CN217360095U

CN217360095U - Transformer substation grounding monitoring terminal

Info

Publication number: CN217360095U
Application number: CN202123375073.3U
Authority: CN
Inventors: 马丽军; 潘杰锋; 杨跃平
Original assignee: Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-09-02
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a transformer substation grounding monitoring terminal, which comprises a shell and a base, wherein the shell and the base are detachably connected, the shell and the base are respectively provided with a positioning component, the corresponding positioning components are matched for butt joint installation of the shell and the base, the shell and the base are respectively provided with a first limiting channel and a second limiting channel, and the first limiting channel and the second limiting channel integrally form an annular locking channel; the upper portion of the shell and the lower portion of the shell are respectively provided with a threading pipe, a limiting pipe is arranged inside the shell and communicated with the threading pipe, and a detection assembly is arranged on the limiting pipe. The base and the shell are buckled on the vertical rod below the transformer, so that the whole transformer can be quickly disassembled, meanwhile, the grounding down lead passes through the limiting pipe in the shell, the current change condition on the grounding down lead is detected in real time by the detection assembly, and the transformer is helped to be analyzed and judged whether to be abnormal.

Description

Transformer substation grounding monitoring terminal

Technical Field

The utility model relates to a transformer substation's safety monitoring technical field especially relates to a transformer substation's ground connection monitor terminal.

Background

In a power transmission and distribution network system, a transformer substation is used as an important node for electric energy redistribution, whether the operation of the transformer substation is stable or not directly influences the electric energy distribution efficiency and the user electricity consumption experience, a large number of transformers arranged in the transformer substation bear the requirements of voltage boosting and voltage reducing, for remote power transmission in remote areas, the voltage must be increased to be high voltage, the power consumption of local users needs to be reduced, the operation stability of a large number of transformers in a transformer substation is a key factor for determining the operation stability of the transformer substation, at present, when the operation of the transformer substation is detected, workers in the transformer substation are generally provided with inspection equipment to periodically inspect the transformers, and whether the transformer normally operates can not be known in real time through regular inspection, once the transformer breaks down, the transformer cannot be known in time, and an emergency repair scheme is difficult to formulate quickly, so that the power failure time is prolonged, and the power consumption experience of a user is influenced.

SUMMERY OF THE UTILITY MODEL

The transformer equipment is more in aiming at present transformer substation, and the staff patrols and examines and appears leaking easily to regularly patrolling and examining and can not know whether the transformer operates normally in real time, in case the transformer breaks down, can not in time learn, be difficult to formulate fast and salvage the scheme, cause the technical scheme of power off time extension, provide a transformer substation ground connection monitor terminal in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the application discloses a transformer substation grounding monitoring terminal, which comprises a shell and a base, wherein the shell and the base are detachably connected, positioning assemblies are respectively arranged on the shell and the base, the corresponding positioning assemblies on the shell and the base are matched for butt joint installation of the shell and the base, a first limiting channel and a second limiting channel are respectively arranged on the shell and the base, and the first limiting channel and the second limiting channel are integrally formed to form an annular locking channel for tightly installing the shell and the base on a vertical rod; the utility model discloses a transformer neutral point ground connection downlead, including shell, spacing pipe, detection subassembly, control box and main control system, shell upper portion with the shell lower part is provided with the threading pipe respectively, the inside spacing pipe that is provided with of shell, spacing pipe with the threading pipe is linked together, spacing pipe with wear to be equipped with transformer neutral point ground connection downlead in the threading pipe, be provided with the detection subassembly that is used for detecting transformer neutral point ground connection downlead running state on the spacing pipe, be provided with the control box in the shell, the control box with the detection subassembly electricity is connected, the control box is connected with the main control system communication.

This application is through detaining base and shell and establishing in the pole setting of transformer below, can realize whole quick dismantlement, passes the spacing pipe in the shell with the ground connection downlead simultaneously, utilizes the current change condition on the detection subassembly real-time detection ground connection downlead, and the control box is with the current change parameter long-range transmission in real time to the main control system on the ground connection downlead, and the staff of being convenient for knows each regional ground connection downlead current change condition, helps the analysis to judge whether the transformer appears unusually.

Preferably, locating component is including the location magnetic sheet, the shell with a plurality of location magnetic sheet has evenly arranged respectively on the base, and the location magnetic sheet that corresponds on shell and the base attracts mutually in order to be used for the shell with the base butt joint installation.

Preferably, be provided with the connection otic placode on shell and the base respectively, correspond on shell and the base connect the otic placode can dismantle the connection through the bolt.

Preferably, the detection assembly comprises a hall current sensor, the limiting pipe comprises an upper limiting pipe and a lower limiting pipe, the upper portion of the upper limiting pipe is communicated with the threading pipe on the upper portion of the shell, the lower portion of the upper limiting pipe is connected with the shell of the hall current sensor, the upper portion of the lower limiting pipe is connected with the shell of the hall current sensor, the lower portion of the lower limiting pipe is communicated with the threading pipe on the lower portion of the shell, and the hall current sensor is electrically connected with the control box.

Preferably, the upper limit pipe, the Hall current sensor and the lower limit pipe are of an injection molding integrated structure.

Preferably, the control box is provided with at least three signal interfaces, wherein one signal interface is electrically connected with a signal wire joint of the hall current sensor; the control box is also provided with an environment monitoring assembly for monitoring the change of the internal environment of the shell.

Preferably, be provided with battery, signal processing board, signal acquisition board and communication board in the control box, the battery with signal processing board electricity is connected, signal processing board respectively with signal acquisition board and communication board electricity is connected, signal acquisition board respectively with signal interface and the environment monitoring subassembly electricity is connected, the communication board pass through communication bus with the control host computer communication is connected, the control box with all be provided with the reservation through-hole that is used for wearing to establish communication bus on the shell.

Preferably, the environment monitoring assembly comprises a temperature sensor and an electromagnetic sensor, and the temperature sensor and the electromagnetic sensor are both electrically connected with the signal acquisition board.

Compared with the prior art, beneficial effect lies in:

1. according to the transformer grounding down lead, the base and the shell are buckled on the vertical rod below the transformer, so that the whole transformer grounding down lead can be detached quickly, meanwhile, the grounding down lead penetrates through the limiting pipe in the shell, the detection assembly is used for detecting the current change condition of the grounding down lead in real time, and the control box remotely forwards the current change parameters of the grounding down lead to the control host in real time, so that workers can know the current change condition of the grounding down lead in each area conveniently, and the transformer grounding down lead can be analyzed and judged to be abnormal or not;

2. this application is used for monitoring whether the electric arc appears under the ground lead through configuration temperature sensor and electromagnetic sensor in the shell to utilize temperature sensor can monitor the interior temperature parameter of shell and judge whether the circumstances such as spontaneous combustion appear, improve the variety of monitoring data.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of the overall structure of the housing in the present application.

Fig. 2 is a schematic view of the internal structure of the housing in the present application.

Fig. 3 is a rear structure diagram of the housing in the present application.

Fig. 4 is a schematic structural diagram of a base in the present application.

The reference numerals are explained below:

the device comprises a shell 1, a first limiting channel 11, a connecting lug plate 12, a threading pipe 13, an upper limiting pipe 14, a Hall current sensor 15, a control box 16, a lower limiting pipe 17 and a positioning magnetic sheet 18, wherein the shell is a shell;

2 is a base, and 21 is a second limit channel.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings 1-4 as follows:

as shown in fig. 1-4, the application discloses transformer substation ground connection monitor terminal, including shell 1 and base 2, shell 1 and base 2 can dismantle the connection, shell 1 with be provided with locating component on the base 2 respectively, correspond on shell and the base locating component cooperate with be used for with shell 1 with base 2 butt joint installation, locating component includes location magnetic sheet 18, shell 1 with a plurality of location magnetic sheet 18 has evenly arranged respectively on the base 2, and the location magnetic sheet 18 that corresponds on shell and the base attracts each other to be used for shell 1 with base 2 butt joint installation. That is to say, be provided with four location magnetic sheets respectively on shell and base, location magnetic sheet magnetism on shell and the base is different, and the even symmetric distribution of four location magnetic sheets when with shell and base butt joint installation, when utilizing the location magnetic sheet on shell and the base to correspond the laminating contact, the location magnetic sheet mutual actuation on shell and the base carries out interim fixed with shell and base, the follow-up fastening shell and base of being convenient for.

The shell 1 and the base 2 are respectively provided with a first limiting channel 11 and a second limiting channel 21, and the first limiting channel 11 and the second limiting channel 21 form an annular locking channel for tightly mounting the shell 1 and the base 2 on the vertical rod. That is to say, set up first spacing passageway and second spacing passageway on shell and base respectively, when installing shell and base butt joint in the pole setting of transformer below, utilize first spacing passageway and the spacing passageway of second to detain and establish in the pole setting outside, cooperate the mutual actuation of the location magnetic sheet on shell and the base to fix simultaneously, and then make shell and base fix in the pole setting outside temporarily.

The shell 1 and the base 2 are respectively provided with a connecting lug plate 12, and the connecting lug plates 12 corresponding to the shell and the base are detachably connected through bolts. That is to say, still be provided with the connection otic placode respectively in the both sides of shell and base, fix the pole setting outside back at shell and base, pass two sets of connecting plates that correspond through the screw rod and consolidate the locking for shell and base connect into a whole, guarantee the stability of shell and base installation in the pole setting.

The utility model discloses a transformer neutral point ground connection downlead, including shell 1, spacing pipe, detection subassembly, control box 16, the control box 16 with 1 lower part of shell is provided with threading pipe 13 respectively, 1 inside spacing pipe that is provided with of shell, spacing pipe with threading pipe 13 is linked together, spacing pipe with wear to be equipped with transformer neutral point ground connection downlead in the threading pipe 13, be provided with the detection subassembly that is used for detecting transformer neutral point ground connection downlead running state on the spacing pipe, be provided with the control box 16 in the shell, the control box 16 with the detection subassembly electricity is connected, the control box 16 is connected with the main control system communication. That is to say, be provided with the threading pipe respectively in the upper portion and the lower part of shell, the inside spacing pipe that is provided with of shell, pass the threading pipe on shell upper portion with transformer neutral point earth connection in proper order, spacing pipe and the threading pipe of shell lower part, the detection module real-time supervision ground connection downlead current change parameter on spacing pipe, ground connection downlead current parameter real-time transmission to the control box of detection module monitoring, the control box passes through communication line real-time transmission to the control host computer in the monitor with the ground connection downlead current change parameter who acquires, the staff can know ground connection downlead current change parameter in real time, and the control host computer has historical data inquiry and historical data statistics, be convenient for the staff analysis ground connection downlead current change trend, realize the fault early warning.

The detection assembly comprises a Hall current sensor 15, the limiting pipe comprises an upper limiting pipe 14 and a lower limiting pipe 17, the upper portion of the upper limiting pipe 14 is communicated with a threading pipe on the upper portion of the shell 1, the lower portion of the upper limiting pipe 14 is connected with the shell of the Hall current sensor 15, the upper portion of the lower limiting pipe 17 is connected with the shell of the Hall current sensor 15, the lower portion of the lower limiting pipe 17 is communicated with a threading pipe 13 on the lower portion of the shell 1, and the Hall current sensor 15 is electrically connected with the control box 16. That is to say, pass upper limit pipe, hall current sensor and lower limit pipe with the ground connection downlead, utilize hall current sensor to detect ground connection downlead current variation parameter, when the sudden change of ground connection downlead current or current value change exceeded the safe threshold value scope, can tentatively judge this transformer operation anomaly, the staff can arrive the abnormal point fast in the transformer substation and go back the inspection, troubleshooting, improves transformer operation security.

In some embodiments, the upper limiting tube 14, the hall current sensor 15 and the lower limiting tube 17 are injection-molded and integrally formed. That is to say, with spacing pipe, hall current sensor and down spacing pipe design one-piece structure, improve whole device life, reduce equipment replacement number of times, reduce use cost.

In some embodiments, at least three signal interfaces are arranged on the control box 16, wherein one of the signal interfaces is electrically connected with the signal wire connector of the hall current sensor 15; the control box 16 is also provided with an environment monitoring assembly for monitoring the change of the internal environment of the shell. That is to say, at least three signal interfaces are arranged on the control box, the signal line joint of the Hall current sensor is inserted into one signal interface so that the Hall current sensor can transmit the monitored current parameters to the signal processing board in the control box, and the rest signal interfaces can facilitate the configuration of a zero sequence current transformer and a zero sequence voltage transformer on the output phase line of the subsequent external transformer, thereby improving the operation monitoring accuracy of the whole transformer.

Be provided with battery, signal processing board, signal acquisition board and communication board in the control box 16, the battery with signal processing board electric connection, signal processing board respectively with signal acquisition board and communication board electric connection, signal acquisition board respectively with signal interface and environmental monitoring subassembly electricity is connected, the communication board pass through communication bus with control host computer communication is connected, the control box with all be provided with the reservation through-hole that is used for wearing to establish communication bus on the shell. That is to say, the signal processing board receives the monitoring parameter that the signal acquisition board gathered in real time, and the monitoring parameter after the signal processing board will be handled passes through communication board teletransmission to control host computer, and the signal processing board is DSP signal processing board, and the signal acquisition board is AD signal acquisition integrated circuit board, and the communication board is RS485 communication integrated circuit board.

In some embodiments, the environmental monitoring assembly includes a temperature sensor and the electromagnetic sensor, both of which are electrically connected to the signal acquisition board. That is to say, whether dispose temperature sensor and electromagnetic sensor in the shell and be used for monitoring the electric arc that appears under the ground lead to utilize temperature sensor can monitor temperature parameter judgement condition such as whether spontaneous combustion appears in the shell, improve the variety of whole monitoring data.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A transformer substation grounding monitoring terminal is characterized by comprising a shell and a base, wherein the shell and the base are detachably connected, positioning assemblies are respectively arranged on the shell and the base, the corresponding positioning assemblies on the shell and the base are matched for butt joint installation of the shell and the base, a first limiting channel and a second limiting channel are respectively arranged on the shell and the base, and the first limiting channel and the second limiting channel are integrally formed to form an annular locking channel for tightly installing the shell and the base on a vertical rod; the utility model discloses a transformer neutral point ground connection downlead, including shell, spacing pipe, detection subassembly, control box and main control system, shell upper portion with the shell lower part is provided with the threading pipe respectively, the inside spacing pipe that is provided with of shell, spacing pipe with the threading pipe is linked together, spacing pipe with wear to be equipped with transformer neutral point ground connection downlead in the threading pipe, be provided with the detection subassembly that is used for detecting transformer neutral point ground connection downlead running state on the spacing pipe, be provided with the control box in the shell, the control box with the detection subassembly electricity is connected, the control box is connected with the main control system communication.

2. The substation grounding monitoring terminal according to claim 1, wherein the positioning assembly comprises positioning magnetic sheets, a plurality of positioning magnetic sheets are uniformly arranged on the housing and the base respectively, and the corresponding positioning magnetic sheets on the housing and the base are attracted to each other for butt-joint installation of the housing and the base.

3. The substation grounding monitoring terminal according to claim 1 or 2, wherein the housing and the base are respectively provided with a connecting ear plate, and the corresponding connecting ear plates on the housing and the base are detachably connected through bolts.

4. The substation grounding monitoring terminal according to claim 1, wherein the detection assembly comprises a hall current sensor, the limiting pipe comprises an upper limiting pipe and a lower limiting pipe, the upper portion of the upper limiting pipe is communicated with a threading pipe on the upper portion of the casing, the lower portion of the upper limiting pipe is connected with the casing of the hall current sensor, the upper portion of the lower limiting pipe is connected with the casing of the hall current sensor, the lower portion of the lower limiting pipe is communicated with the threading pipe on the lower portion of the casing, and the hall current sensor is electrically connected with the control box.

5. The substation grounding monitoring terminal of claim 4, wherein the upper limiting pipe, the Hall current sensor and the lower limiting pipe are of an injection-molded and integrally-molded structure.

6. The substation grounding monitoring terminal according to claim 4, wherein at least three signal interfaces are arranged on the control box, and one of the signal interfaces is electrically connected with a signal wire joint of the Hall current sensor; the control box is also provided with an environment monitoring assembly for monitoring the change of the internal environment of the shell.

7. The substation grounding monitoring terminal according to claim 6, wherein a storage battery, a signal processing board, a signal acquisition board and a communication board are arranged in the control box, the storage battery is electrically connected with the signal processing board, the signal processing board is electrically connected with the signal acquisition board and the communication board respectively, the signal acquisition board is electrically connected with the signal interface and the environment monitoring assembly respectively, the communication board is in communication connection with the control host through a communication bus, and reserved through holes for the communication bus to pass through are arranged in the control box and the housing.

8. The substation grounding monitoring terminal of claim 7, wherein the environmental monitoring component comprises a temperature sensor and an electromagnetic sensor, both of which are electrically connected to the signal acquisition board.