CN203444066U - Fault indication apparatus of overhead line - Google Patents
Fault indication apparatus of overhead line Download PDFInfo
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- CN203444066U CN203444066U CN201320582323.7U CN201320582323U CN203444066U CN 203444066 U CN203444066 U CN 203444066U CN 201320582323 U CN201320582323 U CN 201320582323U CN 203444066 U CN203444066 U CN 203444066U
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- overhead transmission
- transmission line
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
Disclosed in the utility model is a fault indication apparatus of an overhead line. The fault indication apparatus comprises a fault indicator and a processor. The fault indicator includes a first fault indicator and a second fault indicator, wherein the first fault indicator and the second fault indicator are arranged at the same phase line of the overhead line; and the first fault indicator and the second fault indicator are respectively used for detecting and sending fault information of located positions. In addition, the fault indicator also includes: a sensor, which is arranged inside the fault indicator and is used for detecting fault information; and a communication unit, which is connected with the sensor and is used for sending the fault information detected by the sensor. With the fault indication apparatus, a fault zone of single-phase grounding can be localized.
Description
Technical field
The utility model relates to electric power transfer field, in particular to a kind of overhead transmission line accident indicator.
Background technology
Electric power transfer is safely the important embodiment of electric power transfer quality, and the phase fault of the power transmission lines such as overhead transmission line and singlephase earth fault have caused safely immense pressure to electric power transfer, therefore,, when fault occurs, electric power first-aid personnel's timely repairing seems particularly important.The geographic range relating to due to power supply overhead transmission line is very wide, and therefore, when fault occurs, it is the important guarantee that shortens the repairing time that electric power first-aid personnel can locate the position of fault fast.
In order to locate fast the position of fault, a kind of scheme is provided in the prior art, in this scheme, along overhead transmission line, overhead transmission line accident indicator is installed.When overhead transmission line generation phase fault, overhead transmission line accident indicator can be fast and is oriented exactly the fault section that phase fault occurs, but when overhead transmission line generation singlephase earth fault, this overhead transmission line accident indicator but can not be oriented the fault section that single-phase earthing occurs effectively.
For not locating the problem of the fault section of single-phase earthing in correlation technique, effective solution is not yet proposed at present.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of overhead transmission line accident indicator, to solve the problem that can not locate the fault section of single-phase earthing in correlation technique.
To achieve these goals, according to one side of the present utility model, provide a kind of overhead transmission line accident indicator.This overhead transmission line accident indicator comprises: fault detector, fault detector comprises Fisrt fault indicator and the second fault detector, Fisrt fault indicator and the second fault detector are arranged in the same phase line of overhead transmission line, and Fisrt fault indicator and the second fault detector are respectively used to detect and send the failure message of present position; Processor, the failure message sending for receiving Fisrt fault indicator and the second fault detector, and the failure message sending according to Fisrt fault indicator and the second fault detector is determined the fault section of phase line, fault detector comprises: sensor, sensor setting is inner at fault detector, for detection of failure message, sensor is current sensor, and current sensor comprises for detection of the first current sensor of phase fault with for detection of the second current sensor of singlephase earth fault; Communication unit, communication unit is connected with sensor, the failure message detecting for sending sensor.
Further, fault detector comprises: first group of fault detector, is separately positioned on the first-phase circuit of overhead transmission line; Second group of fault detector, is separately positioned on the second-phase circuit of overhead transmission line; The 3rd group of fault detector, is separately positioned on the third phase circuit of overhead transmission line.
Further, fault detector comprises: the 4th group of fault detector, is separately positioned on the primary importance of the three-phase phase line of overhead transmission line; The 5th group of fault detector, is separately positioned on the second place of the three-phase phase line of overhead transmission line.
Further, the 4th group of fault detector is separately positioned on the primary importance of three-phase phase line of the backbone of overhead transmission line, the 5th group of fault detector is separately positioned on the second place of three-phase phase line of the backbone of overhead transmission line, wherein, primary importance and second place interval predeterminable range on the bearing of trend of the backbone of overhead transmission line.
Further, overhead transmission line comprises backbone and by backbone, is connected the first branch line of, the 4th group of fault detector is separately positioned on the primary importance of three-phase phase line of the first branch line of overhead transmission line, the 5th group of fault detector is separately positioned on the second place of three-phase phase line of the first branch line of overhead transmission line, wherein, second place interval predeterminable range on the bearing of trend of the first branch line of the primary importance of the three-phase phase line of the first branch line and the three-phase phase line of the first branch line.
Further, overhead transmission line comprises backbone and by backbone, is connected the first branch line and the second branch line that, the 4th group of fault detector is separately positioned on the primary importance of three-phase phase line of the first branch line of overhead transmission line, and the 5th group of fault detector is separately positioned on the primary importance of three-phase phase line of the second branch line of overhead transmission line.
Further, overhead transmission line comprises backbone and by backbone, is connected the branch line that, the 4th group of fault detector, be separately positioned on the primary importance of three-phase phase line of the backbone of overhead transmission line, the 5th group of fault detector, is separately positioned on the primary importance of three-phase phase line of the branch line of overhead transmission line.
Further, overhead transmission line accident indicator also comprises: the first isolating switch, is arranged on the first-phase circuit of backbone of overhead transmission line; The second isolating switch, is arranged on the second-phase circuit of backbone of overhead transmission line; The 3rd isolating switch, is arranged on the third phase circuit of backbone of overhead transmission line; The 4th isolating switch, is arranged on the first-phase circuit of the first branch line of overhead transmission line; The 5th isolating switch, is arranged on the second-phase circuit of the first branch line of overhead transmission line; The 6th isolating switch, is arranged on the third phase circuit of the first branch line of overhead transmission line.
Further, fault detector also comprises: indicating fault mechanism, be connected with communication unit, be used to indicate failure message, indicating fault mechanism is annunciator and signal lamp, annunciator is to be used to indicate the normal first signal board of overhead transmission line and for the secondary signal board of indication fault information by day, signal lamp is for the signal lamp in indication fault information at night.
Further, fault detector also comprises: electric capacity or battery, be arranged in the power circuit of fault detector, and be used to signal lamp that power supply is provided; Electricity-fetching module, is arranged in power circuit, for obtain energy from the external world, thinks that fault detector provides power supply.
Further, communication unit is wireless communication unit, and wireless communication unit comprises: sending module, the failure message detecting for sending current sensor; Receiver module, the control command sending for receiving processor.
Further, fault detector also comprises: digital signal acquiring unit, digital signal acquiring unit is arranged between sensor and communication unit, for the failure message that sensor is detected, samples.
Further, fault detector also comprises: clock synchronous unit, and for the clock synchronous of a plurality of fault detectors.
Pass through the utility model, adopt fault detector, fault detector comprises Fisrt fault indicator and the second fault detector, Fisrt fault indicator and the second fault detector are arranged in the same phase line of overhead transmission line, and Fisrt fault indicator and the second fault detector are respectively used to detect and send the failure message of present position; Processor, the failure message sending for receiving Fisrt fault indicator and the second fault detector, and the failure message sending according to Fisrt fault indicator and the second fault detector is determined the fault section of phase line, solved and can not locate the problem of the fault section of single-phase earthing in correlation technique, and then reached the effect that shortens the breakdown repair time.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the structural drawing of the overhead transmission line accident indicator of the utility model embodiment;
Fig. 2 is according to the structural drawing of the fault detector of the utility model embodiment; And
Fig. 3 is arranged on the schematic diagram in overhead transmission line according to the preferably accident indicator of the utility model embodiment.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
According to embodiment of the present utility model, a kind of overhead transmission line accident indicator is provided, this accident indicator is for locating the fault section of single-phase earthing.
It should be noted that, the detection principle of overhead transmission line phase fault is: when there is phase fault, moment sudden change can occur the transmission current on the overhead transmission line before the position of fault and after Bulk Supply Substation, and current break is obvious; And moment sudden change also can occur for transmission current on overhead transmission line after the position of fault, but current break is not obvious, negligible.The detection principle of overhead transmission line singlephase earth fault is: when there is singlephase earth fault, moment sudden change can occur the transmission current on the overhead transmission line before the position of fault and after Bulk Supply Substation, and current break is obvious; And moment sudden change also can occur for transmission current on overhead transmission line after the position of fault, but current break is not obvious, negligible.
Fig. 1 is according to the structural drawing of the overhead transmission line accident indicator of the utility model embodiment.
As shown in Figure 1, this device comprises: fault detector and processor.
Fault detector can comprise Fisrt fault indicator and the second fault detector.Fisrt fault indicator and the second fault detector can be arranged in the same phase line of overhead transmission line.Fisrt fault indicator and the second fault detector position in the same phase line of overhead transmission line can be different, and the distance of any length can be set between the two.Fisrt fault indicator and the second fault detector can be respectively used to detect and send the failure message of its present position.Failure message can comprise the positional information of current information and the fault detector of overhead transmission line.If the shaft tower of overhead transmission line is carried out to label in advance, or Fisrt fault indicator and the second fault detector are carried out to label in advance, and the positional information of fault detector can also comprise the number of shaft tower or the information such as label of fault detector itself at fault detector place so.Fault detector can be sent to processor by the failure message detecting.
