CN101706530B - Cable conductor DC resistance on-line detection device and method thereof - Google Patents

Cable conductor DC resistance on-line detection device and method thereof Download PDF

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Publication number
CN101706530B
CN101706530B CN2009103091622A CN200910309162A CN101706530B CN 101706530 B CN101706530 B CN 101706530B CN 2009103091622 A CN2009103091622 A CN 2009103091622A CN 200910309162 A CN200910309162 A CN 200910309162A CN 101706530 B CN101706530 B CN 101706530B
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China
Prior art keywords
cable conductor
resistance
tank
anchor clamps
detection device
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Expired - Fee Related
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CN2009103091622A
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Chinese (zh)
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CN101706530A (en
Inventor
叶金龙
郑宏
周益民
阮淑萍
张守凤
陈振
王爱平
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Zhejiang Wanma Co Ltd
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ZHEJIANG WANMA CABLE CO Ltd
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Abstract

The invention relates to a cable conductor DC resistance on-line detection device and a method thereof, aiming at solving the problems of the prior art that detection to a cable conductor needs to cut a section of the cable conductor, which brings inconvenience to operation and causes material waste; the detection is apt to be influenced by air humidity, air temperature and sample temperature and other factors; and the accuracy of detection results is low. The cable conductor DC resistance on-line detection device comprises a resistance tester, a mobile trolley, a potential clamp and a current clamp, wherein the resistance tester is arranged on the mobile trolley; a water tank for containing cables is arranged on the top end of the mobile trolley; the potential clamp and the current clamp are used for clamping cables and connected on the resistance tester through wires. The invention has the advantages of optional movement, convenient use, waster reduction and high detection structure accuracy.

