CN206657055U - A kind of switch cubicle phase checking device - Google Patents
A kind of switch cubicle phase checking device Download PDFInfo
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- CN206657055U CN206657055U CN201720409068.4U CN201720409068U CN206657055U CN 206657055 U CN206657055 U CN 206657055U CN 201720409068 U CN201720409068 U CN 201720409068U CN 206657055 U CN206657055 U CN 206657055U
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- 238000009530 blood pressure measurement Methods 0.000 claims description 24
- 238000012795 verification Methods 0.000 claims description 21
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 36
- 238000002474 experimental method Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 10
- 238000009413 insulation Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 206010014357 Electric shock Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a kind of switch cubicle phase checking device, including crust of the device, the collating circuit being arranged in crust of the device, warning circuit, display circuit and two groups of three-phase conductive interfaces being arranged on crust of the device；Two groups of three-phase conductive interfaces include using A interfaces, B interface, C interface as one group conductive interface and using X interfaces, Y interfaces, Z interfaces as one group of conductive interface, the A interfaces, B interface, C interface connection it is main enter switch switch cubicle be connected the suitable for reading of row's connection with bus, the X interfaces, Y interfaces, the connection of Z interfaces need the tested switch cubicle for checking phase be connected with bus arrange connect it is suitable for reading.The utility model has the advantages that changed without wiring, be fast and reliable and safe and efficient.
Description
Technical field
A kind of switch cubicle phase checking device is the utility model is related to, belongs to test apparatus field, and in particular to capital construction is tested
Test apparatus during receipts.
Background technology
Original phase core means for closing is to use 2500V insulation resistance meters during capital construction is checked and accepted, complete by reverse graft line 3 times
Into 9 verifications, conclusion (of pressure testing) can be just drawn, the major defect of this method is that wiring change is cumbersome, labor intensity is high, operating efficiency
It is low.
Switch cubicle power supply is that breaker is linked together by bus connection row with bus, and normal connected mode is breaker
A, B, C connect 10kV, 35kV bus bar A, B, C respectively, but easily that A, B, C three-phase phase is even wrong during capital construction, cause out
Close and phase anomaly alarm occurs in cabinet transmission process, it is necessary to carry out defect processing in time, it is therefore desirable to carry out switch cubicle phase core
It is right.
Original universal meter method of testing is, it is necessary to two people are operated, but during changing, extending, easily by adjacent
Every faradic influence, indicator is caused to swing back and forth, impression test accuracy.
Original insulation resistance meter method of testing need to frequently change test connection, core needed for change, it is necessary to four people are operated
To switch cubicle, test connection change is cumbersome, workload is big, labor intensity is high, operating efficiency is low, test operation is dangerous big.
Utility model content
Technical problem to be solved in the utility model there is provided it is a kind of without wiring change, labor intensity is low, work
Efficiency high and safe, intensive, efficient, reliable switch cubicle phase checking device.
The utility model employs following technical scheme：
A kind of switch cubicle phase checking device, it includes crust of the device, the collating circuit being arranged in crust of the device, alarm
Circuit, display circuit and two groups of three-phase conductive interfaces being arranged on crust of the device；Two groups of three-phase conductive interfaces are included with A
Conductive interface that interface, B interface, C interface are one group and using X interfaces, Y interfaces, Z interfaces as one group of conductive interface, the A connects
Mouth, B interface, C interface connection it is main enter switch switch cubicle be connected to arrange with bus and connects suitable for reading, the X interfaces, Y interfaces, Z connect
Mouth connection needs the tested switch cubicle for checking phase to be connected the suitable for reading of row's connection with bus；The collating circuit includes pressure measurement resistance
R1- pressure measurement resistance R3, switch K1- switches K3, comparator U1- comparators U3 and single-chip microcomputer U4, it forms three groups of verification branch roads, often
The output end of group verification identical and every group of verification branch road of branch structure accesses single-chip microcomputer U4 corresponding A/D ends, one of which core
Include switch K1, pressure measurement resistance R1 and comparator U1 to branch road, both ends connect respectively after switch K1 and pressure measurement resistance the R1 series connection
A interfaces and X interfaces are connect, the input and earth terminal of the comparator U1 are connected in parallel on pressure measurement resistance R1 both ends, the ratio respectively
The corresponding A/D ends of output end access single-chip microcomputer U4 compared with device U1；The corresponding I/O ends of the single-chip microcomputer U4 distinguish circuit taking alarm and
The respective input of display circuit；Both ends connect B interface and Y interfaces, institute respectively after switch K2 and pressure measurement resistance the R2 series connection
Both ends connect C interface and Z interfaces respectively after stating switch K3 and pressure measurement resistance R3 series connection.
