CN2054538U - Fast-speed wire-checking unit - Google Patents
Fast-speed wire-checking unit Download PDFInfo
- Publication number
- CN2054538U CN2054538U CN 89208542 CN89208542U CN2054538U CN 2054538 U CN2054538 U CN 2054538U CN 89208542 CN89208542 CN 89208542 CN 89208542 U CN89208542 U CN 89208542U CN 2054538 U CN2054538 U CN 2054538U
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- resistance
- line
- gauge outfit
- power supply
- wire
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Abstract
The utility model discloses a fast wire checking unit. The fast wire checking unit adopts a technical proposal which changes an on/off display of wire checking into a number reading display. The utility model has the advantages of high work efficiency, simple structure and convenient operation. Therefore, a wire checking work of the quantity of core wires of a checking cable can be once accomplished in the determine range of the wire checking unit without experimental check in sequence. Because the wire checking unit a power supply self-checking circuit, the full self checking can be conveniently carried out for ensuring the accuracy and the reliability of the wire checking. In addition, the wire checking unit is also provided with an insulating test loop which can carry out qualitative and quantitative tests of wires in a low pressure electric loop, a wire and ground, open circuits and short circuits.
Description
The quick testing device that the utility model provides is the electrical equipment that is used for aspects such as electric wiring installation, maintenance.
Installing, when overhauling electrical equipment, usually needing the lead two ends of many stamens cable or one-tenth bundle are checked the work of wire size.To be double two at cable pursue root test break-make with the ohms range of multimeter to more original method comes wire size, and this method is time-consumingly easily to go on business again.Along with the development of technology has occurred the wire size isolated plant.Known this class isolated plant constitutes by terminal box with to line " break-make demonstration " part mostly, though this class device is more original collimation method is had than much progress, exists the inefficient shortcoming of line.Cause is " break-make demonstration " to line end, with it during to line must be according to tentative in order one by one the checking of wire size order of terminal box layout when connecting tested cable to line end, so it is work efficiency is lower, when checking the more cable wire size of stamen number, particularly outstanding to the line efficiency.
The purpose of the utility model is to provide a kind of quick testing device.Can reduce workload when making the operator check wire size, improve the work efficiency of checking wire size with this instrument.
The technical scheme that adopts for achieving the above object is this quick testing device.By passive resistance case part with active line demonstration electric box is partly constituted.It is characterized in that a: have resistance in the passive resistance case by R
n=(V)/(In) (the V-supply voltage is a constant in the formula, I
n=I
1+ (n+1) each loop current of d-.D-ordered series of numbers tolerance.N-1,2,3 ... the nature ordinal number) definite n resistance that is arranged in order.This row resistance one end Hu connects Wei the And connection.Each resistance other end is connected in the n that has a sequence number binding post (stake) that is provided with respectively successively on this resistance box surface; B, active line is shown that electric box is active the line reading to be shown electric box, be to have an electric current gauge outfit in this electric box, reach the power supply, the examination pen that are connected in series with this gauge outfit, the indication scale of this electric current gauge outfit is carved with binding post (stake) sequence number on n sequence number indicating value scale and each scale sequence number scale and the passive resistance case (and each resistance sequence number) and is one-to-one relationship.C. each lead termination of tested many stamens cable one end is inserted respectively on the binding post (stake) of passive resistance case during the line inspection, and with active line being shown on the electric current gauge outfit in the electric box that selected tested cable concentric line is connected tested many stamens cable other end, and constitute a tested cable that is contacted by tested cable concentric line, electric current gauge outfit, power supply and examination pen, the active line inspection loop that the resistance in the resistance box is connected in series successively.
Active the line reading is shown in the electric box also have the power supply energy self-checking circuit in addition.And also have by current-limiting resistance, power supply, electric current gauge outfit and tested cable and be connected in series successively and the Insulation test loop that constitutes, also be carved with the resistance mark on the electric current gauge outfit scale.The technical spirit of this programme is to become prior art line " break-make " is shown as line " reading " is shown.
This fast the advantage of the more known alignment device of testing device be that uses is quick to line, accurately and reliably and have a multifunctionality.Line " break-make " is shown as because of having adopted to become " " reading " technique for displaying scheme has improved greatly to line efficient to line.So that tested cable stamen line number in the determined scope of this testing device, need not tentative check successively once to finish the lineman is done.Even tested cable stamen line number surpasses this testing device scope, also can significantly improve line efficient.Thereby, this testing device guaranteed accurately and reliably line because of having the power supply energy self-checking circuit and can carry out the gamut self check easily.Its multifunctionality is that its Insulation test loop can carry out between lead in the low-voltage electrical loop.Between line ground, and the qualitative, quantitative test job of open circuit, short circuit.
Accompanying drawing has provided embodiment of the present utility model.Fig. 1 is this quick testing device circuit structure and principle of work synoptic diagram.Fig. 2 is this quick testing device outside drawing.Fig. 3 is the resistance table of present embodiment resistance box.I passive resistance case part among the figure.II is active to show electric box part (abbreviation electric box) to line.The tested cable of III.Base integrated package when 1 binding post (stake), 2 examination pens, 3 electric current gauge outfits, 45G1555.
As seen from the figure.This quick testing device is with active line to be shown that electric box (II) two parts constitute by passive resistance case (I).Its principle of work is that each lead termination of tested many stamens cable (III) end is inserted passive resistance case (I) respectively.Be formed with resource loop with active power supply (Ec) and electric current gauge outfit (3) series connection that is located at many stamens cable (III) other end to line demonstration electric box (II).By electric current gauge outfit (3) end of the same name that size of current in each loop of being connected is judged every lead is shown.But electric current gauge outfit (3) circular graduation indicating value is not the magnitude of current value of reading.Marked be with the passive resistance case on binding post (stake) (1) the corresponding one by one sequence number that is arranged in order by magnitude of current size of the sequence number of marking.In present embodiment passive resistance case (I), be provided with 20 resistance.One end of these 20 resistance is connected in parallel each other.Each resistance (R
1～R
20) other end is connected in respectively on 20 binding posts (stake) (1) that indicate 1～20 sequence number respectively that are provided with on this resistance box surface successively.These 20 resistance (R
1～R
20) resistance be according to formula R
n=(V)/(In=I
1+ (n-1) d) determines.Electric current gauge outfit (3) is elected μ A level gauge outfit as in the present embodiment, power supply (Ec) is the 15V(constant) I
1Get 0.5 A, d for the ordered series of numbers tolerance elects 0.5 as, n is 1,2,3 ... 20 natural ordinal numbers.Calculate the resistance of these 20 resistance and see accompanying drawing 3.
It is as follows that the lineman is made process: see Fig. 1.Arbitrarily connect and many stamens cable terminal by fish mouth folder at an end of tested cable (III) the binding post that indicates 1～20 sequence number (stake) (1) passive resistance case (I).Attention keeps away layer or ground wire etc. with the screen of the special colour code line of cable or cable and receives on the ground binding post of passive resistance case (I).To the other end of tested cable (III) ground wire of active electric box (II) is kept away layer or ground wire etc. by special colour code line or cable screens that fish mouth folder is connected to tested cable then.Active, passive two parts that promptly guarantee tested cable two ends need have one to measure concentric line.Connect electric box (II) and go up switch (ZK) (DK), touch tested cable stamen line arbitrarily with examination (2), just have a concrete numerical value as long as survey general rule on electric current gauge outfit (3) scale, the binding post that on resistance box mark (stake) (1) the stamen line that sequence number connected identical with this indicating value is line of the same name.As long as being no more than 20, tested cable stamen line number then can once need not the experimental test process like this to the line success.Even stamen line number also can significantly improve when surpassing 20 the lineman is made efficient.
The formation and the principle of work of power supply energy self-checking circuit are as described below.Referring to Fig. 1.This circuit is by the 5G1555(4 of computing circuit as a comparison) time basis set circuit block, its input end be connected to be parallel to power supply (Ec) by resistance R
21, R
22, R
23The pressure sampling circuit of forming, be connected to load-relay (J) and by light emitting diode (LED), the current-limiting resistance R of this relay (J) Control work at its output terminal
24, R
25Constitute.5G1555(4 wherein) pin 8 connects power supply (Ec), pin 1 ground connection, pin 2 sampled signal trigger ends, pin 6 threshold value ends, pin 3 and is signal output part.Switch during work (DK) is (AK) all closed.Pin 3 output " 0 " state contacts (J) are off state during as pin 6 input current potentials 〉=2/3 Ec.During as pin 2 current potentials≤1/3 Ec.Pin 3 output one states.Make circuit breaker (J) adhesive.(LED) is bright for light emitting diode.Be supply voltage when being lower than 15V, the bright warning of light emitting diode (LEO).Should change battery.Otherwise pin 3 defeated " 0 " states that show.Light emitting diode (LED) does not work.
The formation and the course of work in Insulation test loop are as described below.For making this quick testing device multifunction and a tractor serves several purposes, in electric box (II), also be provided with current-limiting resistance R
26Be connected in series formation Insulation test loop successively with power supply (Ec), electric current gauge outfit (3) and tested cable.Referring to Fig. 1.During work, switch (ZK) (AK) is opened, switch (DK) closure.Electric current enters electric current gauge outfit (3) from power supply (Ec) anode through switch (DK) and flows to cable iron sheet or screen and keep away layer etc., touches the resistance that the line stamen is seen the gauge outfit indication then arbitrarily.Present embodiment current-limiting resistance R
26Elect as 1.5M Ω then electric current gauge outfit (3) scale can to survey the insulation resistance value scope be 0～50M Ω.By this loop can carry out between line, insulation resistance and circuit is opened, short circuit etc. between line ground.
In addition this fast a testing device can carry out the gamut self check, its course of work with the lineman is made process roughly the same.
Claims (3)
1, a kind of quick testing device.By passive resistance case part with active line demonstration electric box is partly constituted.It is characterized in that:
Has resistance in a, the passive resistance case (I) by Rn=(V)/(In) (in the formula: V-supply voltage, constant.The In-loop current, In=I
1+ (n-1) d, d-ordered series of numbers tolerance.N-nature ordinal number) definite n resistance that is arranged in order.This row resistance one end is connected in parallel (being concentric line) each other, and each resistance other end is connected in the n that has a sequence number binding post (stake) (1) that is provided with respectively successively on this resistance box surface;
B. active promptly originally active to having an electric current gauge outfit (3) in the line reading demonstration electric box (II) to line demonstration electric box, reach the power supply (Ec), the examination pen (2) that are connected in series with this gauge outfit (3), the indication scale of this electric current gauge outfit (3) is carved with last binding post (stake) (1) sequence number (being each resistance sequence number) of n sequence number indicating value scale and each scale sequence number scale and passive resistance case (I) and is one-to-one relationship.
C. each lead termination of tested many stamens cable (III) end is inserted respectively on the binding post (stake) (1) of passive resistance case (I) during the line inspection, and with active line being shown on the electric current gauge outfit (3) in the electric box (II) that selected tested cable concentric line is connected tested many stamens cable (III) other end, and constitute the tested cable that is contacted by tested cable concentric line, electric current gauge outfit (3), power supply (Ec) and examination pen (z), the active line inspection loop that the resistance in the resistance box (I) is connected in series successively.
2, quick testing device according to claim 1 is characterized in that said active to also having the power supply energy self-checking circuit in the line reading demonstration electric box (II).This self-checking circuit is by comparison operation circuit (4), is connected to the pressure sampling circuit that is parallel to power supply, is connected to load-relay (J) at its output terminal at its input end.And by the power supply energy state of this relay (J) Control work indication luminotron (LED) and constitute.
3, quick testing device according to claim 1 is characterized in that said to also having one by current-limiting resistance (R in the line reading demonstration electric box (II)
26).Power supply (Ec) electric current gauge outfit (3) and tested cable are connected and the Insulation test loop that constitutes successively.And also has the resistance value mark on electric current gauge outfit (3) scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89208542 CN2054538U (en) | 1989-06-10 | 1989-06-10 | Fast-speed wire-checking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89208542 CN2054538U (en) | 1989-06-10 | 1989-06-10 | Fast-speed wire-checking unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2054538U true CN2054538U (en) | 1990-03-14 |
Family
ID=4865212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89208542 Withdrawn CN2054538U (en) | 1989-06-10 | 1989-06-10 | Fast-speed wire-checking unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2054538U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012465A (en) * | 2010-01-21 | 2011-04-13 | 柳州市达迪通信设备有限公司 | Wire order test method |
| CN102096000A (en) * | 2010-12-17 | 2011-06-15 | 河南省电力公司商丘供电公司 | Approval method for secondary cable cores |
| CN102496889A (en) * | 2011-11-24 | 2012-06-13 | 山东电力集团公司济南供电公司 | Core aligning device for cables |
| CN102520284A (en) * | 2011-12-11 | 2012-06-27 | 河南省电力公司平顶山供电公司 | Method for rapidly searching secondary loop wire |
| CN106291254A (en) * | 2016-09-23 | 2017-01-04 | 上海送变电工程公司 | A kind of automated intelligent line inspection device for intelligent substation |
| CN110687373A (en) * | 2019-09-30 | 2020-01-14 | 上海御渡半导体科技有限公司 | Detection structure and method of ATE system |
| CN112526402A (en) * | 2020-11-03 | 2021-03-19 | 大唐陈村水力发电厂 | Wire alignment device and working method thereof |
-
1989
- 1989-06-10 CN CN 89208542 patent/CN2054538U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012465A (en) * | 2010-01-21 | 2011-04-13 | 柳州市达迪通信设备有限公司 | Wire order test method |
| CN102096000A (en) * | 2010-12-17 | 2011-06-15 | 河南省电力公司商丘供电公司 | Approval method for secondary cable cores |
| CN102496889A (en) * | 2011-11-24 | 2012-06-13 | 山东电力集团公司济南供电公司 | Core aligning device for cables |
| CN102520284A (en) * | 2011-12-11 | 2012-06-27 | 河南省电力公司平顶山供电公司 | Method for rapidly searching secondary loop wire |
| CN106291254A (en) * | 2016-09-23 | 2017-01-04 | 上海送变电工程公司 | A kind of automated intelligent line inspection device for intelligent substation |
| CN106291254B (en) * | 2016-09-23 | 2019-12-20 | 上海送变电工程有限公司 | Automatic intelligent line inspection device for intelligent substation |
| CN110687373A (en) * | 2019-09-30 | 2020-01-14 | 上海御渡半导体科技有限公司 | Detection structure and method of ATE system |
| CN112526402A (en) * | 2020-11-03 | 2021-03-19 | 大唐陈村水力发电厂 | Wire alignment device and working method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |