CN202886496U - Fault indicator - Google Patents
Fault indicator Download PDFInfo
- Publication number
- CN202886496U CN202886496U CN 201220531997 CN201220531997U CN202886496U CN 202886496 U CN202886496 U CN 202886496U CN 201220531997 CN201220531997 CN 201220531997 CN 201220531997 U CN201220531997 U CN 201220531997U CN 202886496 U CN202886496 U CN 202886496U
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- China
- Prior art keywords
- fault detector
- phase
- rear support
- main frame
- fault
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A fault indicator of the utility model relates to a device for detecting faults of a cable and a transmission line. The utility model aims to provide the fault indicator which is capable of automatically adjusting a fault current operation value based on a load current on the line. The fault indicator comprises four sensors, a host and a display mechanism. The four sensors are connected with the host. The host is connected with the display mechanism. The four sensors are respectively used for detecting current signals of an A phase, a B phase, a C phase and a zero-sequence phase of the line. The host is used for calculating a current line current value based on the detected current signals and calculating an operation value of a fault current. The display mechanism is used for displaying states of the line.
Description
Technical field
The utility model relates to the device of fault in a kind of exploration cable, the transmission line.
Background technology
Modal fault is singlephase earth fault and phase fault in the ultra-high-tension power transmission line, after ultra-high-tension power transmission line breaks down, if there is not online pick-up unit, just can only take the backward way of segmentation combined floodgate looking up the fault section and blindness line walking, all be great loss for manpower, financial resources.And the working value of the short-circuit current that employed fault detector sets in prior art definite value normally, for example 600A or 800A, and the capacity of some circuit itself is little, and its short-circuit current does not far reach 600A or 800A, and indicator is failure to actuate when causing breaking down.In addition, traditional fault detector all is to adopt the mode of battery or external power supply to power to main frame, and the life-span of battery is limited, needs regularly indicator to be safeguarded; In addition, traditional fault detector adopts electric energy to drive indicating mechanism when detecting line fault and makes the indication actions such as luminous, board turning, yet electric energy drives and makes indicating mechanism itself have potential faults, needs often fault detector to be safeguarded, has improved operation cost.
The utility model content
The technical problems to be solved in the utility model provides a kind of fault detector that can automatically adjust according to the load current on the circuit fault current working value.
The utility model fault detector, comprise four sensors, main frame and indication mechanisms, described four sensors are connected with main frame, described main frame is connected with indication mechanism, described four sensors are respectively applied to A phase in the detection line, B phase, C phase and the zero sequence current signal in mutually, described main frame is calculated current line electricity flow valuve according to the detected current signal of sensor, and calculates the working value of fault current, and described indication mechanism is used for the circuit state.
The utility model fault detector is provided with super capacitor in the wherein said main frame, and the sensor corresponding with A phase circuit is connected with super capacitor.
The utility model fault detector, wherein said indication mechanism comprises frame and at least one group of demonstration body, wherein said frame comprises front support and rear support, described front support is fixedly connected on the front portion of rear support, every group of described demonstration body comprises display board, turning axle and magnet, described turning axle level is installed between front support and the rear support, described display board and magnet are fixedly mounted on the turning axle, position corresponding with every group of described demonstration body in the described rear support is installed with coil rack, be wound with respectively coil on each described coil rack, be enclosed with iron-core coil in described each coil, the both sides of magnet are forwards extended and are laid respectively at the two ends of described iron-core coil.
The utility model fault detector, the position corresponding with every group of described demonstration body is equipped with and transfers the crack screw on the wherein said rear support, and the front end of described accent crack screw offers mounting hole, and the rear end of described turning axle is arranged in the mounting hole.
The utility model fault detector, the front end of the wherein said rear support position corresponding with every group of described demonstration body is installed with the magnetic shielding iron hoop, and described magnetic shielding iron hoop is arranged on the periphery of magnet and iron-core coil front end.
The utility model fault detector, wherein said rear support rear portion is equipped with rear door.
The utility model fault detector, wherein said demonstration body is four groups.
The utility model fault detector difference from prior art is that the utility model fault detector adopts four sensors to gather respectively A phase in the circuit, B phase, C phase and the zero sequence current signal in mutually, the signal that collects is sent on the main frame, main frame is calculated current current value according to algorithm, and calculate the average load electric current on the circuit in nearly a period of time, determine the working value of fault current according to the average load region, when sensor detects current signal in the circuit and reaches the working value of fault current, send display to indication mechanism.The advantage of whole device is to determine according to the average load of circuit the size of action current, and average load is little, and short-circuit current value is just little, makes the better adaptability of the utility model fault detector.
The super capacitor of installing in the utility model fault detector can make the inductor on the A circuitry phase in collection signal super capacitor be charged, and is the main frame power supply with super capacitor as the power supply of main frame; Indication mechanism adopts physical construction to show malfunction, does not rely on driven by power, has reduced the probability that indicator itself breaks down, and makes its serviceability more stable; The magnetic shielding iron hoop of installing in the indication mechanism makes a plurality of demonstration physical efficiencys all carry out separately indicating fault, and can not be subject to the each other phase mutual interference in magnetic field.
Below in conjunction with accompanying drawing fault detector of the present utility model is described further.
Description of drawings
Fig. 1 is the front view of the utility model fault detector;
Fig. 2 is the vertical view of the utility model fault detector;
Fig. 3 is the front view of display unit in the utility model fault detector;
Fig. 4 is A-A cut-open view among Fig. 3;
Fig. 5 is the stereographic map of display unit in the utility model fault detector.
Embodiment
The utility model fault detector comprises four sensors, main frame and indication mechanisms, four sensors are connected with main frame, main frame is connected with indication mechanism, four sensors are respectively applied to A phase in the detection line, B phase, C phase and the zero sequence current signal in mutually, main frame is calculated current line electricity flow valuve according to the detected current signal of sensor, and calculate the working value of fault current, indication mechanism is used for the circuit state.Be provided with super capacitor in the main frame, the sensor corresponding with A phase circuit is connected with super capacitor.As depicted in figs. 1 and 2, main frame and indication mechanism are installed in the housing 13, offer four display windows 14 on the display panel of housing 13 front ends, housing 13 rear ends offer some line terminals 15, being respectively applied to sensor is connected with main frame, and can be connected with the circuit overall control center by 485 ports, the running status of circuit is uploaded, thus the localization of fault of realization distribution system.
Such as Fig. 3 and shown in Figure 5, the indication mechanism in the utility model fault detector comprises that frame and four groups show bodies, and four groups show body A, B, C and the zero sequence in the corresponding high-tension line be mutually respectively.Frame comprises front support 1 and rear support 2, and front support 1 is fixedly connected on the front portion of rear support 2 by screw 11, and rear support 2 rear portions are equipped with rear door 10.In conjunction with shown in Figure 4, every group shows that body comprises display board 3, turning axle 4 and magnet 5, turning axle 4 levels are installed between front support 1 and the rear support 2, show that with every group the corresponding position of body is equipped with accent crack screw 9 on the rear support 2, transfer the front end of crack screw 9 to offer mounting hole, the rear end of turning axle 4 is arranged in the mounting hole, and display board 3 and magnet 5 are fixedly mounted on the turning axle 4 by screw thread.Show that with every group the corresponding position of body is installed with coil rack 6 in the rear support 2, be wound with respectively coil 7 on each coil rack 6, be enclosed with iron-core coil 8 in each coil 7, the both sides of magnet 5 are forwards extended and are laid respectively at the two ends of iron-core coil 8.The front end of rear support 2 shows that with every group the corresponding position of body is installed with magnetic shielding iron hoop 12, and magnetic shielding iron hoop 12 is arranged on the periphery of magnet 5 and iron-core coil 8 front ends.
When the inductor in the fault detector detect in the high-tension line A, B, C and zero sequence mutually in the load current of a certain phase when reaching the working value of fault current, main frame sends electric current in the corresponding coil 7 of fault phase, hot-wire coil 7 makes iron-core coil 8 wherein produce magnetic field, magnet 5 on the turning axle 4 is under the magnetic fields that iron-core coil 8 produces, drive display board 3 rotations, make display board 3 externally demonstrate malfunction.Four groups of magnetic shielding iron hoops 12 that show that external body is installed make the magnetic field that produces in the iron-core coil 8 can not affect magnet 5 in the adjacent demonstration body, avoid the phase mutual interference, have improved the accuracy of indicating fault.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (7)
1. fault detector, it is characterized in that, comprise four sensors, main frame and indication mechanisms, described four sensors are connected with main frame, described main frame is connected with indication mechanism, and described four sensors are respectively applied to A phase in the detection line, B phase, C phase and the zero sequence current signal in mutually, and described main frame is calculated current line electricity flow valuve according to the detected current signal of sensor, and calculate the working value of fault current, described indication mechanism is used for the circuit state.
2. fault detector according to claim 1, it is characterized in that: be provided with super capacitor in the described main frame, the sensor corresponding with A phase circuit is connected with super capacitor.
3. fault detector according to claim 2, it is characterized in that: described indication mechanism comprises frame and at least one group of demonstration body, wherein said frame comprises front support and rear support, described front support is fixedly connected on the front portion of rear support, every group of described demonstration body comprises display board, turning axle and magnet, described turning axle level is installed between front support and the rear support, described display board and magnet are fixedly mounted on the turning axle, position corresponding with every group of described demonstration body in the described rear support is installed with coil rack, be wound with respectively coil on each described coil rack, be enclosed with iron-core coil in described each coil, the both sides of magnet are forwards extended and are laid respectively at the two ends of described iron-core coil.
4. fault detector according to claim 3, it is characterized in that: the position corresponding with every group of described demonstration body is equipped with and transfers the crack screw on the described rear support, the front end of described accent crack screw offers mounting hole, and the rear end of described turning axle is arranged in the mounting hole.
5. fault detector according to claim 4 is characterized in that: the front end of the described rear support position corresponding with every group of described demonstration body is installed with the magnetic shielding iron hoop, and described magnetic shielding iron hoop is arranged on the periphery of magnet and iron-core coil front end.
6. fault detector according to claim 5, it is characterized in that: described rear support rear portion is equipped with rear door.
7. fault detector according to claim 6, it is characterized in that: described demonstration body is four groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220531997 CN202886496U (en) | 2012-10-17 | 2012-10-17 | Fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220531997 CN202886496U (en) | 2012-10-17 | 2012-10-17 | Fault indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886496U true CN202886496U (en) | 2013-04-17 |
Family
ID=48077907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220531997 Expired - Lifetime CN202886496U (en) | 2012-10-17 | 2012-10-17 | Fault indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886496U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323650A (en) * | 2013-06-28 | 2013-09-25 | 珠海博威电气有限公司 | Overhead line comprehensive monitoring device |
| CN104375060A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Fault indicator |
| CN104407250A (en) * | 2014-11-28 | 2015-03-11 | 国家电网公司 | Fault indicator |
-
2012
- 2012-10-17 CN CN 201220531997 patent/CN202886496U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323650A (en) * | 2013-06-28 | 2013-09-25 | 珠海博威电气有限公司 | Overhead line comprehensive monitoring device |
| CN104375060A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Fault indicator |
| CN104407250A (en) * | 2014-11-28 | 2015-03-11 | 国家电网公司 | Fault indicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |