CN103941209A - Checking method based on vibration positioning GIS partial discharge equipment - Google Patents

Abstract

The invention provides a checking method based on vibration positioning GIS partial discharge equipment. The method is characterized in that a device is composed of following component of (1) a cylindrical cavity used for experiment and provided with a fixing hole, (2) a standard vibration signal generator, and (3) a to-be-checked detection device based on the vibration positioning GIS partial discharge equipment. The used method comprises the steps of firstly, using a generating method for converting coordinates of the cylindrical cavity into plane coordinates, marking points A of the coordinates like the attached map 1, secondly, utilizing the to-be-measured partial discharge positioning equipment for solving partial discharge coordinates, thirdly, repeatedly executing the step two, fourthly, solving mean values A' of the solved multiple sets of coordinates, comparing the mean values A' with the points A of the coordinates, and performing checking and debugging until the testing range is within a circle with the points A as the circle center and the radius of 10 cm. According to the method, the checking speed is high, a large amount of manpower and a large number of material resources can be saved, and the method plays an obvious role in checking of a production enterprise in the GIS partial discharge equipment.

Description

A kind of method of checking based on vibration location GIS shelf depreciation equipment

Technical field

The invention belongs to electric power system detection field, be specifically related to a kind of method of checking location GIS shelf depreciation equipment.

Background technology

Cubicle Gas-Insulated Switchgear (Gas Insulated Substation:GIS), as the main flow electrical equipment of widespread use at present, occurs so far from the mid-1960s, the history of existing more than 50 years.GIS pipe interior adopts SF6 gas as insulating medium more, and all high voltage devices are sealed in grounded metal cylinder, compare with traditional open type equipment, GIS has compact conformation, floor area is little, noise is low,, operating mechanism long without fire hazard, time between overhauls(TBO) be without oiling, without gasification, there is the features such as height operational reliability; China's use to GIS from the eighties is increasingly extensive, and particularly, in Construction of Intercity Network and transformation in recent years, GIS equipment is used widely.

But because the field intensity in GIS is very high, when there are some defects in device interior, follow the inner meeting of GIS that shelf depreciation occurs, cause its cisco unity malfunction, and supervene the signals such as electromagnetic wave, discharge pulse and ultrasonic oscillation, based on this, there are in recent years a lot of shelf depreciation positioning equipments, generally include: the shelf depreciation location based on vibration detection, the location of the shelf depreciation based on ultrasound examination, the checkout equipments such as shelf depreciation location based on UHF detection.

Yet, for the staking-out work of this type of checkout equipment is domestic, also seldom have relatedly, there is no corresponding national standard yet, especially in manufacturing enterprise, order after detection and location equipment, for check equipment, cannot respond fast this problem.Therefore provide a kind of calibration equipment for GIS Partial Discharge Detection equipment to seem particularly important.

Summary of the invention

Spy of the present invention provides a kind of method of quick check for the checkout equipment based on vibration location GIS shelf depreciation.

Check the method based on vibration location GIS shelf depreciation equipment, it is characterized in that step is as follows:

Step 1: the cylindrical cavity of checking use is utilized to generating method, make two dimensional surface coordinate system;

Step 2: standard vibration signal generator is placed in to cylindrical cavity tapping, and carries out sealing, the vibration signal that simulation shelf depreciation produces, vibration signal generator settles coordinate A point to determine, and in the coordinate system of generate, marks A point;

Step 3: its sensor of checkout equipment of location GIS shelf depreciation to be checked is attached on cylindrical cavity outer wall at random, and makes coordinate points under the same coordinate system of generate;

Step 4: allow vibration signal generator simulation office put the vibration signal of generation, use analogue signal generating position, checkout equipment to be checked location, distance D 1, D2, D3 obtain by treating check equipment; By distance D 1, D2, D3, the sensing station of take is justified as the center of circle, gets its intersection point and is its coordinate points A ', general three circles are difficult to meet at a bit, get within the scope of its three circles institute friendship and let alone a bit, repeatedly test, orient many group shelf depreciation point coordinate, get its average and be its coordinate points A ';

Sensor 1 (x1, y1), sensor 2 (x2, y2), sensor 3(x3, y3); Press following formula:

(x-x1) ²+(y-y1) ²＝D1 ²

(x-x2) ²+(y-y2) ²＝D2 ²

(x-x3) ²+(y-y3) ²＝D3 ²

By any two in above-mentioned equation, solve; Draw A ', check debugging until A ' point is the center of circle take A point, radius be in the scope of 10cm circle till.

The beneficial effect that the present invention obtains:

The method can be used for the check of factory based on vibration location shelf depreciation equipment, and service condition is loose;

It is fast that the method is checked speed, and factory is had to practical significance, can save a large amount of manpower, material resources and financial resources.

Accompanying drawing explanation

Fig. 1 checks by cylindrical cavity generate diagram

Fig. 2 is that device sensor to be checked is settled schematic diagram

Fig. 3 checks schematic diagram

Embodiment

The present invention is done to a detailed description below:

The present invention needs complete operation according to the following steps:

Step 1: the cavity that produces shelf depreciation is prepared

The cylindrical cavity of checking use is utilized to generating method, make two dimensional surface, and reserve coordinate system, as accompanying drawing 1

Step 2: standard vibration signal generator is settled

Standard vibration signal generator is placed in to cylindrical cavity tapping, the shockwave signals that simulation shelf depreciation produces and the vibration signal that causes, vibration signal generator settles coordinate to fix, and marks in the coordinate system of generate.

Step 3: its sensor of checkout equipment of location GIS shelf depreciation to be measured is attached to cylindrical cavity outer wall at random as accompanying drawing 2.

Step 4: allow vibration signal generator simulation office put the vibration signal of generation, use analogue signal generating position, checkout equipment to be checked location, can be by treating that check equipment obtains by distance D 1, D2, D3(distance D) take sensing station and justify as the center of circle, get its intersection point and be its coordinate points A ', as shown in Figure 3.

As mentioned above, sensor 1 (x1, y1), sensor 2 (x2, y2), sensor 3(x3, y3); Press following formula:

(x-x1) ²+(y-y1) ²＝D1 ²

(x-x2) ²+(y-y2) ²＝D2 ²

(x-x3) ²+(y-y3) ²＝D3 ²

By any two in above-mentioned equation, solve.Draw A ', check debugging until A ' point is the center of circle take A point, radius be in the scope of 10cm circle till.

Claims (1)

1. a method for GIS shelf depreciation equipment is located in check based on vibration, it is characterized in that step is as follows:

Step 1: the cylindrical cavity of checking use is utilized to generating method, make two dimensional surface coordinate system;

Step 2: standard vibration signal generator is placed in to cylindrical cavity tapping, and carries out sealing, the vibration signal that simulation shelf depreciation produces, vibration signal generator settles coordinate A point to determine, and in the coordinate system of generate, marks A point;

Step 3: its sensor of checkout equipment of location GIS shelf depreciation to be checked is attached on cylindrical cavity outer wall at random, and makes coordinate points under the same coordinate system of generate;

Step 4: allow vibration signal generator simulation office put the vibration signal of generation, use analogue signal generating position, checkout equipment to be checked location, distance D 1, D2, D3 obtain by treating check equipment; By distance D 1, D2, D3, the sensing station of take is justified as the center of circle, gets its intersection point and is its coordinate points A ', general three circles are difficult to meet at a bit, get within the scope of its three circles institute friendship and let alone a bit, repeatedly test, orient many group shelf depreciation point coordinate, get its average and be its coordinate points A ';

Sensor 1 (x1, y1), sensor 2 (x2, y2), sensor 3(x3, y3); Press following formula:

(x-x1) ²+(y-y1) ²＝D1 ²

(x-x2) ²+(y-y2) ²＝D2 ²

(x-x3) ²+(y-y3)2＝D3 ²

By any two in above-mentioned equation, solve; Draw A ', check debugging until A ' point is the center of circle take A point, radius be in the scope of 10cm circle till.