CN204177911U - The quick checking of a kind of 0.4kV overhead transmission line leakage is detected as covering device - Google Patents
The quick checking of a kind of 0.4kV overhead transmission line leakage is detected as covering device Download PDFInfo
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- CN204177911U CN204177911U CN201420702471.2U CN201420702471U CN204177911U CN 204177911 U CN204177911 U CN 204177911U CN 201420702471 U CN201420702471 U CN 201420702471U CN 204177911 U CN204177911 U CN 204177911U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000004088 simulation Methods 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses the quick checking of a kind of 0.4kV overhead transmission line leakage and be detected as covering device, simulation electric leakage power unit access 220V alternating current is used for simulating electric leakage line power, leakage current measure portion is by insulation rod, clamp leakage current table, wireless signal data radiating circuit forms, described insulation rod supports clamp leakage current table and makes it to reach pole line height and snapped in by 0.4kV aerial condutor in clamp leakage current table, the leakage current information that clamp leakage current table records is sent to leakage current display section and shows by described wireless signal data radiating circuit.It is controlled that the utility model achieves detection leakage current, improves the security of the rear repairing work of RCD tripping operation, reach the object reducing costs, improve power supply reliability, increase work efficiency and improve security performance.
Description
Technical field
The utility model relates to the complete equipment that the quick checking of 0.4kV overhead transmission line leakage detects.
Background technology
Up to the present, domestic not yet have specially for the complete equipment that the quick checking of 0.4kV overhead transmission line leakage detects.After RCD tripping operation in existing low-voltage distribution apparatus, pressure power transmission must be carried out to electric leakage circuit during repairing, when carrying out pressure power transmission, there is larger potential safety hazard.Then close down test to user side switch from house to house, the efficiency getting rid of leak current fault is like this lower, and power supply enterprise's sale of electricity and client's electricity consumption are all a greater impact.
Utility model content
Technical problem to be solved in the utility model just there is provided the quick checking of a kind of 0.4kV overhead transmission line leakage and is detected as covering device, and convenient detection, improves detection efficiency.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of 0.4kV overhead transmission line leakage quick checking is detected as covering device, comprise simulation electric leakage power unit, leakage current measure portion, leakage current display section, described simulation electric leakage power unit access 220V alternating current is used for simulating electric leakage line power, described leakage current measure portion is by insulation rod, clamp leakage current table, wireless signal data radiating circuit forms, described insulation rod supports clamp leakage current table and makes it to reach pole line height and snapped in by 0.4kV aerial condutor in clamp leakage current table, the leakage current information that clamp leakage current table records is sent to leakage current display section and shows by described wireless signal data radiating circuit.
Preferably, described leakage current display section comprises wireless signal data receiver circuit, data processing circuit, current data display circuit, described wireless signal data receiver circuit receives the leakage current information that wireless signal data radiating circuit is launched, and described data processing circuit is shown by current data display circuit after processing leakage current information.
Preferably, described simulation electric leakage power unit comprises gauge tap, electronic pressure regulating module, isolating transformer, monitoring current table, binding clip, gauge tap control simulation on/off, voltage through adjustment is delivered to isolating transformer by electronic pressure regulating module, the simulation leakage current produced by isolating transformer is through monitoring current table to binding clip, and binding clip accesses aerial condutor.
0.4kV overhead transmission line leakage quick checking of the present utility model is detected as covering device, facilitates the detection to leak current fault, improves work efficiency.
Therefore the beneficial effects of the utility model are embodied in: realize detecting leakage current controlled; improve the security of the rear repairing work of RCD tripping operation; reach the object reducing costs, improve power supply reliability, increase work efficiency and improve security performance, to the strong intelligent grid of Accelerating The Construction, there is significant economic benefit and social effect.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is the circuit theory diagrams of simulation electric leakage power unit;
Fig. 2 is that the quick checking of 0.4kV overhead transmission line leakage is detected as covering device fundamental diagram.
Embodiment
The utility model is illustrated below in conjunction with Fig. 1 and Fig. 2.
The quick checking of a kind of 0.4kV overhead transmission line leakage is detected as covering device, comprises simulation electric leakage power unit, leakage current measure portion, leakage current display section.
Wherein simulation electric leakage power unit as shown in Figure 1: comprise gauge tap 2, electronic pressure regulating module 3, isolating transformer 7, monitoring current table 9, binding clip 10, 220V AC power is through melt 1 to gauge tap 2 to electronic pressure regulating module 3, voltage through adjustment is delivered to isolating transformer 7, by isolating transformer 7 primary winding to 220V AC power zero line, isolating transformer 7 secondary coil produce simulation leakage current through monitoring current table 9 to binding clip 10, simulation leakage current accesses aerial condutor by binding clip 10, aerial condutor, greatly, ground rod 8, isolating transformer 7 secondary coil forms a leakage current loop.
Leakage current measure portion: the battery powered mode of power acquisition 9V, described leakage current measure portion is made up of insulation rod 5, clamp leakage current table 4, wireless signal data radiating circuit, carry out being connected with clamp leakage current table with insulation rod and make it to reach pole line height, 0.4kV aerial condutor is pushed into by clamp leakage current table, 0.4kV aerial condutor snaps in clamp leakage current table, and the leakage current information that clamp leakage current table records is sent to leakage current display section and shows by described wireless signal data radiating circuit.
Leakage current display section: the battery powered mode of power acquisition 9V, described leakage current display section comprises wireless signal data receiver circuit, data processing circuit, current data display circuit, described wireless signal data receiver circuit receives the leakage current information that wireless signal data radiating circuit is launched, described data processing circuit is shown by current data display circuit after processing leakage current information, leakage current display section is integrated on a leakage current monitoring indicator gauge 6, observe leakage current monitoring indicator gauge 6, the current value of measurement can be read, measure and complete drop-down for clamp leakage current table making it to be separated with 0.4kV aerial condutor.
In addition, for intensive consideration, simulation electric leakage power unit, leakage current detecting portion and leakage current display section can be arranged in a suitcase and reach portable object.
As shown in Figure 2: the quick checking of 0.4kV overhead transmission line leakage is detected as covering device fundamental diagram:
Utilize above-mentioned 0.4kV overhead transmission line leakage to check quickly to be detected as the method that covering device carries out detecting as follows: a certain line electrical leakage of 0.4kV overhead transmission line causes RCD to trip, first determine it is which phase line electrical leakage, by this 0.4kV line outage, pull open disconnector 11 and carry out related security, extract all electric leakage part circuit melts 12, the output neutral line (zero line) of this circuit is separated with the neutral line (zero line) stake 13 of controller switching equipment, the quick checking of 0.4kV overhead transmission line leakage is detected as the out-put supply zero line of covering device through ground rod 8 (insertion depth 60 centimeters) access the earth, binding clip 10 accesses stake side under outlet line melt, the quick checking of 0.4kV overhead transmission line leakage is detected as covering device and inputs 220 alternating voltages, to close device gauge tap 2, monitoring current table 9 observed by regulating device Current adjustment potentiometer is 30mA.
Carry out being connected with clamp leakage current table 4 with insulation rod 5 and make it to reach pole line height, measurement instrument will be pushed into 0.4kV aerial condutor, 0.4kV aerial condutor will snap in be measured in clamp leakage current table, observe leakage current monitoring indicator gauge 6, read the current value measured, measure and complete drop-down for clamp leakage current table 4 making it to be separated with 0.4kV aerial condutor.Adopt similar approach to detect each branch line leakage current situation, as current value shows 30 milliamperes, just can judge that this place is as leakage.
After leakage failture evacuation, the output neutral line (zero line) of this circuit is connected with the neutral line (zero line) stake of controller switching equipment, installs all melts, the switch-dividing that closes, disconnector, recover normal power supply.
Claims (3)
1. a 0.4kV overhead transmission line leakage quick checking is detected as covering device, it is characterized in that: comprise simulation electric leakage power unit, leakage current measure portion, leakage current display section, described simulation electric leakage power unit access 220V alternating current is used for simulating electric leakage line power, described leakage current measure portion is by insulation rod, clamp leakage current table, wireless signal data radiating circuit forms, described insulation rod supports clamp leakage current table and makes it to reach pole line height and snapped in by 0.4kV aerial condutor in clamp leakage current table, the leakage current information that clamp leakage current table records is sent to leakage current display section and shows by described wireless signal data radiating circuit.
2. a kind of 0.4kV overhead transmission line leakage quick checking according to claim 1 is detected as covering device, it is characterized in that: described leakage current display section comprises wireless signal data receiver circuit, data processing circuit, current data display circuit, described wireless signal data receiver circuit receives the leakage current information that wireless signal data radiating circuit is launched, and described data processing circuit is shown by current data display circuit after processing leakage current information.
3. a kind of 0.4kV overhead transmission line leakage quick checking according to claim 1 is detected as covering device, it is characterized in that: described simulation electric leakage power unit comprises gauge tap, electronic pressure regulating module, isolating transformer, monitoring current table, binding clip, gauge tap control simulation on/off, voltage through adjustment is delivered to isolating transformer by electronic pressure regulating module, the simulation leakage current produced by isolating transformer is through monitoring current table to binding clip, and binding clip accesses aerial condutor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702471.2U CN204177911U (en) | 2014-11-20 | 2014-11-20 | The quick checking of a kind of 0.4kV overhead transmission line leakage is detected as covering device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420702471.2U CN204177911U (en) | 2014-11-20 | 2014-11-20 | The quick checking of a kind of 0.4kV overhead transmission line leakage is detected as covering device |
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| CN204177911U true CN204177911U (en) | 2015-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360236A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | Quick detection complete device and method for electric leakage points of 0.4 kV overhead line |
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2014
- 2014-11-20 CN CN201420702471.2U patent/CN204177911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360236A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | Quick detection complete device and method for electric leakage points of 0.4 kV overhead line |
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