CN215073602U - Grounding resistance cabinet of wind power distribution system - Google Patents
Grounding resistance cabinet of wind power distribution system Download PDFInfo
- Publication number
- CN215073602U CN215073602U CN202121049807.6U CN202121049807U CN215073602U CN 215073602 U CN215073602 U CN 215073602U CN 202121049807 U CN202121049807 U CN 202121049807U CN 215073602 U CN215073602 U CN 215073602U
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- side wall
- cabinet
- guide rail
- air outlet
- 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 provides a grounding resistance cabinet of a wind power distribution system, which comprises a cabinet body; the bottom of the cabinet body is provided with a sieve plate which divides the interior of the cabinet body into an upper chamber and a lower chamber; a linear track mechanism is arranged at the bottom of the lower cavity, and a cooling fan is arranged on the linear track mechanism; air inlet windows are formed in the left side wall and the right side wall of the lower cavity, air outlet windows are formed in the left side wall and the right side wall of the top of the upper cavity, and detachable filter screens are mounted at the air inlet windows and the air outlet windows on the cabinet body; the bottom opening setting of buckler is equipped with the buckler in all installation of cabinet body lateral wall air inlet window department and air outlet window department. The utility model discloses a resistance cabinet radiating effect is good, dustproof effectual, can ensure the stable operation of the internal portion circuit system of cabinet.
Description
Technical Field
The utility model belongs to the technical field of the distribution system protection, concretely relates to wind-powered electricity generation distribution system ground resistance cabinet.
Background
When the generator is in operation, the occurrence of single-phase grounding is the most common fault, when the arc grounding occurs at the fault point, the insulation damage of the stator winding and even the burning and sintering of the iron core can be further expanded, if the fault is not discovered in time and is rapidly removed, the phase or turn-to-turn short circuit can be developed. The neutral point of the generator is grounded with high resistance so as to limit grounding current and prevent various overvoltage hazards. The neutral point can limit the fault current to a proper value through grounding of the resistor, the sensitivity of relay protection is improved to act on tripping, meanwhile, the fault point is only possible to be locally slightly burnt, the transient overvoltage is limited to 2.6 times of the voltage of the neutral point from the normal line voltage, the restriking of electric arcs is limited, the overvoltage of an arc light gap is prevented from damaging a main device, meanwhile, the ferromagnetic resonance overvoltage can be effectively prevented, and therefore the safe operation of the generator is guaranteed.
The existing resistance cabinet is usually a cabinet type structure, a circuit system is arranged in the cabinet body, and the cabinet body of the resistance cabinet is installed on the surface of a cement building. In the use process of the resistor cabinet monitoring device, heat can be emitted, and in order to ensure the heat dissipation effect of the resistor cabinet, a heat dissipation air hole is usually formed in the side wall of the cabinet body so as to enable the air inside and outside the cabinet body to circulate and dissipate heat, but the heat dissipation effect of the resistor cabinet is poor only by virtue of the air hole, and the heat is accumulated in a circuit system, so that the service life of the resistor cabinet monitoring device is shortened; in addition, the external dust of cabinet body gets into the internal portion of cabinet from the bleeder vent easily, harms the internal circuit system and the instrument and equipment of resistance cabinet, influences the use of resistance cabinet.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a wind-powered electricity generation distribution system ground resistance cabinet sets up heat dissipation window and installation dismouting formula filter screen in order to improve heat dissipation and dustproof effect on this resistance cabinet.
The utility model discloses a following technical scheme realizes:
a wind power distribution system grounding resistance cabinet comprises a cabinet body;
the bottom of the cabinet body is provided with a sieve plate, the sieve plate divides the interior of the cabinet body into an upper chamber and a lower chamber, and the upper chamber is used for mounting a circuit system;
the bottom of the lower cavity is provided with a linear track mechanism, the linear track mechanism is provided with a cooling fan, and the linear track mechanism is used for driving the cooling fan to horizontally move in the lower cavity;
the air inlet windows are formed in the left side wall and the right side wall of the lower cavity, the air outlet windows are formed in the left side wall and the right side wall of the top of the upper cavity, detachable filter screens are mounted at the air inlet windows and the air outlet windows on the cabinet body, the detachable filter screens can reduce dust in the air from entering the cabinet body, and the detachable filter screens are convenient to mount and dismount and clean and maintain;
the cabinet body lateral wall air inlet window and air outlet window department all install and are equipped with the buckler, and the bottom opening setting of buckler is convenient for the air flow, and the buckler covers in air inlet window and air outlet window outside, can prevent that the rainwater from drifting into cabinet internal portion from air inlet window or air outlet window department.
Further inject, the bottom of the cabinet body is equipped with the base plate, and the interval is equipped with a plurality of mounting holes on the week side of base plate, and when this resistance cabinet was installed, the base plate was connected with the anchor through alternate bolt in the mounting hole between ground.
Further limiting, the linear track mechanism comprises a linear guide rail, a stepping motor, a screw rod and a guide rail slide block; the linear guide rail and the stepping motor are both arranged at the bottom of the lower cavity, the screw rod is arranged on the linear guide rail in a rotatable mode, the guide rail sliding block is arranged on the linear guide rail in a movable mode, the guide rail sliding block is in threaded connection with the screw rod, and one end of the screw rod is in transmission connection with a rotating shaft of the stepping motor; the stepping motor can drive the screw rod to rotate, so that the guide rail sliding block is controlled to move axially along the screw rod, the heat dissipation fan can horizontally move in the lower cavity along with the guide rail sliding block, air flow inside and outside the cabinet body can be improved, and the heat dissipation effect is improved.
Further limiting, the detachable filter screen comprises a filter screen and an elastic sealing ring arranged on the inner side wall of the filter screen, and it needs to be noted that the inner side of the filter screen refers to one side of the filter screen close to the inside of the cabinet body; the cabinet body lateral wall air inlet window and air outlet window department all are equipped with built-in spout, the bottom of built-in spout is equipped with mounting groove, built-in spout and mounting groove intercommunication, during the installation filter screen, inlay the filter screen in mounting groove, and extrude the elasticity sealing washer through external force, upwards push in built-in spout with the filter screen simultaneously, when the filter screen top offsets with built-in spout top, stop bulldozing the filter screen, under the elastic force of elasticity sealing washer, the filter screen card is inside built-in spout, and between elasticity sealing washer sealed filter screen and the built-in spout, the inside and outside air of the cabinet body circulates through the filter screen.
Further inject, cabinet body lateral wall air inlet window and air outlet window department all are equipped with the bolt pin, and the bolt pin penetrates cabinet body lateral wall and with filter screen bottom lateral wall threaded connection, and the bolt pin exerts the restraint on horizontal, prevents that the filter screen landing from coming out in the built-in spout.
According to the above technical scheme, the utility model provides a pair of wind-powered electricity generation distribution system ground resistance cabinet, beneficial effect lies in: when the resistance cabinet works, cold air outside the cabinet body enters and exits the cabinet body through the air inlet windows and the air outlet windows on the left side and the right side of the cabinet body, meanwhile, the detachable filter screens arranged at the air inlet windows and the air outlet windows can reduce dust from entering the cabinet body, and the heat inside the cabinet body can be carried out by air flow inside and outside the cabinet body, so that the heat dissipation inside the cabinet body is realized; when the heat dissipation fan operates, the heat dissipation fan can promote the flow speed of air inside and outside the cabinet body, and specifically, cold air outside the cabinet body enters the lower cavity from the air inlet windows on the left side and the right side of the bottom of the cabinet body, flows upwards under the action of the heat dissipation fan, flows out of the cabinet body from the air outlet windows on the left side and the right side of the top of the cabinet body, and carries out heat inside the cabinet body; this resistance cabinet radiating effect is good, dustproof effectual, can ensure the steady operation of the internal portion circuit system of cabinet.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a partial structure at a in fig. 1.
Fig. 3 is a schematic view of the local structure at the middle air outlet window of the present invention.
In the drawings: 1-cabinet body, 2-sieve plate, 3-linear track mechanism, 31-linear guide rail, 32-stepping motor, 33-screw rod, 34-guide rail slide block, 4-radiator fan, 5-air inlet window, 6-air outlet window, 7-detachable filter screen, 71-filter screen, 72-elastic sealing ring, 8-waterproof cover, 9-base plate, 10-built-in sliding groove, 11-installation groove and 12-bolt pin.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, a ground resistance cabinet of a wind power distribution system includes a cabinet body 1;
the bottom of the cabinet body 1 is provided with a sieve plate 2, the sieve plate 2 divides the interior of the cabinet body 1 into an upper chamber and a lower chamber, and the upper chamber is used for mounting a circuit system;
the bottom of the lower cavity is provided with a linear track mechanism 3, the linear track mechanism 3 is provided with a cooling fan 4, and the linear track mechanism 3 is used for driving the cooling fan 4 to move horizontally in the lower cavity;
the linear track mechanism 3 comprises a linear guide rail 31, a stepping motor 32, a screw rod 33 and a guide rail sliding block 34; the linear guide rail 31 and the stepping motor 32 are both arranged at the bottom of the lower chamber, the screw rod 33 is rotatably arranged on the linear guide rail 31, the guide rail sliding block 34 is movably arranged on the linear guide rail 31, the guide rail sliding block 34 is in threaded connection with the screw rod 33, and one end of the screw rod 33 is in transmission connection with a rotating shaft of the stepping motor 32; the stepping motor 32 can drive the screw rod 33 to rotate, so that the guide rail sliding block 34 is controlled to move axially along the screw rod 33, the heat dissipation fan can horizontally move in the lower chamber along with the guide rail sliding block 34, the air flow inside and outside the cabinet body 1 can be improved, and the heat dissipation effect is improved;
the air inlet windows 5 are formed in the left side wall and the right side wall of the lower cavity, the air outlet windows 6 are formed in the left side wall and the right side wall of the top of the upper cavity, detachable filter screens 7 are mounted at the positions of the air inlet windows 5 and the air outlet windows 6 on the cabinet body 1, the detachable filter screens 7 can reduce dust in the air from entering the cabinet body 1, and the detachable filter screens 7 are convenient to mount and dismount and clean and maintain;
the cabinet body 1 lateral wall air inlet window 5 and 6 departments of air outlet window all install and are equipped with buckler 8, and the bottom opening setting of buckler 8 is convenient for the air flow, and buckler 8 covers in the air inlet window 5 and 6 outsides of air outlet window, can prevent that the rainwater from drifting into cabinet body 1 inside from air inlet window 5 or 6 departments of air outlet window.
In this embodiment, the bottom of the cabinet body 1 is provided with a substrate 9, a plurality of mounting holes are arranged on the peripheral side of the substrate 9 at intervals, and when the resistance cabinet is installed, the substrate 9 is connected with the ground in an anchoring manner by inserting bolts into the mounting holes.
In this embodiment, the detachable filter screen 7 includes a filter screen 71 and an elastic sealing ring 72 disposed on an inner side wall of the filter screen 71, where it should be noted that an inner side of the filter screen 71 refers to a side thereof close to the inside of the cabinet 1; the cabinet body 1 lateral wall air inlet window 5 and 6 departments of air outlet window all are equipped with built-in spout 10, the bottom of built-in spout 10 is equipped with mounting groove 11, built-in spout 10 and mounting groove 11 intercommunication, during installation filter screen 71, inlay filter screen 71 in mounting groove 11, and extrude elastic sealing ring 72 through external force, simultaneously upwards push filter screen 71 into built-in spout 10, when filter screen 71 top offsets with built-in spout 10 top, stop bulldozing filter screen 71, under elastic sealing ring 72's elastic force, filter screen 71 card is inside built-in spout 10, and between elastic sealing ring 72 sealed filter screen 71 and built-in spout 10, the inside and outside air of cabinet body 1 circulates through filter screen 71.
In this embodiment, cabinet 1 lateral wall air inlet window 5 and air outlet window 6 department all are equipped with bolt pin 12, and bolt pin 12 penetrates cabinet 1 lateral wall and with filter screen 71 bottom lateral wall threaded connection, and bolt pin 12 exerts the restraint on horizontal, prevents that filter screen 71 from coming out from the landing in built-in spout 10.
The working principle of the embodiment is as follows: when the resistance cabinet works, cold air outside the cabinet body 1 enters and exits the cabinet body 1 through the air inlet windows 5 and the air outlet windows 6 on the left side and the right side of the cabinet body 1, meanwhile, the detachable filter screens 71 arranged at the air inlet windows 5 and the air outlet windows 6 can reduce dust from entering the cabinet body 1, and the heat inside the cabinet body 1 can be carried away by the air flow kinetic energy inside and outside the cabinet body 1, so that the heat dissipation inside the cabinet body 1 is realized; when the heat dissipation fan operates, the heat dissipation fan can promote the flowing speed of air inside and outside the cabinet body 1, and specifically, cold air outside the cabinet body 1 enters the lower chamber from the air inlet windows 5 on the left and right sides of the bottom of the cabinet body 1, flows upwards under the action of the heat dissipation fan, flows out of the cabinet body 1 from the air outlet windows 6 on the left and right sides of the top of the cabinet body 1, and carries out heat inside the cabinet body 1; the screw rod 33 can be driven to rotate through the stepping motor 32, so that the guide rail sliding block 34 is controlled to move axially along the screw rod 33, the heat dissipation fan can horizontally move in the lower chamber along with the guide rail sliding block 34, the air flow inside and outside the cabinet body 1 can be improved, and the heat dissipation effect is improved. This resistance cabinet radiating effect is good, dustproof effectual, can ensure the steady operation of the internal circuit system of cabinet 1.
