CN205940645U - Bus duct check out test set - Google Patents
Bus duct check out test set Download PDFInfo
- Publication number
- CN205940645U CN205940645U CN201620955266.6U CN201620955266U CN205940645U CN 205940645 U CN205940645 U CN 205940645U CN 201620955266 U CN201620955266 U CN 201620955266U CN 205940645 U CN205940645 U CN 205940645U
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- CN
- China
- Prior art keywords
- box body
- bus duct
- signal receiver
- voltage
- testing equipment
- 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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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a bus duct check out test set, including box body, handle and the central processing unit of setting in the box body, be equipped with control operation screen, control button, a plurality of liquid crystal display, detected signal lamp, shift knob and signal receiver on the box body, signal receiver's input links to each other with voltage acquisition module and temperature sensor respectively, has connected gradually step -down amplitude limiting module, difference amplifier, filtering amplitude limiting module and adc between voltage acquisition module and the signal receiver, and temperature sensor passes through signal processor and links to each other with signal receiver, and voltage acquisition 0's output and alarm are connected, and the alarm is including vibration alarm unit and temperature warning light, voltage warning light and vocal ware. The dual amplitude limiting module of utilizing step -down amplitude limiting module and filtering amplitude limiting module to constitute makes the sudden change electric current can not exert an influence to voltage signal, has improved bus duct check out test set's interference immunity greatly, and then has improved bus duct check out test set's the degree of accuracy and reliability.
Description
Technical field
The utility model is related to electric detection means field and in particular to arriving a kind of bus duct testing equipment.
Background technology
Power plant, the high-tension switch cabinet at alternating current station are important electric equipments.In equipment During Process of Long-term Operation, switch cubicle
In bus contact joint, the position such as high-voltage cable joint lead to resistance excessive and generate heat because of aging or contact, make adjacent insulation division
Part performance degradation, or even puncture and cause the accident, and due to long-time protection threshold voltage too low or too high all can be to change
Frequency device produces and damages, and the busbar voltage detection of therefore frequency converter is a link of non-the normally off key, and the overvoltage of frequency converter detects, owes
The defencive functions such as pressure detection, braking protection are all based on the busbar voltage show value of detection, therefore, it is necessary to take effectively arrange
Apply monitoring bus duct temperature and voltage.
Because the bus in switch cubicle is in high-voltage, often relatively and not all not there is very high voltage between homophase,
And structure narrow and small it is impossible to thermometric of manually being patrolled, so direct detection high voltage bus temperature is always in power system detection
A difficult problem.Busbar voltage detection method of the prior art is all the shutoff by a side bus voltage, in secondary side
Loop produce a discernible pulse signal, and the relation of the amplitude according to this pulse signal and busbar voltage, draw
Whole bus voltage value.Thus just produce many technical problems：The pulse signal of secondary survey can really react real-time
The value of busbar voltage；Under the interference of the extraneous factors such as the performance indications of many such as transformers, secondary side power supply, how so that
Pulse signal can keep stable.
Utility model content
The purpose of this utility model is to provide a kind of bus duct testing equipment, to solve existing bus duct testing equipment detection
Data is inaccurate and the unstable problem of detection signal.
For reaching above-mentioned purpose, the utility model be employed technical scheme comprise that：A kind of bus duct testing equipment is provided, including
Box body, handle and be arranged on the central processing unit in box body；Box body is provided with control operation screen, control button and multiple liquid crystal
Display screen, is provided with detection signal lamp and shift knob above control operation screen, be provided with and process with central authorities below LCDs
The signal receiver that device input connects；The input of signal receiver respectively with voltage acquisition module and temperature sensor phase
Even, it is connected with step-down clipping module, difference amplifier, filtering clipping module between voltage acquisition module and signal receiver in turn
And analog-digital converter, temperature sensor is connected with signal receiver by signal processor, the output end of central processing unit and report
Alert device connects, and alarm includes the temperature warning vibrating alarm unit and being arranged on box body and be connected with vibration alarm unit
Lamp, voltage warning lamp and acoustical generator.
Preferably, tray interior is additionally provided with battery, and box body side is provided with charging inlet.
Preferably, box body one side is provided with the communication terminal being connected with host computer.
Preferably, it is provided with protective cover above box body.
Preferably, LCDs is provided with four, and longitudinal arrangement.
Preferably, handle is arranged with one layer of Anti-slip cover.
In sum, the utility model has advantages below：
1st, the utility model makes circuit using the dual clipping module of step-down clipping module and filtering clipping module composition
In mutation current will not on voltage signal produce impact, substantially increase the anti-interference of bus duct testing equipment so that
Obtain central processing unit and can receive stable analog signal, further increase the degree of accuracy and the reliability of bus duct testing equipment
Property.
2nd, the utility model adopts differential signal as the basis signal calculating bus voltage value, that is, eliminate transformer
Conversion, thus avoid the impact of the mutation pulse signals generation in secondary test coil so that the bus duct calculating is electric
Pressure value is more accurate, and can truly react the real-time voltage situation of bus duct, thus improve whole bus duct detection setting
Standby using effect.
Brief description
Fig. 1 is the schematic diagram of the utility model bus duct testing equipment；
Fig. 2 is the module map of the utility model bus duct testing equipment；
Wherein, 1, box body；2nd, control button；3rd, LCDs；4th, control operation screen；5th, communication terminal；6th, detection letter
Signal lamp；7th, temperature warning lamp；8th, voltage warning lamp；9th, acoustical generator；10th, shift knob；11st, protective cover；12nd, handle；13rd, anti-skidding
Set；14th, charging inlet；15th, signal receiver.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described in detail.
In an embodiment of the present utility model, as shown in Figure 1, 2, there is provided a kind of bus duct testing equipment, including box
Body 1, handle 12 and be arranged on the central processing unit in box body 1；Box body 1 is provided with control operation screen 4, control button 2 and many
Individual LCDs 3, is provided with detection signal lamp 6 and shift knob 10, sets below LCDs 3 above control operation screen 4
There is the signal receiver 15 being connected with central processing unit input；The input of signal receiver 15 respectively with voltage acquisition module
It is connected with temperature sensor, between voltage acquisition module and signal receiver, be connected with step-down clipping module, differential amplification in turn
Device, filtering clipping module and analog-digital converter, temperature sensor is connected with signal receiver by signal processor, and central authorities are processed
The output end of device is connected with alarm, and alarm includes vibrating alarm unit and is arranged on box body 1 and single with vibration warning
Temperature warning lamp 7, voltage warning lamp 8 and acoustical generator 9 that unit connects.
Optimal enforcement example of the present utility model, is additionally provided with battery inside box body 1, and box body 1 side is provided with charging
Mouth 14；Box body 1 one side is provided with the communication terminal 5 being connected with host computer；It is provided with protective cover 11 above box body 1.Liquid crystal display
Screen 3 is provided with four, and longitudinal arrangement；One layer of Anti-slip cover 13 is arranged with handle 12.
The step-down clipping module of the voltage signal amplitude limit in order to export bus, in order to be converted to simulation letter by voltage signal
Number difference amplifier, the filtering clipping module in order to stable simulation signal and analog signal is calculated as in bus voltage value
Central processor, the PI end that step-down clipping module passes through to receive one group of differential signal is connected with bus with EN end, differential amplification
Device is connected with step-down clipping module, and the output end of difference amplifier is connected with filtering clipping module, and filtering clipping module passes through mould
Number converter is connected with central processing unit.
Temperature sensor is directly connected with bus duct, and the temperature of temperature sensor collection is transferred to box body 1 by holding wire,
And shown by LCDs 3；And adopt differential signal as the basis signal calculating bus voltage value, that is, eliminate transformation
The conversion of device, thus avoid the impact that mutation pulse signals in secondary test coil produce so that the bus that calculates
Tank voltage value is more accurate, and can truly react the real-time voltage situation of bus duct, thus improving whole bus duct inspection
The using effect of measurement equipment.Meanwhile, circuit is made by the dual clipping module that step-down clipping module and filtering clipping module form
In mutation current will not on voltage signal produce impact, substantially increase the anti-interference of bus duct testing equipment so that
Central processing unit can receive stable analog signal, and then improve further bus duct testing equipment the degree of accuracy and can
By property.When the temperature of bus duct or voltage are higher than default temperature value or magnitude of voltage, voltage warning lamp or temperature warning lamp are sent out
Light, starts acoustical generator simultaneously, has effectively played warning function.
The utility model structure is simple, easy to operate, and detection is accurate, convenient later maintenance, and detection time is short, by set
Protective cover, power storage can be converted solar energy in battery, for electricity consumption needed for testing equipment.And its structure letter
Single, using, easy for installation, simple to operate, energy-conserving and environment-protective, test accurately, efficiency high, applied widely, long service life, have
Safe and reliable effect.
Although being described in detail to specific embodiment of the present utility model in conjunction with accompanying drawing, it is right to should not be construed as
The restriction of the protection domain of this patent.In scope described by claims, those skilled in the art are without creative labor
Move the various modifications that can make and deformation still belongs to the protection domain of this patent.
Claims (6)
1. a kind of bus duct testing equipment it is characterised in that：Including box body（1）, handle（12）And in being arranged in box body
Central processor；Described box body（1）It is provided with control operation screen（4）, control button（2）With multiple LCDs（3）, described control
Operator control panel processed（4）Top is provided with detection signal lamp（6）And shift knob（10）, described LCDs（3）Lower section be provided with
The signal receiver that central processing unit input connects（15）；Described signal receiver（15）Input respectively with voltage acquisition
Module is connected with temperature sensor, be connected with turn between described voltage acquisition module and signal receiver step-down clipping module,
Difference amplifier, filtering clipping module and analog-digital converter, described temperature sensor passes through signal processor and signal receiver
It is connected, the output end of described central processing unit is connected with alarm, described alarm includes vibrating alarm unit and is arranged on
The temperature warning lamp being connected on box body and with vibration alarm unit（7）, voltage warning lamp（8）And acoustical generator（9）.
2. bus duct testing equipment as claimed in claim 1 it is characterised in that：Described box body（1）Inside is additionally provided with battery,
And box body side is provided with charging inlet（14）.
3. bus duct testing equipment as claimed in claim 1 it is characterised in that：Described box body（1）One side be provided with upper
The communication terminal that position machine connects（5）.
4. bus duct testing equipment as claimed in claim 1 it is characterised in that：Described box body（1）Top is provided with protective cover
（11）.
5. bus duct testing equipment as claimed in claim 1 it is characterised in that：Described LCDs（3）It is provided with four,
And longitudinal arrangement.
6. bus duct testing equipment as claimed in claim 1 it is characterised in that：Described handle（12）On be arranged with one layer anti-skidding
Set（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955266.6U CN205940645U (en) | 2016-08-29 | 2016-08-29 | Bus duct check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955266.6U CN205940645U (en) | 2016-08-29 | 2016-08-29 | Bus duct check out test set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205940645U true CN205940645U (en) | 2017-02-08 |
Family
ID=57953929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620955266.6U Expired - Fee Related CN205940645U (en) | 2016-08-29 | 2016-08-29 | Bus duct check out test set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205940645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457611A (en) * | 2017-06-23 | 2017-12-12 | 成都飞机工业（集团）有限责任公司 | One kind prevents part burn supervising device and its monitoring method |
-
2016
- 2016-08-29 CN CN201620955266.6U patent/CN205940645U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457611A (en) * | 2017-06-23 | 2017-12-12 | 成都飞机工业（集团）有限责任公司 | One kind prevents part burn supervising device and its monitoring method |
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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: 20170208 Termination date: 20210829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |