CN202816254U - Integrated training device for power cable test and fault detection - Google Patents
Integrated training device for power cable test and fault detection Download PDFInfo
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- CN202816254U CN202816254U CN 201220548038 CN201220548038U CN202816254U CN 202816254 U CN202816254 U CN 202816254U CN 201220548038 CN201220548038 CN 201220548038 CN 201220548038 U CN201220548038 U CN 201220548038U CN 202816254 U CN202816254 U CN 202816254U
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000012549 training Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 230000004807 localization Effects 0.000 claims description 35
- 238000007689 inspection Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004088 simulation Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 239000004615 ingredient Substances 0.000 description 1
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Abstract
The utility model relates to an integrated training device for power cable test and fault detection. The main technical features of the integrated training device are that the integrated training device comprises a system main control computer, a cable fault ranging unit, a sheath fault ranging unit, a high voltage testing unit, a series resonance test unit and an insulation resistance measuring unit, wherein the system main control computer is respectively connected with the cable fault ranging unit, the sheath fault ranging unit, the series resonance test unit and the insulation resistance measuring unit through serial ports, and the high voltage testing unit is respectively connected with the cable fault ranging unit and the sheath fault ranging unit. According to the integrated training device, various testing devices are integrated, the power cable test and fault detection training function is realized, the stable simulation environment for field test of cables can be provided, and the integrated training device can be used repeatedly; and the strict demand for complicated testing environmental conditions is effectively satisfied, and the training effect and safety are greatly improved.
Description
Technical field
The utility model relates to a kind of training on electric power device, especially a kind of power cable test and the integrated training apparatus of inspection of fault.
Background technology
Power cable is material the most frequently used in the electric system.Because various power cables all have different performances, therefore need to test its performance; Simultaneously power cable in use also can break down, and how in time detection failure is to carry out the important prerequisite of power equipment maintaining, therefore, is necessary that the electric power worker is carried out power cable test method and power cable fault to survey to seek effectively and train.At present, existing training method is the student need to prepare a large amount of testing tools, has wasted a large amount of resources, in addition, because power cable test environment and failure condition are comparatively complicated, and stable test environment or various failure condition can not be provided, and have affected result of training.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of reasonable in design, economize on resources and power cable test and the integrated training apparatus of inspection of fault of stability test environment can be provided.
The utility model solves its technical matters and takes following technical scheme to realize:
The integrated training apparatus of a kind of power cable test and inspection of fault, comprise system master computing machine, cable fault localization unit, sheath fault localization unit, Hi-pot test unit, series resonance test unit and insulation measurement unit, the system master computing machine is connected with cable fault localization unit, sheath fault localization unit, series resonance test unit and insulation measurement unit respectively by serial ports, and the Hi-pot test unit is connected with cable fault localization unit, sheath fault localization unit respectively.
And, what described cable fault localization unit adopted is T905 cable fault localization instrument, what described sheath fault localization unit adopted is TH100 sheath fault locator, and what described series resonance test unit adopted is HVFRF-220/22X5 type series resonance instrument; The instrument with megohmmeter test function that described insulation measurement unit adopts.
Advantage of the present utility model and good effect are:
The utility model integrates various testing apparatuss, power cable test and inspection of fault training function have been realized, equipment is controlled by the system master computing machine is unified when work, the simulated environment of stable on-the-spot test cable is provided for the student, and can reuse, effectively solve the harsh requirement of experimental enviroment complicated condition, greatly improved result of training and security.
Description of drawings
Fig. 1 is system of the present utility model connection diagram;
Fig. 2 is the circuit block diagram of Hi-pot test unit.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The integrated training apparatus of a kind of power cable test and inspection of fault, as shown in Figure 1, comprise system master computing machine, cable fault localization unit, sheath fault localization unit, Hi-pot test unit, series resonance test unit and insulation measurement unit and be installed in the operating console, the system master computing machine is connected with cable fault localization unit, sheath fault localization unit, series resonance test unit and insulation measurement unit respectively by serial ports, and the Hi-pot test unit is connected with cable fault localization unit, sheath fault localization unit respectively.The below describes respectively each ingredient of system:
Described system master computing machine is coordinated control by various communication interfaces to cable fault localization unit, sheath fault localization unit, series resonance test unit and insulation measurement unit, the functions such as the insulating sheath test of Insulation test, inspection of fault and the high-tension cable of realization power cable, sheath inspection of fault.
