CN2859551Y - Intellectual power cable phase detecting instrument - Google Patents
Intellectual power cable phase detecting instrument Download PDFInfo
- Publication number
- CN2859551Y CN2859551Y CN 200520105973 CN200520105973U CN2859551Y CN 2859551 Y CN2859551 Y CN 2859551Y CN 200520105973 CN200520105973 CN 200520105973 CN 200520105973 U CN200520105973 U CN 200520105973U CN 2859551 Y CN2859551 Y CN 2859551Y
- Authority
- CN
- China
- Prior art keywords
- sampler
- phase
- central controller
- combined switch
- power cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an intellectual power cable phase detecting instrument belonging to the instruction devices for judging the two ends phase of an electric cable to be consistentment or not. The instrument comprises a sampler and a phase detector connecting with the sampler through the measured cable. Wherein the sampler comprises a sampling element fixed in the shell of the sampler and a socket connecting with the sampling element. The phase detector comprises a main control board, a three-phase input plug connecting with the main control board, a display panel, a power switch, a measure button and a battery case. A numeral tube is mounted on the display panel. The instrument has simple structure and small size. Besides, it can determine the phase of each cable rapidly, accurately, conveniently and visually. Accordingly, it is a strong assistant of workers when installing, erectting and maintaining the outside cables.
Description
Technical field
Whether consistent the utility model relates to a kind of intelligent power cable phase detecting instrument that is applicable to that external cable is installed, set up or overhaul, belong to phase place the indicating device of differentiating power cable two ends at the whole story.
Background technology
At present, three-phase electrical cable is installed in long distance, sets up, when overhauling, is often needed to understand the phase place of every cable at the top defined in good time.Because the working site is very far away far from top, differentiates its phase place with artificial way from three cables, not only bothers very much, and waste time and energy.
The utility model content
The purpose of this utility model is the shortcoming at prior art, provide a kind of simple in structure, volume is little and can be fast, determine the intelligent power cable phase detecting instrument of every phase of cable accurately, easily and intuitively.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of intelligent power cable phase detecting instrument, form with the phase detectors 3 that are connected with sampler 1 by tested cable 2 by sampler 1, it is characterized in that: described sampler 1 comprises the sampling element and the socket that is connected with sampling element that is fixed in the sampler housing, and phase detectors 3 comprise master control borad and the three-phase input plug that is connected with master control borad, display board, power switch, measurement button and battery case; Display board is provided with charactron.
The utility model compared with prior art has the following advantages: the utility model is simple in structure, and volume is little, can be fast, determine the phase place of every cable accurately, easily and intuitively, become that external cable is installed, set up, check man author's strong assistant.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is the structural representation of the utility model sampler 1.
Fig. 3 is the circuit block diagram of the utility model phase detectors 3.
Fig. 4 is the electrical schematic diagram of the utility model sampling element.
Fig. 5 is a circuit block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structure of the present utility model and principle of work are described further.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is made up of with phase detectors 3 that are connected with sampler 1 by tested cable 2 sampler 1, described sampler 1 comprises the sampling element and socket A, the B, the C that are connected with sampling element that is fixed in the sampler housing, phase detectors 3 comprise master control borad CPU and the three-phase input plug X1, X2, the X3 that are connected with master control borad CPU, display board, power switch is measured button and battery case; Display board is provided with three charactrons.
As shown in Figure 1, a phase of cable A is placed at top at tested cable 2, B, C three-phase sampler 1, the tested cable 2 that this sampler 1 is corresponding with its phase place connects, the phase place of tested cable 2 is by operator's defined, end at tested cable 2 is the test side, place phase detectors 3, three velamens are surveyed the random input end X1 that is connected these phase detectors 3 of cable 2, X2, X3, turn on the power switch and press the measurement button simultaneously, after starting is measured, detect the A-B that sampler 1 sends by phase detectors 3, A-C, B-C, B-A, C-A, six kinds of status signals of C-B, get its three correct status signal, and then judge that three velamens survey cable 2 pairing A, B, the C phase place, and be presented at and X1, X2, on the corresponding charactron of X3.
As Fig. 2 and shown in Figure 4, the utility model sampler 1 comprises the sampling element and socket A, the B, the C that are connected with sampling element that is fixed in the sampler housing, the probe signal of sending by master control borad CPU, be applied to one of socket A, B, C three ends arbitrarily as input end, again by the conduct output of one of residue two ends.Six kinds of composite signals that this input, output are complementary are transferred to phase detectors 3, for its detection, choice and demonstration.
As shown in Figure 3, phase detectors 3 comprise master control borad CPU and the three-phase input plug X1, X2, X3, display board, power switch, measurement button and the battery case that are connected with master control borad CPU.
As shown in Figure 5, described master control borad CPU comprises central controller CPU and the decoder driver circuit that is connected with central controller CPU, the input measurement combined switch, combined switch is measured in output, incoming signal level shaping circuit and output signal level shaping circuit, the duty of combined switch is measured in central controller CPU control input measurement combined switch and output, the signal of central controller CPU is delivered to output and is measured combined switch after the shaping of output signal level shaping circuit, be sent to sampler 1 through selected line again, the signal of sampler 1 is sent to central controller CPU after input measurement combined switch and the shaping of incoming signal level shaping circuit differentiates, and central controller CPU differentiates the phase information of finishing is sent to indication power cable phase place through decoder driver circuit charactron I, charactron II and charactron III.
Combined switch is measured in input, output: be to survey the cable 2 from three velamens to take out two at every turn, be divided into the different signal level shaping circuits that is connected.Be divided into six kinds of different signal level shaping circuits that are connected, the method for its six kinds of combinations is: X1X2, X1X3, X2X1, X2X3, X3X1, X3X2, input, output combined switch are made up of six relays, divide two groups up and down, three every group.Output is measured three relays of combined switch and is responsible for the signal from the output signal level shaping circuit is sent to sampler 1 by selected line.The signal that three relays of input measurement combined switch are responsible for sampler 1 is sent is sent to the incoming signal level shaping circuit through selected line.The duty of input, output combined switch is controlled by central controller CPU.Each combination all is connected respectively to the input port of incoming signal level shaping circuit and the output port of output signal level shaping circuit with two of tested cable 2.
Input, output signal level shaping circuit: the output signal level shaping circuit will be delivered to output measurement combined switch after the signal shaping from central controller CPU; The incoming signal level shaping circuit will send central controller CPU to differentiate from sampler 1 after the signal shaping of input measurement combined switch.Input, output signal level shaping circuit are made up of four 4049 anti-phase buffered gate element circuits, and two as exporting two conduct inputs.
Decoder driver circuit: be responsible for central controller CPU is differentiated phase place A, B, the C information of finishing, drive corresponding seven segment digital tubes I, II, III through decoder driver circuit, the phase place of the tested cable 2 that connected of indication, decoder driver circuit by 4511, the MC1413 chip forms.
Central controller CPU: be made up of AT89C2051 chip or AT89C8051 chip, be responsible for sending probe signal to sampler 1, receive from the feedback signal of receiving sampler 1, the measurement combination that combined switch carries out defined is measured in the defeated output of control.
This device also can be measured the phase place of two cables, just A, the B end of tested cable 2 with sampler 2 joined at cable top, tested 2 terminal arbitrarily connections with phase detectors 3 input ends of cable get final product, and it is the same to start the measurement back course of work, and instrument will determine A, B phase cable rapidly.
Claims (4)
1, a kind of intelligent power cable phase detecting instrument, form with the phase detectors (3) that are connected with sampler (1) by tested cable (2) by sampler (1), it is characterized in that: described sampler (1) comprises the sampling element and the socket that is connected with sampling element that is fixed in the sampler housing, and phase detectors (3) comprise master control borad and the three-phase input plug that is connected with master control borad, display board, power switch, measurement button and battery case; Display board is provided with charactron.
2, intelligent power cable phase detecting instrument according to claim 1 is characterized in that: described sampling element is by resistance R
0With diode D
1The sample circuit that is in series.
3, intelligent power cable phase detecting instrument according to claim 1, it is characterized in that: described master control borad comprises central controller and the decoder driver circuit that is connected with central controller, the input measurement combined switch, combined switch is measured in output, incoming signal level shaping circuit and output signal level shaping circuit, the duty of combined switch is measured in central controller controls input measurement combined switch and output, the signal of central controller is delivered to output and is measured combined switch after the shaping of output signal level shaping circuit, be sent to sampler (1) through selected line again, the signal of sampler (1) is sent to central controller after input measurement combined switch and the shaping of incoming signal level shaping circuit differentiates, and central controller is differentiated the phase information of finishing is sent to indication power cable phase place through decoder driver circuit charactron.
4, intelligent power cable phase detecting instrument according to claim 3, it is characterized in that: described input measurement combined switch and output are measured combined switch and are made up of three relays respectively, input, output signal level shaping circuit are made up of four 4049 anti-phase buffered gate element circuits, two as exporting two conduct inputs; Decoder driver circuit by 4511, the MC1413 chip forms, central controller is AT89C2051 chip or AT89C8051 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105973 CN2859551Y (en) | 2005-12-26 | 2005-12-26 | Intellectual power cable phase detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105973 CN2859551Y (en) | 2005-12-26 | 2005-12-26 | Intellectual power cable phase detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859551Y true CN2859551Y (en) | 2007-01-17 |
Family
ID=37612410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520105973 Expired - Fee Related CN2859551Y (en) | 2005-12-26 | 2005-12-26 | Intellectual power cable phase detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859551Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792428A (en) * | 2013-12-10 | 2014-05-14 | 国家电网公司 | Three-phase cable phase measurement apparatus and use method thereof |
| CN104237658A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Efficient phase indicator |
| CN110672921A (en) * | 2019-10-31 | 2020-01-10 | 国网山西省电力公司长治供电公司 | Three-core power cable phase detection device in off-line state |
-
2005
- 2005-12-26 CN CN 200520105973 patent/CN2859551Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237658A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Efficient phase indicator |
| CN103792428A (en) * | 2013-12-10 | 2014-05-14 | 国家电网公司 | Three-phase cable phase measurement apparatus and use method thereof |
| CN103792428B (en) * | 2013-12-10 | 2015-03-25 | 国家电网公司 | Three-phase cable phase measurement apparatus and use method thereof |
| CN110672921A (en) * | 2019-10-31 | 2020-01-10 | 国网山西省电力公司长治供电公司 | Three-core power cable phase detection device in off-line state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |