CN206618829U - Carry the integral detector of partial discharge of transformer acoustic-electric of error compensation - Google Patents

Abstract

The utility model discloses the integral detector of the partial discharge of transformer acoustic-electric for carrying error compensation, belong to field transformer.Carry the integral detector of partial discharge of transformer acoustic-electric of error compensation, including housing, the Anti-slip handle that caves in is installed on the left of the housing, the Anti-slip handle that caves in is fixedly connected with housing, the Anti-slip handle outer surface of caving in is provided with power switch, the enclosure interior is provided with display screen, the display screen is fixedly connected with housing, local detector is provided with above the display screen, logical spool is installed on the left of the display screen, the logical spool runs through outward flange on the left of housing, the positive pole detection impedance and negative pole detection impedance are located on the left of logical spool, it is described to cave in Anti-slip handle and protective case junction is provided with fixed block, the protective case outer surface is provided with sound controller；It can be realized carries out error compensation detection to transformer, makes testing result more accurate, while carrying out integrated detection to partial discharge of transformer acoustic-electric.

Description

Carry the integral detector of partial discharge of transformer acoustic-electric of error compensation

Technical field

The utility model is related to field transformer, more specifically to the partial discharge of transformer for carrying error compensation Acoustic-electric one detector.

Background technology

Transformer is to change alternating voltage device using the principle of electromagnetic induction, and main member is primary coil, secondary Coil and iron core.Major function has：Voltage transformation, current transformation, impedance conversion, isolation, voltage stabilizing etc..Shelf depreciation（Following letter Claim partial discharge）Refer to certain part in insulating materials because of the electric discharge that electric field is concentrated and triggers, this electric discharge phenomena are not through whole Individual insulation, reflects that insulating materials has weak link.By detecting adjoint various sound during partial discharge, light, electrical phenomena, come Partial discharge is judged whether, is to judge that insulating inner whether there is the important means of defect at present.

And the existing integral detector of the partial discharge of transformer acoustic-electric for carrying error compensation does not carry error compensation original Reason, causes detector testing result and the problem of error is very big occurs, simultaneously, it is impossible to partial discharge of transformer acoustic-electric is entered very well Row integration detection.

The content of the invention

The technical problem to be solved：

For detector present in prior art without error compensation principle, at the same can not very well voltage device it is local The problem of acoustic-electric that discharges carries out integration detection, the purpose of this utility model is to provide the transformer for carrying error compensation part The integral detector of the acoustic-electric that discharges, realization carries error compensation, and self revision is carried out to testing result, makes partial discharge of transformer sound Electricity can carry out integrated detection.

Technical scheme：

To solve the above problems, the utility model is adopted the following technical scheme that:

Carry and installed on the left of the integral detector of partial discharge of transformer acoustic-electric of error compensation, including housing, the housing There is the Anti-slip handle that caves in, the Anti-slip handle that caves in is fixedly connected with housing, makes cave in Anti-slip handle and housing stable connection, institute State Anti-slip handle outer surface of caving in and be provided with inside power switch, the Anti-slip handle that caves in and be provided with power supply, the housing Portion is provided with display screen, and the display screen is fixedly connected with housing, makes display screen difficult for drop-off, is provided with above the display screen Local detector, is easy to locally detect transformer, the local detector and power supply are electrically connected with by wire, the display Screen left side is provided with logical spool, and the logical spool runs through outward flange on the left of housing, is easy to make negative pole detect impedance and positive pole inspection Impedance export housing is surveyed, is conducive to locally carrying out transformer discharge examination, housing and negative pole the detection impedance, positive pole detection Impedance is connected by logical spool, and the positive pole detection impedance and negative pole detection impedance are located on the left of logical spool, it is described cave in it is anti- Skating handle and protective case junction are provided with fixed block, make protective case and the Anti-slip handle stable connection that caves in, outside the protective case Surface is provided with sound controller.

It is preferred that, smooth guide rod is installed, the smooth lower end of the guide rod is provided with pressure sensor inside the protective case, The pressure sensor is connected by signal wire with sound controller, pressure sensor is detected data transfer to sound controller, described Smooth guide rod outer surface is enclosed with spring, and the lower spring end is connected with pressure sensor, and the smooth guide rod upper end is installed There is volume detection probe, for being detected to threshold value needed for acoustic-electric, measure error and compensate, the volume detection is visited Head is connected with sound controller by signal wire, and the sound controller and power supply are electrically connected with by wire.

It is preferred that, the negative pole detection impedance, positive pole detection impedance and power supply are electrically connected with by wire, in the power supply Portion is provided with isolation protective circuit, for making power good work, and each is continued permanent work with electric device.

Beneficial effect：

Compared with prior art, the beneficial effects of the utility model are：The described transformer for carrying error compensation is local The integral detector of the acoustic-electric that discharges, detects that impedance and negative pole detect impedance by positive pole, is connected in series in transformer local circuit, if inspection The pulse voltage opposite polarity in two impedances is measured, then it is assumed that inside transformer has shelf depreciation, if detecting two resistances Pulse voltage polarity on anti-is identical, then it is assumed that is external disturbance discharge signal, has reached and inside transformer shelf depreciation is entered Row detection purpose, volume detection probe detect volume, volume size decibel by spring to pressure sensor pressure The size of numerical value, carries out acoustic control error compensation, corrects measurement result, makes the local acousto-electric detection result of transformer more accurate, Detector design structure is compact, use, and shared spatial volume is than small, with portable advantage, and it can be realized pair Transformer carries out error compensation detection, makes testing result more accurate, while carrying out integration to partial discharge of transformer acoustic-electric Detection.

Brief description of the drawings

Fig. 1 is that the structure for the integral detector entirety of partial discharge of transformer acoustic-electric that the utility model carries error compensation is shown It is intended to；

Fig. 2 is the structural representation of the utility model protective case sectional view；

Fig. 3 is the theory diagram that the utility model is electrically connected with.

Label declaration in figure：

1st, housing；2nd, spool is led to；3rd, negative pole detection impedance；4th, positive pole detection impedance；5th, display screen；6th, local detector； 7th, power switch；8th, cave in Anti-slip handle；9th, protective case；10th, sound controller；11st, fixed block；12nd, volume detection probe；13rd, bullet Spring；14th, smooth guide rod；15th, pressure sensor；16th, power supply.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment；Technical scheme in the utility model embodiment is carried out Clearly and completely describe；Obviously；Described embodiment is only a part of embodiment of the utility model；Rather than whole Embodiment.Based on the embodiment in the utility model；Those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained；Belong to the scope of the utility model protection.

Embodiment 1：

Referring to Fig. 1, the structure that Fig. 1 is the integral detector entirety of partial discharge of transformer acoustic-electric for carrying error compensation is shown It is intended to.The integral detector of partial discharge of transformer acoustic-electric of error compensation, including housing 1 are carried, the left side of housing 1 is provided with Caved in Anti-slip handle 8, and the Anti-slip handle 8 that caves in is fixedly connected with housing 1, makes to cave in Anti-slip handle 8 and housing 1 is connected surely Gu, the outer surface of Anti-slip handle 8 of caving in is provided with inside power switch 7, the Anti-slip handle 8 that caves in and is provided with power supply 16, Display screen 5 is installed, the display screen 5 is fixedly connected with housing 1, makes display screen 5 difficult for drop-off, described inside the housing 1 The top of display screen 5 is provided with local detector 6, is easy to locally detect transformer, the local detector 6 and power supply 16 pass through Wire is electrically connected with, and the left side of display screen 5 is provided with logical spool 2, and the logical spool 2 runs through the left side outward flange of housing 1, just In making negative pole detect impedance 3 and the positive pole detection export housing 1 of impedance 4, be conducive to locally carrying out transformer discharge examination, it is described Housing 1 is connected with negative pole detection impedance 3, positive pole detection impedance 4 by logical spool 2, the positive pole detection impedance 4 and negative pole inspection Survey impedance 3 and be located at the logical left side of spool 2, it is described to cave in Anti-slip handle 8 and the junction of protective case 9 is provided with fixed block 11, make protection Set 9 and the stable connection of Anti-slip handle 8 that caves in, the outer surface of protective case 9 is provided with sound controller 10.

The housing 1 is used to make the connection of each component complete, and the logical spool 2 is used to exporting negative pole detection impedance 3 and just Impedance 4 is detected in pole, is easy to detect voltage device inside, and the display screen 5 is used to show testing result, the local detection Instrument 6 is used to carry out inside transformer local detection, and the power switch 7 is used to control power supply 16, the Anti-slip handle 8 that caves in For being easy to operator to hold, the protective case 9 is used to protect its internal structure, and the sound controller 10 is used for control volume Detection probe 12 and pressure sensor 15, the fixed block 11 are used to make cave in Anti-slip handle 8 and the stable connection of protective case 9.

Referring to Fig. 2, Fig. 2 is the structural representation of protective case sectional view.Smooth guide rod is installed inside the protective case 9 14, the smooth lower end of guide rod 14 is provided with pressure sensor 15, and the pressure sensor 15 passes through signal wire and sound controller 10 It is connected, pressure sensor 15 is detected data transfer to sound controller 10, the smooth outer surface of guide rod 14 is enclosed with spring 13, The lower end of spring 13 is connected with pressure sensor 15, and the smooth upper end of guide rod 14 is provided with volume detection probe 12, uses Threshold value is detected needed for acoustic-electric, is measured error and is compensated, and the volume detection probe 12 and sound controller 10 are logical Cross signal wire to be connected, the sound controller 10 and power supply 16 are electrically connected with by wire.

The volume detection probe 12 is used for the size for detecting acoustic-electric threshold value, and the spring 13 is used to extend compression pressure biography Sensor 15, the smooth guide rod 14, which is used to provide for the elongation of spring 13, depends on carrier, and the pressure sensor 15 is used for sound Decibel is converted into pressure exact numerical values recited.

Referring to Fig. 3, the theory diagram being electrically connected with.The negative pole detection impedance 3, positive pole detection impedance 4 and power supply 16 It is electrically connected with by wire, isolation protective circuit is installed inside the power supply 16, for making the steady operation of power supply 16, makes each Permanent work can be continued with electric device.

The power supply 16 is used to provide power with electric device for each, and the power switch 7 and power supply 16 are connected, the electricity Source 16 and negative pole detection impedance 3, positive pole detection impedance 4, sound controller 10, local detector 6 are connected, the sound controller 10 and pressure Sensor 15, volume detection probe 12 are connected by signal wire.

Operation principle：First, each element group is installed it is whole, when need to inside transformer carry out Partial Discharge Detection, Negative pole is detected that impedance 3 and positive pole detection impedance 4 are connected in series in transformer local circuit, detected in the auxiliary of local detector 6 Under, if detecting the pulse voltage opposite polarity in two impedances, then it is assumed that inside transformer has shelf depreciation, if detection Pulse voltage polarity on to two impedances is identical, then it is assumed that is external disturbance discharge signal, is detected when to acoustic control, volume Detection probe 12 detects the threshold value of acoustic control, and with the extension of detection time, extraneous interference can make to be wrapped in smooth slide bar 14 Spring 13 can be extended, and detection error is compensated, and the pressure value of spring 13 can be transferred to acoustic control at the moment by pressure sensor 15 On device 10, error is modified, makes Detection results more accurate.

It is described above；Only the utility model preferably embodiment；But protection domain of the present utility model is not It is confined to this；Any one skilled in the art is in the technical scope that the utility model is disclosed；According to this practicality New technical scheme and its improvement design is subject to equivalent substitution or change；It should all cover in protection domain of the present utility model It is interior.

Claims (3)

1. the integral detector of the partial discharge of transformer acoustic-electric for carrying error compensation, including housing（1）, it is characterised in that：It is described Housing（1）Left side is provided with the Anti-slip handle that caves in（8）, the Anti-slip handle that caves in（8）And housing（1）It is fixedly connected, it is described interior Fall into Anti-slip handle（8）Outer surface is provided with power switch（7）, the Anti-slip handle that caves in（8）Inside is provided with power supply（16）, institute State housing（1）Inside is provided with display screen（5）, the display screen（5）And housing（1）It is fixedly connected, the display screen（5）Top It is provided with local detector（6）, the local detector（6）And power supply（16）It is electrically connected with by wire, the display screen（5） Left side is provided with logical spool（2）, the logical spool（2）Run through housing（1）Left side outward flange, the housing（1）With negative pole inspection Survey impedance（3）, positive pole detection impedance（4）By leading to spool（2）It is connected, the positive pole detects impedance（4）Detect and hinder with negative pole It is anti-（3）Positioned at logical spool（2）Left side, the Anti-slip handle that caves in（8）And protective case（9）Junction is provided with fixed block（11）, The protective case（9）Outer surface is provided with sound controller（10）.

2. the integral detector of the partial discharge of transformer acoustic-electric for carrying error compensation according to claim 1, its feature exists In：The protective case（9）Inside is provided with smooth guide rod（14）, the smooth guide rod（14）Lower end is provided with pressure sensor （15）, the pressure sensor（15）Pass through signal wire and sound controller（10）It is connected, the smooth guide rod（14）Appearance bread It is wrapped with spring（13）, the spring（13）Lower end and pressure sensor（15）It is connected, the smooth guide rod（14）Install upper end There is volume detection probe（12）, the volume detection probe（12）And sound controller（10）It is connected by signal wire, the acoustic control Device（10）And power supply（16）It is electrically connected with by wire.

3. the integral detector of the partial discharge of transformer acoustic-electric for carrying error compensation according to claim 1, its feature exists In：The negative pole detects impedance（3）, positive pole detection impedance（4）And power supply（16）It is electrically connected with by wire, the power supply（16） Inside is provided with isolation protective circuit.