CN108333464A - The quick verifying unit of cable core - Google Patents
The quick verifying unit of cable core Download PDFInfo
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- CN108333464A CN108333464A CN201810362999.2A CN201810362999A CN108333464A CN 108333464 A CN108333464 A CN 108333464A CN 201810362999 A CN201810362999 A CN 201810362999A CN 108333464 A CN108333464 A CN 108333464A
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- 238000005070 sampling Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 19
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- 230000000087 stabilizing effect Effects 0.000 claims description 20
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- 238000000034 method Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000001915 proofreading effect Effects 0.000 description 7
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- 238000004804 winding Methods 0.000 description 6
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
- G01R31/60—Identification of wires in a multicore cable
Abstract
The invention discloses the quick verifying units of cable core, it is made of the first verifying unit and the second verifying unit, first verifying unit and the second verifying unit have respectively included MICROCOMPUTER PROCESSING control unit, electric signal sampling unit, audio intercommunication unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, first p-wire and the second p-wire, the electric signal sampling unit, audio intercommunication unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, first p-wire and the second p-wire are electrically connected with MICROCOMPUTER PROCESSING control unit respectively, the method have the advantages that：The check and correction of cable core become it is more intuitive it is accurate, be easy to judge, effectively increase the accuracy of cable core check and correction；The workload for reducing cable core check and correction, saves human and material resources and time；Reduce the invalid operation in cable core check and correction operation process, improves work efficiency.
Description
Technical field
The present invention relates to the technical fields of verifying unit, are led more particularly to the technology of cable core verifying unit
Domain.
Background technology
Cable is common electric power auxiliary equipment in life, even more indispensable in the construction of substation, the base of cable
This structure composition includes core (conductor), four part of insulating layer, shielded layer and protective layer, is mainly used for transmission and the telecommunications of electric energy
Number transmission.In a piece cable, often includes more cores, differed from a core to tens cores, although every in same root cable
Core is labeled with different numbers, but more electricity can be all introduced in power plant, the terminal box of substation, convergence control cabinet or protection cabinets
Cable, this is allowed in the wiring of cable both ends, it is easy to the problem that two terminated line cores do not correspond to occurs, in order to ensure cable
Core wiring is correct, all needs to check the core of cable ends in power engineering debugging, substation equipment maintenance and repair and each electrical test,
To ensure number marking tube label that the core at both ends and the terminal of relevant device are correspondingly connected with and are covered on the both ends of same root core
It corresponds errorless, while also can detect that whether there is or not disconnected cores in cable, and for existing cable core proofreading method, it is mostly
It stands respectively a people at the both ends of cable, the work of school line is completed to coordinate by two people.
In working site, common core proofreading method is the survey on-off function for utilizing multimeter at present, and a people is in cable
One all cores are shorted together, for another person in another head of cable, optional single line core connects the one of multimeter
Then a measuring head is gone a little to touch other cores with another measuring head of multimeter, if can hear, multimeter is sent out " drop drop "
Sound, that is, illustrate that every core of this root cable is all well to be connected, when determined these cores belong to same root cable and
After good conducting, further according to the digital number on core in the upper number marking tube label of the both ends of cable core set and in corresponding equipment
Wiring on terminal, but when encountering secondary device maintenance or doing electrical test, the number that cable both ends core is covered need to be verified again
Pipe and whether wiring in arrangement terminal correct and cable core is whether there is or not when disconnection problem, need to by the core at cable both ends all from
It is removed in arrangement terminal, and school line is carried out by above step, core proof-reading will be allowed to become troublesome, especially by line
It is connected in arrangement terminal again after removing, takes longer and very easily by line wrong, bring many inconvenience to checking experiment work, significantly
Increase the possibility of second loop return wiring error.To this present situation, at present there are two types of improvement project, one is by cable one end
Add different voltage on each cable core（Or other demarcation signals for distinguishing core）, then measured in the other end of cable each
The voltage of cable core（Or other demarcation signals for distinguishing core）, core to differentiate the break-make of cable core and is carried out with this
Identification reduces artificial although one people of this method can be completed, but needs the core and equipment end of one, cable
Son separate and by the core separated with generate signal equipment connect, restart generate signal equipment and record connected it is every
The given voltage swing of root core（Or other demarcation signals for distinguishing core）, then in each core of the other end of cable measurement
On voltage swing（Or other demarcation signals for distinguishing core）, then by each core voltage of the voltage swing measured and record
Size（Or other demarcation signals for distinguishing core）It is compared, if carrying out school line by this improved method, not only increases
One workload, and wiring is complicated, time-consuming, also since cable has certain length, in a given voltage（Or its
It can distinguish the demarcation signal of core）There is loss when transmitting in the cable, there are errors for test in cable other end, easily occur
False judgment so that line inspection efficiency and accuracy or relatively low.Another scheme is to use two sets of radio devices, such as nothing
Line electricity verifying unit A and B, A devices are connected with the cathode p-wire of B devices by radio magnetic wave signal, and A devices are placed on electricity
One of cable, and by positive test clamp sub-folder on certain root cable under test core of cable, and B devices are then placed on the another of cable
One, examination is gone to touch each core in the end by the positive p-wire clip of B devices, when hearing that B devices send out " drop drop "
Sound when, as have found corresponding core and judge that the core is well connected, although this method can not have to
The core at cable both ends is removed from equipment, reduces the workload of wiring, but device is complicated, makes set of device
Cost it is larger, and the device in use exist distance limitation, the cathode of device may be prevented from reliably connecting apart from too far
It connects, when stream oriented device is too far apart, one for being also inconvenient to link up between two operating personnel, and working as cable core connects Current Mutual Inductance
When the secondary terminals of device or voltage transformer, cable core can not be judged whether by the polarity wrong of mutual inductor.Pass through observation
The common core proofreading method in working site and the relevant improvement project of access, discovery still have many deficiencies.It is mainly manifested in this
The several aspects of sample：First, when carrying out core check and correction debugging, need largely to take out stitches and wiring, intricate operation, time-consuming；Second,
When being related to the secondary connection of mutual inductor, it is difficult to judge whether cable core is connected in two polarity of mutual inductor secondary winding
In that correct polarity；Third, for existing improvement project, larger installations design structure is complicated, not Portable belt and operation.
Invention content
The purpose of the present invention be exactly in order to solve above-mentioned deficiency and to provide one kind simple in structure, it is easy to use, can be improved
The accuracy of core check and correction, and the human and material resources and the quick verifying unit of the cable core of time of core proof-reading can be saved.
In order to solve the above-mentioned technical problem technical solution that the present invention uses is as follows：
The quick verifying unit of cable core, it is made of the first verifying unit and the second verifying unit, first verifying unit
MICROCOMPUTER PROCESSING control unit, electric signal sampling unit, audio intercommunication unit, regulated power supply have been respectively included with the second verifying unit
Unit, strip light indicating unit, buzzer phonation unit, the first p-wire and the second p-wire, the electric signal sampling are single
Member, audio intercommunication unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, the first p-wire and second are surveyed
Examination line is electrically connected with MICROCOMPUTER PROCESSING control unit respectively.
The power supply unit of voltage regulation includes voltage stabilizing chip, P1 plug-in units, P2 plug-in units, the first capacitance to the 6th capacitance, 9V electricity
No. 1 pin of pond and first switch, the P1 plug-in units is electrically connected with the cathode of 9V batteries and reference ground, No. 2 pins of P1 plug-in units
It is electrically connected with the anode of 9V batteries and one end of first switch, the one of the other end of first switch and the first capacitance, the second capacitance
End and voltage stabilizing chip No. 1 pin be electrically connected, the first capacitance, the second capacitance the other end respectively with No. 2 pins of voltage stabilizing chip
Be electrically connected with No. 1 pin of P1 plug-in units, No. 3 pins of voltage stabilizing chip respectively with third capacitance, the 4th capacitance, the 5th capacitance, the
The electrical connection of No. 1 pin of one end of six capacitances and P2 plug-in units, No. 2 pins of P2 plug-in units respectively with third capacitance, the 4th capacitance, the
Five capacitances, the other end of the 6th capacitance, No. 2 pins of voltage stabilizing chip and reference ground electrical connection.
The computer processing unit includes microprocessor, the 24th resistance, the 15th capacitance, the 16th capacitance,
17 capacitances and reset key, one end of the 24th resistance are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units,
The other end of 24th resistance is electrically connected with No. 4 pins of the 17th capacitance, one end of reset key and microprocessor, and the tenth
Seven capacitances, reset key the other end be electrically connected with reference ground, one end of the 15th capacitance and the 16th capacitance, microprocessor
No. 8 pins are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the other end of the 15th capacitance and the 16th capacitance, micro-
No. 10 pins of processor are electrically connected with reference ground, and 1,2,5, No. 6 pin of microprocessor is electrically connected with electric signal sampling unit,
No. 3 pins of microprocessor are electrically connected with buzzer phonation unit, and 11~No. 20 pins of microprocessor and strip light instruction are single
Member electrical connection.
The electric signal sampling unit of first verifying unit includes the first diode to the 4th diode, the 9th 2 pole
12 diodes of Guan Zhi, the 21st diode to the 24th diode, the first operational amplifier, the 4th operation amplifier
The electric signal sampling unit of device, the first battery, first resistor and the 4th resistance, second verifying unit includes the five or two pole
Eight diodes of Guan Zhi, the 13rd diode to the 20th diode, second operational amplifier, third operational amplifier, second
Battery, 3rd resistor and the 5th resistance, first battery anode respectively with one end of the 4th resistance, the first diode just
The cathode of pole and the second diode is electrically connected, the anode of one end and the first battery of the first p-wire of first verifying unit
Electrical connection, the cathode of first battery respectively with the other end of the 4th resistance, one end of first resistor, the 9th diode just
The cathode electrical connection of pole, the cathode of the tenth diode, the anode of the 11st diode and the 12nd diode, first resistor it is another
One end is electrically connected with the cathode of the anode of third diode, the 4th diode, one end of the second p-wire of the first verifying unit
It is electrically connected with the node of the 4th diode and first resistor, the anode of the second diode and the anode of the tenth diode, the four or two
Anode, the eight or two pole of the anode of pole pipe and the anode of the 12nd diode, the anode of the 6th diode and the 14th diode
Anode and the anode of the 16th diode of pipe are electrically connected after being electrically connected with reference ground, the first diode and the 9th diode
Cathode be electrically connected respectively with No. 3 pins of the first operational amplifier, No. 7 pins of the first operational amplifier and regulated power supply list
No. 1 pin of first P2 plug-in units is electrically connected, and No. 4 pins of the first operational amplifier are electrically connected with reference ground, the first operational amplifier
No. 2 pins and No. 6 pin short circuits after with the anode of the 23rd diode, the cathode of the 24th diode and first check and correction
No. 1 pin of the microprocessor of device is electrically connected, and the cathode of the 23rd diode draws with No. 1 of power supply unit of voltage regulation P2 plug-in units
Foot is electrically connected, and the anode of the 24th diode is electrically connected with reference ground, cathode, the 11st diode of the third diode
Cathode be electrically connected with No. 3 pins of four-operational amplifier, No. 7 pins of four-operational amplifier and power supply unit of voltage regulation P2
No. 1 pin of plug-in unit is electrically connected, and No. 4 pins of four-operational amplifier are electrically connected with reference ground, No. 2 of four-operational amplifier
After pin and No. 6 pin short circuits with the anode of the 21st diode, the cathode and the first verifying unit of the 22nd diode
Microprocessor the electrical connection of No. 2 pins, the cathode of the 21st diode and No. 1 pin electricity of power supply unit of voltage regulation P2 plug-in units
The anode of connection, the 22nd diode is electrically connected with reference ground, anode and the 5th resistance and third electricity of second battery
One end of resistance, the anode of the 5th diode, the cathode of the 6th diode, the anode of the 7th diode, the 8th diode cathode
Electrical connection, the other end of 3rd resistor are electrically connected with the cathode of the anode of the 13rd diode, the 14th diode, and described second
One end of second p-wire of verifying unit is electrically connected with the node of the 14th diode and 3rd resistor, the cathode of the second battery
It is electrically connected with the other end of the 5th resistance, the anode of the 15th diode, the cathode of the 16th diode, the second verifying unit
One end of first p-wire is electrically connected with the cathode of the second battery, the cathode of the 5th diode, the cathode of the 13rd diode with
No. 3 pins of second operational amplifier are electrically connected, No. 7 pins of second operational amplifier and the 1 of power supply unit of voltage regulation P2 plug-in units
The electrical connection of number pin, No. 4 pins of second operational amplifier are electrically connected with reference ground, No. 2 pins of second operational amplifier and 6
After number pin short circuit with the microprocessor of the anode of the 17th diode, the cathode of the 18th diode and the second verifying unit
No. 6 pin electrical connections, the cathode of the 17th diode are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, and the 18th
The anode of pole pipe is electrically connected with reference ground, the cathode of the 7th diode, the cathode and third operational amplifier of the 15th diode
The electrical connection of No. 3 pins, No. 7 pins of third operational amplifier are electrically connected with No. 1 pin of the P2 plug-in units of voltage regulation unit, third
No. 4 pins of operational amplifier are electrically connected with reference ground, with after No. 2 pins and No. 6 pin short circuits of third operational amplifier
No. 5 pins of the microprocessor of the anode of 19 diodes, the cathode of the 20th diode and the second verifying unit are electrically connected, the
The cathode of 19 diodes is electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, anode and the reference of the 20th diode
Ground is electrically connected.
The audio intercommunication unit includes microphone, audio amplification unit, oscillator, modulation circuit unit, High frequency amplification
Unit, transmitting-receiving bandpass filter, hair/receipts antenna, frequency-selecting amplifying unit, local oscillator unit, mixting circuit unit, intermediate level circuit list
Member, demodulator circuit unit, audio amplification unit and loudspeaker, the microphone, audio amplification unit, modulation circuit unit, high frequency are put
Big unit, transmitting-receiving bandpass filter, frequency-selecting amplifying unit, mixting circuit unit, intermediate level circuit unit, demodulator circuit unit, sound
Frequency amplifying unit and loudspeaker are sequentially connected electrically, and the oscillator is electrically connected with modulation circuit unit, the hair/receipts antenna and transmitting-receiving
Bandpass filter is electrically connected, and the local oscillator unit is electrically connected with mixting circuit unit.
The buzzer phonation unit includes the tenth resistance, the 21st resistance, the 30th resistance, buzzer and three poles
Pipe, one end of the 30th resistance is electrically connected with No. 3 pins of microprocessor, the other end of the 30th resistance and triode
Base stage is electrically connected, and the emitter-base bandgap grading of triode is electrically connected with reference ground, the collector of triode and the 21st resistance and buzzer
One end is electrically connected, and the other end of the 21st resistance is electrically connected with the other end of one end of the tenth resistance, buzzer, the tenth resistance
The anode of the other end and the 9V batteries of power supply unit of voltage regulation be electrically connected.
The strip light indicating unit includes the first light emitting diode to the tenth light emitting diode, eleventh resistor to
11~No. 20 pins of 20 resistance, the microprocessor are electrically connected with one end of eleventh resistor to the 20th resistance, and the tenth
The other end of one resistance to the 20th resistance is electrically connected with one end of the first light emitting diode to the tenth light emitting diode respectively, the
The other end of one light emitting diode to the tenth light emitting diode is electrically connected with reference ground.
The microprocessor is STC15W408 microcontrollers.
The model 78L05 of the voltage stabilizing chip.
The present invention is using the attainable advantageous effect of above-mentioned technical solution institute：
When 1, carrying out cable core check and correction using the present apparatus, if buzzer sends out the sound of " drop drop ", but the strip light being lit
Lamp lattice number is less than nine, then illustrates the secondary circuit coil being connected with core to be measured（Such as divide-shut brake coil, relay
The secondary winding etc. of actuation coil, mutual inductor）It is connected in the test loop of the present apparatus at this time, i.e., core and secondary circuit to be measured
Wiring error occurs for the connecting terminal of coil, to when cable core is related to the secondary connection of mutual inductor, can quickly judge
Go out whether cable core is connected in two polarity of mutual inductor secondary winding in that correct polarity；If buzzer occur does not have sound
The case where sound, strip light does not work yet, then illustrates that the failure of broken string or wiring error occurs for core to be measured；If buzzer does not have sound
Sound, but strip light has part to be lit, then illustrates that core to be measured has concatenated the failure of big resistance；To make cable core
Check and correction become it is more intuitive it is accurate, be easy to judge, effectively increase the accuracy of cable core check and correction.
It, only need to be by the first test of the first verifying unit and the second verifying unit when 2, carrying out core check and correction using the present apparatus
The grounding shell, ground connection band iron or the ground connection substation groundings such as soft copper pigtail that line is connected on switch board or terminal box respectively are online, by the
Second p-wire of one verifying unit and the second verifying unit is connected on respectively in the respective terminal to connect with cable under test core,
Without removing at the both ends of cable core from arrangement terminal, so as to avoid largely line procedures are disconnected, electricity is greatly reduced
The workload of cable core check and correction, saves human and material resources and time.
3, the operating personnel for holding the first verifying unit and the second verifying unit can also carry out long distance by audio intercommunication unit
From communication, to overcome distance limitation, reduce cable core check and correction operation process in invalid operation, improve
Working efficiency.
4, the present apparatus aims at transforming plant protecting debugging and designs line, simple in structure, reasonable design, carries and using very
It is convenient.
Description of the drawings
Fig. 1 is the circuit diagram of power supply unit of voltage regulation；
Fig. 2 is the circuit diagram of electric signal sampling unit；
Fig. 3 is the circuit diagram of audio intercommunication unit；
Fig. 4 is the circuit diagram of buzzer phonation unit；
Fig. 5 is the circuit diagram of strip light indicating unit；
Fig. 6 is the circuit diagram of MICROCOMPUTER PROCESSING control unit；
Fig. 7 is the work-based logic figure of the present invention；
Fig. 8 is the appearance vertical view of the present invention；
Fig. 9 is the structure diagram of the present invention.
Specific implementation mode
As shown in Figure 9, the quick verifying unit of cable core, it is made of the first verifying unit and the second verifying unit, institute
It states the first verifying unit and the second verifying unit has respectively included MICROCOMPUTER PROCESSING control unit, electric signal sampling unit, audio pair
Say unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, the first p-wire and the second p-wire, institute
State electric signal sampling unit, audio intercommunication unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, first
P-wire and the second p-wire are electrically connected with MICROCOMPUTER PROCESSING control unit respectively.The electricity that will be sampled by electric signal sampling unit
Pressure signal reaches MICROCOMPUTER PROCESSING control unit after carrying out isolation amplification, is converted the voice signal of acquisition by audio intercommunication unit
At reaching MICROCOMPUTER PROCESSING control unit after electric signal, and will be fed back to after Electric signal processing conversion by MICROCOMPUTER PROCESSING control unit
The electric signal fed back to is converted into being transmitted to corresponding audio pair after electromagnetic signal by audio intercommunication unit by audio intercommunication unit
Say that unit, power supply unit of voltage regulation are MICROCOMPUTER PROCESSING control unit, audio intercommunication unit, strip light indicating unit and buzzer sounding
Unit provides stable+5V working powers, and it is single that strip light indicating unit, buzzer phonation unit are all controlled by MICROCOMPUTER PROCESSING control
Member, and the control instruction sent out according to MICROCOMPUTER PROCESSING control unit is reminded into traveling optical signal instruction and voice signal.
As shown in Figure 1, the power supply unit of voltage regulation include voltage stabilizing chip U2, P1 plug-in unit, P2 plug-in units, the first capacitance C1 extremely
6th capacitance C6,9V battery and first switch S0, No. 1 pin of the P1 plug-in units and the cathode of 9V batteries and reference ground GND electricity
Connection, No. 2 pins of P1 plug-in units are electrically connected with one end of the anode of 9V batteries and first switch S0, the other end of first switch S0
It is electrically connected with No. 1 pin of the first capacitance C1, one end of the second capacitance C2 and voltage stabilizing chip U2, the first capacitance C1, the second capacitance
The other end of C2 is electrically connected with No. 1 pin of No. 2 pins of voltage stabilizing chip U2 and P1 plug-in units respectively, and No. 3 of voltage stabilizing chip U2 are drawn
Foot respectively with third capacitance C3, the 4th capacitance C4, the 5th capacitance C5, one end of the 6th capacitance C6 and P2 plug-in units No. 1 pin electricity
Connection, No. 2 pins of P2 plug-in units respectively with third capacitance C3, the 4th capacitance C4, the 5th capacitance C5, the 6th capacitance C6 it is another
End, No. 2 pins of voltage stabilizing chip U2 and reference ground GND electrical connections, export 5V voltages, the model of voltage stabilizing chip U2 from P2 plug-in units
For 78L05.
As shown in Figure 6, the computer processing unit includes microprocessor U1, the 24th resistance R24, the 15th capacitance
C15, the 16th capacitance C16, the 17th capacitance C17 and reset key S1, one end and the voltage stabilizing electricity of the 24th resistance R24
No. 1 pin of source unit P2 plug-in units is electrically connected, the other end and the 17th capacitance C17, reset key S1 of the 24th resistance R24
One end and microprocessor U1 No. 4 pins electrical connection, the 17th capacitance C17, the other end of reset key S1 and reference ground GND
One end of electrical connection, the 15th capacitance C15 and the 16th capacitance C16, No. 8 pins and power supply unit of voltage regulation P2 of microprocessor U1
No. 1 pin of plug-in unit is electrically connected, the other end of the 15th capacitance C15 and the 16th capacitance C16, No. 10 pins of microprocessor U1
It is electrically connected with reference ground GND, 1,2,5, No. 6 pin of microprocessor U1 is electrically connected with electric signal sampling unit, microprocessor U1
No. 3 pins be electrically connected with buzzer phonation unit, 11~No. 20 pins and the strip light indicating unit of microprocessor U1 are electrically connected
It connects.Microprocessor U1 is STC15W408 microcontrollers, and handling the voltage that electric signal sampling unit is sent by microprocessor U1 believes
Number, and control buzzer sounding and number that strip light is lighted.
As shown in Figure 2, the electric signal sampling unit of first verifying unit includes the first diode D1 to the four or two
Pole pipe D4, the 9th diode D9 are to the 12nd diode D12, the 21st diode D21 to the 24th diode D24,
One operational amplifier A R1, four-operational amplifier AR4, the first battery BT1, first resistor R1 and the 4th resistance R4, described second
The electric signal sampling unit of verifying unit includes the 5th diode D5 to the 8th diode D8, the 13rd diode D13 to
20 diode D20, second operational amplifier AR2, third operational amplifier A R3, the second battery BT2,3rd resistor R3 and
Five resistance R5, the first battery BT1 anode respectively with one end of the 4th resistance R4, the anode and second of the first diode D1
The cathode of diode D2 is electrically connected, the anode of one end and the first battery BT1 of the first p-wire 20 of first verifying unit
Electrical connection, the cathode of the first battery BT1 respectively with the other end of the 4th resistance R4, one end of first resistor R1, the 9th 2
The anode of pole pipe D9, the cathode of the tenth diode D10, the 11st diode D11 anode and the 12nd diode D12 cathode
Electrical connection, the other end of first resistor R1 are electrically connected with the cathode of the anode of third diode D3, the 4th diode D4, the first school
One end of second p-wire of device is electrically connected with the node of the 4th diode D4 and first resistor R1, the second diode D2's
Anode, the six or two pole of anode and the anode of the tenth diode D10, the anode of the 4th diode D4 and the 12nd diode D12
The anode of pipe D6 and the anode of the 14th diode D14, the anode point of the anode and the 16th diode D16 of the 8th diode D8
Not electricity Lian Jie after be electrically connected with reference ground GND, the cathode of the first diode D1 and the 9th diode D9 are put with the first operation respectively
No. 3 pins electrical connection of big device AR1, No. 7 pins of the first operational amplifier A R1 draw with No. 1 of power supply unit of voltage regulation P2 plug-in units
Foot is electrically connected, and No. 4 pins of the first operational amplifier A R1 are electrically connected with reference ground GND, and No. 2 of the first operational amplifier A R1 are drawn
It is proofreaded with the anode of the 23rd diode D23, the cathode of the 24th diode D24 and first after foot and No. 6 pin short circuits
No. 1 pin of the microprocessor U1 of device is electrically connected, cathode and the power supply unit of voltage regulation P2 plug-in units of the 23rd diode D23
No. 1 pin electrical connection, the anode of the 24th diode D24 are electrically connected with reference ground GND, and the third diode D3's is negative
Pole, the cathode of the 11st diode D11 are electrically connected with No. 3 pins of four-operational amplifier AR4, four-operational amplifier AR4
No. 7 pins be electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, No. 4 pins of four-operational amplifier AR4 and reference
Ground GND is electrically connected, after No. 2 pins and No. 6 pin short circuits of four-operational amplifier AR4 just with the 21st diode D21
No. 2 pins of the microprocessor U1 of pole, the cathode of the 22nd diode D22 and the first verifying unit are electrically connected, and the 21st
The cathode of diode D21 is electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the 22nd diode D22 anode with
Reference ground GND electrical connections, one end, the five or two pole of the anode and the 5th resistance R5 and 3rd resistor R3 of the second battery BT2
The cathode electrical connection of the anode of pipe D5, the cathode of the 6th diode D6, the anode of the 7th diode D7, the 8th diode D8, the
The other end of three resistance R3 is electrically connected with the cathode of the anode of the 13rd diode D13, the 14th diode D14, and described second
One end of second p-wire 70 of verifying unit is electrically connected with the node of the 14th diode D14 and 3rd resistor R3, the second electricity
The negative electricity of the other end of the cathode of pond BT2 and the 5th resistance R5, the anode of the 15th diode D15, the 16th diode D16
Connection, one end of the first p-wire of the second verifying unit are electrically connected with the cathode of the second battery BT2, and the 5th diode D5's is negative
Pole, the cathode of the 13rd diode D13 are electrically connected with No. 3 pins of second operational amplifier AR2, second operational amplifier AR2
No. 7 pins be electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, No. 4 pins of second operational amplifier AR2 and reference
Ground GND is electrically connected, after No. 2 pins and No. 6 pin short circuits of second operational amplifier AR2 with the anode of the 17th diode D17,
No. 6 pins of the cathode of 18th diode D18 and the microprocessor U1 of the second verifying unit are electrically connected, the 17th diode
The cathode of D17 is electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, anode and the reference ground GND of the 18th diode D18
Electrical connection, the cathode of the 7th diode D7, the cathode of the 15th diode D15 and third operational amplifier A R3 No. 3 pin electricity
Connection, No. 7 pins of third operational amplifier A R3 are electrically connected with No. 1 pin of the P2 plug-in units of voltage regulation unit, third operation amplifier
No. 4 pins of device AR3 are electrically connected with reference ground GND, with after No. 2 pins and No. 6 pin short circuits of third operational amplifier A R3
No. 5 pins of the microprocessor U1 of the anode of 19 diode D19, the cathode of the 20th diode D20 and the second verifying unit
Electrical connection, the cathode of the 19th diode D19 are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the 20th diode
The anode of D20 is electrically connected with reference ground GND.
Dotted line frame 10 represents the earth mat of substation in Fig. 2, and 20 and 60 represent the first verifying unit and the second verifying unit
First p-wire, second resistance R2 represent the equivalent resistance for being tested cable core, and the 4th resistance R4 and the 5th resistance R5 are constituted
Sample resistance, the first diode D1 to the 16th diode D16 are used for rectification, and the first operational amplifier A R1 to the 4th operation is put
Big device AR4 is used for voltage follow, prevents late-class circuit from influencing the electric signal sampling of front stage circuits, the 17th diode D17 to the
24 diode D24 prevent signal voltage excessively high and burn out microprocessor U1 for limiting output signal voltage range.When need
When carrying out core check and correction, the other end of the first p-wire 20 of the first verifying unit is clipped in switch board or terminal by wire clamp
The grounding net of transformer substation such as grounding shell, ground connection band iron or the ground connection soft copper pigtail of case（The lines being equivalent in dotted line frame 10）One end
On, the other end of the second p-wire 40 of the first verifying unit is clipped in cable under test core by wire clamp（It is equivalent to the second electricity
Hinder R2）One end, the other end of the first p-wire 60 of the second verifying unit is clipped in grounding net of transformer substation by wire clamp（It is equivalent
Lines in dotted line frame 10）The other end on, 70 other end of the second p-wire of the second verifying unit is clipped in by wire clamp
Cable under test core（It is equivalent to second resistance R2）The other end on.
As shown in Figure 3, the audio intercommunication unit includes microphone, audio amplification unit, oscillator, modulation circuit list
Member, high-frequency amplifying unit, transmitting-receiving bandpass filter, hair/receipts antenna, frequency-selecting amplifying unit, local oscillator unit, mixting circuit unit,
Intermediate level circuit unit, demodulator circuit unit, audio amplification unit and loudspeaker, the microphone, audio amplification unit, modulation circuit list
Member, high-frequency amplifying unit, transmitting-receiving bandpass filter, frequency-selecting amplifying unit, mixting circuit unit, intermediate level circuit unit, demodulation electricity
Road unit, audio amplification unit and loudspeaker are sequentially connected electrically, and the oscillator is electrically connected with modulation circuit unit, the hair/receipts
Antenna is electrically connected with transmitting-receiving bandpass filter, and the local oscillator unit is electrically connected with mixting circuit unit.
As shown in Figure 4, the buzzer phonation unit includes the tenth resistance R10, the 21st resistance R21, the 30th
Resistance R30, buzzer LS1 and triode Q1, one end of the 30th resistance R30 are electrically connected with No. 3 pins of microprocessor U1
It connects, the other end of the 30th resistance R30 is electrically connected with the base stage of triode Q1, and emitter-base bandgap grading and the reference ground GND of triode Q1 are electrically connected
It connects, the collector of triode Q1 is electrically connected with one end of the 21st resistance R21 and buzzer LS1, the 21st resistance R21's
The other end is electrically connected with the other end of one end of the tenth resistance R10, buzzer LS1, the other end and the voltage stabilizing electricity of the tenth resistance R10
The anode electrical connection of the 9V batteries of source unit.Buzzer LS1 is controlled by No. 3 pins of microprocessor U1, as microprocessor U1
No. 3 pins when sending out high level signal, driving triode Q1 makes buzzer LS1 send out the sound of " drop drop ".
As shown in Figure 5, the strip light indicating unit include strip light, the first light emitting diode D01 to the tenth shine
Diode D010, eleventh resistor R11 are to the 20th resistance R20, and 11~No. 20 pins of the microprocessor U1 are respectively with
One end of 11 resistance R11 to the 20th resistance R20 is electrically connected, the other end of eleventh resistor R11 to the 20th resistance R20 with
One end of first light emitting diode D01 to the tenth light emitting diode D010 is electrically connected, and the first light emitting diode D01 to the tenth shines
The other end of diode D010 is electrically connected with reference ground GND, the first light emitting diode D01 to the tenth light emitting diode D010
In each light emitting diode correspond to lamp lattice of strip light, that light emitting diode is lighted is controlled by microprocessor U1
It counts to judge that cable core proofreads situation.
As shown in Figure 8, wherein serial number 01 represents the first verifying unit or first with wire clamp of the second verifying unit is surveyed
Try line；Serial number 02 represents battery case, and the first battery BT1 or the second battery BT2 is inside housed, and powers for electric signal sampling unit, sequence
Number 03 represents the second p-wire with wire clamp or needle-like metal contact of the first verifying unit or the second verifying unit, serial number 04
Hair/receipts antenna is represented, for sending and receiving electromagnetic wave, serial number 05 represents buzzer, when measure loop is connected, sends out " drop
The sound of drop ", serial number 06 represent strip light, are lit lamp lattice number and are determined by detected cable core conducting resistance, serial number 07
Representing the integration module of loudspeaker and microphone, serial number 08 represents power supply box, the interior 9V square batteries equipped with power supply unit of voltage regulation,
For powering to whole device.
Cable core is generally fine copper material, and resistivity of the copper at 20 degrees Celsius is 17.241 Ω mm2/ km, substation
Cable length between each terminal box is generally several meters to hundreds of meters, and core sectional area is 1.5 mm2、2.5 mm2、4 mm2Deng leading
Line resistance calculation formula is, wherein R expression conductor resistances,Indicate 20 degrees Celsius when resistivity,Indicate that conducting wire is long
Degree, S indicate sectional area of wire, it can thus be appreciated that the resistance value of cable core is usually less than 1 Ω, and divide-shut brake coil, mutual inductor two
The resistance of secondary winding differs in more than ten Europe to Europe more than 200, and the resistance more than unit cable core is big, and thus setting is when tested electricity
The resistance of cable core then lights 10 lamp lattice when being less than 0.5 Ω, when the resistance of tested cable core is between 0.5 Ω and 1 Ω
9 lamp lattice are then lighted, 8 lamp lattice are then lighted when the resistance of tested cable core is between 1 Ω and 10 Ω, when tested cable
7 lamp lattice are then lighted when the resistance of core is between 10 Ω and 20 Ω, when the resistance of tested cable core is between 20 Ω and 30 Ω
Shi Ze lights 6 lamp lattice, and 5 lamp lattice are then lighted when the resistance of tested cable core is between 30 Ω and 40 Ω, when tested electricity
4 lamp lattice are then lighted when the resistance of cable core is between 40 Ω and 50 Ω, when the resistance of tested cable core is in 50 Ω and 100 Ω
Between when then light 3 lamp lattice, then light 2 lamp lattice when the resistance of tested cable core is between 100 Ω and 900 Ω, when
1 lamp lattice is then lighted when the resistance of tested cable core is between 900 Ω and 9900 Ω, when the resistance of tested cable core is more than
Then no lamp lattice are lit when 9900 Ω.
When carrying out core check and correction using the device, needs two people to coordinate and carry out, a people holds the first verifying unit, and a people holds second
Verifying unit, two people are stood respectively at the both ends of cable to be tested, since the secondary line that cable core is constituted is usually from mutual inductance
Device, isolating switch mechanism case, stands and is set out with the second loop return wirings such as power cabinet terminal or terminal block at circuit breaker mechanism case, passes through
After terminal box, then the screen cabinet such as be transferred to relay protection cabinet, observing and controlling cabinet, provide various electrical letters to protective device, measure and control device etc.
Number, so when carrying out core check and correction, a usually people stands at terminal box（Secondary line collects in a cabinet, and the inside has
Many terminal blocks facilitate the switching of each road electric signal）, another people station connects mutual inductor, breaker or disconnecting switch etc. are secondary
At line terminals, protection cabinets or observing and controlling cabinet.Under normal circumstances, the both ends of cable core have all been connected on the respective terminal of corresponding equipment
It above and at core both ends is cased with corresponding number marking tube, when carrying out core proof-reading, holds the first verifying unit and the second school
To two staff of device according to the number marking tube on the secondary connection diagram and cable core of working site, can find same
Root cable core to be detected, the operating personnel for holding the first verifying unit and the second verifying unit can also be by pair on device
It says that function is linked up to check the number marking tube on found cable core, after finding cable core to be detected, holds
The staff of first verifying unit and the second verifying unit will be connected on the first verifying unit and the second verifying unit
One p-wire is clipped in the arbitrary conductor being connected with grounding net of transformer substation by wire clamp（Such as outside the ground connection of switch board or terminal box
Shell, ground connection band iron, ground connection soft copper pigtail etc.）On, the second p-wire for will being connected on the first verifying unit and the second verifying unit
It is connected in the respective terminal to connect with cable under test core by wire clamp or needle-like metal contact, at this time the first verifying unit and
The buzzer of two verifying units can send out the sound of " drop drop ", while the strip light on the first verifying unit and the second verifying unit
It has nine or ten lamp lattice is lit.If buzzer sends out the sound of " drop drop ", but the strip light lamp lattice number being lit is few
In nine, then illustrate the secondary circuit coil being connected with core to be measured（Such as divide-shut brake coil, relay actuation coil,
The secondary winding etc. of mutual inductor）It is connected in the test loop of the present apparatus at this time, i.e., core to be measured connects with secondary circuit coil
Wiring error occurs for line terminals, to when cable core is related to the secondary connection of mutual inductor, can quickly judge cable
Whether core is connected in two polarity of mutual inductor secondary winding in that correct polarity；If buzzer occur does not have sound, bar shaped
The case where lamp does not work yet then illustrates that the failure of broken string or wiring error occurs for core to be measured；If buzzer does not have sound, but bar shaped
Lamp has part to be lit, then illustrates that core to be measured has concatenated the failure of big resistance.Hold the first verifying unit and the second check and correction
The intercommunication function that the operating personnel of device can also be carried by device carries out remote language communication, facilitates and completes other electricity
The proof-reading of cable core.
As shown in Figure 7, the present apparatus when in use, first turns on installation's power source, microprocessor U1 initialization, then by first
It is online that first p-wire of verifying unit and the second verifying unit is connected on substation grounding respectively, by the first verifying unit and second
Second p-wire of verifying unit is connected on the both ends of cable core to be verified, starts to acquire the first battery at this time inside device
The output voltage U of BT1R4With the voltage U on first resistor R1R1, the two collected voltages do division fortune by microprocessor U1
It calculates, acquires ratio s=U of two voltagesR1/UR4, when 0.995<When s≤1, strip light bright 10 lamp lattice from bottom to up（Expire lattice all light）
And buzzer sends out " drop drop " sound, when 0.990<When s≤0.995, strip light bright 9 lamp lattice and buzzer is sent out from bottom to up
" drop drop " sound, when 0.910<When s≤0.990, bright 8 lamp lattice and buzzer send out " drop drop " sound to strip light from bottom to up, when
0.830<When s≤0.910, bright 7 lamp lattice and buzzer send out " drop drop " sound to strip light from bottom to up, when 0.770<s≤0.830
When, bright 6 lamp lattice and buzzer send out " drop drop " sound to strip light from bottom to up, when 0.710<When s≤0.770, strip light is under
Supreme bright 5 lamp lattice and buzzer send out " drop drop " sound, when 0.670<When s≤0.710, strip light bright 4 lamp lattice from bottom to up
And buzzer sends out " drop drop " sound, when 0.50<When s≤0.670, bright 3 lamp lattice and buzzer send out " drop to strip light from bottom to up
Drop " sound, when 0.1<When s≤0.5, strip light bright 2 lamp lattice and buzzer does not make a sound from bottom to up, when 0.01<s≤0.1
When, strip light bright 1 lamp lattice and buzzer does not make a sound from bottom to up, as s≤0.01, strip light lamp lattice do not work all
And buzzer does not also make a sound.When school line is correct, it should have 9 and the above strip light lattice are lit, and have buzzing
Device makes a sound, if there is being lit strip light lamp lattice number less than 9 or buzzer does not send out " drop drop " sound, can determine whether
Haveing cable core has broken string or error connection failure.
Claims (9)
1. the quick verifying unit of cable core, it is characterised in that：It is made of the first verifying unit and the second verifying unit, described
First verifying unit and the second verifying unit have respectively included MICROCOMPUTER PROCESSING control unit, electric signal sampling unit, audio intercommunication
Unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, the first p-wire and the second p-wire, it is described
Electric signal sampling unit, audio intercommunication unit, power supply unit of voltage regulation, strip light indicating unit, buzzer phonation unit, first are surveyed
Examination line and the second p-wire are electrically connected with MICROCOMPUTER PROCESSING control unit respectively.
2. the quick verifying unit of cable core according to claim 1, it is characterised in that：The power supply unit of voltage regulation includes
There are voltage stabilizing chip, P1 plug-in units, P2 plug-in units, the first capacitance to the 6th capacitance, 9V batteries and first switch, No. 1 of the P1 plug-in units
Pin is electrically connected with the cathode of 9V batteries and reference ground, No. 2 pins of P1 plug-in units and positive and first switch the one of 9V batteries
End electrical connection, the other end of first switch are electrically connected with No. 1 pin of the first capacitance, one end of the second capacitance and voltage stabilizing chip,
First capacitance, the second capacitance the other end be electrically connected respectively with No. 1 pin of No. 2 pins of voltage stabilizing chip and P1 plug-in units, voltage stabilizing
No. 3 pins of chip respectively with third capacitance, the 4th capacitance, the 5th capacitance, one end of the 6th capacitance and P2 plug-in units No. 1 pin
Electrical connection, No. 2 pins of P2 plug-in units respectively with third capacitance, the 4th capacitance, the 5th capacitance, the other end of the 6th capacitance, voltage stabilizing
No. 2 pins and reference ground of chip are electrically connected.
3. the quick verifying unit of cable core according to claim 2, it is characterised in that：The computer processing unit includes
There are microprocessor, the 24th resistance, the 15th capacitance, the 16th capacitance, the 17th capacitance and a reset key, the described 20th
One end of four resistance is electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the other end and the 17th of the 24th resistance
No. 4 pins of capacitance, one end of reset key and microprocessor are electrically connected, the 17th capacitance, reset key the other end and ginseng
It is electrically connected with examining, one end of the 15th capacitance and the 16th capacitance, No. 8 pins of microprocessor and power supply unit of voltage regulation P2 plug-in units
The electrical connection of No. 1 pin, the other end of the 15th capacitance and the 16th capacitance, No. 10 pins of microprocessor and reference ground are electrically connected
It connects, 1,2,5, No. 6 pin of microprocessor is electrically connected with electric signal sampling unit, and No. 3 pins and the buzzer of microprocessor are sent out
Sound unit is electrically connected, and 11~No. 20 pins of microprocessor are electrically connected with strip light indicating unit.
4. the quick verifying unit of cable core according to claim 3, it is characterised in that：The electricity of first verifying unit
Signal sampling unit includes the first diode to the 4th diode, the 9th diode to the 12nd diode, the 21st
Pole pipe is electric to the 24th diode, the first operational amplifier, four-operational amplifier, the first battery, first resistor and the 4th
Resistance, the electric signal sampling unit of second verifying unit include the 5th diode to the 8th diode, the 13rd diode
It is described to the 20th diode, second operational amplifier, third operational amplifier, the second battery, 3rd resistor and the 5th resistance
The anode of first battery is electrically connected with the cathode of one end of the 4th resistance, the anode of the first diode and the second diode respectively,
One end of first p-wire of first verifying unit is electrically connected with the anode of the first battery, the cathode point of first battery
Not with the other end of the 4th resistance, one end of first resistor, the anode of the 9th diode, the cathode of the tenth diode, the 11st
The anode of diode and the cathode of the 12nd diode are electrically connected, the other end of first resistor and the anode of third diode, the
The cathode of four diodes is electrically connected, the knot of one end and the 4th diode and first resistor of the second p-wire of the first verifying unit
Point electrical connection, the anode of the second diode and the anode of the tenth diode, anode and the 12nd diode of the 4th diode
Anode, the anode of the anode of the 6th diode and the 14th diode, the anode of the 8th diode and the 16th diode are just
Pole is electrically connected after being electrically connected with reference ground, the cathode of the first diode and the 9th diode respectively with the first operational amplifier
The electrical connection of No. 3 pins, No. 7 pins of the first operational amplifier are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the
No. 4 pins of one operational amplifier are electrically connected with reference ground, after No. 2 pins and No. 6 pin short circuits of the first operational amplifier with
No. 1 pin electricity of the microprocessor of the anode of the 23rd diode, the cathode of the 24th diode and the first verifying unit
Connection, the cathode of the 23rd diode are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the 24th diode
Anode be electrically connected with reference ground, the cathode of the third diode, the cathode of the 11st diode and four-operational amplifier 3
The electrical connection of number pin, No. 7 pins of four-operational amplifier are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, and the 4th
No. 4 pins of operational amplifier are electrically connected with reference ground, with after No. 2 pins and No. 6 pin short circuits of four-operational amplifier
No. 2 pins of the microprocessor of the anode of 21 diodes, the cathode of the 22nd diode and the first verifying unit are electrically connected
It connects, the cathode of the 21st diode is electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, and the 22nd diode is just
Pole is electrically connected with reference ground, and the anode of second battery and one end of the 5th resistance and 3rd resistor, the 5th diode are just
The cathode electrical connection of pole, the cathode of the 6th diode, the anode of the 7th diode, the 8th diode, the other end of 3rd resistor
It is electrically connected with the cathode of the anode of the 13rd diode, the 14th diode, the second p-wire of second verifying unit
One end is electrically connected with the node of the 14th diode and 3rd resistor, the other end of the cathode of the second battery and the 5th resistance,
The cathode electrical connection of the anode of 15 diodes, the 16th diode, one end of the first p-wire of the second verifying unit and the
The cathode of two batteries is electrically connected, and cathode, the cathode of the 13rd diode and No. 3 of second operational amplifier of the 5th diode are drawn
Foot is electrically connected, and No. 7 pins of second operational amplifier are electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, the second operation
No. 4 pins of amplifier are electrically connected with reference ground, with the 17th after No. 2 pins and No. 6 pin short circuits of second operational amplifier
No. 6 pins of the microprocessor of the anode of diode, the cathode of the 18th diode and the second verifying unit are electrically connected, and the 17th
The cathode of diode is electrically connected with No. 1 pin of power supply unit of voltage regulation P2 plug-in units, anode and the reference ground electricity of the 18th diode
Connection, the cathode of the 7th diode, the cathode of the 15th diode are electrically connected with No. 3 pins of third operational amplifier, third
No. 7 pins of operational amplifier are electrically connected with No. 1 pin of the P2 plug-in units of voltage regulation unit, No. 4 pins of third operational amplifier
Be electrically connected with reference ground, after No. 2 pins and No. 6 pin short circuits of third operational amplifier with the anode of the 19th diode,
No. 5 pins of the microprocessor of the cathode of 20 diodes and the second verifying unit are electrically connected, the cathode of the 19th diode with
No. 1 pin of power supply unit of voltage regulation P2 plug-in units is electrically connected, and the anode of the 20th diode is electrically connected with reference ground.
5. the quick verifying unit of cable core according to claim 3 or 4, it is characterised in that：The audio intercommunication unit
Include microphone, audio amplification unit, oscillator, modulation circuit unit, high-frequency amplifying unit, transmitting-receiving bandpass filter, hair/receipts
Antenna, frequency-selecting amplifying unit, local oscillator unit, mixting circuit unit, intermediate level circuit unit, demodulator circuit unit, audio amplification are single
Member and loudspeaker, the microphone, audio amplification unit, modulation circuit unit, high-frequency amplifying unit, transmitting-receiving bandpass filter, frequency-selecting
Amplifying unit, mixting circuit unit, intermediate level circuit unit, demodulator circuit unit, audio amplification unit and loudspeaker are sequentially connected electrically,
The oscillator is electrically connected with modulation circuit unit, and the hair/receipts antenna is electrically connected with transmitting-receiving bandpass filter, the local oscillator list
Member is electrically connected with mixting circuit unit.
6. the quick verifying unit of cable core according to claim 3 or 4, it is characterised in that：The buzzer sounding list
Member includes the tenth resistance, the 21st resistance, the 30th resistance, buzzer and triode, one end of the 30th resistance
It is electrically connected with No. 3 pins of microprocessor, the other end of the 30th resistance is electrically connected with the base stage of triode, the emitter-base bandgap grading of triode
It is electrically connected with reference ground, the collector of triode is electrically connected with one end of the 21st resistance and buzzer, the 21st resistance
The other end be electrically connected with the other end of one end of the tenth resistance, buzzer, the other end and power supply unit of voltage regulation of the tenth resistance
9V batteries anode electrical connection.
7. the quick verifying unit of cable core according to claim 3 or 4, it is characterised in that：The strip light instruction is single
Member includes the first light emitting diode to the tenth light emitting diode, eleventh resistor to the 20th resistance, the microprocessor
11~No. 20 pins are electrically connected with one end of eleventh resistor to the 20th resistance, and eleventh resistor is another to the 20th resistance
End is electrically connected with one end of the first light emitting diode to the tenth light emitting diode respectively, the first light emitting diode to the tenth luminous two
The other end of pole pipe is electrically connected with reference ground.
8. the quick verifying unit of cable core according to claim 3 or 4, it is characterised in that：The microprocessor is
STC15W408 microcontrollers.
9. the quick verifying unit of cable core according to claim 3 or 4, it is characterised in that：The type of the voltage stabilizing chip
Number be 78L05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362999.2A CN108333464A (en) | 2018-04-21 | 2018-04-21 | The quick verifying unit of cable core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362999.2A CN108333464A (en) | 2018-04-21 | 2018-04-21 | The quick verifying unit of cable core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108333464A true CN108333464A (en) | 2018-07-27 |
Family
ID=62933479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810362999.2A Pending CN108333464A (en) | 2018-04-21 | 2018-04-21 | The quick verifying unit of cable core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108333464A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596520A (en) * | 2019-08-30 | 2019-12-20 | 上海西电高压开关有限公司 | Plug-in detector and circuit for detecting cable connecting control cabinet and combined electrical apparatus |
| CN110687482A (en) * | 2019-11-05 | 2020-01-14 | 国网山西省电力公司阳泉供电公司 | Visual secondary circuit comprehensive detector |
| CN111142051A (en) * | 2020-01-06 | 2020-05-12 | 深圳市盛弘电气股份有限公司 | Serial line detection circuit and judgment method thereof |
| CN111645617A (en) * | 2020-05-14 | 2020-09-11 | 摩登汽车(盐城)有限公司 | Wire harness diagnosis system for three electric systems of electric automobile and electric automobile |
| CN113359064A (en) * | 2021-05-17 | 2021-09-07 | 国网山东省电力公司肥城市供电公司 | Cable core identification device and method |
| CN110596520B (en) * | 2019-08-30 | 2024-05-03 | 上海西电高压开关有限公司 | Plug-in detector for detecting cable connecting control cabinet and combined electrical appliance |
-
2018
- 2018-04-21 CN CN201810362999.2A patent/CN108333464A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596520A (en) * | 2019-08-30 | 2019-12-20 | 上海西电高压开关有限公司 | Plug-in detector and circuit for detecting cable connecting control cabinet and combined electrical apparatus |
| CN110596520B (en) * | 2019-08-30 | 2024-05-03 | 上海西电高压开关有限公司 | Plug-in detector for detecting cable connecting control cabinet and combined electrical appliance |
| CN110687482A (en) * | 2019-11-05 | 2020-01-14 | 国网山西省电力公司阳泉供电公司 | Visual secondary circuit comprehensive detector |
| CN111142051A (en) * | 2020-01-06 | 2020-05-12 | 深圳市盛弘电气股份有限公司 | Serial line detection circuit and judgment method thereof |
| CN111645617A (en) * | 2020-05-14 | 2020-09-11 | 摩登汽车(盐城)有限公司 | Wire harness diagnosis system for three electric systems of electric automobile and electric automobile |
| CN111645617B (en) * | 2020-05-14 | 2021-11-23 | 摩登汽车(盐城)有限公司 | Wire harness diagnosis system for three electric systems of electric automobile and electric automobile |
| CN113359064A (en) * | 2021-05-17 | 2021-09-07 | 国网山东省电力公司肥城市供电公司 | Cable core identification device and method |
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