Claims (5)
1. The utility model provides a wind-powered electricity generation distribution system ground resistance cabinet, includes the cabinet body, its characterized in that:
the bottom of the cabinet body is provided with a sieve plate, the sieve plate divides the interior of the cabinet body into an upper chamber and a lower chamber, and the upper chamber is used for mounting a circuit system;
the bottom of the lower cavity is provided with a linear track mechanism, the linear track mechanism is provided with a cooling fan, and the linear track mechanism is used for driving the cooling fan to horizontally move in the lower cavity;
air inlet windows are formed in the left side wall and the right side wall of the lower cavity, air outlet windows are formed in the left side wall and the right side wall of the top of the upper cavity, and detachable filter screens are mounted at the air inlet windows and the air outlet windows on the cabinet body;
the air inlet window and the air outlet window on the outer side wall of the cabinet body are respectively provided with a waterproof cover, and the bottom of each waterproof cover is provided with an opening.
2. The wind power distribution system grounding resistor cabinet according to claim 1, characterized in that: the bottom of the cabinet body is provided with a substrate, and a plurality of mounting holes are arranged on the peripheral side of the substrate at intervals.
3. The wind power distribution system grounding resistor cabinet according to claim 1, characterized in that: the linear track mechanism comprises a linear guide rail, a stepping motor, a screw rod and a guide rail slide block; the linear guide rail and the stepping motor are both arranged at the bottom of the lower cavity, the screw rod is arranged on the linear guide rail in a rotatable mode, the guide rail sliding block is arranged on the linear guide rail in a movable mode, the guide rail sliding block is in threaded connection with the screw rod, and one end of the screw rod is in transmission connection with a rotating shaft of the stepping motor.
4. A wind power distribution system ground resistance cabinet according to any one of claims 1 to 3, characterized in that: the detachable filter screen comprises a filter screen and an elastic sealing ring arranged on the inner side wall of the filter screen; the air inlet window and the air outlet window on the outer side wall of the cabinet body are both provided with built-in chutes, the bottoms of the built-in chutes are provided with mounting grooves, and the built-in chutes are communicated with the mounting grooves.
5. The wind power distribution system grounding resistor cabinet according to claim 4, characterized in that: bolt pins are arranged at the air inlet window and the air outlet window of the outer side wall of the cabinet body, penetrate into the side wall of the cabinet body and are in threaded connection with the outer side wall of the bottom of the filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121049807.6U CN215073602U (en) | 2021-05-17 | 2021-05-17 | Grounding resistance cabinet of wind power distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121049807.6U CN215073602U (en) | 2021-05-17 | 2021-05-17 | Grounding resistance cabinet of wind power distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215073602U true CN215073602U (en) | 2021-12-07 |
Family
ID=79217847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121049807.6U Active CN215073602U (en) | 2021-05-17 | 2021-05-17 | Grounding resistance cabinet of wind power distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215073602U (en) |
-
2021
- 2021-05-17 CN CN202121049807.6U patent/CN215073602U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215073602U (en) | Grounding resistance cabinet of wind power distribution system | |
| CN207637726U (en) | A kind of external intelligent breaker of electric energy meter | |
| CN116476680A (en) | High-voltage circuit fast power-off device of new energy automobile | |
| CN211790118U (en) | Cubical switchboard for electrical engineering | |
| CN213243340U (en) | Protection type cubical switchboard with heat dissipation function | |
| CN111313253A (en) | Neutral point grounding resistance cabinet for wind power system | |
| CN211429183U (en) | Device for protecting converter module | |
| CN109842040A (en) | The heat radiating type power distribution cabinet of dustproof and rainproof | |
| CN213583381U (en) | Multi-phase transformer | |
| CN220585824U (en) | Strong and weak electricity block terminal | |
| CN213303808U (en) | Microcomputer distribution transformer protection measurement and control device | |
| CN218414125U (en) | Effective radiating ground resistance cabinet | |
| CN212412578U (en) | Middle-mounted energy-saving closed high-voltage switch cabinet | |
| CN116914575B (en) | Ring main unit not prone to dust accumulation and application method thereof | |
| CN220122367U (en) | Intelligent box-type substation | |
| CN219627198U (en) | Heat dissipation type switch cabinet | |
| CN213959514U (en) | Multifunctional inflating cabinet | |
| CN220874101U (en) | Multifunctional high-low voltage switch cabinet | |
| CN211958409U (en) | Low-voltage line terminal voltage optimization compensation device | |
| CN220262588U (en) | Car fills electric pile heat radiation structure | |
| CN213937050U (en) | Pull formula block terminal | |
| CN220473655U (en) | State detection device | |
| CN213693133U (en) | Remote control system of efficient feeding machine | |
| CN202103566U (en) | Mine explosion-proof intrinsic safety-typed alternative-current frequency converter | |
| CN216903973U (en) | Cubical switchboard with dustproof construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |