CN205691732U - A kind of auxiliary detection instrument of transformer station disconnecting link or air switch - Google Patents
A kind of auxiliary detection instrument of transformer station disconnecting link or air switch Download PDFInfo
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- CN205691732U CN205691732U CN201620473793.3U CN201620473793U CN205691732U CN 205691732 U CN205691732 U CN 205691732U CN 201620473793 U CN201620473793 U CN 201620473793U CN 205691732 U CN205691732 U CN 205691732U
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Abstract
This utility model relates to transformer station's disconnecting link or air switch detection technique field, particularly relate to the auxiliary detection instrument of a kind of transformer station disconnecting link or air switch, this utility model have employed mcu programming and calculates the voltage signal of input, and realize the comparison techniques method of voltage, solve trouble that Traditional Man measures and high voltage brings the technical problem of high-risk coefficient of people, reach staff and not be used in scene, it is possible to known that disconnecting link and air switch close the most intact technique effect；Using the technical method that the automatic intelligent systems technology based on single-chip microcomputer designs, the technical problem detected with solving staff's right place, reached simple efficient, automatization level is higher, the efficient technique effect of system stability.
Description
Technical field
This utility model relates to transformer station's disconnecting link or air switch detection technique field, particularly relates to a kind of transformer station disconnecting link
Or the auxiliary detection instrument of air switch.
Background technology
Along with China's economy constantly advances and the continuous acceleration of globalization process, the industrial sector of China, electronics produce
Industry and smelting industry constantly advance, and the thing followed is the development of China's power industry.In China, power industry just rises
During step, the electric power of all trades and professions is all in short supply, but the electric reliability of this Ji Nianli China constantly strengthens, and electric power is the most gradually
Meet the demand of every profession and trade.But the thing followed is the integrity problem of our power supply, electric substation's disconnecting link and air switch are
No Guan Bi is well wherein one of problem of our current power supply reliability.Due to the inlet wire side of disconnecting link of electric substation and outgoing line side all
Being the highest electric pressure, we also cannot directly measure the voltage of the highest electric pressure, so how check disconnecting link or
Whether air switch closes the new important topic having become as power supply reliability.
Utility model content
Technical problem to be solved in the utility model, is the technical deficiency for above-mentioned existence, it is provided that a kind of power transformation
Stand the auxiliary detection instrument of disconnecting link or air switch, have employed mcu programming and calculate the voltage signal of input, and realize voltage
Comparison techniques method, the technology solving trouble that Traditional Man measures and the high voltage high-risk coefficient that brings people is asked
Topic, has reached staff and has not be used in scene, it is possible to know that disconnecting link and air switch close the most intact technique effect；Adopt
Gather forceful electric power signal with voltage transformer and to become voltage ratio by a series of rectification relatively low, can be directly by monolithic
The technical method of the small-signal that machine accepts, also needs to after solving traditional measurement just to show that computing is tied indirectly by the calculating of people
The technical problem of fruit, has reached to be calculated by people and unification allows single-chip microcomputer realize calculating, and has efficiently, skill accurately
Art effect, the technical method using the automatic intelligent systems technology based on single-chip microcomputer to design, solve staff's timing
The technical problem of fixed point ground detection, has reached simple efficient, and automatization level is higher, the efficient technique effect of system stability.