For example, Fisrt fault indicator and the second fault detector can be arranged on A phase (or B phase or the C phase) circuit of overhead transmission line simultaneously.Further, Fisrt fault indicator can be arranged on the first shaft tower of A phase circuit, and the second fault detector can be arranged on the second shaft tower of A phase circuit.And the lable number of the first shaft tower and the second shaft tower is respectively No. 1 and No. 2.Suppose that Fisrt fault indicator is I11 at the first electric current that the first shaft tower place of A phase circuit detected constantly, Fisrt fault indicator is I12 at the second electric current that the first shaft tower place of A phase circuit detected constantly.Fisrt fault indicator is after electric current I 11 and electric current I 12 being detected, electric current I 11 and electric current I 12 can be sent to processor, and fault detector also can be sent to processor by the failure messages such as label in advance of the shaft tower number at Fisrt fault indicator and the second fault detector place or Fisrt fault indicator and the second fault detector.
The failure message that processor can send for receiving Fisrt fault indicator and the second fault detector, and processor can be according to the failure message location fault section of Fisrt fault indicator and the transmission of the second fault detector.Processor can be the processor of the central station of intelligent distribution network.Processor can comprise detection analysis software.Processor can judge by detecting analysis software the fault section whether current information that Fisrt fault indicator and the second fault detector detect the duration of current break, current break and the phase line at place, trouble spot occur.
Like this, realize the object of the fault section of location single-phase earthing, thereby reached the effect that shortens the breakdown repair time.
For example, the first shaft tower number at Fisrt fault indicator place is 1, Fisrt fault indicator is I11 at the first electric current that A phase circuit the first shaft tower place detected constantly, Fisrt fault indicator is I12 at the second electric current that A phase circuit the first shaft tower place detected constantly, Fisrt fault indicator, after electric current I 11 and electric current I 12 being detected, can be sent to processor by electric current I 11 and electric current I 12 and the first shaft tower number 1; In like manner, the second shaft tower number at the second fault detector place is 2, the second fault detector is I21 at the first electric current that the second shaft tower place of A phase circuit detected constantly, the second fault detector is I22 at the second electric current that the second shaft tower place of A phase circuit detected constantly, the second fault detector, after electric current I 21 and electric current I 22 being detected, can be sent to processor by electric current I 21 and electric current I 22 and the second shaft tower number 2.Processor is by after detecting analysis software, if can get Fisrt fault pointer detection to the value of electric current I 12 be greater than the value of electric current I 11, and the value of the electric current I 22 that the second fault detector detects approximates the value of electric current I 21, can judge so A phase circuit generation singlephase earth fault, and the fault section at place, trouble spot is between the first shaft tower and the second shaft tower; If can get Fisrt fault pointer detection to the value of electric current I 12 be greater than the value of electric current I 11, and the value of the electric current I 22 that the second fault detector detects is also greater than the value of electric current I 21, can judge so A phase circuit generation singlephase earth fault, and the fault section at place, trouble spot is the second shaft tower position afterwards.
In the utility model embodiment, processor can also send various control order.For example, processor can send the order that parameter lock in time is set, and also can send the order that fault condition is set, and can also send the order of control indicating fault mechanism involution etc.
In the utility model embodiment, by adopting accident indicator, reached the effect of definite fault type and location fault section.
In the utility model embodiment, as shown in Figure 2, fault detector can comprise sensor and communication unit.Sensor can be arranged on the inside of overhead transmission line accident indicator, and it can be for detection of failure message.Sensor can comprise current sensor and voltage sensor.For example, sensor can be current sensor.Current sensor can comprise the first current sensor and the second current sensor.The first current sensor can be for detection of phase fault, and the second current sensor can be for detection of singlephase earth fault.The first current sensor and the second current sensor are respectively used to detect phase fault and singlephase earth fault can be to detect respectively phase fault current information and single-phase-to-ground current information.
Like this, by sensor, detect the phase fault of overhead transmission line and the current information of single-phase earthing, and the current information detecting is converted to the adaptable current signal of fault detector that is applicable to the utility model embodiment, for example, this adaptable current signal can be the current signal that current value is less, thereby reaches the effect of the failure message that detects overhead transmission line.
In the utility model embodiment, the communication unit of fault detector is connected with sensor, the failure message that can detect for sending sensor.Communication unit can be wireless communication unit.For example, wireless communication unit can be 51 single-chip microcomputers etc.Wireless communication unit can comprise: sending module and receiver module.
The failure message that sending module can detect for sending current sensor, and failure message is sent to processor.Failure message can comprise the fault types such as earth fault that short trouble that the first current sensor detects and the second current sensor detect.Short trouble can be the phase fault of phase fault, B phase and C phase and the phase fault of A phase and C phase of A phase and B phase.Earth fault can be A phase earth fault, B phase earth fault and C phase earth fault.Failure message can also comprise the number information of shaft tower at fault detector place or other positional informations of fault detector place etc.When sending module sends failure message, can first contrast to judge fault type with predefined fault condition, and then the failure messages such as the number information of the shaft tower at fault type and fault detector place or other positional informations of fault detector place are sent to processor.
For example, suppose that the fault detector of the utility model embodiment is arranged on the first shaft tower of overhead transmission line, when A phase and B phase alternate is short-circuited fault, sensor can detect the phase fault current information of A phase and B phase.Sensor detects after the phase fault current information of A phase and B phase, and communication unit can first contrast this phase fault electric current and predefined phase fault electric current.If the phase fault current value detecting actual is compared with predefined phase fault current value moment sudden change is occurred, and shows that this phase fault occurs in A phase before this fault detector and B certain position between mutually.
Like this, the failure messages such as number information of shaft tower of sending module by sending failure message and fault detector place, to processor, reached the effect that shortens the breakdown repair time.
The information such as control command that receiver module can send for receiving processor.Control command can comprise and the parameter of the overhead transmission line accident indicator of the utility model embodiment being arranged etc.For example, the control commands such as the predefined fault condition of modification that receiver module can send for receiving processor.
Like this, the different fault condition of the control command that correlation parameter is set sending by receiving processor to set, fault detector can be arranged on the diverse location of overhead transmission line.
In the utility model embodiment, by detecting the current information of overhead transmission line, and the positional information at this current information and this current information place is sent to processor, reach definite fault type and located the effect of fault section, and then reached the effect that shortens the breakdown repair time.
Preferably, this fault detector can also comprise digital signal acquiring unit, for current signal is sampled.For example, in each cycle of electric current, can gather 64 points and carry out Fast Fourier Transform (FFT) (FFT), become digital signal to communicate analog-signal transitions.Like this, by digital signal acquiring unit, reached and improved the sensitivity of fault detect and the effect of accuracy.
It should be noted that, counting of gathering in the single cycle is more, and the result of detection will be more accurate, but the cost of cost also can be larger.
Preferably, this fault detector can also comprise indicating fault mechanism.Indicating fault mechanism is connected with communication unit, and it can be used to indicate different fault types under the triggering of failure message.Indicating fault mechanism can be annunciator and signal lamp.Annunciator can comprise first signal board and secondary signal board, and different annunciators is indicated different failure messages.For example, first signal board can be the annunciator that adopts red fluorescence paint, and secondary signal board can be the annunciator that adopts white fluorescent paint.Under illumination, adopt the visual effect of the annunciator of red fluorescence paint and the annunciator of employing white fluorescent paint more intense, obvious indication fault type, and under outdoor ultraviolet ray is irradiated, adopt the annunciator of red fluorescence paint and adopt the annunciator of white fluorescent paint to there is the effect of significantly not fading for a long time.Wherein, the annunciator of employing red fluorescence paint can be indicated the fault type of overhead transmission line by day; The annunciator of employing white fluorescent paint can be indicated the normal condition of overhead transmission line.Signal lamp can be indicated at night the fault type of overhead transmission line.For different fault types, the indication of signal lamp action can be not identical.For example, take 1s as a time cycle, for indication phase fault, the flicker number of times of signal lamp can be set to 2 times/second, and for indication single-phase earth fault, the flicker number of times of signal lamp can be set to 1 time/second.
Like this, indicating fault mechanism, by annunciator and signal lamp, has reached the effect that same fault type is indicated respectively at different time phases, but also has reached the effect of different fault types being distinguished to indication.
Preferably, this fault detector can also comprise electric capacity or battery.Electric capacity or battery are arranged in the power circuit of fault detector, can be used to signal lamp that power supply is provided.Electric capacity can be first by charging accumulation of energy, then provide power supply by electric discharge for signal lamp.Battery can be lithium battery, can be also solar cell etc.Lithium battery can adopt serviceable life at more than 8 years lithium batteries.
Preferably, this fault detector can also comprise electricity-fetching module.Electricity-fetching module is arranged in power circuit, can be by providing working power from extraneous power taking for fault detector.Electricity-fetching module can be mutual inductor.Mutual inductor can be that the iron core of coil and high magnetic conduction forms, and in the circuit design that coordinates micro-power consumption, it can produce electric energy by electromagnetic induction principle, thereby is reached for the effect that fault detector provides working power.The work of fault detector can be 10A.Electricity-fetching module can be also solar panel.
Preferably, this fault detector can also comprise clock synchronous unit, and its synchronization accuracy can reach 50 microseconds.When the fault detector of a plurality of the utility model embodiment is arranged on pole line simultaneously, clock synchronous unit can be for the clock synchronous between a plurality of fault detectors.Clock synchronous unit can be a plurality of fault detector synchronous acquisition failure messages.That is, adopt a plurality of fault detectors in clock synchronous unit can be at synchronization, and sample in the identical cycle of interval to current signal.The cycle that fault detector gathers current signal can arrange, and can arrange by processor.The cycle of fault detector is shorter, and the result of its collection is just more accurate.Fault detector can trigger indicating fault mechanism and in this locality, fault type be indicated when getting collection result, and the shaft tower number that can send this collection result and its place is waited until processor.
Like this, by clock synchronous unit, realized the synchronism that a plurality of fault detectors detect, the accuracy that has improved testing result.Processor can be analyzed testing result by detecting analysis software, thereby has reached the type of failure judgement and the interval effect that fault occurs.
Preferably, in the utility model embodiment, accident indicator can comprise telepilot.When the breakdown repair of overhead transmission line is complete or reply power supply after, telepilot can be controlled the indicating fault mechanism involution of fault detector.For example, if the breakdown repair of overhead transmission line is complete or reply power supply, occur in daytime, annunciator can be from adopting the annunciator involution of red fluorescence paint to the annunciator that adopts white fluorescent paint.If the breakdown repair of overhead transmission line is complete or reply power supply, occur in night, signal lamp will be from blink states involution to the state not glimmering.Processor can be controlled by the mode of online setting the indicating fault mechanism involution of fault detector.
In the utility model embodiment, fault detector is after failure message being detected, and first, failure message can be sent to processor by failure message by gsm module or GPRS module etc., and then, failure message can be sent to processor by USB interface.After receiving failure message, processor can compare failure message and judges to obtain fault type and fault section and the fault type getting and fault section are sent on mobile phone by detecting analysis software, can send alerting signal by trigger alarm device simultaneously.Alarm can be hummer.Like this, can reduce the man power and material's that line data-logging is caused waste.
In the utility model embodiment, preferably, this device can also comprise mobile phone.Mobile phone can be for receiving failure message and checking the historical record etc. of failure message.The mode that mobile phone receives failure message can be to receive note or voice signal etc.Wherein, a trouble spot can set in advance one or more phone number.
Like this, reach the effect of automatic decision fault type and fault section, and then reached the effect that shortens the breakdown repair time.
It should be noted that, in the utility model embodiment, the fault detector of this device can be arranged on the backbone of the transmission lines of electricity such as distribution overhead line and branch line and on the arrival line of user power utilization.Fault detector is arranged on the backbone of distribution overhead line and branch line and can be arranged on the backbone of overhead transmission line and the shaft tower of branch line, and each shaft tower carries out label in advance, and different shaft tower labels is different.
Preferably, the fault detector of this device can comprise three groups of fault detectors, and three groups of fault detectors can be respectively: first group of fault detector, second group of fault detector and the 3rd group of fault detector.Wherein, every group of fault detector at least can comprise 2 identical fault detectors.First group of fault detector can be separately positioned on the first-phase circuit of overhead transmission line, second group of fault detector can be separately positioned on the second-phase circuit of overhead transmission line, and the 3rd group of fault detector can be separately positioned on the third phase circuit of overhead transmission line.
For example, suppose that three groups of fault detectors are respectively 1 group of fault detector, 2 groups of fault detectors and 3 groups of fault detectors, and 1 group of fault detector, 2 groups of fault detectors and 3 groups of fault detectors are separately positioned on A phase circuit, B phase circuit and the C phase circuit of overhead transmission line.Every group of fault detector comprises 2 identical fault detectors, is separately positioned on primary importance and the second place of A phase, B phase and C phase circuit.Because fault detector has clock synchronous unit, therefore all fault detectors can be accomplished good time synchronized, and all fault detectors can guarantee to carry out information acquisition at synchronization.Like this, can obtain more accurate testing result.
Like this, 2 fault detectors of 2 of 1 group of fault detector fault detectors, 2 groups of fault detectors and 2 fault detectors of 3 groups of fault detectors can detect respectively A phase, B phase and the singlephase earth fault of C phase circuit and the fault section of single-phase earthing.
In the utility model embodiment, the fault detector of this device can also comprise the 4th group of fault detector and the 5th group of fault detector.The 4th group of fault detector and the 5th group of fault detector can comprise respectively 3 identical fault detectors.The 4th group of fault detector can be separately positioned on the primary importance of the three-phase phase line of overhead transmission line, and the 5th group of fault detector can be separately positioned on the second place of the three-phase phase line of overhead transmission line.The 4th group of fault detector and the 5th group of fault detector cooperatively interact, and can detect fault type and the fault section of the three-phase line of overhead transmission line.
For example, 4 groups of fault detectors and 5 groups of fault detectors can have altogether 6 fault detectors, and 4 groups of fault detectors and 5 groups of fault detectors are separately positioned on A phase, B phase and the C phase circuit of No. 4 shaft towers and No. 5 shaft towers.Suppose that 4 groups of fault detectors are arranged on the electric current that the fault detector on A phase circuit detects and undergo mutation, and 4 groups of fault detectors are arranged on the electric current that the fault detector on B phase circuit detects and also undergo mutation, and the electric current that other 4 fault detectors detect is not undergone mutation, work as 4 groups of fault detectors and 5 groups of fault detectors failure message is sent to processor, and processor gets after failure message, can judge this fault type is, between A phase and B phase, phase fault occurs, and between shorting region, be between No. 4 shaft towers and No. 5 shaft towers.
In the utility model embodiment, overhead transmission line can comprise backbone and by backbone, is connected the branch line that, branch line can comprise the first branch line and the second branch line, and between primary importance and the second place, can preset the distance of any length, the set-up mode of the 4th group of fault detector and the 5th group of fault detector can have multiple:
3 fault detectors of one: the four groups of fault detector of mode can be separately positioned on the primary importance of A phase, B phase and the C phase circuit of the backbone of overhead transmission line; 3 fault detectors of the 5th group of fault detector can be separately positioned on the second place of A phase, B phase and the C phase circuit of the backbone of overhead transmission line.
3 fault detectors of two: the four groups of fault detectors of mode can be separately positioned on the primary importance of A phase, B phase and the C phase circuit of the first branch line of overhead transmission line; 3 fault detectors of the 5th group of fault detector can be separately positioned on the second place of A phase, B phase and the C phase circuit of the first branch line of overhead transmission line.
3 fault detectors of three: the four groups of fault detectors of mode can be separately positioned on the primary importance of A phase, B phase and the C phase circuit of the first branch line of overhead transmission line; 3 fault detectors of the 5th group of fault detector can be separately positioned on the primary importance of A phase, B phase and the C phase circuit of the second branch line of overhead transmission line.
3 fault detectors of four: the four groups of fault detectors of mode can be separately positioned on the primary importance of A phase, B phase and the C phase circuit of the backbone of overhead transmission line; 3 fault detectors of the 5th group of fault detector can be separately positioned on the primary importance of A phase, B phase and the C phase circuit of the branch line of overhead transmission line.
Like this, realized and detected the object of the failure message of overhead transmission line diverse location, thereby reached the fault type of definite overhead transmission line diverse location and the effect of location fault section.
Preferably, in the utility model embodiment, this device can also comprise isolating switch.Isolating switch can comprise the first isolating switch, the second isolating switch, the 3rd isolating switch, the 4th isolating switch, the 5th isolating switch and the 6th isolating switch, wherein, the first isolating switch, the second isolating switch and the 3rd isolating switch can be separately positioned on first-phase circuit, second-phase circuit and the third phase circuit of the backbone of overhead transmission line.The 4th isolating switch, the 5th isolating switch and the 6th isolating switch can be separately positioned on first-phase circuit, second-phase circuit and the third phase circuit of the first branch line of overhead transmission line.Isolating switch can protect overhead system to avoid the harm of overvoltage and overcurrent etc.
In the utility model embodiment, reached the effect of automatic decision fault type and fault section, and then reached the effect that shortens the breakdown repair time.
Fig. 3 is arranged on the schematic diagram in overhead transmission line according to the preferably accident indicator of the utility model embodiment.
As shown in Figure 3, this circuit diagram mainly comprises: Bulk Supply Substation, isolating switch R1, isolating switch R2, isolating switch R3, isolating switch R4, isolating switch R5, isolating switch R6, P1 group fault detector, P2 group fault detector, P3 group fault detector and P4 group fault detector.
Isolating switch R1, isolating switch R2 and isolating switch R3 are separately positioned on A phase, B phase and the C phase circuit of basic routing line of overhead transmission line of Bulk Supply Substation outlet, and isolating switch R4, isolating switch R5 and isolating switch R6 are separately positioned on A phase, B phase and the C phase circuit of the first branch line of overhead transmission line.Isolating switch R1 can protect the basic routing line of overhead transmission line and the first branched line of overhead transmission line to avoid the destruction of overvoltage and overcurrent to isolating switch R6.
In embodiment of the present utility model, accident indicator can comprise P1 group fault detector, P2 group fault detector, P3 group fault detector and P4 group fault detector and processor, and processor can be the processor of the central station of intelligent distribution network.Composition and the setting position of P1 group fault detector, P2 group fault detector, P3 group fault detector and P4 group fault detector are as follows:
P1 group fault detector can comprise 3 fault detectors.3 fault detectors of P1 group fault detector can be respectively P1A fault detector, P1B fault detector and P1C fault detector, and 3 fault detectors can be separately positioned on No. 1 shaft tower of A phase, B phase and C phase circuit of overhead transmission line the first branched line.
P2 group fault detector also can comprise 3 fault detectors.3 fault detectors of P2 group fault detector can be respectively P2A fault detector, P2B fault detector and P2C fault detector, and 3 fault detectors are separately positioned on No. 2 shaft towers of A phase, B phase and C phase circuit of overhead transmission line the first branched line.
P3 group fault detector can comprise 3 fault detectors, 3 fault detectors of P3 group fault detector can be respectively P3A fault detector, P3B fault detector and P3C fault detector, and 3 fault detectors can be separately positioned on No. 3 shaft towers of A phase, B phase and C phase circuit of overhead transmission line the second branched line.Wherein, overhead transmission line the second branched line is by drawing between No. 1 shaft tower of overhead transmission line the first branched line and No. 2 shaft towers.
P4 group fault detector can comprise 3 fault detectors, it is respectively P4A fault detector, P4B fault detector and P4C fault detector, and 3 fault detectors can be separately positioned on No. 4 shaft towers of A phase, B phase and C phase circuit of overhead transmission line the second branched line.
Like this, many group fault detectors are divided into a plurality of intervals by overhead transmission line, many group fault detectors pass through to detect the current information of a plurality of points, and the positional information of the current information of a plurality of points and a plurality of points is sent to processor, can determine various faults type and a plurality of fault section.
P1 group fault detector, P2 group fault detector, P3 group fault detector and P4 group fault detector can be the fault detector of clock synchronous, like this, these fault detectors can synchronously be sent to the positional information at testing result and fault detector place the central station of intelligent distribution network.The cycle that fault detector sends testing result can arrange arbitrarily, and for example, its cycle can be 5 minutes, every 5 minutes fault detectors, can send one-time detection result and positional information to the central station of intelligent distribution network.The cycle of the transmission testing result of fault detector is shorter, and the result of its detection is more accurate.The central station of intelligent distribution network is after receiving the testing result and positional information of fault detector transmission, and type and fault section can be out of order by the automatic decision of detection analysis software.The central station of intelligent distribution network, after judging fault type and fault section, can trigger the generation alerting signals such as hummer.The warning duration length of alerting signal can arrange arbitrarily.For example, warning duration length can be set to 3 minutes.
For example, the central station of supposing intelligent distribution network finds that by detecting analysis software the detection electric current of P1C fault detector and P3C fault detector undergos mutation, and the detection electric current of other fault detectors does not occur obviously to change, can judge this fault type is C phase singlephase earth fault, and the interval of fault is between P3C fault detector and P4C fault detector.If daytime, P1C fault detector and P3C fault detector can be made board turning indication, and for example, it can be turned to red card by person who is not a member of any political party.If night, P1C fault detector and P3C fault detector can be made flashing light indication, and flicker frequency can be 1 time/second.
Again for example, the central station of supposing intelligent distribution network finds that by detecting analysis software the detection electric current of P1C fault detector, P3C fault detector, P1B fault detector and P3B fault detector undergos mutation, and the detection electric current of other indicators does not occur obviously to change, can judge this fault type is, between B phase and C phase, phase fault occurs, and this fault section is between P3B fault detector and P4B fault detector and between P3C fault detector and P4C fault detector.If daytime, P1C fault detector and P3C fault detector and P1B fault detector and P3B fault detector can be made board turning indication, and for example, it can be turned to red card by person who is not a member of any political party.If night, P1C fault detector and P3C fault detector and P1B fault detector and P3B fault detector can be made flashing light indication, and flicker frequency can be 2 times/second.
In embodiment of the present utility model, the central station of intelligent distribution network after judging fault type and fault section, can also send note to one or more phone number with notice breakdown repair personnel's fault type and failure message.Rushed to repair line fault or give circuit power transmission complete after, can or make fault detector involution by telepilot by the online mode arranging of processor.
In embodiment of the present utility model, the effect that has reached automatic decision overhead transmission line fault type and fault section and automatically produced alerting signal and send failure message to one or more phone number setting in advance.
As can be seen from the above description, according to embodiment of the present utility model, by adopting wireless communication unit to reach the effect that can effectively shorten the breakdown repair time.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. an overhead transmission line accident indicator, is characterized in that, comprising:
Fault detector, described fault detector comprises Fisrt fault indicator and the second fault detector, described Fisrt fault indicator and described the second fault detector are arranged in the same phase line of described overhead transmission line; And
Processor, is connected to respectively described Fisrt fault indicator and described the second fault detector,
Wherein, described fault detector comprises:
Sensor, described sensor setting is inner at described fault detector, for detection of failure message, described sensor is current sensor, and described current sensor comprises for detection of the first current sensor of phase fault with for detection of the second current sensor of singlephase earth fault; And
Communication unit, described communication unit is connected with described sensor, the described failure message detecting for sending described sensor.
2. overhead transmission line accident indicator according to claim 1, is characterized in that, described fault detector comprises:
First group of fault detector, is separately positioned on the first-phase circuit of described overhead transmission line;
Second group of fault detector, is separately positioned on the second-phase circuit of described overhead transmission line; And
The 3rd group of fault detector, is separately positioned on the third phase circuit of described overhead transmission line.
3. overhead transmission line accident indicator according to claim 1, is characterized in that, described fault detector comprises:
The 4th group of fault detector, is separately positioned on the primary importance of the three-phase phase line of described overhead transmission line; And
The 5th group of fault detector, is separately positioned on the second place of the three-phase phase line of described overhead transmission line.
4. overhead transmission line accident indicator according to claim 3, is characterized in that,
Described the 4th group of fault detector is separately positioned on the primary importance of three-phase phase line of the backbone of described overhead transmission line,
Described the 5th group of fault detector is separately positioned on the second place of three-phase phase line of the backbone of described overhead transmission line,
Wherein, described primary importance and described second place interval predeterminable range on the bearing of trend of the backbone of described overhead transmission line.
5. overhead transmission line accident indicator according to claim 3, is characterized in that, described overhead transmission line comprises backbone and by described backbone, be connected the first branch line of,
Described the 4th group of fault detector is separately positioned on the primary importance of three-phase phase line of described first branch line of described overhead transmission line,
Described the 5th group of fault detector is separately positioned on the second place of three-phase phase line of described first branch line of described overhead transmission line,
Wherein, second place interval predeterminable range on the bearing of trend of described the first branch line of the primary importance of the three-phase phase line of described the first branch line and the three-phase phase line of described the first branch line.
6. overhead transmission line accident indicator according to claim 3, is characterized in that, described overhead transmission line comprises backbone and by described backbone, be connected the first branch line and the second branch line that,
Described the 4th group of fault detector is separately positioned on the primary importance of three-phase phase line of described first branch line of described overhead transmission line, and
Described the 5th group of fault detector is separately positioned on the primary importance of three-phase phase line of described second branch line of described overhead transmission line.
7. overhead transmission line accident indicator according to claim 3, is characterized in that, described overhead transmission line comprises backbone and by described backbone, be connected the branch line that,
Described the 4th group of fault detector, is separately positioned on the primary importance of three-phase phase line of the backbone of described overhead transmission line, and
Described the 5th group of fault detector, is separately positioned on the primary importance of three-phase phase line of the branch line of described overhead transmission line.
8. overhead transmission line accident indicator according to claim 1, is characterized in that, also comprises:
The first isolating switch, is arranged on the first-phase circuit of backbone of described overhead transmission line;
The second isolating switch, is arranged on the second-phase circuit of backbone of described overhead transmission line;
The 3rd isolating switch, is arranged on the third phase circuit of backbone of described overhead transmission line;
The 4th isolating switch, is arranged on the first-phase circuit of the first branch line of described overhead transmission line;
The 5th isolating switch, is arranged on the second-phase circuit of the first branch line of described overhead transmission line; And
The 6th isolating switch, is arranged on the third phase circuit of the first branch line of described overhead transmission line.
9. overhead transmission line accident indicator according to claim 1, is characterized in that, described fault detector also comprises:
Indicating fault mechanism, be connected with described communication unit, be used to indicate described failure message, described indicating fault mechanism is annunciator and signal lamp, described annunciator is to be used to indicate the normal first signal board of described overhead transmission line and for indicating by day the secondary signal board of described failure message, and described signal lamp is for for indicating the signal lamp of described failure message at night.
10. overhead transmission line accident indicator according to claim 1, is characterized in that, described fault detector also comprises:
Electric capacity or battery, be arranged in the power circuit of described fault detector, is used to described signal lamp that power supply is provided; And
Electricity-fetching module, is arranged in described power circuit, for obtain energy from the external world, thinks that described fault detector provides power supply.
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|---|---|---|---|
| CN201320582323.7U CN203444066U (en) | 2013-09-18 | 2013-09-18 | Fault indication apparatus of overhead line |
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| CN201320582323.7U CN203444066U (en) | 2013-09-18 | 2013-09-18 | Fault indication apparatus of overhead line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459456A (en) * | 2013-09-18 | 2015-03-25 | 国家电网公司 | Overhead line fault indication device |
| CN105322654A (en) * | 2014-07-25 | 2016-02-10 | 国家电网公司 | Overhead line current status displaying method and device |
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2013
- 2013-09-18 CN CN201320582323.7U patent/CN203444066U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459456A (en) * | 2013-09-18 | 2015-03-25 | 国家电网公司 | Overhead line fault indication device |
| CN105322654A (en) * | 2014-07-25 | 2016-02-10 | 国家电网公司 | Overhead line current status displaying method and device |
| CN105322654B (en) * | 2014-07-25 | 2018-09-18 | 国家电网公司 | Overhead line current state display methods and device |
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