Described Hi-pot test unit is connected with cable fault localization unit, sheath fault localization unit, for cable fault localization unit, sheath fault localization unit provide high-voltage power supply.As shown in Figure 2, the Hi-pot test unit is connected and composed by power control unit, signal conversion unit, electric capacity converting unit, sound signal output unit, second pulse coupling unit, high direct voltage control module and discharge switch.Wherein:
Power control unit comprises gauge tap and the control knob on the panel, is mainly used to control power supply and the protection of each unit.
Signal conversion unit is mainly used to realize control and the conversion between low voltage pulse signal, audio output signal, pulsed current signal and the second pulse signal.During high voltage control, by the action of pilot relay, pulsed current signal and second pulse signal are sent into respectively range cells, realize the conversion and control of signal; During low voltage control, by the action of pilot relay, the signal that high pressure is gathered separates with the low voltage experiment signal; During audio frequency control, by the action of pilot relay, connect respectively audio test signal passage and low voltage pulse signal test channel.
The electric capacity converting unit is mainly used to realize that electric capacity transfers the files the capacitance that each grade correspondence is different and electric pressure.In use can carry out charged direct gearshift switches.When being adjusted to 4 μ F shelves, capacitance is 4 μ F, and inside is 4 16 μ F pulsed capacitance series circuits, connects alternating current 220V, and corresponding VD is 32kV; When being adjusted to 16 μ F shelves, capacitance is 16 μ F, and inside is two series connection, two parallel circuits of 4 16 μ F pulsed capacitances, connects and exchanges 110V, and corresponding VD is 16kV; When being adjusted to 64 μ F shelves, capacitance is 64 μ F, and inside is the parallel circuit of 4 16 μ F pulsed capacitances, connects to exchange 55V, and corresponding VD is 8kV.
The sound signal output unit produces and is used for path detection and cable discriminating sound signal, also can be used for the accurate location of low-resistance fault.During operation, can in cable, inject 500Hz, 1kHz, 8kHz, 33kHz, 66kHz, 93kHz by mode direct-connected or coupling, wherein 500Hz and 1kHz are combination frequency, cooperate signal receiver realization cable to follow the tracks of the prompt facility of correcting errors, and the intelligent uniqueness that also can be used for cable is differentiated.
The second pulse coupling unit: when method of testing was transformed into secondary pulse mode, the second pulse coupling unit provided the dc energy of arc maintenance.Adopt the power frequency rectification of boosting, have the advantages that capacity is large, overload capacity is strong, circuit structure is succinct, reliability is high.Inner large current charge, the large bulk capacitance of adopting in this unit is to cable discharge; This unit carries out afterflow when high-voltage pulse generator punctures cable, prolongs the breakdown conditions retention time; Gather the second pulse signal, carry out the second pulse range finding.
High direct voltage control module Main Function is to produce negative direct current high voltage, is used for the breakdown fault cable, cooperates to carry out pulse current and second pulse test, cooperates and carries out pinpoint.Arrange and the control of manual voltage regulator according to the Capacity control switch gearing, can export respectively 0～32kV(4 μ F), 0～16kV(16 μ F), 0～8kV(64 μ F) continuously adjustable negative polarity high direct voltage.Direct current, impulse discharge, three kinds of working methods of periodic discharging can be set; The discharge cycle of periodic discharging can arrange (4～15s) voluntarily.
Discharge switch is used at power-off or when cutting off the power supply suddenly, dump energy in the instrument is discharged automatically, guarantees operator safety.
What described cable fault localization unit adopted is T905 cable fault localization instrument, this cable fault localization instrument can carry out the fault localization of Method of Cable Trouble Point, according to its set-up mode, can adopt respectively action of low-voltage pulse, pulse current, second pulse (mainly for abort situation) to carry out distance test to tested cable; Test data pattern is presented on the system master computer screen curtain, test waveform is analyzed, determine fault distance; Can also according to the characteristic parameters of tested cable, as required waveform printout or other modes be preserved.
What described sheath fault localization unit adopted is TH100 sheath fault locator, this sheath fault locator adopts dc resistance method, can quick and precisely carry out the range finding of sheath fault, the range finding result of sheath fault can directly be presented on the system master computer screen curtain according to the cable data that the arranges result that will find range.
What described series resonance test unit adopted is HVFRF-220/22X5 type series resonance instrument; This humorous Vibration Meter utilizes reactor and test product capacitances in series to form the LC resonant tank, by the regulation output frequency, finds tuning-points, obtains higher trial voltage at test specimen.
The instrument with megohmmeter test function that described insulation measurement unit adopts, the system master computing machine is tested insulation resistance automatically by megohmmeter, and test result is presented on the system master computer screen curtain.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to equally the scope of the utility model protection.
Claims (2)
1. a power cable test and the integrated training apparatus of inspection of fault, it is characterized in that: comprise system master computing machine, cable fault localization unit, sheath fault localization unit, Hi-pot test unit, series resonance test unit and insulation measurement unit, the system master computing machine is connected with cable fault localization unit, sheath fault localization unit, series resonance test unit and insulation measurement unit respectively by serial ports, and the Hi-pot test unit is connected with cable fault localization unit, sheath fault localization unit respectively.
2. the integrated training apparatus of power cable test according to claim 1 and inspection of fault, it is characterized in that: what described cable fault localization unit adopted is T905 cable fault localization instrument, what described sheath fault localization unit adopted is TH100 sheath fault locator, and what described series resonance test unit adopted is HVFRF-220/22X5 type series resonance instrument; The instrument with megohmmeter test function that described insulation measurement unit adopts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220548038 CN202816254U (en) | 2012-10-24 | 2012-10-24 | Integrated training device for power cable test and fault detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220548038 CN202816254U (en) | 2012-10-24 | 2012-10-24 | Integrated training device for power cable test and fault detection |
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| CN202816254U true CN202816254U (en) | 2013-03-20 |
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| CN 201220548038 Expired - Lifetime CN202816254U (en) | 2012-10-24 | 2012-10-24 | Integrated training device for power cable test and fault detection |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617754A (en) * | 2013-08-30 | 2014-03-05 | 国家电网公司 | Fault simulation and test simulation system for power cables |
| CN104483592A (en) * | 2014-12-05 | 2015-04-01 | 国家电网公司 | Cable fault test training system based on actually-measured cable fault wave shape and method thereof |
| CN105303927A (en) * | 2014-06-07 | 2016-02-03 | 国家电网公司 | Medium-voltage cable electrical test skill training system |
| CN105913712A (en) * | 2016-04-21 | 2016-08-31 | 国网江苏省电力公司职业技能训练基地 | Simulation mutual inductor practical training system |
| CN104215865B (en) * | 2014-10-04 | 2016-12-07 | 远东电缆有限公司 | GE cable for locomotives big current overloading test method |
| CN106443351A (en) * | 2016-11-02 | 2017-02-22 | 南京工程学院 | System and method for detecting faults of multi-core cables of ships |
| CN111123047A (en) * | 2019-12-17 | 2020-05-08 | 威凯检测技术有限公司 | Integrated automatic detection system for wire and cable voltage and insulation resistance tests |
| CN112289118A (en) * | 2020-11-12 | 2021-01-29 | 深圳供电局有限公司 | Multistation power cable fault simulation range finding training system |
-
2012
- 2012-10-24 CN CN 201220548038 patent/CN202816254U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617754A (en) * | 2013-08-30 | 2014-03-05 | 国家电网公司 | Fault simulation and test simulation system for power cables |
| CN103617754B (en) * | 2013-08-30 | 2015-11-18 | 国家电网公司 | Power cable fault simulation test analogue system |
| CN105303927A (en) * | 2014-06-07 | 2016-02-03 | 国家电网公司 | Medium-voltage cable electrical test skill training system |
| CN104215865B (en) * | 2014-10-04 | 2016-12-07 | 远东电缆有限公司 | GE cable for locomotives big current overloading test method |
| CN104483592A (en) * | 2014-12-05 | 2015-04-01 | 国家电网公司 | Cable fault test training system based on actually-measured cable fault wave shape and method thereof |
| CN105913712A (en) * | 2016-04-21 | 2016-08-31 | 国网江苏省电力公司职业技能训练基地 | Simulation mutual inductor practical training system |
| CN106443351A (en) * | 2016-11-02 | 2017-02-22 | 南京工程学院 | System and method for detecting faults of multi-core cables of ships |
| CN111123047A (en) * | 2019-12-17 | 2020-05-08 | 威凯检测技术有限公司 | Integrated automatic detection system for wire and cable voltage and insulation resistance tests |
| CN111123047B (en) * | 2019-12-17 | 2022-07-12 | 威凯检测技术有限公司 | Integrated automatic detection system for wire and cable voltage and insulation resistance tests |
| CN112289118A (en) * | 2020-11-12 | 2021-01-29 | 深圳供电局有限公司 | Multistation power cable fault simulation range finding training system |
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Granted publication date: 20130320 |
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