For solving above-mentioned technical problem, this utility model be the technical scheme is that to include single machine unit, incoming line
Voltage detecting circuit, line outlet voltage detecting circuit and display unit, incoming line voltage detecting circuit delivery outlet and single-chip microcomputer list
The I/O mouth of unit connects, and occurs that the delivery outlet of mouth voltage detecting circuit is connected with the I/O mouth of single machine unit, display unit and list
The I/O mouth of sheet machine unit connects, and power module is connected with the power port of single machine unit；
Optimizing the technical program further, described single machine unit is STC12C5204AD single-chip microcomputer, and power module is
The Switching Power Supply of 5V-2A；
Optimizing the technical program further, described incoming line voltage detecting circuit is by incoming line voltage transformer, whole
Stream bridge A and operational amplifier U1 composition, the low-pressure side interface of incoming line voltage transformer is connected with the high-pressure side of transformator T1, T1
The negative electrode of low-pressure side and diode D1, D6 of rectifier bridge A and the junction of anode of diode D8, D7 be connected, rectifier bridge A's
The negative electrode junction of D8, D7 is connected with the negative electrode of diode D2, and the anode junction of D1, D6 of rectifier bridge A is with diode D2's
Anode connects, and the negative electrode of D2 is connected with the electric capacity C4 that capacitance is 470uF, and the other end of C4 is connected with the anode of D2, C4 and D2
Negative electrode connects side and is connected with the positive input of operational amplifier U1, and the negative input of U1 is connected with the delivery outlet of U1, U1's
Delivery outlet is connected with the P10 mouth of single machine unit, and incoming line voltage transformer uses the mutual induction of voltage of JSZK2-10KV type
Device, the model of diode D1, D6, D7, D8 used by rectifier bridge A is 1N4007, and operational amplifier U1 uses the model to be
LM2904, transformator T1 be no-load voltage ratio be the EE type transformator of 10: 1；
Optimizing the technical program further, described line outlet voltage detecting circuit is by line outlet voltage transformer, whole
Stream bridge B and operational amplifier U3 composition, the low-pressure side interface of line outlet voltage transformer is connected with the high-pressure side of transformator T2, T2
The negative electrode of low-pressure side and diode D3, D10 of rectifier bridge B and the junction of anode of diode D9, D11 be connected, rectifier bridge B
The negative electrode junction of D9, D11 be connected with the negative electrode of diode D4, the anode junction of D3, D10 of rectifier bridge B and diode
The anode of D4 connects, and the negative electrode of D4 is connected with the electric capacity C6 that capacitance is 470uF, and the other end of C6 is connected with the anode of D4, C6
Being connected side to be connected with the positive input of operational amplifier U3 with D4 negative electrode, the negative input of U3 is connected with the delivery outlet of U3,
The delivery outlet of U3 is connected with the P11 mouth of single machine unit, occurs that mouth voltage transformer uses the voltage of JSZK2-10KV type
Transformer, the model of diode D3, D9, D10, D11 used by rectifier bridge A is 1N4007, and operational amplifier U3 uses type
Number be LM2904, transformator T2 be no-load voltage ratio be the EE type transformator of 10: 1；
Optimizing the technical program further, described display unit is mainly by the resistance R8 that resistance is 1K and light-emitting diodes
Pipe D5 composition, the positive pole of power module is connected with R8, and the R8 other end is connected with the anode of light emitting diode, light emitting diode
Negative electrode is connected with the P21 interface of single machine unit, and light emitting diode uses red light emitting diodes.
Compared with prior art, this utility model has the advantage that 1, uses STC12C5204AD single-chip microcomputer as master
Control unit, is integrated with the memorizer of larger capacity and abundant powerful hardware interface circuit, and carries A/D conversion mouth, it is not necessary to
The most additionally use A/D conversion chip, there is very high performance price ratio；2, voltage transformer JSZK2-10KV type, has high
Stability and resistance to pressure, become low pressure for high pressure and provide and well stablize path, and insulating properties are stronger.
Accompanying drawing explanation
Fig. 1 is this equipment inner structure figure；
Fig. 2 is single machine unit circuit diagram；
Fig. 3 is incoming line and line outlet voltage detecting circuit figure；
Fig. 4 is display unit circuit figure.
In figure, 1, single machine unit；2, power module；3, incoming line voltage detecting circuit；4, line outlet voltage detecting electricity
Road；5, display unit；6, incoming line voltage transformer；7, rectifier bridge A；8, line outlet voltage transformer；9, rectifier bridge B.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage of greater clarity, below in conjunction with detailed description of the invention
And referring to the drawings, this utility model is further described.It should be understood that these describe the most exemplary, and do not really want
Limit scope of the present utility model.Additionally, in the following description, the description to known features and technology is eliminated, to avoid not
Obscure concept of the present utility model necessarily.
Detailed description of the invention: as Figure 1-4, including single machine unit 1, incoming line voltage detecting circuit 3, line outlet electricity
Pressure testing circuit 4 and display unit 5, incoming line voltage detecting circuit 3 delivery outlet is connected with the I/O mouth of single machine unit 1, outlet
The mouth delivery outlet of voltage detecting circuit 4 is connected with the I/O mouth of single machine unit 1, display unit 5 and the I/O mouth of single machine unit 1
Connecting, power module 2 is connected with the power port of single machine unit 1；
Described single machine unit 1 is STC12C5204AD single-chip microcomputer, and power module 5 is the Switching Power Supply of 5V-2A；Described
Incoming line voltage detecting circuit 3 be made up of incoming line voltage transformer 6, rectifier bridge A7 and operational amplifier U1, incoming line
The low-pressure side interface of voltage transformer 6 is connected with the high-pressure side of transformator T1, the diode D1 of the low-pressure side of T1 and rectifier bridge A7,
The junction of the negative electrode of D6 and the anode of diode D8, D7 connects, the negative electrode junction of D8, D7 of rectifier bridge A7 and diode D2
Negative electrode connect, the anode junction of D1, D6 of rectifier bridge A7 is connected with the anode of diode D2, and the negative electrode of D2 with capacitance is
The electric capacity C4 of 470uF connects, and the other end of C4 is connected with the anode of D2, C4 with D2 negative electrode with operational amplifier U1 is just being connected side
Connecting to input, the negative input of U1 is connected with the delivery outlet of U1, and the delivery outlet of U1 connects with the P10 mouth of single machine unit 1
Connecing, incoming line voltage transformer 6 uses the voltage transformer of JSZK2-10KV type, diode D1 used by rectifier bridge A7,
The model of D6, D7, D8 is 1N4007, and operational amplifier U1 uses model to be LM2904, and transformator T1's is that no-load voltage ratio is
The EE type transformator of 10: 1.；Described line outlet voltage detecting circuit 4 is by line outlet voltage transformer 8, rectifier bridge B9 and fortune
Calculating amplifier U3 composition, the low-pressure side interface of line outlet voltage transformer 8 is connected with the high-pressure side of transformator T2, the low-pressure side of T2
It is connected with the junction of the negative electrode of diode D3, D10 of rectifier bridge B9 and the anode of diode D9, D11, the D9 of rectifier bridge B9,
The negative electrode junction of D11 is connected with the negative electrode of diode D4, and the anode junction of D3, D10 of rectifier bridge B9 is with diode D4's
Anode connects, and the negative electrode of D4 is connected with the electric capacity C6 that capacitance is 470uF, and the other end of C6 is connected with the anode of D4, C6 and D4
Negative electrode connects side and is connected with the positive input of operational amplifier U3, and the negative input of U3 is connected with the delivery outlet of U3, U3's
Delivery outlet is connected with the P11 mouth of single machine unit 1, occurs that mouth voltage transformer 8 uses the voltage of JSZK2-10KV type mutual
Sensor, the model of diode D3, D9, D10, D11 used by rectifier bridge A9 is 1N4007, and operational amplifier U3 uses model
For LM2904, transformator T2 be no-load voltage ratio be the EE type transformator of 10: 1；It is 1K that described display unit 5 is mainly by resistance
Resistance R8 and light emitting diode D5 composition, the positive pole of power module 2 is connected with R8, the sun of the R8 other end and light emitting diode
Pole connects, and the negative electrode of light emitting diode is connected with the P21 interface of single machine unit 1, and light emitting diode uses emitting red light two pole
Pipe.
Gather disconnecting link respectively such as Fig. 1, incoming line voltage detecting circuit 3 and line outlet voltage detecting circuit 4 or air is opened
The inlet wire side closed and the voltage of outgoing line side, and by high-voltage signal through incoming line voltage detecting circuit 3 and line outlet voltage detecting
Circuit 4 carries out process and delivers to single machine unit 1, then single-chip microcomputer to the inlet wire side of input and the voltage of outgoing line side is analyzed and
Relatively, seeing whether both end voltage difference differs relatively big, if differing by more than preset value, then single machine unit 1 can be to display unit 5
One low level signal, now light emitting diode can be bright, tells that staff's disconnecting link or air switch Guan Bi are problematic, and work people
Disconnecting link or air switch are overhauled and change by member in time, if the voltage phase difference of inlet wire side and outgoing line side is little, then luminous
Diode will not be bright, normal operation；
Fig. 2 is the circuit diagram of single machine unit, and using STC12C5204AD single-chip microcomputer is main control unit, is integrated with relatively great Rong
The memorizer of amount and abundant hardware interface circuit, operating rate is fast, and carries A/D conversion mouth, it is not necessary to the extra A/D that adds turns
Changing chip, stability is strong, has high cost performance；
Fig. 3 is incoming line voltage detecting circuit 3 of the present utility model and line outlet voltage detecting circuit 4 circuit diagram, two
Circuit diagram is substantially similar, and high-voltage signal is transferred to low-voltage signal by voltage transformer, and low-voltage signal changes into monolithic through transformator again
The voltage signal that machine unit 1 can bear, the A/D being entered into single-chip microcomputer by voltage follower changes mouth, now single-chip microcomputer list
Unit 1 collects voltage signal and then carries out a series of comparison making corresponding measure.
It should be appreciated that above-mentioned detailed description of the invention of the present utility model is used only for exemplary illustration or explains this reality
By novel principle, and do not constitute restriction of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.Additionally,
This utility model claims are intended to fall into scope and border or this scope and border
Whole in equivalents change and modifications example.
Claims (5)
1. the auxiliary detection instrument of transformer station's disconnecting link or air switch, it is characterised in that: include single machine unit (1), enter
Line mouth voltage detecting circuit (3), line outlet voltage detecting circuit (4) and display unit (5), incoming line voltage detecting circuit (3)
Delivery outlet is connected with the I/O mouth of single machine unit (1), the delivery outlet of line outlet voltage detecting circuit (4) and single machine unit (1)
I/O mouth connect, display unit (5) is connected with the I/O mouth of single machine unit (1), power module (2) and single machine unit (1)
Power port connect.
The auxiliary detection instrument of a kind of transformer station disconnecting link the most according to claim 1 or air switch, it is characterised in that: single
Sheet machine unit (1) is STC12C5204AD single-chip microcomputer, and power module (5) is the Switching Power Supply of 5V-2A.
The auxiliary detection instrument of a kind of transformer station disconnecting link the most according to claim 1 or air switch, it is characterised in that: enter
Line mouth voltage detecting circuit (3) is made up of incoming line voltage transformer (6), rectifier bridge A (7) and operational amplifier U1, inlet wire
The low-pressure side interface of mouth voltage transformer (6) is connected with the high-pressure side of transformator T1, the low-pressure side of T1 and the two of rectifier bridge A (7)
The junction of the negative electrode of pole pipe D1, D6 and the anode of diode D8, D7 connects, the negative electrode junction of D8, D7 of rectifier bridge A (7)
Being connected with the negative electrode of diode D2, the anode junction of D1, D6 of rectifier bridge A (7) is connected with the anode of diode D2, the moon of D2
Pole is connected with the electric capacity C4 that capacitance is 470uF, and the other end of C4 is connected with the anode of D2, C4 with D2 negative electrode is connected side and computing
The positive input of amplifier U1 connects, and the negative input of U1 is connected with the delivery outlet of U1, the delivery outlet of U1 and single-chip microcomputer list
The P10 mouth of unit (1) connects, and incoming line voltage transformer (6) uses the voltage transformer of JSZK2-10KV type, rectifier bridge A
(7) model of diode D1, D6, D7, D8 used by is 1N4007, and operational amplifier U1 uses model to be LM2904, becomes
Depressor T1 be no-load voltage ratio be the EE type transformator of 10: 1.
The auxiliary detection instrument of a kind of transformer station disconnecting link the most according to claim 1 or air switch, it is characterised in that: go out
Line mouth voltage detecting circuit (4) is made up of line outlet voltage transformer (8), rectifier bridge B (9) and operational amplifier U3, outlet
The low-pressure side interface of mouth voltage transformer (8) is connected with the high-pressure side of transformator T2, the low-pressure side of T2 and the two of rectifier bridge B (9)
The junction of the negative electrode of pole pipe D3, D10 and the anode of diode D9, D11 connects, and the negative electrode of D9, D11 of rectifier bridge B (9) connects
Place is connected with the negative electrode of diode D4, and the anode junction of D3, D10 of rectifier bridge B (9) is connected with the anode of diode D4, D4
Negative electrode be connected with the electric capacity C6 that capacitance is 470uF, the other end of C6 is connected with the anode of D4, C6 with D4 negative electrode be connected side with
The positive input of operational amplifier U3 connects, and the negative input of U3 is connected with the delivery outlet of U3, the delivery outlet of U3 and monolithic
The P11 mouth of machine unit (1) connects, and occurs that mouth voltage transformer (8) uses the voltage transformer of JSZK2-10KV type, rectification
The model of diode D3, D9, D10, D11 used by bridge A (9) is 1N4007, and operational amplifier U3 uses the model to be
LM2904, transformator T2 be no-load voltage ratio be the EE type transformator of 10: 1.
The auxiliary detection instrument of a kind of transformer station disconnecting link the most according to claim 1 or air switch, it is characterised in that: aobvious
Showing what unit (5) was mainly made up of the resistance R8 that resistance is 1K and light emitting diode D5, the positive pole of power module (2) is with R8 even
Connecing, the R8 other end is connected with the anode of light emitting diode, and the negative electrode of light emitting diode connects with the P21 interface of single machine unit (1)
Connecing, light emitting diode uses red light emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620473793.3U CN205691732U (en) | 2016-05-15 | 2016-05-15 | A kind of auxiliary detection instrument of transformer station disconnecting link or air switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620473793.3U CN205691732U (en) | 2016-05-15 | 2016-05-15 | A kind of auxiliary detection instrument of transformer station disconnecting link or air switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205691732U true CN205691732U (en) | 2016-11-16 |
Family
ID=57262774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620473793.3U Expired - Fee Related CN205691732U (en) | 2016-05-15 | 2016-05-15 | A kind of auxiliary detection instrument of transformer station disconnecting link or air switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205691732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586240A (en) * | 2018-12-11 | 2019-04-05 | 山东广域科技有限责任公司 | A kind of substation's disconnecting link monitoring device |
| CN111130130A (en) * | 2018-06-07 | 2020-05-08 | 安徽南瑞中天电力电子有限公司 | Multifunctional automatic phase changing system and method for medium and low voltage line |
-
2016
- 2016-05-15 CN CN201620473793.3U patent/CN205691732U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130130A (en) * | 2018-06-07 | 2020-05-08 | 安徽南瑞中天电力电子有限公司 | Multifunctional automatic phase changing system and method for medium and low voltage line |
| CN111276985A (en) * | 2018-06-07 | 2020-06-12 | 安徽南瑞中天电力电子有限公司 | Multifunctional automatic phase changing system and method for medium and low voltage line |
| CN111130130B (en) * | 2018-06-07 | 2021-02-12 | 安徽南瑞中天电力电子有限公司 | Multifunctional automatic phase changing system and method for medium and low voltage line |
| CN111276985B (en) * | 2018-06-07 | 2021-05-14 | 安徽南瑞中天电力电子有限公司 | Multifunctional automatic phase changing system and method for medium and low voltage line |
| CN109586240A (en) * | 2018-12-11 | 2019-04-05 | 山东广域科技有限责任公司 | A kind of substation's disconnecting link monitoring device |
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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: 20161116 Termination date: 20170515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |