CN213750171U

CN213750171U - GIS partial discharge detection system

Info

Publication number: CN213750171U
Application number: CN202022917191.1U
Authority: CN
Inventors: 宋志平; 沈晓贤; 郑子涵
Original assignee: JIANGSU HNP ELECTRIC TECHNOLOGY CO LTD
Current assignee: JIANGSU HNP ELECTRIC TECHNOLOGY CO LTD
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-20
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a GIS partial discharge detection system, including UHF sensor and hand-held type partial discharge detector, after the sensor shell of UHF sensor was pressed from both sides between two connecting rods of clamping, the connecting rod was fixed by the lock nut of threaded connection on the erection column, wherein the erection column sets firmly on the sensor shell skirt; the UHF sensor is clamped on the annular convex structure of the basin-type insulator through two U-shaped clamping parts connected to the end parts of the two connecting rods on a clamping clip; the UHF sensor upper connector is connected with one end of a signal wire, the other end of the signal wire is electrically connected with an input end of the handheld partial discharge detector, and a palm sleeve convenient to hold is arranged on the handheld partial discharge detector. The utility model discloses be connected with hand-held type partial discharge detector electricity after fixing UHF sensor fast and surely, conveniently patrol and examine.

Description

GIS partial discharge detection system

Technical Field

The utility model relates to an on-line monitoring system, more specifically say, relate to a GIS partial discharge detecting system.

Background

GIS (gas insulated fully-closed combined electrical apparatus) has higher safe reliability, but GIS inevitably has insulation defects to influence its long-term reliability due to various reasons such as processing, transportation, field assembly and the like. The defects are usually tiny and hidden, so that the breakdown is not enough to be caused immediately in a power frequency voltage withstand test, but partial discharge can be generated under the action of normal operating voltage after the device is put into operation, so that the defects are gradually developed and enlarged, and even the whole insulation breakdown or surface flashover is caused, thereby threatening the safe operation of the device.

GIS faults are few, and once faults occur, the consequences are quite serious. GIS maintenance work is relatively complicated and long in period, and the power failure range of the GIS is also related to non-fault elements sometimes; and the process requirement of GIS maintenance is very meticulous, just can cause the maintenance quality problem carelessly a little. Therefore, it is very important and urgent to evaluate the running state of the equipment from the outside by using an undecomposed method, i.e. to monitor and repair the state of the GIS equipment.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to provide an it is foretell not enough, provide a GIS partial discharge on-line monitoring system, adopt the technical scheme of the utility model, simple structure is connected with hand-held type partial discharge detector electricity after fixing UHF sensor fast and surely, conveniently patrols and examines.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a GIS partial discharge detection system, including UHF sensor and hand-held type partial discharge detector, after the sensor shell of UHF sensor was pressed from both sides between two connecting rods of clamping, the connecting rod was fixed by the lock nut of threaded connection on the erection column, wherein the erection column sets firmly on the sensor shell skirt; the UHF sensor is clamped on the annular convex structure of the basin-type insulator through two U-shaped clamping parts connected to the end parts of the two connecting rods on a clamping clip; the UHF sensor upper connector is connected with one end of a signal wire, the other end of the signal wire is electrically connected with an input end of the handheld partial discharge detector, and a palm sleeve convenient to hold is arranged on the handheld partial discharge detector.

Furthermore, two skirts of the sensor shell are provided with rubber sheets, one end of each rubber sheet is sleeved on the mounting column and then is pressed and fixed by the connecting rod and the locking nut, and the extending parts on two sides of the other end of each rubber sheet are respectively sleeved on the screw caps and the screw rods on two sides of the annular protruding structure.

Furthermore, two sides of the holding part of the hand-held partial discharge detector are both provided with finger grooves convenient to hold.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a GIS partial discharge detection system, its UHF sensor's sensor shell is pressed from both sides behind two connecting rods of clamping, the connecting rod is fixed by the lock nut of threaded connection on the erection column, wherein the erection column sets firmly on sensor shell skirt, and two skirts of sensor shell all are provided with the sheet rubber, a pot head of sheet rubber is established and is compressed tightly fixedly by connecting rod and lock nut behind the erection column, simple structure, it is convenient to connect, connect clamping and sheet rubber on the UHF sensor, make things convenient for the UHF sensor to install on annular bulge structure fast and firmly through the clamping, and install the fixed position not limit, make the UHF sensor laminate the periphery of annular bulge structure more through the sheet rubber;

(2) the utility model discloses a GIS partial discharge detection system, its UHF sensor is last the connector is connected with one end of signal line, the other end of signal line is connected with the input electricity on the hand-held type partial discharge detector, hand-held type partial discharge detector convenient to carry, the outdoor use of being convenient for, wherein be provided with the palm cover of conveniently holding on the hand-held type partial discharge detector, the hand-held type partial discharge detector is held again after the palm passes the palm cover during use, it is more stable to take, can avoid the landing to break;

(3) the utility model discloses a GIS partial discharge detection system, the portion of gripping both sides of its hand-held type partial discharge detector have all processed the finger groove of conveniently holding and taking for it is more stable to hold and take.

Drawings

Fig. 1 is a connection structure diagram of a GIS partial discharge detection system of the present invention;

fig. 2 is the utility model discloses a structural schematic diagram of UHF sensor among GIS partial discharge detection system.

The reference numerals in the schematic drawings illustrate: 1. a UHF sensor; 1-1, mounting a column; 2. a hand-held partial discharge detector; 2-1, finger grooves; 3-1, connecting rod; 3-2, a U-shaped clamping part; 4. locking the nut; 5. an annular raised structure; 6. a signal line; 7. a palm cover; 8. a rubber sheet.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

With reference to fig. 1 and 2, the GIS partial discharge detection system of the present embodiment includes a UHF sensor 1 and a handheld partial discharge detector 2, after a sensor housing of the UHF sensor 1 is clamped between two connecting rods 3-1 of a clamp, the connecting rods 3-1 are fixed by a lock nut 4 screwed on an installation column 1-1, wherein the installation column 1-1 is fixedly arranged on a skirt of the sensor housing; the UHF sensor 1 is clamped on an annular convex structure 5 of the basin-type insulator through two U-shaped clamping parts 3-2 connected to the end parts of the two connecting rods on a clamp; rubber sheets 8 are arranged on two skirts of the sensor shell, one end of each rubber sheet 8 is sleeved on the mounting column 1-1 and then is pressed and fixed by the connecting rod 3-1 and the locking nut 4, and extending parts on two sides of the other end of each rubber sheet 8 are respectively sleeved on nuts and screw rods on two sides of the annular protruding structure 5; the clamp and the rubber sheet are connected to the UHF sensor, the UHF sensor can be rapidly and stably installed on the annular convex structure conveniently through the clamp, the installation and fixing position is not limited, and the UHF sensor is enabled to be more attached to the circumferential surface of the annular convex structure through the rubber sheet;

continuing to fig. 1, a connector on the UHF sensor 1 is connected with one end of a signal line 6, and the other end of the signal line 6 is electrically connected with an input end on the handheld partial discharge detector 2, wherein a palm sleeve 7 convenient to hold is arranged on the handheld partial discharge detector 2; when the UHF sensor is used, the UHF sensor 1 is quickly installed and fixed in a manner that the two U-shaped clamping parts 3-2 of the clamping clamp are clamped on the annular bulge structure 5 of the basin-type insulator, and then two extending parts of the rubber sheet 8 are respectively sleeved on the screw caps and the screw rods on two sides of the annular bulge structure 5, so that the attaching degree of the UHF sensor 1 and the circumferential surface of the annular bulge structure is ensured; then, the UHF sensor 1 and the handheld partial discharge detector 2 are connected through the signal line 6, finally, the palm penetrates through the palm sleeve and then the handheld partial discharge detector is held for detection, the taking is more stable, the sliding and the falling are avoided, finger grooves 2-1 convenient to hold are machined in the two sides of the holding part of the handheld partial discharge detector 2, and the holding is more stable.

The utility model discloses a GIS partial discharge detecting system, simple structure, fast and surely fix behind the UHF sensor with hand-held type partial discharge detector electricity be connected, conveniently patrol and examine.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A GIS partial discharge detection system is characterized in that: the device comprises a UHF sensor (1) and a handheld partial discharge detector (2), wherein a sensor shell of the UHF sensor (1) is clamped between two connecting rods (3-1) of a clamp, the connecting rods (3-1) are fixed by locking nuts (4) which are in threaded connection with mounting columns (1-1), and the mounting columns (1-1) are fixedly arranged on the skirts of the sensor shell; the UHF sensor (1) is clamped on an annular convex structure (5) of the basin-type insulator through two U-shaped clamping parts (3-2) which are connected to the end parts of the two connecting rods on a clamping clip; the UHF sensor (1) is connected with one end of a signal wire (6) through a connector, the other end of the signal wire (6) is electrically connected with an input end of the handheld partial discharge detector (2), and a palm sleeve (7) convenient to hold is arranged on the handheld partial discharge detector (2).

2. The GIS partial discharge detection system of claim 1, wherein: the sensor shell is characterized in that rubber sheets (8) are arranged on two skirts of the sensor shell, one end of each rubber sheet (8) is sleeved on the mounting column (1-1) and then is pressed and fixed by the connecting rod (3-1) and the locking nut (4), and the extending parts on two sides of the other end of each rubber sheet (8) are respectively sleeved on the nuts and the screw rods on two sides of the annular protruding structure (5).

3. The GIS partial discharge detection system of claim 2, wherein: and finger grooves (2-1) convenient to hold are machined on two sides of a holding part of the handheld partial discharge detector (2).