CN211579610U - Low-voltage anti-islanding device - Google Patents
Low-voltage anti-islanding device Download PDFInfo
- Publication number
- CN211579610U CN211579610U CN202020366695.6U CN202020366695U CN211579610U CN 211579610 U CN211579610 U CN 211579610U CN 202020366695 U CN202020366695 U CN 202020366695U CN 211579610 U CN211579610 U CN 211579610U
- Authority
- CN
- China
- Prior art keywords
- device body
- controller
- fixedly connected
- low
- heat dissipation
- 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.)
- Active
Links
Images
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses an anti-island device of low pressure, including device body and device box, one side outer wall fixed connection of device box and device body, the top of device body is equipped with the installing port, rotate through the pivot in the installing port and be connected with the apron, the apron is kept away from the one end of pivot and is passed through locking screw fixed connection with the inner wall of installing port, two heat dissipation fans that the interior bottom fixedly connected with symmetry of device body set up, the interior bottom of device body is equipped with the opening that corresponds with the heat dissipation fan, the top of heat dissipation fan is equipped with the grid plate, the inner wall fixed connection of grid plate and device body, the interior top fixedly connected with temperature and humidity sensor of device body, be equipped with controller, power and heating rod in the device box in proper order. The utility model discloses in through temperature control mechanism's setting, can monitor and control the stability in the anti-island device to the safety in utilization of anti-island device has been promoted.
Description
Technical Field
The utility model relates to an electric power tech field especially relates to anti-island device of low pressure.
Background
The islanding effect refers to a state that when a power grid is in voltage loss, the output and the load of a distributed photovoltaic power supply connected to the grid at a user side are balanced nearby, and a system still keeps supplying power to a certain part of lines in the voltage loss power grid.
However, the internal structure of the existing anti-islanding device is simple, and a mechanism for monitoring and controlling the temperature is lacked in the anti-islanding device, so that the use safety of the anti-islanding device is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art anti-island device inner structure comparatively simple, lack the problem of carrying out monitor control mechanism to the temperature in the anti-island device, and the anti-island device of low pressure that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a low-voltage anti-islanding device comprises a device body and a device box, wherein the device box is fixedly connected with the outer wall of one side of the device body, the top of the device body is provided with a mounting opening, a cover plate is rotatably connected in the mounting opening through a rotating shaft, one end, far away from the rotating shaft, of the cover plate is fixedly connected with the inner wall of the mounting opening through a locking screw, the inner bottom of the device body is fixedly connected with two heat dissipation fans which are symmetrically arranged, the inner bottom of the device body is provided with through openings corresponding to the heat dissipation fans, a grid plate is arranged above the heat dissipation fans and fixedly connected with the inner wall of the device body, the inner top of the device body is fixedly connected with a temperature and humidity sensor, a controller, a power supply and a heating rod are sequentially arranged in the device box, the output end of the heating rod penetrates through the outer wall of the device body and extends inwards, and the output, and the output ends of the power supply and the temperature and humidity sensor are connected with the input end of the controller.
Preferably, a first dust screen is fixedly inserted into the through hole.
Preferably, the top of the device box is fixedly connected with an alarm, and the output end of the controller is connected with the input end of the alarm.
Preferably, the bottom fixedly connected with of device box connects that charges, the output of the joint that charges is connected with the input of power.
Preferably, the controller is a PLC controller.
Preferably, the type of the temperature and humidity sensor is SHT 11.
Preferably, the cover plate is provided with a vent, and a second dust screen is fixedly inserted into the vent.
Has the advantages that:
1. when the temperature and humidity sensor detects that the stability in the anti-islanding device is too high, the temperature signal is sent to the controller, then the controller controls the heat dissipation fan to dissipate heat, when the temperature in the anti-islanding device is too low, the controller controls the heating rod to be opened, and meanwhile, the heat dissipation fan can blow hot air generated by the heating rod into the anti-islanding device to raise the temperature;
2. simultaneously when the stability in the anti-island device is unusually low or high, the controller control siren is opened, sends out the police dispatch newspaper, and first dust screen can prevent effectively that the dust from getting into in the anti-island device simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a low-voltage anti-islanding device provided by the present invention;
fig. 2 is a schematic diagram of a control system of the low-voltage anti-islanding device provided by the utility model.
In the figure: the device comprises a device body 1, a device box 2, a rotating shaft 3, a heat dissipation fan 4, a grid plate 5, a temperature and humidity sensor 6, a controller 7, a power supply 8, a heating rod 9, a first dust screen 10, an alarm 11, a charging joint 12, a cover plate 13, a locking screw 14 and a second dust screen 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, the low-voltage anti-islanding device comprises a device body 1 and a device box 2, and is characterized in that: the device box 2 is fixedly connected with the outer wall of one side of the device body 1, the top of the device body 1 is provided with a mounting port, a cover plate 13 is rotatably connected in the mounting port through a rotating shaft 3, one end of the cover plate 13 far away from the rotating shaft 3 is fixedly connected with the inner wall of the mounting port through a locking screw 14, so that the maintenance in the device body 1 is convenient, the inner bottom of the device body 1 is fixedly connected with two heat dissipation fans 4 which are symmetrically arranged for dissipating heat, the inner bottom of the device body 1 is provided with a through hole corresponding to the heat dissipation fan 4, a grid plate 5 is arranged above the heat dissipation fan 4 and used for supporting an electrical component, the grid plate 5 is fixedly connected with the inner wall of the device body 1, the inner top of the device body 1 is fixedly connected with a temperature and humidity sensor 6 for detecting the temperature in the device body 1, a controller 7, a power supply 8 and a heating rod 9 are sequentially arranged in the device box, the output end of the controller 7 is respectively connected with the input ends of the heating rod 9 and the heat dissipation fan 4, and the output ends of the power supply 8 and the temperature and humidity sensor 6 are respectively connected with the input end of the controller 7 and used for sending temperature signals to the controller 7.
In this embodiment, the opening internal fixation is inserted and is equipped with first dust screen 10, prevent dust admission device body 1, the top fixedly connected with siren 11 of device box 2, the output of controller 7 is connected with siren 11's input, be used for issuing the police dispatch newspaper, the bottom fixedly connected with of device box 2 charges joint 12, the output of joint 12 that charges is connected with power 8's input, be used for charging for power 8, controller 7 is the PLC controller, temperature and humidity sensor 6's model is SHT11, be equipped with the vent on the apron 13, the internal fixation of vent is inserted and is equipped with second dust screen 15, prevent in the dust admission device body 1.
In this embodiment, when temperature and humidity sensor 6 detects the stability in the anti-island device too high, send temperature signal to controller 7, then controller 7 control heat dissipation fan 4 dispels the heat, when the temperature in the anti-island device is crossed low, controller 7 control heating rod 9 is opened, heat dissipation fan 4 can blow the hot gas that heating rod 9 produced to the anti-island device in the temperature that promotes simultaneously, simultaneously when the stable anomaly in the anti-island device is low or high, controller 7 control siren 11 is opened, send out the police dispatch newspaper, first dust screen 10 can effectively prevent that the dust from getting into in the anti-island device simultaneously.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. Anti-island device of low pressure, including device body (1) and device box (2), its characterized in that: the device comprises a device box (2) and a device body (1), wherein the outer wall of one side of the device box (2) is fixedly connected with the outer wall of one side of the device body (1), the top of the device body (1) is provided with a mounting hole, a cover plate (13) is rotatably connected with the mounting hole through a rotating shaft (3), one end of the cover plate (13) far away from the rotating shaft (3) and the inner wall of the mounting hole are fixedly connected through locking screws (14), two heat dissipation fans (4) are symmetrically arranged on the inner bottom of the device body (1), openings corresponding to the heat dissipation fans (4) are formed in the inner bottom of the device body (1), a grid plate (5) is arranged above the heat dissipation fans (4), the grid plate (5) is fixedly connected with the inner wall of the device body (1), a temperature and humidity sensor (6) is fixedly connected with the inner wall of the device body (1), and a controller (, Power (8) and heating rod (9), the output of heating rod (9) runs through the outer wall of device body (1) and inwards extends, the output of controller (7) is connected with the input of heating rod (9) and heat dissipation fan (4) respectively, the output of power (8) and temperature and humidity sensor (6) all is connected with the input of controller (7).
2. The low-voltage anti-islanding device according to claim 1, wherein: a first dustproof net (10) is fixedly inserted into the through hole.
3. The low-voltage anti-islanding device according to claim 1, wherein: the top fixedly connected with siren (11) of device box (2), the output and the input of siren (11) of controller (7) are connected.
4. The low-voltage anti-islanding device according to claim 1, wherein: the bottom fixedly connected with of device box (2) charges joint (12), the output of the joint that charges (12) is connected with the input of power (8).
5. The low-voltage anti-islanding device according to claim 1, wherein: the controller (7) is a PLC controller.
6. The low-voltage anti-islanding device according to claim 1, wherein: the type of the temperature and humidity sensor (6) is SHT 11.
7. The low-voltage anti-islanding device according to claim 1, wherein: the cover plate (13) is provided with a vent, and a second dust screen (15) is fixedly inserted into the vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020366695.6U CN211579610U (en) | 2020-03-22 | 2020-03-22 | Low-voltage anti-islanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020366695.6U CN211579610U (en) | 2020-03-22 | 2020-03-22 | Low-voltage anti-islanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579610U true CN211579610U (en) | 2020-09-25 |
Family
ID=72526930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020366695.6U Active CN211579610U (en) | 2020-03-22 | 2020-03-22 | Low-voltage anti-islanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579610U (en) |
-
2020
- 2020-03-22 CN CN202020366695.6U patent/CN211579610U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205609968U (en) | Low pressure distribution equipment with dustproof function of high -efficient heat dissipation | |
| CN207053004U (en) | A kind of intelligent box substation with heat abstractor | |
| CN211579610U (en) | Low-voltage anti-islanding device | |
| CN207006475U (en) | A kind of draught fan automatic control system | |
| CN206585245U (en) | A kind of switchgear house casing | |
| CN206060560U (en) | A kind of domestic photovoltaic inversion case | |
| CN204595655U (en) | A kind of intelligent substation convergence control cabinet temperature humidity regulating system | |
| CN203133642U (en) | Novel ring network cabinet | |
| CN111129963A (en) | Distribution box control device and method and distribution box system | |
| CN213816993U (en) | Power plant is with switch board that security is good | |
| CN206807908U (en) | A kind of intelligent security guard controller | |
| CN206418816U (en) | A kind of technological service computer room heat dissipation, energy conservation system | |
| CN210577302U (en) | Energy-saving automatic dehumidification switch cabinet | |
| CN213151437U (en) | Power distribution cabinet | |
| CN111610357A (en) | Electric power wire alarm device | |
| CN202692335U (en) | Energy-saving blowing-in flow load balancing control system | |
| CN205944831U (en) | Capacitor box with monitoring device | |
| CN112713523A (en) | Intelligent energy-saving electrical cabinet for optimizing electric energy | |
| CN202598773U (en) | Humidity control device. | |
| CN221447878U (en) | Heat abstractor of UPS cabinet | |
| CN218350772U (en) | Intelligent temperature and humidity control device of power distribution cabinet | |
| CN210744568U (en) | Switch board for house is bred to beasts and birds | |
| CN207517164U (en) | A kind of transformer substation switch chamber ventilated warning device based on intelligent-induction and wind turbine power generation | |
| CN221125350U (en) | Safety alarm device based on power dispatching | |
| CN220146831U (en) | Medical packaging bag machine controller integrating bag making and printing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |