CN204154818U - The multiplex grounding resistance measurement equipment of a kind of new mobile type - Google Patents
The multiplex grounding resistance measurement equipment of a kind of new mobile type Download PDFInfo
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- CN204154818U CN204154818U CN201420657169.XU CN201420657169U CN204154818U CN 204154818 U CN204154818 U CN 204154818U CN 201420657169 U CN201420657169 U CN 201420657169U CN 204154818 U CN204154818 U CN 204154818U
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- 238000005259 measurement Methods 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012913 prioritisation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model discloses the multiplex grounding resistance measurement equipment of a kind of new mobile type, comprise safety protective box, universal rotational wheel, maincenter control device, current earthing pole, voltage transformer (VT), current transformer, gate-controlled switch KA, reometer, voltage table, isolating transformer, power supply, voltage ground pole, measured object earthing pole.Compared with prior art, the utility model has the advantages that: structure is simple, and measuring accuracy is high, antijamming capability is strong, uses extensively, long service life.
Description
technical field
The utility model relates to power equipment fields of measurement, particularly relates to the multiplex grounding resistance measurement equipment of a kind of new mobile type.
Background technology
Along with the develop rapidly of society economy, the step of power grid construction is more and more fast, and the development of super extra-high voltage power transmission and distribution technology also accelerates paces, therefore more and more higher to the requirement of Lightning Impulse Overvoltage Protection.High pressure lightning protection is an important safety precautions, because stake resistance is weighed in the overvoltage protection such as shaft tower, earth mat performance want one of index.In order to ensure the good earth of equipment, the annual routine inspection of a power department transformer station and the rod grounded resistance of tower.But current stake resistance equipment, sensitive not, and can not use mutually between transformer station and tower bar.And use dismounting very inconvenient, also can omit some little parts.In current technology, due to the different in kind of soil, cause in earth mat the interference that there is stray current and voltage, measurement result is accurately accurate not, produces potential safety hazard.
Utility model content
The purpose of this utility model is just to overcome above-mentioned deficiency, provides a kind of new mobile type multiplex grounding resistance measurement equipment.For achieving the above object, the technical solution of the utility model is: the multiplex grounding resistance measurement equipment of a kind of new mobile type, comprises safety protective box, universal rotational wheel, maincenter control device, current earthing pole, voltage transformer (VT), current transformer, gate-controlled switch KA, reometer, voltage table, isolating transformer, power supply, voltage ground pole, measured object earthing pole; Described voltage transformer (VT), current transformer, gate-controlled switch KA, reometer, voltage table, isolating transformer, power supply are installed in safety protective box, described maincenter control device is arranged on safety protective box, and described universal rotational wheel, voltage ground pole are arranged on safety protective box bottom outside; Described voltage transformer (VT) primary side one end is connected with measured object earthing pole, and the other end is connected with current earthing pole; Described measured object earthing pole is connected with earth mat, and the measured object earthing pole other end is connected with voltage table; Described voltage table is connected with voltage ground pole; The secondary side output terminal of described voltage transformer (VT) is connected with maincenter control device; Described current transformer primary side one end is connected with tested earth mat, and the other end is connected with one end of gate-controlled switch KA; The secondary side output terminal of described current transformer is connected with maincenter control device; The other end of described gate-controlled switch KA is connected with reometer; Described reometer is connected with isolating transformer; Described isolating transformer is connected with power supply, and the 3rd end and the current earthing pole of described power supply one end and gate-controlled switch KA are connected; The control end of described gate-controlled switch KA is connected with maincenter control device.
Further prioritization scheme: 20-25 meters, interval between described voltage ground pole and tested grounding body, 40-50 meters, interval between described pole, current earthing pole and tested grounding body.
Further prioritization scheme: described current earthing pole, measured object earthing pole are arranged on universal rotational wheel, and described voltage ground pole and current earthing pole are probe; Described voltage table is the voltage table that internal resistance is less, magnitude of voltage scale is thinner, and described power supply is AC power.
Further prioritization scheme: described maincenter control device comprises AD converter, industrial computer, display, control panel, switch controlling signal output terminal and voltage, current sample input end.
The utility model has the advantages that: structure is simple, and measuring accuracy is high, antijamming capability is strong, uses extensively, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the multiplex grounding resistance measurement equipment of a kind of new mobile type, comprise safety protective box 1, universal rotational wheel 13, maincenter control device 11, current earthing pole 2, voltage transformer (VT) 3, current transformer 4, gate-controlled switch KA5, reometer 6, voltage table 9, isolating transformer 7, power supply 8, voltage ground pole 10, measured object earthing pole 12; Described voltage transformer (VT) 3, current transformer 4, gate-controlled switch KA5, reometer 6, voltage table 9, isolating transformer 7, power supply 8 are installed in safety protective box, described maincenter control device 11 is arranged on safety protective box 1, and the installation 13 of described universal rotational wheel, voltage ground pole 10 are in safety protective box 1 bottom outside; Described voltage transformer (VT) 3 primary side one end is connected with measured object earthing pole 12, and the other end is connected with current earthing pole 2; Described measured object earthing pole 12 is connected 14 with earth mat, and measured object earthing pole 12 other end is connected with voltage table 9; Described voltage table 9 is connected with voltage ground pole 10; The secondary side output terminal of described voltage transformer (VT) 3 is connected with maincenter control device 11; Described current transformer 4 primary side one end is connected with measured object earthing pole 12, and the other end is connected with one end of gate-controlled switch KA5; The secondary side output terminal of described current transformer 4 is connected with maincenter control device 11; The other end of described gate-controlled switch KA5 is connected with reometer 6; Described reometer 6 is connected with isolating transformer 7; Described isolating transformer 7 is connected with power supply 8, and the 3rd end and the current earthing pole 2 of described power supply 8 one end and gate-controlled switch KA5 are connected; The control end of described gate-controlled switch KA5 is connected with maincenter control device 11.
Claims (4)
1. the multiplex grounding resistance measurement equipment of new mobile type, is characterized in that: the multiplex grounding resistance measurement equipment of described new mobile type comprises safety protective box, universal rotational wheel, maincenter control device, current earthing pole, voltage transformer (VT), current transformer, gate-controlled switch KA, reometer, voltage table, isolating transformer, power supply, voltage ground pole, measured object earthing pole; Described voltage transformer (VT), current transformer, gate-controlled switch KA, reometer, voltage table, isolating transformer, power supply are installed in safety protective box, described maincenter control device is arranged on safety protective box, and described universal rotational wheel, voltage ground pole are arranged on safety protective box bottom outside; Described voltage transformer (VT) primary side one end is connected with measured object earthing pole, and the other end is connected with current earthing pole; Described measured object earthing pole is connected with earth mat, and the measured object earthing pole other end is connected with voltage table; Described voltage table is connected with voltage ground pole; The secondary side output terminal of described voltage transformer (VT) is connected with maincenter control device; Described current transformer primary side one end is connected with tested earth mat, and the other end is connected with one end of gate-controlled switch KA; The secondary side output terminal of described current transformer is connected with maincenter control device; The other end of described gate-controlled switch KA is connected with reometer; Described reometer is connected with isolating transformer; Described isolating transformer is connected with power supply, and the 3rd end and the current earthing pole of described power supply one end and gate-controlled switch KA are connected; The control end of described gate-controlled switch KA is connected with maincenter control device.
2. the multiplex grounding resistance measurement equipment of new mobile type according to claim 1, is characterized in that: described current earthing pole, measured object earthing pole are arranged on universal rotational wheel; 20-25 meters, interval between described voltage ground pole and tested grounding body, 40-50 meters, interval between described pole, current earthing pole and tested grounding body.
3. the multiplex grounding resistance measurement equipment of new mobile type according to claim 1, is characterized in that: described voltage ground pole and current earthing pole are probe; Described voltage table is the voltage table that internal resistance is less, magnitude of voltage scale is thinner, and described power supply is AC power.
4. the multiplex grounding resistance measurement equipment of new mobile type according to claim 1, is characterized in that: described maincenter control device comprises AD converter, industrial computer, display, control panel, switch controlling signal output terminal and voltage, current sample input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657169.XU CN204154818U (en) | 2014-11-06 | 2014-11-06 | The multiplex grounding resistance measurement equipment of a kind of new mobile type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657169.XU CN204154818U (en) | 2014-11-06 | 2014-11-06 | The multiplex grounding resistance measurement equipment of a kind of new mobile type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154818U true CN204154818U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420657169.XU Active CN204154818U (en) | 2014-11-06 | 2014-11-06 | The multiplex grounding resistance measurement equipment of a kind of new mobile type |
Country Status (1)
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| CN (1) | CN204154818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025664A (en) * | 2016-06-27 | 2016-10-12 | 国网山东省电力公司济南供电公司 | Grounding device convenient for measurement |
| CN108627703A (en) * | 2018-07-30 | 2018-10-09 | 国网辽宁省电力有限公司铁岭供电公司 | A kind of tower bar grounding resistance monitoring device |
-
2014
- 2014-11-06 CN CN201420657169.XU patent/CN204154818U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025664A (en) * | 2016-06-27 | 2016-10-12 | 国网山东省电力公司济南供电公司 | Grounding device convenient for measurement |
| CN106025664B (en) * | 2016-06-27 | 2018-07-20 | 国网山东省电力公司济南供电公司 | A kind of earthing or grounding means convenient for measuring |
| CN108627703A (en) * | 2018-07-30 | 2018-10-09 | 国网辽宁省电力有限公司铁岭供电公司 | A kind of tower bar grounding resistance monitoring device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |