CN202631683U

CN202631683U - Local discharge light frequency signal tester

Info

Publication number: CN202631683U
Application number: CN 201220242826
Authority: CN
Inventors: 王毅; 王宇; 黄林
Original assignee: Neijiang Power Bureau Of Sichuan Electric Power Co ltd
Current assignee: State Grid Sichuan Electric Power Co Neijiang Power Supply Co; State Grid Corp of China SGCC
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2012-12-26
Anticipated expiration: 2022-05-28

Abstract

The utility model discloses a local discharge light frequency signal tester, belonging to a device used for generating electric sparks with different intensities and frequencies, and converting the electric sparks to electric signals to output. The end of a zero line of a secondary winding of a transformer is connected with a conductive board, a first tap, a second tap and a third tap of the secondary winding of the transformer are respectively connected with a first conductive pole, a second conductive pole and a third conductive pole through a first capacitor C1, a second capacitor C2 and a third capacitor C3, and electrode needles, electrode balls and electrode plates in pairs are correspondingly arranged between the lower end of a first electrode plate and the conductive board, between the lower end of a second electrode plate and the conductive board, and between the lower end of a third electrode plate and the conductive board. Each conductive pole extends from one conductive drum, each conductive pole is provided with a spring, and an insulation button is arranged at the top of each conductive pole. A photoelectric sampling pipe is arranged on a photoelectric converter shell. According to the tester, the electric sparks are formed through multiple discharge forms, and are converted to the electric signals to output, so that measuring information is provided for a local discharge measuring instrument. The local discharge light frequency signal tester, provided by the utility model, has the characteristics of convenience for carry and use.

Description

Shelf depreciation optical frequency signal test instrument

Technical field

The utility model relates to local discharge test device, specifically is the simulation discharge test device that power department is used to produce the electric spark that the light spoke is strong and weak, frequency is different and is converted into electric signal output.

Background technology

High voltage electric equipment is because of long-time running, and load impact etc. can make insulation course bubble gap, high temperature impurity etc. occur, under the highfield effect, shelf depreciation possibly take place.The charged protons of discharge can be clashed into the metal surface, forms electric charge and shifts, and produces luminescence phenomenon; Also can cause heat, sound, ozone etc. simultaneously, insulating material is further corroded, form vicious cycle; Finally make insulating material major injury and even puncture, cause serious potential safety hazard to electric system.

The shelf depreciation device monitoring mainly to as if photoelectricity and spectrum signal; Utilize photodetector and high frequency detecting head to convert optical radiation signal into electric signal; The power that reflects shelf depreciation through analyzing and processing to electric signal; Thereby detect the seriousness of failure judgement, send communication to production management system.

For finding the early discharge phenomenon as early as possible, the partial discharge monitoring device must be installed.Office puts in monitoring device development and the use need carry out indoor and site test, and this test large-scale boosting mode commonly used is done, and has danger, destructiveness.Adopt this part discharge analogue means, can do basic test, troubleshooting test etc., reduce the large-scale experiment number of times.

Existing shelf depreciation analogue means is as shown in Figure 1, on high-tension switch cabinets 1 such as 35kV, 110 kV, places two metalworks as sparking electrode 2 (as fastening at the disconnecting link exposed part); Select the optimum position of detector 3 acquired signal, through test cable 4, buck control desk 6 is regulated the trial voltage that is elevated to tens thousand of volts give circuit disconnecting link etc., the electrode 2 on bolt ties up to will discharge, and sends electric spark.Because this is to do the test of impacting with high pressure property, have quite danger, thus must install

fence

5,7 additional on every side and special messenger's monitoring etc. is set, very serious nervous.

Test large-scale, but not necessarily successful.In site test, the master worker of cooperation adds voltage very highly such as us, and electrode discharge intensity is very big, and naked eyes just visible light spoke reach more than one centimetre.Detectable device is not reaction unexpectedly, and the institute of pressure build-up test twice or thrice present situation condition is identical, obviously is that detector is out of joint, does not all mediate fault but analyze several times to regulate, and haves no alternative but, and have to withdraw the scene.Get back to own unit, it is that the photoelectricity sampling pipe has been broken that final inspection goes out.After the replacing, do experiment in the scene that return to, just so uneasy, because application again again, contact is again waited for and being rearranged etc., and is very passive and inconvenient.

The advantage of this site test mode is to meet operating condition, near measured result, can select the optimum position of detector storing etc.; Shortcoming is that grand style is big, and is dangerous big, and equipment damage is big, and once boosts and often in a few minutes, accomplish, so if occur detector install not to or device failure phenomenon etc., under the emergency circumstance, be difficult to judgement and mediate fault, cause test failure.

The utility model content

The purpose of the utility model provides a kind of shelf depreciation optical frequency signal test instrument; Being intended to has other electric spark through the strong and weak difference of multiple discharge type generation, frequency; And be converted into electric signal output, for partial discharge monitoring device etc. provides wideer more metrical information.

This novel purpose is achieved in that a kind of shelf depreciation optical frequency signal test instrument; Comprise that the photoelectricity sampling pipe is connected with photoelectric commutator with the frequency collection antenna; The elementary winding of transformer B is introduced the 220V civil power; First tap of transformer B secondary winding is connected to first conductive pole after being connected in series first capacitor C 1, on the first conductive pole lower end battery lead plate is installed, and second tap of transformer B secondary winding is connected to second conductive pole after being connected in series second capacitor C 2; On the second conductive pole lower end ball electrode is installed; The 3rd tap of transformer B secondary winding is connected to the 3rd conductive pole after being connected in series the 3rd capacitor C 3, and the 3rd conductive pole lower end is equipped with electrode needle, and transformer B secondary winding zero line side is connected to current-carrying plate; Be positioned on the current-carrying plate battery lead plate, ball electrode and electrode needle under through the electrode tip holder correspondence another battery lead plate is installed respectively, another ball electrode and another electrode needle; 220V, 150V and 100V voltage are exported in first tap of above-mentioned transformer, second tap and first tap respectively; Above-mentioned first, second, third conductive pole all adopts adjustable structure; This adjustable structure is: conductive tube is fixed on the wall, and conductive pole passes conductive tube from the top down, and spring is arranged on the conductive pole; Spring is positioned at the conductive tube below, and there is insulation button the conductive pole upper end.

The capacity of above-mentioned first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3 is respectively 0.47 μ f, 0.33 μ f and 0.1 μ f.

The beneficial effect of the utility model is:

1, this local discharging light signal test instrument small volume and less weight is frequently carried easily, not only can use in the laboratory, in working site and manufacturer's test, still has special role.Such as, before the large-scale pressurization discharge, can use this instrument to connect the 220V power supply earlier; Do the preparation property discharge test; After confirmation signal collection, electrooptical device etc. are in proper working order, connect power frequency high voltage test instrument (like withstand voltage appearance) again, do real, up to the discharge test of tens thousand of volts.Like this, both can guarantee success ratio, and can reduce high voltage again and be added in the damaging influence in the transmission facility, so this local discharging light signal test instrument frequently is highly significant, and is very effective.

2, the electrode tip holder on current-carrying plate, settled of this test instrument, also having another effect is to be convenient to change.Because of electrode in producing the electric spark process, the Metal Contact part is easy to burn burr, breach, cellular, so change this base part at any time, both can guarantee complete test effect, can protect the few damaged of other device again, have double action.

3, this test instrument is the instrument of electromechanical integration, adopts high magnetic conduction, many taps, 100 watts of toroidal transformers that the energy is provided, through the multichannel capacitive coupling; Adjust out electrode needle, ball electrode, the multiple discharge type of battery lead plate through to the pushing of spring strut, produce that discharge signal is strong and weak, frequency data have other electric spark; For shelf depreciation, spectral analysis and high-frequency test appearance provide information channel; Whether normal in order to detect judgment task, whether function realizes, to laboratory debugging and on-the-spot preliminary detection; Reduce tens thousand of volt high voltages the blindness of electrical equipment is applied, cause additional injuries etc.Current-carrying plate and electrode tip holder (three) are designed to replaceable, have strengthened the dirigibility of structure, more the warranty test effect.

Description of drawings

Fig. 1 is the synoptic diagram of existing high-voltage board shelf depreciation.

Fig. 2 is the structural representation of the optical frequency signal test instrument of the utility model.

Embodiment

Fig. 2 illustrates; This novel photoelectricity sampling pipe that comprises is connected with photoelectric commutator with the frequency collection antenna, and the elementary winding of transformer B is introduced the 220V civil power, is connected to first conductive pole after first tap of transformer B secondary winding (being the live wire end) serial connection, first capacitor C 1; On the first conductive pole lower end battery lead plate 7 is installed; Second tap of transformer B secondary winding is connected to second conductive pole after being connected in series second capacitor C 2, and the second conductive pole lower end is equipped with ball electrode 6, and the 3rd tap of transformer B secondary winding is connected to the 3rd conductive pole after being connected in series the 3rd capacitor C 3; The 3rd conductive pole lower end is equipped with electrode needle 5; Transformer B secondary winding zero line side is connected to current-carrying plate 8, be positioned on the current-carrying plate 8 battery lead plate 7, ball electrode 6 and electrode needle 5 under through the electrode tip holder correspondence another battery lead plate is installed respectively, another ball electrode and another electrode needle; 220V, 150V and 100V voltage are exported in first tap of transformer, second tap and first tap respectively; First, second, third conductive pole all adopts adjustable structure; This adjustable structure is: conductive tube 2 is fixed on the wall; Conductive pole 1 passes conductive tube 2 from the top down; Spring 4 is arranged on the conductive pole 1, and spring 4 is positioned at the conductive tube below or is positioned at conductive tube, and there is insulation button conductive pole 1 upper end.The capacity of first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3 is respectively 0.47 μ f, 0.33 μ f and 0.1 μ f.B is high magnetic conduction, many taps 100W toroidal transformer among Fig. 2.

Can see that from Fig. 2 the 220V civil power is connected by K switch control, through transformer B transformation; Divide 220V, 150V, the output of 100V third gear, connecing the C1 capacity respectively is that 0.47 μ f, C2 capacity are that 0.33 μ f, C3 capacity are 0.1 μ f, the above metal film electric capacity of withstand voltage 400V, utilizes capacitive reactance Xc to play discharge and connects and prevent the short circuit effect; Get into first, second and the 3rd conductive pole again; Each conductive pole has guide cylinder 2 outward, and guide cylinder is fixed on the wall through positioning pressuring plate 3, and spring 4 is fixed on the conductive pole; Be convenient to depress with resilience and recover, pair of electrodes pin, pair of electrodes ball and pair of electrical pole plate produce different discharge effect from small to large.The transformer secondary other end connects 8, three electrode tip holders of current-carrying plate (there is electrode tip holder 9 electrode needle, ball electrode below among Fig. 2, and there is electrode platform 12 the battery lead plate below) and all is connected as power supply with current-carrying plate 8.Photoelectricity sampling pipe 10 is installed on the housing of photoelectric commutator.

After understanding light source test instrument 26S Proteasome Structure and Function, no matter be in the laboratory or at the scene, according to the development and the application need of shelf depreciation device, we can operate and produce photoelectricity and frequency test signal.Existing introduction for example: toroidal transformer B secondary ceiling voltage 220V tap, after capacitor C 1 coupling, pass to first conductive pole; The other end of transformer B secondary is passed to electrode platform 12 through current-carrying plate 8, and this moment, two battery lead plates closed up gradually if depress insulation button AN1; To progressively gush out more and more stronger electric spark 11 between two battery lead plates; Thus, the photoelectricity sampling pipe 10 and the frequency antenna 13 of photoelectric commutator will be collected light wave and high-frequency signal, handle through internal conversion; Become electric signal output, send information warning to operations staff and production management system.

At C2, C3 branch road, when depressing insulation button AN2, insulation button AN3 respectively, can in pair of electrodes pin, pair of electrodes ball, inspire electric spark equally, can supply with the experiment with measuring of shelf depreciation device and use.

The photosignal power that electrode needle, ball electrode and battery lead plate are not only responded to or percussion discharges is different; And the light wave pulse that produces also is not quite similar; This will provide wideer more metrical information to being provided with the shelf depreciation device and the pertinent instruments of light belt spectrum analysis and high-frequency test function.

Claims

1. shelf depreciation signal test instrument frequently; Comprise that photoelectricity sampling pipe (10) is connected with photoelectric commutator (11) with frequency collection antenna (13), it is characterized in that; The elementary winding of transformer B is introduced the 220V civil power; First tap of transformer B secondary winding is connected to first conductive pole after being connected in series first capacitor C 1, and battery lead plate (7) is installed on the first conductive pole lower end, and second tap of transformer B secondary winding is connected to second conductive pole after being connected in series second capacitor C 2; Ball electrode (6) is installed on the second conductive pole lower end; The 3rd tap of transformer B secondary winding is connected to the 3rd conductive pole after being connected in series the 3rd capacitor C 3, and the 3rd conductive pole lower end is equipped with electrode needle (5), and transformer B secondary winding zero line side is connected to current-carrying plate (8); Be positioned on the current-carrying plate (8) battery lead plate (7), ball electrode (6) and electrode needle (5) under through the electrode tip holder correspondence another battery lead plate is installed respectively, another ball electrode and another electrode needle; 220V, 150V and 100V voltage are exported in first tap of above-mentioned transformer, second tap and the 3rd tap respectively; Above-mentioned first, second, third conductive pole all adopts adjustable structure; This adjustable structure is: conductive tube (2) is fixed on the wall; Conductive pole (1) passes conductive tube (2) from the top down; Spring (4) is arranged on the conductive pole (1), and spring (4) is positioned at the conductive tube below, and there is insulation button conductive pole (1) upper end.

2. shelf depreciation optical frequency signal test instrument according to claim 1 is characterized in that, the capacity of said first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3 is respectively 0.47 μ f, 0.33 μ f and 0.1 μ f.