in underground distribution room |
| CN111328238A (en) * | 2020-02-28 | 2020-06-23 | 张树征 | Power failure detection device and use method thereof |
| CN112736726A (en) * | 2020-11-12 | 2021-04-30 | 国网河南省电力公司叶县供电公司 | Integrative electric power install bin of dampproofing heat dissipation |
| CN114111308A (en) * | 2021-11-19 | 2022-03-01 | 国网辽宁省电力有限公司检修分公司 | Condensation processing apparatus in control cubicle |
| CN116526315A (en) * | 2023-03-31 | 2023-08-01 | 广东长电成套电器有限公司 | Dehumidification structure and dehumidification method of high-low voltage switch cabinet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207732335U (en) * | 2018-01-18 | 2018-08-14 | 天津保能电气设备有限公司 | A kind of open air Homogeneouslly-radiating distribution box |
| CN207910296U (en) * | 2018-03-14 | 2018-09-25 | 云南电网有限责任公司红河供电局 | The heat-insulated terminal box of wood moulding |
-
2018
- 2018-09-26 CN CN201811124140.4A patent/CN109274018A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207732335U (en) * | 2018-01-18 | 2018-08-14 | 天津保能电气设备有限公司 | A kind of open air Homogeneouslly-radiating distribution box |
| CN207910296U (en) * | 2018-03-14 | 2018-09-25 | 云南电网有限责任公司红河供电局 | The heat-insulated terminal box of wood moulding |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416895A (en) * | 2019-08-20 | 2019-11-05 | 国家电网有限公司 | A kind of damp case of substation's GIS device secondary circuit intelligence drive |
| CN110416895B (en) * | 2019-08-20 | 2023-08-29 | 国家电网有限公司 | Intelligent moisture removal box for secondary circuit of GIS equipment of transformer substation |
| CN110729639A (en) * | 2019-10-25 | 2020-01-24 | 江苏哲博电气有限公司 | Be applied to cubical switchboard in underground distribution room |
| CN111328238A (en) * | 2020-02-28 | 2020-06-23 | 张树征 | Power failure detection device and use method thereof |
| CN112736726A (en) * | 2020-11-12 | 2021-04-30 | 国网河南省电力公司叶县供电公司 | Integrative electric power install bin of dampproofing heat dissipation |
| CN114111308A (en) * | 2021-11-19 | 2022-03-01 | 国网辽宁省电力有限公司检修分公司 | Condensation processing apparatus in control cubicle |
| CN116526315A (en) * | 2023-03-31 | 2023-08-01 | 广东长电成套电器有限公司 | Dehumidification structure and dehumidification method of high-low voltage switch cabinet |
| CN116526315B (en) * | 2023-03-31 | 2023-10-17 | 广东长电成套电器有限公司 | Dehumidification structure and dehumidification method of high-low voltage switch cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109274018A (en) | The terminal box of transformer substation of tide is driven in a kind of heating | |
| CN106199108A (en) | A kind of electric power metering device | |
| CN104377582B (en) | Box-type substation | |
| CN107069484A (en) | A kind of ventilation and heat switch cubicle | |
| CN207082753U (en) | A kind of energy-saving control cabinet radiator | |
| CN202676186U (en) | Novel portable detection device | |
| CN105896348A (en) | Intelligent double-box-body overlapped type heat-dissipation power distribution cabinet | |
| CN207926130U (en) | A kind of enclosed bus bridge | |
| CN206432595U (en) | A kind of pre- anti-condensation outdoor electric cabinet | |
| CN208386159U (en) | A kind of mixed compensation device | |
| CN210624838U (en) | Split type intelligent air conditioner controller with energy metering function | |
| CN106597045A (en) | Outdoor nonmetal metering box | |
| CN208797429U (en) | One kind having capacitance compensation Intelligent comprehensive power distribution cabinet | |
| CN203589739U (en) | Outdoor column type SVG reactive power compensator | |
| CN208567112U (en) | A kind of Domestic warm-air machine that controller is external | |
| CN211046157U (en) | Constant temperature low-voltage control cabinet | |
| CN207559392U (en) | A kind of exchange closed switch cabinet | |
| CN208820289U (en) | A kind of contactor cabinet structure that wind power generating set uses | |
| CN214384820U (en) | Alternating-current high-voltage metal closed ring network switch equipment | |
| CN206461272U (en) | Air linkage dehydrating unit in a kind of high-tension switch cabinet | |
| CN207947138U (en) | A kind of transformer case radiator | |
| CN205583465U (en) | Terminal box dehumidifier | |
| CN104701862A (en) | Outdoor pole-mounted SVG (static Var compensation) unit | |
| CN205485692U (en) | PLC switch board | |
| CN219513527U (en) | American box transformer 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |