CN106443351A - System and method for detecting faults of multi-core cables of ships - Google Patents
System and method for detecting faults of multi-core cables of ships Download PDFInfo
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- CN106443351A CN106443351A CN201610943667.4A CN201610943667A CN106443351A CN 106443351 A CN106443351 A CN 106443351A CN 201610943667 A CN201610943667 A CN 201610943667A CN 106443351 A CN106443351 A CN 106443351A
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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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
Abstract
The invention discloses a system and a method for detecting faults of multi-core cables of ships. The system comprises a single chip microcomputer control system, a keyboard input module, a display screen module, a time sequence module, a data acquisition module, an insulation detection circuit, a cable fault detection circuit, a cable fault distance measurement circuit, a first relay array, a second relay array and a power module. The single chip microcomputer control system is electrically connected with the power module, the keyboard input module, the display screen module, the time sequence module, the data acquisition module, the insulation detection circuit, the cable fault detection circuit and the cable fault distance measurement circuit, the time sequence module is electrically connected with the first relay array and the second relay array, one end of each of different cores in a to-be-detected cable is connected with the first relay array, and the other end of each of the different cores in the to-be-detected cable is connected with the second relay array. The system and the method have the advantages that the multiple cores in the cable can be detected in real time, and the system and the method are high in detection speed and accuracy.
Description
Technical field
The invention belongs to electrical technology and equipment technical field are and in particular to a kind of fault detect system of ship multicore cable
System and detection method.
Background technology
, as the important carrier of ship signal and energy transmission, application is more and more extensive for ship multicore cable.But, ship
Cable is frequently subjected to burn into humidity and the impact of high and low temperature environment, adds that partial cables, as mobile laying, are often subject to
The external force effect such as extruding bending, so that shipboard cable is unavoidable break down.
Many additionally, due to shipboard cable core number, existing equipment cannot carry out quick fault detect and event to multicore cable
Barrier ranging localization is so that most multicore cable wastes.For shipboard cable, people usually adopt manual testing's cable completely
Method detected that time length and poor accuracy have a strong impact on the normal use of power ship.At present, urgently need right
The fault of ship multicore cable is detected and fault localization positioning, only solves the failure problems of multicore cable, ability
Make the operation that ship is safer, so as to reduce the economic loss causing because of shipboard cable fault.
Content of the invention
The technical problem to be solved is to provide a kind of ship multicore cable for above-mentioned the deficiencies in the prior art
Fault detection system and detection method, the fault detection system of this ship multicore cable and detection method can be in real time to cables
Interior multiple core is detected, detection speed is fast, and accuracy is high.
For realizing above-mentioned technical purpose, the technical scheme that the present invention takes is：
A kind of fault detection system of ship multicore cable, including single-chip computer control system, input through keyboard module, display screen mould
Block, tfi module, data acquisition module, insulation detecting circuit, Cable fault examination circuit, cable fault localization circuit, first
Relay array, the second relay array and power module, described single-chip computer control system is defeated with power module, keyboard respectively
Enter module, display panel module, tfi module, data acquisition module, insulation detecting circuit, Cable fault examination circuit and cable event
Barrier range-measuring circuit electrical connection, described tfi module is electrically connected with the first relay array and the second relay array respectively, described
Data acquisition module is electrically connected with insulation detecting circuit, Cable fault examination circuit and cable fault localization circuit respectively, described
Insulation detecting circuit, Cable fault examination circuit and cable fault localization circuit are connected with the first relay array respectively, described
First relay array is connected with one end of the different cores in tested cable, described second relay array and tested electricity
The other end of the different cores in cable connects.