Description

A kind of cable conductor DC resistance on-line detection device and method
Technical field
The present invention relates to a kind of cable conductor pick-up unit, especially relate to a kind of cable conductor DC resistance on-line detection device and method.
Background technology
Direct current resistance is a very important index in the cable electrical property Interventions Requested.General cable conductor detecting instrument all is to be placed in the testing laboratory, is inconvenient to move, if will test cable conductor the time; Need intercepting one end cable conductor to take in the laboratory and carry out, not only inconvenient, also cause the waste of material; Because every cable of this method test needs 1.5x2 rice to do test. cut 3 meters as producing the every coring of 240mm2 conductor; Add up to 6kg copper just to waste, and cable conductor is loose because of blocking, causes loose contact and influence the accuracy of measurement.In addition, cable conductor generates heat when stranded, needs constant temperature more than 2 hours before the test, wastes time and energy, and cable also can receive the influence like many factors such as air humidity, temperature when detecting, and makes that the result who measures is inaccurate.China's utility model 200820127539.3 discloses a kind of cable detecting device, comprises the cable link block that is used to connect tested cable, the detection display module that links to each other with the cable link block; The power module that links to each other with the detection display module; The detection module that is connected with power module during detection streamer, inserts the cable link block with cable; Press test button, can show resistance value on the resistance indicator gauge.General this device detection streamer that adopts needs intercepting one end cable, has caused waste of material, and receive during cable detection air humidity, air themperature, sample temperature, etc. factor disturb, the testing result accuracy is not high.
Summary of the invention
The present invention solves in the prior art need intercepting one end cable conductor when cable conductor detected; Inconvenient operation can cause waste of material inconvenient, and receives factor affecting such as air humidity, air themperature, specimen temperature when detecting; The problem that the testing result accuracy is not high; A kind of conveniently moving is provided, has saved material, and do not received the cable conductor DC resistance on-line detection device of factor affecting such as air humidity, air themperature, specimen temperature.
Another goal of the invention of the present invention provides a kind of cable conductor DC resistance on-line detection method.
Above-mentioned technical matters of the present invention mainly is able to solve through following technical proposals: a kind of cable conductor DC resistance on-line detection device, comprise resistance meter, and it is characterized in that: include travelling car; Resistance meter is arranged on the travelling car; The travelling car top is provided with the tank that is used to hold cable, also comprises the current potential anchor clamps and the electric current anchor clamps that are used to be interposed on the cable, and these current potential anchor clamps and electric current anchor clamps are connected on the resistance meter through electric wire; On travelling car, erect and be provided with a pair of up-down back up pad; This up-down back up pad upper end is above the travelling car top, and on the up-down back up pad, being respectively arranged with can be along the go up and down carriage of adjusting of up-down back up pad, and said tank is arranged on the carriage; On the tank both ends of the surface, be respectively arranged with open slot, open slot is provided with fluid sealant.Resistance meter is installed on the travelling car among the present invention; Through travelling car cable conductor DC resistance on-line detection device is arbitrarily detected at the scene of moving to, easy to use, need not one section cable of special intercepting and detect; Significantly reduced waste; Reduced production cost, solved simultaneously, caused loose contact and influence the problem of the accuracy of measurement because cable conductor is loose because of blocking; The present invention is arranged on cable conductor in the tank, through deionized water cable conductor is lowered the temperature, and has significantly reduced the detection required time, the influence of having avoided factors such as air themperature, air humidity that direct current resistance is detected simultaneously.This up-down back up pad and carriage are formed an elevating mechanism, can regulate the height of tank according to the height of cable conductor on the wire twisting machine, guarantee that cable conductor seals in tank, stablizes.The up-down back up pad is installed in the travelling car both sides respectively, fixes through bolt and travelling car.The blind end of this open slot is semicircle, is convenient to that cable conductor is stable to be placed, in cable conductor is placed on open slot after, fluid sealant is arranged in the open slot the tank sealed at both ends, can stop water in the tank to outflow like this.
A kind of preferred version as such scheme is respectively arranged with regulating tank on the up-down back up pad, carriage is provided with bolt, and this bolt is used nut screwing clamping after passing regulating tank, and carriage is fixed on the up-down back up pad.This carriage is L-shaped; On an end of this L shaped bottom, be provided with downward flange; The web joint that formation links to each other with the up-down back up pad, bolt passes web joint and regulating tank, with behind the nut screwing clamping carriage being fixed on the up-down back up pad; Then this carriage and up-down back up pad just form the base body of a U shape, and tank just in time is placed in this base body.
A kind of preferred version as such scheme is provided with several osculums in the bottom of tank, is connected with drainpipe on the osculum.Can be after detecting end with the convenient discharge of the water in the tank.
As a kind of preferred version of such scheme, travelling car is provided with handle.This handle makes things convenient for the user to promote travelling car.
A kind of cable conductor DC resistance online test method is characterized in that: this method may further comprise the steps:
A. cable conductor DC resistance on-line detection device is shifted onto the position at cable conductor place; Regulate the height of tank; Make cable conductor be positioned at tank, the blind end of tank openings at two ends groove matches with cable conductor, then in open slot around on fluid sealant and by real;
B. in tank, inject water and be immersed in water fully until cable conductor;
C. current potential anchor clamps and electric current anchor clamps are interposed on the cable conductor, two electric current anchor clamps are interposed in the current potential anchor clamps outside respectively, and the opening resistor tester begins to measure resistance.
As a kind of preferred version of such scheme, the distance between the two current potential anchor clamps is at least 1m, and the distance between the two electric current anchor clamps is at least 1.5 times of cable conductor girth.The numerical value that makes the resistance test instrument detect is more accurate.
As a kind of preferred version of such scheme, the water that injects in the tank is deionized water.The numerical value that makes the resistance test instrument detect is more accurate.
Therefore, the present invention has the following advantages: 1. pick-up unit is arranged on the travelling car, arbitrarily motion detection device conveniently uses to the position that needs; 2. need not the intercepting cable conductor and carry out side-looking, significantly reduced waste, reduced production cost; 3. cable conductor is arranged in the water and detects, do not receive factor affecting such as air themperature, air humidity, specimen temperature, improved the detection architecture accuracy.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is a kind of side-looking structural representations of the present invention;
Accompanying drawing 3 is a kind of A-A cut-open views of Fig. 1.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment:
According to illustrated in figures 1 and 2, a kind of cable conductor DC resistance on-line detection device of present embodiment comprises a travelling car 1; This travelling car main body is a cuboid, and this main body can be used as a tool box, is provided with in main body one side to be used to promote the handle 10 that dolly is used; Be placed with resistance meter 2 on travelling car main body top, also be provided with the elevating mechanism that is made up of up-down back up pad 3 and carriage 9 on the travelling car, this up-down back up pad 3 is provided with a pair of; Vertically be arranged on travelling car 1 both sides respectively, this up-down back up pad lower end is provided with the flange that is used to connect, and this flange and up-down back up pad surface are perpendicular; Paste mutually with the travelling car side; Through bolt, this up-down back up pad upper end exceeds travelling car main body upper surface, and the up-down back up pad exceeds this section of travelling car body surfaces and is provided with regulating tank 31.9 one-tenth on this carriage is L shaped; On an end of L shaped body bottom, form web joint to being arranged with flange; This web joint and up-down back up pad fit; Bolt passes web joint and regulating tank 31, through fastening nut carriage is fixed on the up-down back up pad then, and this carriage and up-down back up pad just form the base body of a U shape.If want the bracket height, then unclamp nut, carriage is gone up and down, regulate the back fastening nut that finishes.Carriage is provided with tank 4, and this tank adopts organic glass to process, and is as shown in Figure 3, is respectively arranged with open slot 12 on the tank both ends of the surface, and it is semicircle that this open slot blind end becomes, and in open slot, is provided with fluid sealant 11.Regulate the tank height and be positioned at tank until cable conductor 7; Open slot on the aquatic products both ends of the surface and cable conductor 7 are nested, and fluid sealant is arranged between open slot and the cable conductor, plays sealing process; Sealing glue is elastic body; Its shape matches with the open slot shape, and the centre has through hole, and through hole to fluid sealant one end is provided with a crack; Can fluid sealant be buckled on the cable conductor in the time of use, cable conductor is surrounded, and then regulate the tank height, this place of cable conductor that is wrapped in fluid sealant is clamp-oned in the open slot, form the sealing shape; Perhaps sealing glue shape can be strip, after cable conductor is in open slot, is wrapped between open slot and the cable conductor, forms the sealing shape.Also be provided with several osculums 41 at bottom of gullet, be connected with drainpipe 8 on the osculum.On cable conductor, be gripped with current potential anchor clamps 5 and electric current anchor clamps 6, current potential anchor clamps and electric current anchor clamps are connected by electrical wiring on the resistance meter respectively.
According to the device in the present embodiment; Its detection method is: 1. the position of cable conductor DC resistance on-line detection device being shifted onto the cable conductor place; Bracket height is then promptly regulated the height of tank, makes cable conductor be positioned at tank; Cable conductor is embedded in the open slot, then in open slot around on fluid sealant and by real; Also can fluid sealant be set on cable conductor earlier, then cable conductor be positioned in the tank.2. after sealing finishes, in tank, inject deionized water and be immersed in deionized water fully until cable conductor.3. current potential anchor clamps and electric current anchor clamps are interposed on the cable conductor, two electric current anchor clamps are interposed in the current potential anchor clamps outsides respectively, and the distance between the two current potential anchor clamps is at least 1m, and the distance between the two electric current anchor clamps is at least 1.5 times of cable conductor girth.Last opening resistor tester begins to measure resistance.
Arbitrarily motion detection device is to the position that needs in the present invention, and convenient the use need not the intercepting cable conductor and carry out side-looking; Significantly reduced waste; Reduce production cost, do not received factor affecting such as air themperature, air humidity, specimen temperature during detection, improved the detection architecture accuracy.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as travelling car, tank, resistance meter, up-down back up pad, carriage morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.

