CN209963541U - Box type fixed metal closed incoming line cabinet - Google Patents
Box type fixed metal closed incoming line cabinet Download PDFInfo
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- CN209963541U CN209963541U CN201921167585.0U CN201921167585U CN209963541U CN 209963541 U CN209963541 U CN 209963541U CN 201921167585 U CN201921167585 U CN 201921167585U CN 209963541 U CN209963541 U CN 209963541U
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Abstract
The utility model discloses a box-type fixed metal-enclosed incoming cabinet, which comprises a cabinet body and a cabinet door, wherein the cabinet body is internally provided with an incoming line chamber, an outgoing line chamber, a breaker chamber, an instrument chamber and a detection chamber, the detection chamber is internally and fixedly provided with a current transformer, and a baffle plate at the bottom of the detection chamber is fixedly provided with a sensor; an indicator light and an ammeter are fixedly arranged in the instrument room through a mounting panel; a bus of the overhead line penetrates through an insulating sleeve on the side wall of the cabinet body and extends into the wire inlet chamber, an insulator is fixedly arranged on the rear side wall of the cabinet body in the wire inlet chamber, the insulator is connected with one end of a circuit breaker through a copper bar, and the other end of the circuit breaker is connected with a wire outlet terminal at the bottom of the wire outlet chamber through the copper bar penetrating through the current transformer; the output end of the sensor is connected with the indicator light through a cable. The utility model discloses can acquire the break-make state of system's circuit through non-contact response to show through the pilot lamp in the instrument room, make things convenient for the operating condition that the maintainer mastered the inlet wire cabinet directly perceived.
Description
Technical Field
The utility model relates to an electric power system controlgear technical field, especially a cubical switchboard.
Background
The high-voltage switch cabinet is also called a high-voltage complete switch or a high-voltage complete distribution device, and related high-voltage and low-voltage electrical equipment, buses and the like are assembled in a closed or open metal cabinet body according to the requirements of an electrical primary main wiring diagram, and the high-voltage switch cabinet is opened, closed, controlled and protected during the power generation, power transmission, power distribution and electric energy conversion processes of an electric power system.
The incoming cabinet is one type of switch cabinet and is used for being connected into an overhead line and realizing the connection or disconnection of subsequent electric equipment through the opening and closing of a breaker. The incoming line cabinet is divided into an incoming line chamber, a breaker chamber and an outgoing line chamber, but because all electrical equipment are located in the switch cabinet, the on-off of the circuit can not be directly observed from the outside of the incoming line cabinet, so that the working state of the incoming line cabinet can not be accurately judged by a maintainer, and certain potential safety hazards can be certainly caused if the maintainer acts in a trade.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a fixed metal enclosed inlet wire cabinet of box, can carry out visual display to inlet wire cabinet's operating condition, avoids live working incident's emergence.
In order to solve the technical problem, the utility model adopts the following technical proposal.
The box-type fixed metal closed wire inlet cabinet comprises a cabinet body and a cabinet door which are assembled, wherein a wire inlet chamber, a wire outlet chamber and a circuit breaker chamber are arranged in the cabinet body, an instrument chamber is also arranged at the upper part of the front end of the cabinet body, the wire inlet chamber is positioned at the upper part of the rear end of the cabinet body, the wire outlet chamber is positioned at the lower part of the rear end of the cabinet body, and the circuit breaker chamber is arranged in the middle of the front end of the cabinet body; the cabinet body between the wire inlet chamber and the wire outlet chamber is set as a detection chamber, and the adjacent detection chambers are separated from the wire outlet chamber through a partition plate with a ventilation hole; the cabinet door comprises a glass door, a circuit breaker room door and a ventilation door which are independently arranged from top to bottom, the glass door is arranged corresponding to the instrument room, the circuit breaker room door is arranged corresponding to the circuit breaker room, the ventilation door is arranged corresponding to the inner cavity of the cabinet body below the circuit breaker room, and the ventilation door is provided with a ventilation window;
a current transformer for detecting system current is fixedly arranged in the detection chamber corresponding to the circuit breaker wire outlet end, and a sensor for inducing the current in the copper bar to pass is fixedly arranged on a partition plate at the bottom of the detection chamber; an indicator light and an ammeter are fixedly arranged in the instrument room through a mounting panel;
a bus of the overhead line penetrates through an insulating sleeve which is horizontally and fixedly arranged on the side wall of the cabinet body and extends into the wire inlet chamber, an insulator which is perpendicular to the rear side wall and used for installing the bus is fixedly arranged on the rear side wall of the cabinet body in the wire inlet chamber, the insulator is connected with one end of a circuit breaker through a copper bar, and the other end of the circuit breaker is connected with a wire outlet terminal at the bottom of the wire outlet chamber through the copper bar which is arranged on a current transformer in a penetrating; the sensor positioned in the detection chamber is arranged opposite to the copper bar, the output end of the sensor is connected with an indicator lamp in the instrument chamber through a cable, and the other end of the indicator lamp is grounded; the output end of the current transformer is connected with an ammeter in the instrument room;
the wire outlet chamber is also internally provided with a lightning arrester perpendicular to the bottom plate of the cabinet body, and a lightning rod positioned in the wire outlet chamber is connected with a copper bar in the wire outlet chamber through a cable.
The box-type fixed metal closed incoming line cabinet is characterized in that the sensor is an electromagnetic sensor.
According to the box-type fixed metal closed incoming line cabinet, the top plate of the cabinet body is fixedly provided with the low-voltage wiring terminal, and the low-voltage wiring terminal is connected with the output ends of the ammeter and the sensor through cables.
According to the box-type fixed metal closed incoming line cabinet, the humidity sensor is arranged in the detection chamber, the heater is arranged in the outgoing line chamber, and the output end of the humidity sensor and the controlled end of the heater are connected with the low-voltage wiring terminal through cables respectively.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model ensures the safe distance between each electric device and improves the reliability of the system operation by setting the inner cavity of the cabinet body in a separating way; through setting up the instrument room and being used for responding to the sensor of copper bar electric current, can acquire the break-make state of system's circuit through non-contact response to show through the pilot lamp in the instrument room, make things convenient for the maintainer to grasp the running state of inlet wire cabinet directly perceived.
The lightning arrester arranged in the wire outlet chamber can prevent equipment in the cabinet from being struck by lightning in thunderstorm weather, plays a role in protecting the equipment in the cabinet body, and provides reliable guarantee for the stable operation of a system; the low pressure binding post that cabinet body top set up can give electric power system's control room with the low pressure numerical value that detects in, and whether the control room decides to start the heater according to the numerical value that detects again and dehumidifies the operation, then sends the instruction to the heater through low pressure binding post through the cable to guarantee the drying of inlet wire cabinet, avoid humid environment to produce the condensation and cause the damage to electrical equipment.
Drawings
FIG. 1 is an electrical schematic diagram of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a schematic diagram of the internal structure of the present invention.
Wherein: 1. the intelligent cabinet comprises a cabinet body, 2 insulators, 3 breakers, 4 current transformers, 5 sensors, 6 heaters, 7 lightning rods, 8 copper bars, 9 wire outlet terminals, 10 mounting panels, 11 low-voltage wiring terminals, 12 glass doors, 13 breaker door doors and 14 ventilation doors.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A box type fixed metal closed incoming line cabinet is structurally shown in figures 2 and 3 and comprises a cabinet body 1 and a cabinet door which are assembled. The cabinet body is internally provided with a wire inlet chamber A, a wire outlet chamber B, a circuit breaker chamber C, an instrument chamber D and a detection chamber E, wherein the wire inlet chamber A is positioned at the upper part of the rear end of the cabinet body, the wire outlet chamber B is positioned at the lower part of the rear end of the cabinet body, and the circuit breaker chamber C is arranged in the middle of the front end of the cabinet body; the detection chamber E is positioned between the wire inlet chamber and the wire outlet chamber, and the adjacent detection chambers are separated from the wire outlet chamber through a partition plate with a ventilation hole; the cabinet door includes glass door 12, circuit breaker room door 13 and the ventilation door 14 that top-down set up independently, and the glass door corresponds the instrument room setting, and circuit breaker room door corresponds the circuit breaker room setting, and the ventilation door corresponds the cabinet body inner chamber setting of circuit breaker room below, is provided with the ventilation window on the ventilation door.
And an insulator is fixedly arranged on the rear side wall of the cabinet body in the wire inlet chamber and is perpendicular to the rear side wall and used for connecting a bus and a copper bar of an overhead line and insulating and positioning a connecting point.
The detection chamber E corresponding to the circuit breaker leading-out terminal is internally fixedly provided with a current transformer 4 for detecting system current, a sensor 5 is fixedly arranged on a partition plate at the bottom of the detection chamber, the sensor is arranged opposite to a copper bar in the detection chamber and used for sensing the current passing through the copper bar, and the sensor adopts an electromagnetic sensor. And a humidity sensor is also arranged in the detection chamber and used for detecting the humidity value in the cabinet body.
An indicator light and an ammeter are fixedly arranged in the instrument room through the mounting panel 10. The ammeter is used for indicating the system current value, and the pilot lamp is used for instructing the break-make electrician operating condition of inlet wire cabinet.
And a lightning arrester 7 and a heater 6 which are vertical to the bottom plate of the cabinet body are also arranged in the wire outlet chamber. The heater is used for heating the interior of the cabinet body, and the electric equipment is prevented from being damaged by condensation generated in a damp environment; the lightning arrester can prevent equipment in the cabinet from being struck by lightning in thunderstorm weather, plays the effect of protecting cabinet body equipment, provides reliable guarantee for the steady operation of system.
And a low-voltage wiring terminal 11 is fixedly arranged on a top plate of the cabinet body and used for exchanging data with a control room through a cable, so that the control room can collect the state of the incoming line cabinet and control the running state of electrical equipment in the incoming line cabinet.
The electrical principle of the utility model is as shown in figure 1, specifically: a bus of the overhead line penetrates through an insulating sleeve which is horizontally and fixedly arranged on the side wall of the cabinet body and extends into an insulator in the wire inlet chamber, the insulator is connected with one end of a circuit breaker 3 through a copper bar, and the other end of the circuit breaker 3 is connected onto a wire outlet terminal 9 at the bottom of the wire outlet chamber through the copper bar which is arranged on a current transformer in a penetrating manner; the output end of the sensor positioned in the detection chamber is connected with an indicator lamp in the instrument chamber through a cable, and the other end of the indicator lamp is grounded; the output end of the current transformer is connected with an ammeter in the instrument room; the lightning rod is connected with the copper bar in the wire outlet chamber through a cable.
The low-voltage wiring terminal is respectively connected with the output ends of the ammeter and the sensor through cables, and the output end of the humidity sensor and the controlled end of the heater are respectively connected with the low-voltage wiring terminal through cables.
The utility model discloses a theory of operation does: when the breaker of the incoming line cabinet is closed, the system line is connected, current passes through the copper bar, and the induction type measurement is carried out outside the safe distance by utilizing the electric field coupling principle between the sensor and the high-voltage alternating electric field. The sensor generates an alternating current signal under the action of a high-voltage alternating electric field, the induced current signal is transmitted to the indicator lamp through the cable, the other end of the indicator lamp is grounded, and when the indicator lamp is connected with one end of the sensor to input current, the indicator lamp is lightened to indicate that the switch cabinet is in a working state. When the circuit breaker is disconnected, the system line is disconnected, no current flows through the copper bar, the sensor does not output signals, and the indicator light is turned off. The maintainer sees through the glass door, can learn the operating condition of inlet wire cabinet through the lighting state of observing the pilot lamp, provides reliable assurance for its work safety.
Humidity transducer real-time supervision cabinet internal humidity value to give the control room with humidity value through low pressure binding post transmission, the control room compares detected value and standard value, when being greater than the standard value, sends heating instruction to the heater through low pressure wiring end terminal, heats the internal portion of cabinet, guarantees the internal electrical equipment's of cabinet degree of dryness.
Claims (4)
1. Fixed metal enclosed incoming line cabinet of box, including the cabinet body (1) and the cabinet door of joining in marriage the dress mutually, the internal inlet wire room (A), the room (B) and the circuit breaker room (C) of being qualified for the next round of competitions that is provided with of cabinet, its characterized in that: an instrument room (D) is further arranged at the upper part of the front end of the cabinet body, the wire inlet room (A) is located at the upper part of the rear end of the cabinet body, the wire outlet room (B) is located at the lower part of the rear end of the cabinet body, and the circuit breaker room (C) is arranged in the middle of the front end of the cabinet body; the cabinet body between the wire inlet chamber and the wire outlet chamber is set as a detection chamber (E), and the adjacent detection chambers are separated from the wire outlet chamber through a partition plate with a ventilation hole; the cabinet door comprises a glass door (12), a circuit breaker chamber door (13) and a ventilation door (14) which are independently arranged from top to bottom, the glass door is arranged corresponding to the instrument chamber, the circuit breaker chamber door is arranged corresponding to the circuit breaker chamber, the ventilation door is arranged corresponding to the inner cavity of the cabinet body below the circuit breaker chamber, and the ventilation door is provided with a ventilation window;
a current transformer (4) for detecting the current of the system is fixedly arranged in the detection chamber (E) corresponding to the wire outlet end of the circuit breaker, and a sensor (5) for sensing the passing of the current in the copper bar is fixedly arranged on a partition plate at the bottom of the detection chamber; an indicator light and an ammeter are fixedly arranged in the instrument room through a mounting panel (10),
a bus of an overhead line penetrates through an insulating sleeve which is horizontally and fixedly arranged on the side wall of the cabinet body and extends into the wire inlet chamber, an insulator (2) which is perpendicular to the rear side wall and used for installing the bus is fixedly arranged on the rear side wall of the cabinet body in the wire inlet chamber, the insulator is connected with one end of a circuit breaker (3) through a copper bar, and the other end of the circuit breaker (3) is connected onto a wire outlet terminal (9) at the bottom of the wire outlet chamber through the copper bar which is arranged on a current transformer in a; the sensor positioned in the detection chamber is arranged opposite to the copper bar, the output end of the sensor is connected with an indicator lamp in the instrument chamber through a cable, and the other end of the indicator lamp is grounded; the output end of the current transformer is connected with an ammeter in the instrument room;
the outgoing line chamber is also internally provided with a lightning arrester (7) perpendicular to the bottom plate of the cabinet body, and the lightning rod is connected with the copper bar in the outgoing line chamber through a cable.
2. The box-type fixed metal-enclosed incoming cabinet according to claim 1, characterized in that: the sensor is an electromagnetic sensor.
3. The box-type fixed metal-enclosed incoming cabinet according to claim 1, characterized in that: and a low-voltage wiring terminal (11) is fixedly arranged on a top plate of the cabinet body and is respectively connected with the output ends of the ammeter and the sensor through cables.
4. The box-type fixed metal-enclosed incoming cabinet of claim 3, wherein: the detection chamber is internally provided with a humidity sensor, the outlet chamber is also internally provided with a heater (6), and the output end of the humidity sensor and the controlled end of the heater are respectively connected with the low-voltage wiring terminal through cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167585.0U CN209963541U (en) | 2019-07-24 | 2019-07-24 | Box type fixed metal closed incoming line cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167585.0U CN209963541U (en) | 2019-07-24 | 2019-07-24 | Box type fixed metal closed incoming line cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209963541U true CN209963541U (en) | 2020-01-17 |
Family
ID=69248876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921167585.0U Active CN209963541U (en) | 2019-07-24 | 2019-07-24 | Box type fixed metal closed incoming line cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209963541U (en) |
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2019
- 2019-07-24 CN CN201921167585.0U patent/CN209963541U/en active Active
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