CN202494728U - low-voltage nuclear phase device - Google Patents
low-voltage nuclear phase device Download PDFInfo
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- CN202494728U CN202494728U CN2012200823823U CN201220082382U CN202494728U CN 202494728 U CN202494728 U CN 202494728U CN 2012200823823 U CN2012200823823 U CN 2012200823823U CN 201220082382 U CN201220082382 U CN 201220082382U CN 202494728 U CN202494728 U CN 202494728U
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- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 12
- 238000000819 phase cycle Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Abstract
The utility model relates to a low pressure nuclear phase device. The structure includes: the phase A/D conversion unit for receiving an external three-phase power supply is connected with the first signal processing unit through the signal comparison unit, and the first processing unit is respectively connected with the indicating unit and the output unit. The utility model discloses a low pressure nuclear phase device can effectively improve the accuracy that nuclear phase detected, reduces the error, can also carry out clear and definite suggestion and demonstration function to need not be equipped with auxiliary assembly alone, reduced the cost of equipment and manpower. Because the nuclear phase device of the utility model is produced by conventional materials and processes, the production cost is low. The whole device is small in size, simple to operate and convenient to carry.
Description
Technical field
The utility model relates to phase checking device, is the low pressure phase checking device concretely.
Background technology
Nuclear phase operation refer in the electric operation of electric system with instrument or other means check two power supplys or loop phase, whether phase sequence identical.In electric high pressure power supply-distribution system; Electric substation after newly-built, renovating and enlarging and transmission line of electricity; And finish at line maintenance, before the user send electricity, all must carry out the three-phase circuit nuclear phase and detect, the phase sequence required with phase sequence and the user's threephase load of guaranteeing transmission line of electricity is consistent.Especially have the electric substation, the electricity generation grid-connecting pick-up unit same period of the above inlet wire of high-voltage double-loop etc., the nuclear phase of mains side voltage transformer (VT) first and second side is very important, is the detection means that guarantees the normal operation of electric substation.And for the low-voltage electric system of electrical installation project, in the power transformer debugging, receive/send often to run in the electricity operation of nuclear phase, the low-pressure system of especially dual power supply being switched, nuclear phase is the emphasis test item that must carry out.Traditional nuclear phase mode is the I/O mode that employing is simulated at present, and normal existence is used complicacy, checked many unfavorable factors such as inaccurate in practical application, and demonstration is not directly perceived yet, the accuracy of influence detection and the convenience of use.Simultaneously traditional nuclear phase functions of the equipments are single, before the nuclear phase operation, also need use utility appliance to carry out voltage measurement, influenced normal system debug work efficiency directly or indirectly.
The utility model content
The utility model provides a kind of low pressure phase checking device, in the time of convenient the use, effectively raises the accuracy that nuclear phase detects, and reduces error, can also carry out clear and definite prompting and Presentation Function, and not need to be equipped with separately utility appliance.
The low pressure phase checking device of the utility model; Receive extraneous three-phase supply through phase place A/D converting unit; Phase place A/D converting unit is connected with first signal processing unit through the signal comparing unit, and described first processing unit is connected with output unit with indicating member respectively.After three-phase collects signal through three special-purpose wire clamps; The standard phase sequence that in phase place A/D converting unit conversion back and signal comparing unit, is cured compares; And comparative result is flowed to first signal processing unit handle; If handle the back result correctly then export and carry out other detection,, then control indicating member and carry out corresponding prompt if find the phase sequence mistake.Because all judgements and processing all are to be directed against digital signal, therefore the conventional analogue signal can detect more accurately relatively, reduces the various negative consequences that factor causes according to error.
Further, described phase place A/D converting unit is connected with voltage A/D converting unit through switch, and described voltage A/D converting unit is connected with described indicating member through second processing unit.Nuclear phase is detected preceding voltage detecting utility appliance and phase checking device unite two into one, between two kinds of detections, change, help the complicacy of minimizing equipment and operation, can improve nuclear phase detection efficiency and human cost through switch.
Concrete, described indicating member comprises display device, is used for data and various information after detecting are shown, operating personnel can be made things convenient for, clear and definite know object information.
Concrete, indicating member also comprises sound/light generating apparatus.Sound/light generating apparatus is to carry out corresponding prompt or warning when unusual when phase sequence mistake or various detection occurring.Common sound/light generating apparatus is LED lamp, hummer etc.
In the phase checking device of the utility model, the structural device of each unit can use device and module at present commonly used, reducing production costs, and is easy to safeguard.
The low pressure phase checking device of the utility model can effectively improve the accuracy that nuclear phase detects, and reduces error, can also carry out clear and definite prompting and Presentation Function, and not need to be equipped with utility appliance separately, has reduced the cost of equipment and manpower.Because the phase checking device of the utility model is produced for conventional material and technology, so low production cost.Whole device volume is little, and is simple to operate, easy to carry.
Below in conjunction with embodiment, the foregoing of the utility model is remake further detailed description by the accompanying drawing illustrated embodiment.But should this be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following instance.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the utility model.
Description of drawings
Fig. 1 is the connection synoptic diagram of the utility model low pressure phase checking device.
Fig. 2 is the front schematic perspective view of the utility model low pressure phase checking device.
Fig. 3 is the back side schematic perspective view of the utility model low pressure phase checking device.
Embodiment
The low pressure phase checking device of the utility model as shown in Figure 1; Receive extraneous A, B, C three-phase supply through phase place A/D converting unit; Phase place A/D converting unit is connected with first signal processing unit through the signal comparing unit; Described first processing unit is connected with output unit with indicating member respectively, and indicating member comprises display device, LED lamp and hummer.Described phase place A/D converting unit is connected with voltage A/D converting unit through switch, can between nuclear phase detection and voltage detecting, change through switch.Described voltage A/D converting unit is connected with described indicating member through second processing unit, and the nickel-hydrogen chargeable cell group of 9V is that whole device is supplied power through converting unit.Phase place A/D converting unit, signal comparing unit and first signal processing unit carry out the configuration of corresponding model and type according to the outfit of particular hardware, and voltage A/D converting unit module can adopt the converter of ADC0808_0809 model.
During voltage detecting before carrying out nuclear phase; Switch is made as the voltage detecting gear; Circuit L1 and L2 input to voltage A/D converting unit and are converted into voltage digital signal; Again after second processing unit processes directly in the demonstration of the enterprising line data of display device, be convenient to observe, the data of analysis to measure.
When nuclear phase detects; After phase place A/D converting unit receives and changes A, B, three power supplys of C; Compare receiving the standard phase sequence that is cured in signal and the signal comparing unit, and comparative result is flowed to first signal processing unit handle, if handle afterwards the result correctly then export and carry out other detection; If find the phase sequence mistake, then control indicating member and carry out corresponding display reminding.
As shown in Figure 2; The front schematic perspective view of the utility model low pressure phase checking device; Plate is provided with the display screen 1 of display device in front; Below display screen 1, be respectively equipped with switch 2 and voltage table cushion hole 3, the voltage tester indicator is inserted the detection input that two-way voltage is carried out in voltage table cushion hole 3.The top of display screen 1 is provided with LED lamp 6, and when the detection appearance was unusual, LED lamp 6 carried out luminous prompting.Top at device is provided with phase-detection line jack 4, is used to insert the phase-detection wire clamp.On device, also be provided with drop handle 5, be convenient to guide and support this device, drop handle 5 also can be used for the support use when detecting.Because device main body size is 150mm * 75mm * 35mm, small volume and less weight, so very conveniently carry and use.
Fig. 3 shows the back side schematic perspective view of the utility model low pressure phase checking device, the device rear panel on be provided with hummer 7, hummer 7 can with LED lamp 6 cooperatings of front panel, carry out simultaneously sound, light prompting.
Claims (4)
1. low pressure phase checking device is characterized by: the phase place A/D converting unit that is used to receive extraneous three-phase supply is connected with first signal processing unit through the signal comparing unit, and said first processing unit is connected with output unit with indicating member respectively.
2. low pressure phase checking device as claimed in claim 1 is characterized by: described phase place A/D converting unit is connected with voltage A/D converting unit through switch, and described voltage A/D converting unit is connected with described indicating member through second processing unit.
3. according to claim 1 or claim 2 low pressure phase checking device, it is characterized by: described indicating member comprises display device.
4. low pressure phase checking device as claimed in claim 3 is characterized by: indicating member also comprises sound/light generating apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200823823U CN202494728U (en) | 2012-03-07 | 2012-03-07 | low-voltage nuclear phase device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200823823U CN202494728U (en) | 2012-03-07 | 2012-03-07 | low-voltage nuclear phase device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494728U true CN202494728U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200823823U Expired - Lifetime CN202494728U (en) | 2012-03-07 | 2012-03-07 | low-voltage nuclear phase device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494728U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884924A (en) * | 2014-04-15 | 2014-06-25 | 国网上海市电力公司 | Low-voltage cable nuclear phase device |
| CN104062513A (en) * | 2014-05-20 | 2014-09-24 | 东南大学 | Secondary phase detecting instrument and method |
| CN105334402A (en) * | 2015-11-20 | 2016-02-17 | 国网上海市电力公司 | Online low-voltage nuclear phase device and nuclear phase method thereof |
-
2012
- 2012-03-07 CN CN2012200823823U patent/CN202494728U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884924A (en) * | 2014-04-15 | 2014-06-25 | 国网上海市电力公司 | Low-voltage cable nuclear phase device |
| CN104062513A (en) * | 2014-05-20 | 2014-09-24 | 东南大学 | Secondary phase detecting instrument and method |
| CN105334402A (en) * | 2015-11-20 | 2016-02-17 | 国网上海市电力公司 | Online low-voltage nuclear phase device and nuclear phase method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
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| CX01 | Expiry of patent term |