As further improved technical scheme of the present invention, described insulation detecting circuit includes resistance R1, resistance R2, slip
Rheostat R3, galvanometer, two gear three foot toggle switches, current transducer, voltage transmitter and DC source, described DC source
Positive pole be connected with one end of resistance R1 and one end of resistance R2 respectively, the other end of described resistance R1 is respectively with galvanometric one
One end of end and slide rheostat R3 connects, other end negative pole and two gears with DC source respectively of described slide rheostat R3
The pin 1 of three foot toggle switches connects, and pin 2 core different from tested cable of described two gear three foot toggle switches is lived
It is dynamically connected, the pin 3 of described two gear three foot toggle switches is connected with the second relay array, and the other end of described resistance R2 is respectively
It is connected with the galvanometric other end and the first relay array, described current transducer is connected with slide rheostat R3 and is used for examining
Flow measurement crosses the electric current of slide rheostat R3, and described voltage transmitter is in parallel with slide rheostat R3 and is used for detecting slide rheostat
The voltage of R3, described voltage transmitter and current transducer are connected with data acquisition module respectively, the positive pole of described DC source
It is connected with single-chip computer control system.
As further improved technical scheme of the present invention, the number of the relay including in described first relay array
The quantity all same of the core in the quantity and cable of relay including in amount, the second relay array, described resistance R2's
The other end is connected with each relay in the first relay array respectively, and the pin 3 of described two gear three foot toggle switches is respectively
It is connected with each relay in the second relay array.
As further improved technical scheme of the present invention, described Cable fault examination circuit includes action of low-voltage pulse generator
And oscillograph, described action of low-voltage pulse generator is connected with each relay in the first relay array, described oscillograph and
Each relay in one relay array connects, and described oscillograph is connected with data acquisition module, and described action of low-voltage pulse occurs
Device is connected with single-chip computer control system.
As further improved technical scheme of the present invention, described cable fault localization circuit mainly includes pressure regulator, high
Pressure testing transformer, storage capacitor and linear current bonder, described pressure regulator is connected with HT testing transformer, described high pressure
Testing transformer is connected with storage capacitor, and described storage capacitor is connected with each relay in the first relay array, described
Linear current bonder is located between the first relay array and the second relay array, described linear current bonder and data
Acquisition module connects, and described pressure regulator is connected with single-chip computer control system.
As further improved technical scheme of the present invention, described data acquisition module includes sampling controller, A/D conversion
Device data buffer, described sampling controller is connected with AD converter, and described AD converter is connected with data buffer, described
Data buffer is connected with single-chip computer control system.
Another technical scheme that the present invention takes is：
A kind of detection method of the fault detection system of ship multicore cable, comprises the following steps：
（1）By input through keyboard module, the quantity of the core of cable is sent in single-chip computer control system；
（2）Single-chip computer control system is controlled to tfi module, and tfi module continues to the first relay array and second successively
The switch of the relay in electrical equipment array is controlled；
（3）Single-chip computer control system is controlled to insulation detecting circuit, and the data that itself is detected by insulation detecting circuit is passed through
Data acquisition module is sent to single-chip computer control system, and single-chip computer control system is analyzed and calculated two lines in tested cable
The ground insulation resistance value of core being shown by display panel module in insulating resistance value between core and tested cable
Come；
（4）Single-chip computer control system sends control command, low-tension pulse to the action of low-voltage pulse generator in Cable fault examination circuit
Rush generator and inject low pressure emission pulse in the core in tested cable, oscillograph gathers low in action of low-voltage pulse generator
Pressure is penetrated pulse and the reflection configuration in core and is sent to single-chip computer control system, single-chip microcomputer by data acquisition module
Control system judges the nature of trouble of cable, and when low pressure emission pulse and reflected impulse same polarity, the nature of trouble of cable is
Disconnection fault, on the contrary it is short trouble, and single-chip computer control system sends the nature of trouble of cable to display panel module, display screen
Module shows the nature of trouble of cable；
（5）Work as step（4）When the nature of trouble of middle cable is short trouble, single-chip computer control system controls cable fault localization electricity
Pressure regulator in road, pressure regulator is constantly risen high voltage and by HT testing transformer, storage capacitor is charged, energy storage electricity
Hold to the core input voltage in cable, the trouble point disruptive discharge in the core in cable simultaneously produces current traveling wave, linearly electricity
Stream bonder collection current waveform is simultaneously sent to single-chip computer control system by data acquisition unit, and single-chip computer control system is to electric current
Waveform carries out extraction and analysis so that it is determined that the fault distance of core being shown by display panel module in cable.
The beneficial effect that the present invention is reached：The present invention can real-time online to the insulation resistance of the multiple core of cable successively
Detected, a plurality of core can be carried out with the judgement of nature of trouble simultaneously, it can in addition contain carry out to the fault distance of cable
Range finding.Thus can promptly and accurately trouble point be judged, thus reducing the economy that ship multicore cable hinders for some reason and leads to
Loss, has very big economic use value, and detection speed of the present invention is fast, and accuracy is high.
Brief description
Fig. 1 the structural representation of present invention.
Fig. 2 is the circuit theory schematic diagram of the insulation detecting circuit of the present invention.
Fig. 3 is the circuit theory schematic diagram of the cable fault localization circuit of the present invention.
Fig. 4 is the circuit theory schematic diagram of data acquisition module.
Fig. 5 is workflow diagram of the present invention.
Specific embodiment
Below according to Fig. 1 to Fig. 5, the specific embodiment of the present invention is further illustrated：
As shown in figure 1, a kind of fault detection system of ship multicore cable, including single-chip computer control system, input through keyboard mould
Block, display panel module, tfi module, data acquisition module, insulation detecting circuit, Cable fault examination circuit, cable fault are surveyed
Away from circuit, the first relay array 1, the second relay array 2 and power module, described single-chip computer control system respectively with electricity
Source module, input through keyboard module, display panel module, tfi module, data acquisition module, insulation detecting circuit, cable fault inspection
Slowdown monitoring circuit and cable fault localization circuit electrical connection, described tfi module respectively with the first relay array 1 and the second relay
Array 2 electrically connects, described data acquisition module respectively with insulation detecting circuit, Cable fault examination circuit and cable fault localization
Circuit electrically connect, described insulation detecting circuit, Cable fault examination circuit and cable fault localization circuit respectively with the first relay
Device array 1 connects, and described first relay array 1 is connected with one end of the different cores 3 in tested cable, and described second continues
Electrical equipment array 2 is connected from the other end of the different cores 3 in tested cable.
In the present embodiment, as shown in Fig. 2 described insulation detecting circuit include resistance R1, resistance R2, slide rheostat R3,
Galvanometer G, two gear three foot toggle switch K, current transducer, voltage transmitter and DC source E, described DC source E is just
Pole is connected with one end of resistance R1 and one end of resistance R2 respectively, other end one end with galvanometer G respectively of described resistance R1
Connect with one end of slide rheostat R3, other end negative pole and two gears with DC source E respectively of described slide rheostat R3
The pin 1 of three foot toggle switch K connects, and the pin 2 of described two gear three foot toggle switch K is manual and different in tested cable
Core 3 is flexibly connected, and the pin 3 of described two gear three foot toggle switch K is connected with the second relay array 2, described resistance R2's
The other end is connected with the other end of galvanometer G and the first relay array 1 respectively, described current transducer and slide rheostat R3
Connect and flow through for detection the electric current of slide rheostat R3, described voltage transmitter is in parallel with slide rheostat R3 and is used for examining
Survey the voltage of slide rheostat R3, described voltage transmitter and current transducer are connected with data acquisition module respectively, described straight
The positive pole of stream power supply E is connected with single-chip computer control system.
In the present embodiment, as shown in Fig. 2 the quantity of relay including in described first relay array 1, the second relay
The quantity all same of the core 3 in the quantity and cable of relay including in device array 2, the other end of described resistance R2 is respectively
Be connected with each relay in the first relay array 1, described two gear three foot toggle switches pin 3 respectively with the second relay
Each relay in device array 2 connects.
In the present embodiment, described Cable fault examination circuit includes action of low-voltage pulse generator and oscillograph, described low-tension pulse
Rush generator to be connected with each relay in the first relay array 1, every in described oscillograph and the first relay array 1
Individual relay connects, and described oscillograph is connected with data acquisition module, described action of low-voltage pulse generator and single-chip computer control system
Connect.
In the present embodiment, as shown in figure 3, described cable fault localization circuit mainly includes pressure regulator, high-potting transformation
Device, storage capacitor and linear current bonder, described pressure regulator is connected with HT testing transformer, described HT testing transformer
It is connected with storage capacitor, described storage capacitor is connected with each relay in the first relay array 1, described linear current coupling
Clutch is located between the first relay array 1 and the second relay array 2 and produces for gathering the trouble point in tested core 3
Raw current traveling wave, described linear current bonder is connected with data acquisition module, described pressure regulator and single-chip computer control system
Connect.
In the present embodiment, as shown in figure 4, described data acquisition module includes sampling controller, A/D converter data is delayed
Rush device, described sampling controller is connected with AD converter, described AD converter is connected with data buffer, described data buffer
It is connected with single-chip computer control system.
Power module is single-chip computer control system, input through keyboard module, display panel module, tfi module, data acquisition module
Block, insulation detecting circuit, Cable fault examination circuit, cable fault localization circuit, the first relay array 1, the second relay
Array 2 provides electric energy, comprises control program and numbered the core 3 in cable, keyboard in single-chip computer control system
Input module transmits a signal to single-chip computer control system, single-chip computer control system control sequential module and insulation detecting circuit, when
The adhesive of sequence module control the first relay array 1 and the second relay array 2 and disconnection, insulation detecting circuit detection signal is simultaneously
Single-chip computer control system is transmitted a signal to by data acquisition module, single-chip computer control system is analyzed and calculated different two
Insulating resistance value between core 3 and the grounding resistance of each core 3, and show on display panel module, when
After single-chip computer control system judges that each core 3 in cable is all measured, single-chip computer control system stops control sequential mould
Block and insulation detecting circuit；Input through keyboard module transmits a signal to single-chip computer control system again, and single-chip computer control system controls
Tfi module and Cable fault examination circuit, tfi module controls the adhesive of the first relay array 1 and the second relay array 2
With disconnection, each core 3 of Cable fault examination electric circuit inspection is with the presence or absence of fault and by data acquisition module sending signal
To single-chip computer control system, single-chip computer control system is short circuit according to the failure problems of the tested core 3 of the signal analysis receiving
Fault or open circuit fault, single-chip computer control system can also analyze the disconnection fault of the core 3 in cable according to the signal receiving
Distance, after the completion of Cable fault examination circuit is for every core 3 detection, it is short that single-chip computer control system records core 3 automatically
The numbering and being shown by display panel module of road fault, single-chip computer control system now stops control sequential module and cable
Failure detector circuit；Input through keyboard module sends the signal of the numbering that core 3 is short trouble to single-chip computer control system, monolithic
Machine control system control sequential module, tfi module controls the adhesive of the first relay array 1 and the second relay array 2 and breaks
Open, so that the first relay array 1 and the second relay array 2 are turned on same and for short trouble core 3 simultaneously,
Single-chip computer control system controls cable fault localization circuit, and cable fault localization circuit is worked and sent by data acquisition module
To single-chip computer control system, single-chip computer control system analyzes in cable the fault distance of core 3 and by display panel module to signal
Show.
As shown in figure 5, the present invention is according to the fault detection system of above-mentioned ship multicore cable, there is provided many based on ship
The detection method of the fault detection system of core cable, comprises the following steps：
（1）By input through keyboard module, the quantity of the core 3 of cable is sent in single-chip computer control system.
（2）After single-chip computer control system receives the signal that keyboard input module sends, tfi module is according to Single-chip Controlling
The control instruction of system is controlled to the switch of the relay in the first relay array 1 and the second relay array 2 successively.
（3）Single-chip computer control system is also controlled to insulation detecting circuit while tfi module is controlled,
The data that itself is detected by insulation detecting circuit is sent to single-chip computer control system, Single-chip Controlling system by data acquisition module
Insulating resistance value and the ground connection of tested single core 3 that system is analyzed and calculated between tested two lines core 3 in cable
Insulating resistance value is simultaneously shown by display panel module；
Specifically, single-chip computer control system is controlled to insulation detecting circuit, and the DC source E in insulation detecting circuit starts
Work, tfi module controls in relay adhesive and disconnection and the second relay array 2 in the first relay array 1 successively
Relay adhesive and disconnection, thus ensureing can be formed with insulation detecting circuit a loop between each two core 3, first
Each relay in relay array 1 has also been connected between being connected with the core 3 in tested cable light emitting diode, sequential mould
When block controls some the relay adhesive in the first relay array 1, the light emitting diode connected with relay will light,
Now may determine which the relay adhesive in the first relay array 1 that tfi module controls or disconnection, resistance R2
By the relay adhesive in the first relay array 1 and disconnection thus sequentially turn on from the different cores 3 in tested cable and
Disconnect；Manually will the pins 1 of two gear three foot toggle switch K and pin 2-in-1 on, manually further according to luminous two connecting with relay
The light on and off of pole pipe so that it is determined that resistance R2 is turned on which core 3, more manually by the pins 2 of two gear three foot toggle switch K with
Another core 3 connects so that defining a loop, every time in two different cores 3 between different both threads core 3
Between formed loop when, manual slip slide rheostat R3 so that the pointer in galvanometer G is maintained at centre position, this
When circuit reach bridge balance, current transducer collection is flow through the electric current of slide rheostat R3 and is crossed data acquisition module and send out in real time
The number of delivering letters arrives single-chip computer control system, and voltage transmitter gathers the voltage at slide rheostat R3 two ends and crosses data acquisition module in fact
When transmit a signal to single-chip computer control system, single-chip computer control system is by flowing through electric current and the slip variable resistance of slide rheostat R3
The voltage at device R3 two ends calculates the resistance of slide rheostat R3, then by the computational methods of bridge balance, calculates tested
Insulating resistance value between two cores 3, be can be observed how by observation display panel module and is maintained at when the pointer in galvanometer G
Insulating resistance value shown by display panel module when centre position；According to above-mentioned method measurement all of difference core 3
Between insulating resistance value, after the insulating resistance value between each two core 3 in cable is measured；Manually two are kept off three
The pin 1 of foot toggle switch K is merged with the pin 3 of two gear three foot toggle switch K, and tfi module controls the first relay battle array successively
Relay adhesive in relay adhesive in row 1 and disconnection and the second relay array 2 and disconnection, so that resistance R2
While one end is turned on by one end of the first relay matrix and a core 3, the pin 3 of two gear three foot toggle switch K
By the other end conducting of the second relay matrix and this core 3, now, manual slip slide rheostat R3 so that galvanometer
Pointer in G is maintained at centre position, reaches bridge balance, and current transducer and voltage transmitter are sent out by data acquisition module
The number of delivering letters arrives single-chip computer control system, the electricity flowing through slide rheostat R3 that single-chip computer control system is gathered by current transducer
The voltage at the slide rheostat R3 two ends of stream and voltage transmitter collection calculates the resistance of slide rheostat R3, then passes through electric bridge
The computational methods of balance, calculate the ground insulation resistance value of tested core 3, be can be observed how by observing display panel module
The ground insulation resistance value shown by display panel module when the pointer in galvanometer G is maintained at centre position.
（4）After insulation detecting circuit is measured, single-chip computer control system is automatically stopped control, manually by the second relay
Each relay in device array 2 is all connected with ground wire so that the core 3 in cable is connected with ground wire, defeated again by keyboard
Enter module the quantity information of the core 3 of cable is again sent in single-chip computer control system；Single-chip computer control system is to cable
Action of low-voltage pulse generator in failure detector circuit sends control command, and tfi module is according to the control of single-chip computer control system simultaneously
System instruction controls the relay in relay adhesive and disconnection and the second relay array 2 in the first relay array 1 successively
Device adhesive and disconnection it is ensured that relay in relay and the second relay array 2 in the first relay array 1 simultaneously with
One core 3 turns on, and action of low-voltage pulse generator injects low pressure emission pulse in the core 3 in tested cable, and oscillograph is adopted
Collect the low pressure emission pulse in action of low-voltage pulse generator and the reflection configuration in core 3 and sent by data acquisition module
To single-chip computer control system, single-chip computer control system judges the nature of trouble of cable, when low pressure emission pulse is same with reflected impulse
Polarity chron, the nature of trouble of cable is disconnection fault, otherwise is short trouble, and single-chip computer control system sends the fault of cable
Property is to display panel module, the nature of trouble of display panel module display cable；Meanwhile, when the nature of trouble of cable is disconnection fault
When, the voltage model that single-chip computer control system obtains with reference to oscillograph, just can obtain the disconnection fault of core 3 in cable away from
From.If short trouble, then fault localization circuit is taken to be further processed；If there are not failure problems in core 3, just
Do not have reflected impulse.
（5）After the completion of Cable fault examination electric circuit inspection, single-chip computer control system is automatically stopped control, works as step（4）'s
When the nature of trouble of core 3 is short trouble, the numbering that be there will be the core 3 of short trouble by input through keyboard module is sent to
In single-chip computer control system, tfi module is according to the control instruction of single-chip computer control system by continuing in the first relay array 1
Relay in electrical equipment and the second relay array 2 is turned on there is short trouble and same core 3 simultaneously, single-chip microcomputer control
System processed controls the pressure regulator in cable fault localization circuit, and pressure regulator constantly rises high voltage and passes through HT testing transformer pair
Storage capacitor is charged, and storage capacitor punctures to core 3 input voltage in cable, the trouble point in core 3 in cable
Discharge and produce current traveling wave, linear current bonder collection current waveform is simultaneously sent to Single-chip Controlling by data acquisition unit
System, single-chip computer control system carries out extraction and analysis to current waveform so that it is determined that the fault distance of core 3 passing through in cable
Display panel module shows, tfi module further according to single-chip computer control system control instruction by the first relay array 1
Relay turn on the core 3 of other presence fault with the relay in the second relay array 2, according to above-mentioned simultaneously
Method measures the core 3 that there is short trouble successively, until measurement terminates.
Sampling controller in described data acquisition module is acquired data, by number after A/D converter conversion
According to being stored in data buffer, integration process is carried out to data by single-chip computer control system, obtain Cable fault examination feelings
Condition.Single-chip computer control system in the present embodiment uses 8098 control systems.Straight in insulation detecting circuit in the present embodiment
Stream power supply E can be rechargeable battery.
The present invention passes through automatically and manually combination and the core 3 in cable is detected, with testing result is accurate, and permissible
Connected thus flexibly using according to manual, the time of detection is less with respect to all time using manual detection, by this
Invent the fault achieving to ship multicore cable to be detected and fault localization positioning, thus effectively reminding staff
The trouble point of cable, makes staff with on-call maintenance, can finally solve the failure problems of cable so that ship is safer
Operation, so as to reduce the economic loss causing because of shipboard cable fault.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement that those skilled in the art that this technology is made is readily apparent that, deformation, improvement each fall within the present invention's
Protection domain.
Claims (7)
1. a kind of fault detection system of ship multicore cable it is characterised in that：Including single-chip computer control system, input through keyboard mould
Block, display panel module, tfi module, data acquisition module, insulation detecting circuit, Cable fault examination circuit, cable fault are surveyed
Away from circuit, the first relay array, the second relay array and power module, described single-chip computer control system respectively with power supply
Module, input through keyboard module, display panel module, tfi module, data acquisition module, insulation detecting circuit, Cable fault examination
Circuit and cable fault localization circuit electrical connection, described tfi module respectively with the first relay array and the second relay array
Electrical connection, described data acquisition module respectively with insulation detecting circuit, Cable fault examination circuit and cable fault localization circuit
Electrical connection, described insulation detecting circuit, Cable fault examination circuit and cable fault localization circuit respectively with the first relay battle array
Row connect, and described first relay array is connected with one end of the different cores in tested cable, described second relay battle array
Row are connected from the other end of the different cores in tested cable.
2. ship multicore cable according to claim 1 fault detection system it is characterised in that：Described Insulation monitoring electricity
Road includes resistance R1, resistance R2, slide rheostat R3, galvanometer, two gear three foot toggle switches, current transducer, voltage transmission
Device and DC source, the positive pole of described DC source is connected with one end of resistance R1 and one end of resistance R2 respectively, described resistance
The other end of R1 is connected with one end of galvanometric one end and slide rheostat R3 respectively, the other end of described slide rheostat R3
It is connected with the negative pole of DC source and the pin 1 of two gear three foot toggle switches respectively, the pin 2 of described two gear three foot toggle switches
Cores different from tested cable are flexibly connected, and described two keep off pin 3 and second relay array of three foot toggle switches
Connect, the other end of described resistance R2 is connected with the galvanometric other end and the first relay array respectively, described electric current pick-up
Device is connected with slide rheostat R3 and is flow through the electric current of slide rheostat R3, described voltage transmitter and slip variable resistance for detection
Device R3 in parallel and for detect the voltage of slide rheostat R3, described voltage transmitter and current transducer respectively with data acquisition
Module connects, and the positive pole of described DC source is connected with single-chip computer control system.
3. ship multicore cable according to claim 2 fault detection system it is characterised in that：Described first relay
The number of the core in the quantity and cable of relay including in the interior quantity of relay including of array, the second relay array
Amount all same, the other end of described resistance R2 is connected with each relay in the first relay array respectively, described two gears three
The pin 3 of foot toggle switch is connected with each relay in the second relay array respectively.
4. ship multicore cable according to claim 3 fault detection system it is characterised in that：Described cable fault inspection
Slowdown monitoring circuit includes action of low-voltage pulse generator and oscillograph, and each in described action of low-voltage pulse generator and the first relay array continues
Electrical equipment connects, and described oscillograph is connected with each relay in the first relay array, described oscillograph and data acquisition module
Block connects, and described action of low-voltage pulse generator is connected with single-chip computer control system.
5. ship multicore cable according to claim 4 fault detection system it is characterised in that：Described cable fault is surveyed
Mainly include pressure regulator, HT testing transformer, storage capacitor and linear current bonder, described pressure regulator and high pressure away from circuit
Testing transformer connects, and described HT testing transformer is connected with storage capacitor, described storage capacitor and the first relay array
Each interior relay connects, and described linear current bonder is located between the first relay array and the second relay array,
Described linear current bonder is connected with data acquisition module, and described pressure regulator is connected with single-chip computer control system.
6. ship multicore cable according to claim 1 fault detection system it is characterised in that：Described data acquisition module
Block includes sampling controller, A/D converter data buffer, and described sampling controller is connected with AD converter, and described AD turns
Parallel operation is connected with data buffer, and described data buffer is connected with single-chip computer control system.
7. a kind of detection method of the fault detection system of ship multicore cable as claimed in claim 5 it is characterised in that：Bag
Include following steps：
（1）By input through keyboard module, the quantity of the core of cable is sent in single-chip computer control system；
（2）Single-chip computer control system is controlled to tfi module, and tfi module continues to the first relay array and second successively
The switch of the relay in electrical equipment array is controlled；
（3）Single-chip computer control system is controlled to insulation detecting circuit, and the data that itself is detected by insulation detecting circuit is passed through
Data acquisition module is sent to single-chip computer control system, and single-chip computer control system is analyzed and calculated two lines in tested cable
The ground insulation resistance value of core being shown by display panel module in insulating resistance value between core and tested cable
Come；
（4）Single-chip computer control system sends control command, low-tension pulse to the action of low-voltage pulse generator in Cable fault examination circuit
Rush generator and inject low pressure emission pulse in the core in tested cable, oscillograph gathers low in action of low-voltage pulse generator
Pressure is penetrated pulse and the reflection configuration in core and is sent to single-chip computer control system, single-chip microcomputer by data acquisition module
Control system judges the nature of trouble of cable, and when low pressure emission pulse and reflected impulse same polarity, the nature of trouble of cable is
Disconnection fault, on the contrary it is short trouble, and single-chip computer control system sends the nature of trouble of cable to display panel module, display screen
Module shows the nature of trouble of cable；
（5）Work as step（4）When the nature of trouble of middle cable is short trouble, single-chip computer control system controls cable fault localization electricity
Pressure regulator in road, pressure regulator is constantly risen high voltage and by HT testing transformer, storage capacitor is charged, energy storage electricity
Hold to the core input voltage in cable, the trouble point disruptive discharge in the core in cable simultaneously produces current traveling wave, linearly electricity
Stream bonder collection current waveform is simultaneously sent to single-chip computer control system by data acquisition unit, and single-chip computer control system is to electric current
Waveform carries out extraction and analysis so that it is determined that the fault distance of core being shown by display panel module in cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107356851A (en) * | 2017-07-12 | 2017-11-17 | 北京电子工程总体研究所 | A kind of electric cable insulation tester and the method tested using the device |
| CN107505545A (en) * | 2017-08-14 | 2017-12-22 | 绵阳市维博电子有限责任公司 | A kind of railway signal cable Insulation Live Testing method and system |
| CN107894557A (en) * | 2017-12-05 | 2018-04-10 | 中国船舶重工集团公司第七0五研究所 | A kind of equipment cable insulating properties quick determination method |
| CN108761205A (en) * | 2018-05-21 | 2018-11-06 | 中国电建集团河南工程有限公司 | Cable through and the test method and tester of insulation |
| CN109343411A (en) * | 2018-10-31 | 2019-02-15 | 广东电网有限责任公司 | On-load voltage regulation mechanism controls circuit monitoring system |
| CN110018383A (en) * | 2018-01-09 | 2019-07-16 | 日立金属株式会社 | Inspection method and device, the manufacturing method of multi-coaxial cable assembly of multicore cable |
| CN112350350A (en) * | 2020-10-26 | 2021-02-09 | 清华四川能源互联网研究院 | Operation control method and device for battery energy storage and hydrogen production equipment and electronic equipment |
| CN114019419A (en) * | 2021-10-29 | 2022-02-08 | 广西电网有限责任公司崇左供电局 | Insulation detection array type automatic combination device |
| CN115184718A (en) * | 2022-04-20 | 2022-10-14 | 中国矿业大学 | Time domain analysis-based three-core cable fault positioning method |
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| CN107356851A (en) * | 2017-07-12 | 2017-11-17 | 北京电子工程总体研究所 | A kind of electric cable insulation tester and the method tested using the device |
| CN107505545A (en) * | 2017-08-14 | 2017-12-22 | 绵阳市维博电子有限责任公司 | A kind of railway signal cable Insulation Live Testing method and system |
| CN107894557A (en) * | 2017-12-05 | 2018-04-10 | 中国船舶重工集团公司第七0五研究所 | A kind of equipment cable insulating properties quick determination method |
| CN110018383A (en) * | 2018-01-09 | 2019-07-16 | 日立金属株式会社 | Inspection method and device, the manufacturing method of multi-coaxial cable assembly of multicore cable |
| CN108761205A (en) * | 2018-05-21 | 2018-11-06 | 中国电建集团河南工程有限公司 | Cable through and the test method and tester of insulation |
| CN109343411A (en) * | 2018-10-31 | 2019-02-15 | 广东电网有限责任公司 | On-load voltage regulation mechanism controls circuit monitoring system |
| CN112350350A (en) * | 2020-10-26 | 2021-02-09 | 清华四川能源互联网研究院 | Operation control method and device for battery energy storage and hydrogen production equipment and electronic equipment |
| CN112350350B (en) * | 2020-10-26 | 2022-02-08 | 清华四川能源互联网研究院 | Operation control method and device for battery energy storage and hydrogen production equipment and electronic equipment |
| CN114019419A (en) * | 2021-10-29 | 2022-02-08 | 广西电网有限责任公司崇左供电局 | Insulation detection array type automatic combination device |
| CN115184718A (en) * | 2022-04-20 | 2022-10-14 | 中国矿业大学 | Time domain analysis-based three-core cable fault positioning method |
| CN115184718B (en) * | 2022-04-20 | 2023-11-14 | 中国矿业大学 | Three-core cable fault positioning method based on time domain analysis |
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