CN103852609A - Metering box, ground wire hitching method of the metering box, and replacement method of current transformer of the metering box - Google Patents
Metering box, ground wire hitching method of the metering box, and replacement method of current transformer of the metering box Download PDFInfo
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- CN103852609A CN103852609A CN201210496601.7A CN201210496601A CN103852609A CN 103852609 A CN103852609 A CN 103852609A CN 201210496601 A CN201210496601 A CN 201210496601A CN 103852609 A CN103852609 A CN 103852609A
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- batch meter
- stripping
- mouthful
- protective jacket
- ground wire
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Abstract
The invention provides a metering box, a ground wire hitching method of the metering box, and a replacement method of a current transformer of the metering box. The metering box comprises a meter, multiple current transformers electrically connected with the meter, multiple input cables in one-to-one correspondence and in electrical connection with the input ends of the multiple current transformers, and multiple protective sleeves, wherein each input cable is provided with a first stripping port formed by peeling an insulation layer, and the first stripping port of each input cable is detachably provided with a protective sleeve. When a ground wire needs to be hitched to the input ends of the current transformers, such as when the current transformers in the metering box are replaced, the ground wire can be directly connected with an exposed metal wire at the first stripping port, such that what is needed is only to turn off the knife switches at the input ends of the transformers rather than breaking a high voltage drop fuse at the input ends of a transformer, thus the operation on the high voltage drop fuse is reduced, and the labor intensity of the work personnel is also reduced.
Description
Technical field
The present invention relates to power domain, more specifically, relate to a kind of replacing method of batch meter and ground wire hooking method summation current transformer thereof.
Background technology
In prior art, in the time that needs are changed current transformer in 380V batch meter, first need to be at the input end hanging earthing conductor of current transformer.Current way is at the knife switch place of the input end of current transformer hanging earthing conductor, if but at knife switch place hanging earthing conductor, just must first disconnect high pressure fall insurance device.So just need staff to operate to be frequently placed in the high pressure fall insurance device of transformer input end, increased staff's working strength, also more dangerous to the operation of high pressure fall insurance device.
Summary of the invention
The present invention aims to provide a kind of replacing method of batch meter and ground wire hooking method summation current transformer thereof, needs the problem of operate high pressure fall insurance device when solving the current transformer of replacing batch meter of prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of batch meter, comprising: gauging table; Multiple current transformers, are electrically connected with gauging table; Multiple input cables, multiple input cables are electrically connected correspondingly with the input end of multiple current transformers; On each input cable, be provided with the first stripping mouthful forming by stripping insulation layer; Multiple protective jackets, the first stripping mouthful place of each input cable is removably provided with a protective jacket.
Further, batch meter also comprises zero line cable, and zero line cable is electrically connected with gauging table; On the insulation course of zero line cable, be provided with the second stripping mouthful forming by stripping insulation layer, the second stripping mouthful place is removably provided with a protective jacket.
Further, the first stripping mouth ringwise.
Further, the second stripping mouth ringwise.
Further, protective jacket comprises body, and body ringwise; Body has the opening that connects vertically two ends.
Further, protective jacket also comprises afterbody, and afterbody is connected with body.
Further, protective jacket is made up of electro-insulating rubber.
According to a second aspect of the invention, also provide a kind of ground wire hooking method of batch meter, above-mentioned batch meter is provided; Dismounting is arranged on the first protective jacket of shelling on mouth of multiple input cables of batch meter, to expose the first stripping mouth; On the first stripping mouth, connect ground wire.
According to a third aspect of the present invention, also provide a kind of replacing method of current transformer of batch meter, above-mentioned batch meter is provided; Dismounting is arranged on the first protective jacket of shelling on mouth of multiple input cables of batch meter, to expose the first stripping mouth; On the first stripping mouth, connect ground wire; Change the current transformer in batch meter; Remove ground wire, and reinstall protective jacket at the first stripping mouthful place of input cable.
Owing to being provided with the first stripping mouthful forming by stripping insulation layer on the each input cable in batch meter, make when need to be at current transformer input end hanging earthing conductor time, for example, while changing the current transformer in batch meter, can directly ground wire be connected on the exposed metal wire at the first stripping mouth place.Like this, only need the knife switch of the input end of turn-off current mutual inductor, and do not need to disconnect the high pressure fall insurance device of transformer input end, reduced the operation to high pressure fall insurance device, also reduced staff's working strength.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown batch meter in the present invention and has not arranged the schematic diagram of protective jacket;
Fig. 2 has schematically shown batch meter and has arranged the schematic diagram of protective jacket; And
Fig. 3 has schematically shown the structural representation of protective jacket.
Reference numeral in figure: 10, gauging table; 20, current transformer; 30, input cable; 31, the first stripping mouthful; 40, protective jacket; 41, body; 411, opening; 42, afterbody; 50, zero line cable; 51, the second stripping mouthful; 60, knife switch.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
According to a first aspect of the invention, provide a kind of batch meter, as depicted in figs. 1 and 2, this batch meter comprises gauging table 10; Multiple current transformers 20, are electrically connected with gauging table 10; Multiple input cables 30, multiple input cables 30 are electrically connected correspondingly with the input end of multiple current transformers 20; On each input cable 30, be provided with the first stripping mouth 31 forming by stripping insulation layer; Multiple protective jackets 40, first stripping mouthful 31 places of each input cable 30 are removably provided with a protective jacket 40.
Owing to being provided with the first stripping mouth 31 forming by stripping insulation layer on the each input cable 30 in batch meter, make when need to be at current transformer 20 input end hanging earthing conductor time, for example, while changing the current transformer in batch meter, can directly ground wire be connected on the exposed metal wire in the first stripping mouth 31 places.Like this, only need the knife switch 60 of the input end of turn-off current mutual inductor 20, and do not need to disconnect the high pressure fall insurance device of transformer input end, reduced the operation to high pressure fall insurance device, also reduced staff's working strength.Because each first stripping mouthful 31 places are removably provided with protective jacket 40, guaranteed in the time that batch meter is normally worked again, can there is not leaky in the first stripping mouth 31, guaranteed batch meter safe operation.
Preferably, batch meter also comprises zero line cable 50, and zero line cable 50 is electrically connected with gauging table 10; On the insulation course of zero line cable 50, be provided with the second stripping mouthful 51, the second stripping mouthful 51 places that form by stripping insulation layer a protective jacket 40 is removably installed.On the insulation course of zero line cable 50, be provided with the second stripping mouth 51, when needs are on zero line cable 50 when hanging earthing conductor, also can be at second stripping mouth 51 place's hanging earthing conductors.
In addition, second stripping mouthful 51 places of the first stripping mouthfuls 31 of input cable 30 and zero line cable 50 not only can be by hanging earthing conductor, and other equipment (for example voltage detection device) also can be electrically connected with input cable 30 and zero line cable 50 respectively by the first stripping mouth 31 and the second stripping mouthfuls 51.
Preferably, the first stripping mouth 31 ringwise.Preferably, the second stripping mouth 51 ringwise.The stripping mouth of annular can use binding clip to connect ground wire or other cables.
Preferably, protective jacket 40 comprises body 41, and body 41 ringwise; Body 41 has the opening 411 that connects vertically two ends.Preferably, protective jacket 40 also comprises afterbody 42, and afterbody 42 is connected with body 41.As shown in Figure 3, the annular body 41 of protective jacket 40 can wrap the first stripping mouth 31 and the second stripping mouth 51, and protective jacket 40 is dismantled or is connected with each cable by opening 411.Protective jacket 40 also has the afterbody 42 being connected with body 41, and like this, staff can grip afterbody 42, and protective jacket 40 is disassembled from the first stripping mouth 31 and the second stripping mouth 51.Preferably, afterbody 42 is half bodys that are connected with body 41.
Preferably, protective jacket 40 is made up of electro-insulating rubber, utilizes the insulativity of rubber to the first stripping mouth 31 and the second stripping mouthful 51 insulated enclosures.In addition, because rubber has elasticity, make protective jacket 40 can be arranged on easily the first stripping mouth 31 and the second stripping mouth 51, or from the first stripping mouth 31 and the second stripping mouthful 51 dismountings.Preferably, can also, in the outer felt of protective jacket 40 around insulating tape, to improve the insulativity of batch meter, and then improve security.
According to a second aspect of the invention, provide a kind of ground wire hooking method of batch meter, first, provide above-mentioned batch meter; Secondly, remove the first protective jacket 40 of shelling on mouth 31 of the multiple input cables 30 that are arranged on batch meter, to expose the first stripping mouth 31; Finally, on the first stripping mouth 31, connect ground wire.The ground wire hooking method of this batch meter only needs the knife switch of the input end of the current transformer that disconnects batch meter, and do not need to disconnect the high pressure fall insurance device of transformer input end, reduce the operation to high pressure fall insurance device, also reduced staff's working strength.
According to a third aspect of the present invention, provide a kind of replacing method of current transformer of batch meter, first, provide above-mentioned batch meter; Secondly, remove the first protective jacket 40 of shelling on mouth 31 of the multiple input cables 30 that are arranged on batch meter, to expose the first stripping mouth 31; Afterwards, on the first stripping mouth 31, connect ground wire; Then, change the current transformer 20 in batch meter; Finally, remove ground wire, and reinstall described protective jacket 40 at first stripping mouthful 31 places of input cable 30.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a batch meter, is characterized in that, described batch meter comprises:
Gauging table (10);
Multiple current transformers (20), are electrically connected with described gauging table (10);
Multiple input cables (30), described multiple input cables (30) are electrically connected correspondingly with the input end of described multiple current transformers (20); On each described input cable (30), be provided with the first stripping mouthful (31) forming by stripping insulation layer;
Multiple protective jackets (40), the first stripping mouthful (31) of each described input cable (30) locates to be removably provided with a described protective jacket (40).
2. batch meter according to claim 1, is characterized in that, described batch meter also comprises zero line cable (50), and described zero line cable (50) is electrically connected with described gauging table (10); On the insulation course of described zero line cable (50), be provided with the second stripping mouthful (51) forming by stripping insulation layer, described the second stripping mouthful (51) locates to be removably provided with a described protective jacket (40).
3. batch meter according to claim 1, is characterized in that, described the first stripping mouthful (31) ringwise.
4. batch meter according to claim 2, is characterized in that, described the second stripping mouthful (51) ringwise.
5. batch meter according to claim 1 and 2, is characterized in that, described protective jacket (40) comprises body (41), and described body (41) ringwise; Described body (41) has the opening (411) that connects vertically two ends.
6. batch meter according to claim 5, is characterized in that, described protective jacket (40) also comprises afterbody (42), and described afterbody (42) is connected with described body (41).
7. batch meter according to claim 5, is characterized in that, described protective jacket (40) is made up of electro-insulating rubber.
8. a ground wire hooking method for batch meter, is characterized in that,
Batch meter described in any one in claim 1 to 7 is provided;
Dismounting is arranged on the first protective jacket (40) of shelling on mouthful (31) of multiple input cables (30) of described batch meter, to expose described the first stripping mouthful (31);
At the upper ground wire that connects of described the first stripping mouthful (31).
9. a replacing method for the current transformer of batch meter, is characterized in that,
Batch meter described in any one in claim 1 to 7 is provided;
Dismounting is arranged on the first protective jacket (40) of shelling on mouthful (31) of multiple input cables (30) of described batch meter, to expose described the first stripping mouthful (31);
At the upper ground wire that connects of described the first stripping mouthful (31);
Change the current transformer (20) in described batch meter;
Remove described ground wire, and locate to reinstall described protective jacket (40) in the first stripping mouthful (31) of described input cable (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496601.7A CN103852609B (en) | 2012-11-28 | 2012-11-28 | Metering box, ground wire hitching method of the metering box, and replacement method of current transformer of the metering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496601.7A CN103852609B (en) | 2012-11-28 | 2012-11-28 | Metering box, ground wire hitching method of the metering box, and replacement method of current transformer of the metering box |
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| Publication Number | Publication Date |
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| CN103852609A true CN103852609A (en) | 2014-06-11 |
| CN103852609B CN103852609B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210496601.7A Active CN103852609B (en) | 2012-11-28 | 2012-11-28 | Metering box, ground wire hitching method of the metering box, and replacement method of current transformer of the metering box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388341A (en) * | 2015-11-27 | 2016-03-09 | 国网北京市电力公司 | Metering box |
| CN107085195A (en) * | 2017-04-14 | 2017-08-22 | 中国电力科学研究院 | The method and system that a kind of transformer and electric energy meter to plant stand is matched |
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| CN2819569Y (en) * | 2005-06-14 | 2006-09-20 | 杨伟斌 | Cable protective cover |
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| CN201656252U (en) * | 2010-01-30 | 2010-11-24 | 许罡 | 10KV incoming line-protecting and electric energy-metering comprehensive switch cabinet |
| CN201804029U (en) * | 2010-09-24 | 2011-04-20 | 陈家斌 | 220V and 380V charged assembly and disassembly electric energy metering device |
| CN202360086U (en) * | 2011-11-17 | 2012-08-01 | 森松(江苏)海油工程装备有限公司 | Protection structure for gas-liquid separator instrument |
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2012
- 2012-11-28 CN CN201210496601.7A patent/CN103852609B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2819569Y (en) * | 2005-06-14 | 2006-09-20 | 杨伟斌 | Cable protective cover |
| CN201311441Y (en) * | 2008-11-18 | 2009-09-16 | 河南省电力公司南阳供电公司 | External anti-electricity-theft device of high pressure metering tank |
| CN201656252U (en) * | 2010-01-30 | 2010-11-24 | 许罡 | 10KV incoming line-protecting and electric energy-metering comprehensive switch cabinet |
| CN201804029U (en) * | 2010-09-24 | 2011-04-20 | 陈家斌 | 220V and 380V charged assembly and disassembly electric energy metering device |
| CN202360086U (en) * | 2011-11-17 | 2012-08-01 | 森松(江苏)海油工程装备有限公司 | Protection structure for gas-liquid separator instrument |
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| 李廷河等: "穿心电流互感器快速接线法", 《农村电工》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388341A (en) * | 2015-11-27 | 2016-03-09 | 国网北京市电力公司 | Metering box |
| CN107085195A (en) * | 2017-04-14 | 2017-08-22 | 中国电力科学研究院 | The method and system that a kind of transformer and electric energy meter to plant stand is matched |
| CN107085195B (en) * | 2017-04-14 | 2020-12-29 | 中国电力科学研究院 | Method and system for matching mutual inductor and electric energy meter of plant station |
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| Publication number | Publication date |
|---|---|
| CN103852609B (en) | 2017-03-22 |
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