Claims (1)

1. cable conductor DC resistance on-line detection device; Comprise resistance meter; It is characterized in that: include travelling car (1), resistance meter (2) is arranged on the travelling car, and the travelling car top is provided with the tank (4) that is used to hold cable conductor (7); Also comprise the current potential anchor clamps (5) and the electric current anchor clamps (6) that are used to be interposed on the cable; These current potential anchor clamps and electric current anchor clamps are connected on the resistance meter through electric wire, go up to erect at travelling car (1) to be provided with a pair of up-down back up pad (3), and this up-down back up pad upper end is above the travelling car top; On the up-down back up pad, being respectively arranged with can be along the go up and down carriage (9) of adjusting of up-down back up pad; Said tank (4) is arranged on the carriage, on tank (4) both ends of the surface, is respectively arranged with open slot (12), and open slot is provided with fluid sealant (11).
2. a kind of cable conductor DC resistance on-line detection device according to claim 1; It is characterized in that on up-down back up pad (3), being respectively arranged with regulating tank (31); Carriage (9) is provided with bolt; This bolt is used nut screwing clamping after passing regulating tank, and carriage is fixed on the up-down back up pad.
3. a kind of cable conductor DC resistance on-line detection device according to claim 1 and 2 is characterized in that being provided with several osculums (41) in the bottom of tank (4), is connected with drainpipe (8) on the osculum.
4. a kind of cable conductor DC resistance on-line detection device according to claim 1 and 2 is characterized in that travelling car (1) is provided with handle (10).
5. detection method that adopts each described cable conductor DC resistance on-line detection device among the claim 1-4, it is characterized in that: this method may further comprise the steps:
A. cable conductor DC resistance on-line detection device is shifted onto the position at cable conductor place; Regulate the height of tank; Make cable conductor be positioned at tank, the blind end of tank openings at two ends groove matches with cable conductor, then in open slot around on fluid sealant and by real;
B. in tank, inject water and be immersed in water fully until cable conductor;
C. current potential anchor clamps and electric current anchor clamps are interposed on the cable conductor, two electric current anchor clamps are interposed in the current potential anchor clamps outside respectively, and the opening resistor tester begins to measure resistance.
6. a kind of cable conductor DC resistance online test method according to claim 5 is characterized in that the distance between the two current potential anchor clamps is at least 1m, and the distance between the two electric current anchor clamps is at least 1.5 times of cable conductor girth.
7. a kind of cable conductor DC resistance online test method according to claim 5 is characterized in that the water that injects in the tank is deionized water.
CN2009103091622A 2009-10-30 2009-10-30 Cable conductor DC resistance on-line detection device and method thereof Expired - Fee Related CN101706530B (en)

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CN103309376B (en) * 2013-06-21 2016-05-18 河南开启电力实业有限公司 Finished cable electric resistance measuring apparatus and resistance measurement method thereof
CN103454503B (en) * 2013-08-30 2015-10-28 安徽省宁国天成电工有限公司 A kind of conductor resistance determinator
US9698609B2 (en) * 2015-01-13 2017-07-04 Fluke Corporation Testing device power induced by current transformer
CN105527494B (en) * 2016-01-14 2020-03-27 上海惠亚铝合金制品有限公司 Movable resistance value measuring trolley
CN107015059B (en) * 2017-04-01 2019-04-16 攀钢集团攀枝花钢铁研究院有限公司 Rail of subway insulation resistance on-line measurement device and measurement method
CN107192503B (en) * 2017-05-31 2023-09-08 国网浙江省电力公司电力科学研究院 High-voltage cable intermediate head environmental water level simulation test device
CN107765097B (en) * 2017-11-18 2020-04-07 国家电网公司 Special test clamp for main through-flow loop connector of converter valve
CN110018350A (en) * 2019-04-26 2019-07-16 中辰电缆股份有限公司 A kind of conductor DC resistance quick, intelligent measuring system online
CN113063986A (en) * 2021-02-03 2021-07-02 安徽新科电缆集团股份有限公司 Cable insulation resistance detection device
CN113406389B (en) * 2021-05-06 2022-07-26 江苏省电力试验研究院有限公司 Quality measuring device for coiled cable conductor
CN113156213A (en) * 2021-05-08 2021-07-23 无锡市计量测试院 Conductor direct current resistance on-line measuring device and method
CN114509606B (en) * 2022-02-15 2023-06-30 春光线缆有限公司 Portable resistance tester for cable

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Owner name: ZHEJIANG WANMA CO., LTD.

Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD.

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Address after: 311305, No. 88, South Ring Road, Ling'an Economic Development Zone, Zhejiang

Patentee after: ZHEJIANG WANMA CO., LTD.

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Patentee before: Zhejiang Wanma Cable Co., Ltd.

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Granted publication date: 20120627

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CF01 Termination of patent right due to non-payment of annual fee