Further, institute's warning circuit includes resistance R4- resistance R9, PNP type triode T1-PNP type triode T3 and 3
Acoustic-optic alarm, it forms three group alarm branch roads, identical per group alarm branch structure, and one of which alarm branch road includes resistance
R4- resistance R5, PNP type triode T1 and 1 acoustic-optic alarm, the corresponding I/O ends of the single-chip microcomputer U4 are accessed through resistance R4
PNP type triode T1 base stage, it is grounded after colelctor electrode and the acoustic-optic alarm series connection of the PNP type triode T1, the PNP
Type triode T1 emitter stage connects power Vcc, the resistance R5 be connected in parallel on PNP type triode T1 colelctor electrode and power Vcc it
Between.
Further, the acoustic-optic alarm is buzzer and/or warning lamp.
Further, the display circuit includes liquid crystal display U5 and its peripheral component, the I/O of the single-chip microcomputer U4
End electrical connection corresponding with liquid crystal display U5 I/O ends.
The beneficial effects of the utility model are as follows：
The utility model, which realizes once-through operation, can draw the whether correct conclusion of phase, be a kind of integrated experiment
Device, it uses built-in lithium battery, and output voltage is no more than 36V, safety；All wiring are concentrated in tester, it is intensive.
The utility model, which is once tested, can complete to test, and judge whether phase is correct, efficiently.The utility model uses good insulation
And Anti-Jamming Technique, not by electromagnetic interference around, reliably.
The accuracy, security, reliability of experiment, experiment work efficiency and emergency reaction speed is substantially improved in the utility model
Degree is significantly increased.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Wherein, 1 collating circuit, 2 warning circuits, 3 display circuits, A, B, C represent A interfaces, B interface, C interface respectively, X,
Y, Z represents X interfaces, Y interfaces, Z interfaces respectively.
Embodiment
The utility model is described further with reference to Fig. 1 and specific embodiment.
As shown in figure 1, the present embodiment is related to a kind of switch cubicle phase checking device, it includes crust of the device, is arranged on dress
Put the collating circuit 1 in shell, warning circuit 2, display circuit 3 and two groups of three-phase conductive interfaces being arranged on crust of the device；
Two groups of three-phase conductive interfaces include using A interfaces, B interface, C interface as one group conductive interface and with X interfaces, Y interfaces, Z
Interface is one group of conductive interface, the A interfaces, B interface, C interface connection it is main enter switch switch cubicle be connected the company of row with bus
What is connect is suitable for reading, and the X interfaces, Y interfaces, the connection of Z interfaces need the tested switch cubicle for checking phase to be connected row's connection with bus
It is suitable for reading；The collating circuit 1 include pressure measurement resistance R1- pressure measurement resistance R3, switch K1- switch K3, comparator U1- comparators U3 and
Single-chip microcomputer U4, it forms three groups of verification branch roads, and the output end of identical and every group of verification branch road of every group of verification branch structure accesses
Single-chip microcomputer U4 corresponding A/D ends, one of which verification branch road include switch K1, pressure measurement resistance R1 and comparator U1, the switch
Both ends connect A interfaces and X interfaces, input and the earth terminal difference of the comparator U1 respectively after K1 and pressure measurement resistance R1 series connection
It is connected in parallel on pressure measurement resistance R1 both ends, the output end access single-chip microcomputer U4 of the comparator U1 corresponding A/D ends；One of which core
Include switch K2, pressure measurement resistance R2 and comparator U2 to branch road, both ends connect respectively after switch K2 and pressure measurement resistance the R2 series connection
B interface and Y interfaces are connect, the input and earth terminal of the comparator U2 are connected in parallel on pressure measurement resistance R2 both ends, the ratio respectively
The corresponding A/D ends of output end access single-chip microcomputer U4 compared with device U2；One of which verification branch road include switch K3, pressure measurement resistance R3 and
Comparator U3, both ends connect C interface and Z interfaces respectively after switch K3 and pressure measurement resistance the R3 series connection, the comparator U3's
Input and earth terminal are connected in parallel on pressure measurement resistance R3 both ends, the output end access single-chip microcomputer U4 of comparator U3 phase respectively
Answer A/D ends；Distinguish the respective input of circuit 2 and display circuit 3 taking alarm in the corresponding I/O ends of the single-chip microcomputer U4.
Further, institute's warning circuit 2 includes resistance R4- resistance R9, PNP type triode T1-PNP type triode T3 and 3
Individual acoustic-optic alarm, it forms three group alarm branch roads, identical per group alarm branch structure, and one of which alarm branch road includes electricity
Resistance R4- resistance R5, PNP type triode T1 and 1 acoustic-optic alarm, the corresponding I/O ends of the single-chip microcomputer U4 connect through resistance R4
Enter PNP type triode T1 base stage, be grounded after colelctor electrode and the acoustic-optic alarm series connection of the PNP type triode T1, it is described
PNP type triode T1 emitter stage connects power Vcc, and the resistance R5 is connected in parallel on PNP type triode T1 colelctor electrode and power Vcc
Between；
One of which alarm branch road includes resistance R6- resistance R7, PNP type triode T2 and 1 acoustic-optic alarm, described
Single-chip microcomputer U4 corresponding I/O ends access PNP type triode T2 base stage, the colelctor electrode of the PNP type triode T2 through resistance R6
It is grounded after being connected with acoustic-optic alarm, the emitter stage of the PNP type triode T2 connects power Vcc, and the resistance R7 is connected in parallel on
Between PNP type triode T2 colelctor electrode and power Vcc.One of which alarm branch road includes resistance R8- resistance R9, positive-negative-positive three
PNP type triode T3 base is accessed at pole pipe T3 and 1 acoustic-optic alarm, the corresponding I/O ends of the single-chip microcomputer U4 through resistance R8
Pole, it is grounded after colelctor electrode and the acoustic-optic alarm series connection of the PNP type triode T3, the transmitting of the PNP type triode T3
Pole connects power Vcc, and the resistance R8 is connected in parallel between PNP type triode T3 colelctor electrode and power Vcc.Further, it is described
Acoustic-optic alarm is buzzer and/or warning lamp, as shown in figure 1, representing buzzer in embodiment with SP1-SP3.
Further, the display circuit 3 includes liquid crystal display U5 and its peripheral component, the I/ of the single-chip microcomputer U4
The corresponding electrical connection in O ends and liquid crystal display U5 I/O ends.
The model LM339, the single-chip microcomputer U4 of the comparator U1- comparators U3 model PIC 18F4420, institute
State liquid crystal display U5 model LM32019P or NA19019-C001.
The technology and technological level that the utility model is related to are as follows：
1. the utility model using electrical test, automatically control, the ripe skill in the field such as power electronics, insulating structure design
Art, traditional experiment instrument, test connection are integrated, improve the automatization level of field test operation, simplify experiment
Flow.
2. crust of the device of the present utility model is provided with control panel, liquid crystal display, each switch cubicle design interface, ground connection dress
A series of auxiliary facilities such as put, without carrying out test connection change, switching, the triviality that lowering apparatus uses.
3. the utility model uses the internal battery of low voltage, output voltage is not higher than 36V, i.e. human body bears highest electricity
Pressure, even if someone's false touch device during work, will not also cause Danger Electric shock risk, it is dangerous to reduce experiment.
4. guidance panel of the present utility model and sheathing material use the insulating materials of high withstand voltage grade, and pass through 30kV
Pressure test and anti-interference test it is qualified after, can select, can effectively improve test verification accuracy.
Application effect of the present utility model is as follows：
1. during capital construction, with regard to the working time can be saved 0.3 hour during single switch cubicle test phase, about 20 minutes, one
As transformer station change, extend 10kV and go out line number and be at least 6, newly-built transformer station 10 kV outgoing line is 10.Therefore, a phase verification
Test, the utility model can at least save hour time 2-3,
2. the utility model realizes Highgrade integration, will test wiring and test protection device is all intensive arrives the present apparatus
In, without carrying out two verification again, save the people of experiment number two.
3. the utility model in electric company's popularization and application, is widely used in the capital construction course of receiving, work is improved
Efficiency, at present associate organization there is no same category of device also, outstanding top standard is belonged in provincial company system.It is of the present utility model to push away
Wide prospect is as follows：
The utility model is applied to newly-built, reorganization and expansion 10kV, 35kV switch cubicle phase checking work, the utility model tool
The advantages that functional advanced, system compatibility is strong, improvement cost is low, high safety, have a extensive future, promotional value is good.
In the past, when carrying out check to switch cubicle, it is necessary to using 2500V insulation resistance meters, in main transformer low-pressure side plus
Pressure, in each outgoing line side ground connection or hanging of switch cubicle, reverse graft line 3 times, 9 verifications are completed, reach and complete the verification of switch cubicle phase
Purpose.But subject matter existing for this method of testing is due to that voltage class is higher using 2500V insulation resistance meters, hold
Easily hurt sb.'s feelings, security is not high；Line falling often, extremely influences operating efficiency, uses very inconvenient.
Innovative technology of the present utility model only needs primary connection, and all wiring are all summed up in the point that in checking device, it is only necessary to
Once to test can and show whether three-phase test phase is all correct, and internal electric source directly uses the in-built electrical of low voltage
Pond, during the long, experiment that successfully solved experiment time former wiring become frequent, experiment work is easily caused person electric shock
Problem, is substantially improved the accuracy, security, reliability of experiment, and experiment work efficiency and emergency reaction speed are significantly increased.
The safety control measures that the utility model is taken in the application are as follows：
1. subject matter existing for original method of testing is due to using 2500V insulation resistance meters, voltage class is higher, holds
Easily hurt sb.'s feelings, security is not high；Existing switch cubicle phase checking device internal electric source directly uses the internal battery of low voltage, output
Voltage is not higher than 36V, i.e. human body bears ceiling voltage, even if someone's false touch device during work, will not also cause to get an electric shock
It is dangerous.
2. guidance panel of the present utility model and sheathing material use the insulating materials of high withstand voltage grade, and pass through 30kV
Pressure test it is qualified after, can select.
3. tester uses special earth point, and selects special earthing or grounding means, ensure that instrument connection is reliable；Simultaneously
Regulation, before start-up operation, it is necessary to be first grounded, after end-of-job, ground wire can be removed.
4. using effective isolating and protecting measure, the faradic interference of adjacent spaces is effectively eliminated.
The technology controlling and process specifications such as the material selection of the present embodiment, physical dimension are as follows：
1. the guidance panel and crust of the device material of a switch cubicle phase checking device use the insulation of high withstand voltage grade
Material, and by 30kV pressure test it is qualified after, can select.
2. the length, width and height of a switch cubicle phase checking device are respectively 400*200*200mm specifications, it is easy to carry and tests,
It is that 2 Huangs are 2 green 2 red, a ground wire i.e. 1 is black to be equipped with 6 phase wiring simultaneously, and test clip.In addition, it should also be equipped with standby connect
Line bag, including standby test clip, wiring etc..
This switch cubicle phase checking device be applied to each grade it is newly-built, change, extend transformer station's 10kV, 35kV switch cubicle
Phase verification checking and accepting.
Table 1：It is as follows using effect comparison table before and after the utility model：
By taking the single 10kV switch cubicles phase verification of certain transformer station as an example
| Classification | It is conventional | The utility model |
| Experiment number | 4 people | 2 people |
| Test period | 0.5 hour | 0.2 hour |
| Prepare the used time before examination | 0.5 hour | 0.5 hour |
| Change test connection number | 9 times | 0 time |
| Voltage magnitude during test | 2500V | 36V |
| Test whether there is Danger Electric shock risk | Have | Nothing |
As shown in table 1, with regard to test period can be saved 0.3 hour during only one switch cubicle test phase, about 20 minutes, section
About test two person-times of number.General transformer station, which changes, extend 10kV goes out line number and is at least 6, and newly-built transformer station 10 kV outgoing line is 10
Bar.Therefore, when phase is checked, test device can at least save hour time 2-3, and saving can be reached by testing economic benefit every time
30,000 yuan of test fund, the accuracy, security and operating efficiency of experiment is substantially improved.
Embodiment described above is only preferred embodiment of the present utility model, and the not feasible implementation of the utility model
It is exhaustive.For persons skilled in the art, it is made on the premise of without departing substantially from the utility model principle and spirit
Any obvious change gone out, should all be contemplated as falling with claims of the present utility model.
Claims (4)
- A kind of 1. switch cubicle phase checking device, it is characterised in that：It includes crust of the device, the verification being arranged in crust of the device Circuit（1）, warning circuit（2）, display circuit（3）With two groups of three-phase conductive interfaces being arranged on crust of the device；Described two groups Three-phase conductive interface include using A interfaces, B interface, C interface as one group conductive interface and using X interfaces, Y interfaces, Z interfaces as one The conductive interface of group, the A interfaces, B interface, C interface connection it is main enter switch switch cubicle be connected with bus arrange connect it is suitable for reading, The X interfaces, Y interfaces, the connection of Z interfaces need the tested switch cubicle for checking phase to be connected the suitable for reading of row's connection with bus；It is described Collating circuit（1）Including pressure measurement resistance R1- pressure measurement resistance R3, switch K1- switches K3, comparator U1- comparators U3 and single-chip microcomputer U4, it forms three groups of verification branch roads, and the output end of identical and every group of verification branch road of every group of verification branch structure accesses single-chip microcomputer U4 corresponding A/D ends, one of which verification branch road include switch K1, pressure measurement resistance R1 and comparator U1, the switch K1 and survey Both ends connect A interfaces and X interfaces respectively after piezoresistance R1 series connection, and the input and earth terminal of the comparator U1 are connected in parallel on respectively Pressure measurement resistance R1 both ends, the output end access single-chip microcomputer U4 of the comparator U1 corresponding A/D ends；Pair of the single-chip microcomputer U4 I/O ends are answered to distinguish circuit taking alarm（2）And display circuit（3）Respective input；Switch K2 and pressure measurement resistance the R2 series connection Both ends connect B interface and Y interfaces respectively afterwards, and both ends connect C interface respectively after switch K3 and pressure measurement resistance the R3 series connection and Z connects Mouthful.
- A kind of 2. switch cubicle phase checking device according to claim 1, it is characterised in that：The warning circuit（2）Bag Resistance R4- resistance R9, PNP type triode T1- PNP type triodes T3 and 3 acoustic-optic alarms are included, it forms three group alarms Branch road, identical per group alarm branch structure, one of which alarm branch road includes resistance R4- resistance R5, PNP type triode T1 and 1 Individual acoustic-optic alarm, the corresponding I/O ends of the single-chip microcomputer U4 access PNP type triode T1 base stage, the PNP through resistance R4 It is grounded after type triode T1 colelctor electrode and acoustic-optic alarm series connection, the emitter stage of the PNP type triode T1 connects power supply Vcc, the resistance R5 are connected in parallel between PNP type triode T1 colelctor electrode and power Vcc.
- A kind of 3. switch cubicle phase checking device according to claim 2, it is characterised in that：The acoustic-optic alarm is Buzzer and/or warning lamp.
- A kind of 4. switch cubicle phase checking device according to claim 1 or 2, it is characterised in that：The display circuit（3） Including liquid crystal display U5 and its peripheral component, the corresponding electricity in the I/O ends of the single-chip microcomputer U4 and liquid crystal display U5 I/O ends Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720409068.4U CN206657055U (en) | 2017-04-19 | 2017-04-19 | A kind of switch cubicle phase checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720409068.4U CN206657055U (en) | 2017-04-19 | 2017-04-19 | A kind of switch cubicle phase checking device |
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| Publication Number | Publication Date |
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| CN206657055U true CN206657055U (en) | 2017-11-21 |
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ID=60318689
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| CN201720409068.4U Active CN206657055U (en) | 2017-04-19 | 2017-04-19 | A kind of switch cubicle phase checking device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024619A (en) * | 2017-04-19 | 2017-08-08 | 国家电网公司 | A kind of switch cubicle phase checking device |
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
-
2017
- 2017-04-19 CN CN201720409068.4U patent/CN206657055U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024619A (en) * | 2017-04-19 | 2017-08-08 | 国家电网公司 | A kind of switch cubicle phase checking device |
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
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