CN104049209A - Portable water resistance type large-current rising device - Google Patents
Portable water resistance type large-current rising device Download PDFInfo
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- CN104049209A CN104049209A CN201410307235.5A CN201410307235A CN104049209A CN 104049209 A CN104049209 A CN 104049209A CN 201410307235 A CN201410307235 A CN 201410307235A CN 104049209 A CN104049209 A CN 104049209A
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- pulley
- vertical beam
- sliding electrode
- fixed electorde
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Abstract
The invention discloses a portable water resistance type large-current rising device which comprises a fixed electrode, a sliding electrode, a sliding electrode support and an adjusting transmission mechanism. The adjusting transmission mechanism comprises a first pulley, a second pulley, an insulated wire and a sliding electrode fixing block, the sliding electrode support comprises a transverse beam, a first vertical beam and a second vertical beam, and the first pulley and the second pulley are respectively installed on the transverse beam; one end of the insulated wire is connected with the middle of the top end of the sliding electrode, and the other end of the insulated wire sequentially passes through the first pulley and the second pulley to be connected with the top end of the sliding electrode fixing block; the sliding electrode fixing block is located outside the fixed electrode. The portable water resistance type large-current rising device is suitable for power system relay protection alternating and direct current large-current testing, and the rising device is high in output power, reliable in movement and small in discrete value in field calibration.
Description
Technical field
The present invention relates to a kind of current lifting device; be specifically related to the large electric current current lifting device of a kind of Portable water resistor-type, be applicable to the series test of DC Additional Magnetic Features of relay protection of power system differential protection relay BCH-2 type and the periodic survey of user's distribution substation field adjustable measuring current inverse time-lag relay series.
Background technology
At present; in 10 kilovolts of old-fashioned transformer stations, (substation transformer more than 400KVA) relay protection extensively adopts GL type induction type current relay; double as excess current and current quick; and operating power adopts full alternating current operation mode; generally in actual field verification adopt single-phase relay protection check instrument, the impact of little due to output power of heavy current impact transient process, often shake GL type relay outlet contact; it is unreliable that action delays, and data discrete value is larger.
In the protection of 35 kilovolts and following main transformer differential; often adopt differential electromagnetic type relay BCH-2, in its verification project DC Additional Magnetic Features checking procedure, the rheostat that conventional rated current is 5A carries out DC current regulator; its capacity is little, and thermal stability does not reach requirement.
Conventional rheostat is connected on the power that can not bear the above electric current of 5A in circuit, is not suitable for relay protection of power system AC and DC high-current test.
Summary of the invention
Object of the present invention; in order to address the above problem, provide exactly a kind of Portable water resistor-type large electric current current lifting device; the testing current that is applicable to the large electric current of relay protection of power system AC and DC and is 0-100A is required; at the scene in verification; this current lifting device output power is large; reliable in action; discrete value is less; meet the requirement of portion's version rules, little, the resistance to electric power of volume is strong, easy to use, the electrodeless adjustment of output current, Current rise steadily, large, the reliable operation, easy to operate and safe of power variation range.
The object of the present invention is achieved like this:
The large electric current current lifting device of a kind of Portable water resistor-type of the present invention, comprise fixed electorde, sliding electrode, sliding electrode support and adjusting transmission mechanism, described adjusting transmission mechanism comprises the first pulley, the second pulley, insulated conductor and sliding electrode fixed block, wherein:
Described fixed electorde is barrel-shaped, and material is aluminium, and the upper edge of this fixed electorde arranges the first electrode terminal, and the outside surface of the bottom of described fixed electorde covers insulating mat, the outer ring socket insulation sleeve of described fixed electorde;
The material of described sliding electrode is copper coin, is vertically installed in the inside of described fixed electorde, the top of this sliding electrode shape that is rectangle, and the bottom of this sliding electrode is inverted triangle shape, and the top of described sliding electrode arranges the second electrode terminal;
Described sliding electrode support comprises crossbeam, the first vertical beam and the second vertical beam, described the first vertical beam and the second vertical beam are vertically installed in described fixed electorde, and the top of the top of described the first vertical beam and the second vertical beam is respectively higher than the top of described fixed electorde, described the first vertical beam and the second vertical beam are parallel to each other, described crossbeam is connected across the top of the first vertical beam and the second vertical beam, and the length of described crossbeam is greater than the distance between described the first vertical beam and the second vertical beam, a groove is vertically offered respectively in the inner side of the inner side of described the first vertical beam and described the second vertical beam, the both sides on the top of described sliding electrode can slide up and down to be connected in two described grooves correspondingly,
Described the first pulley and the second pulley are arranged on respectively on described crossbeam, described the first pulley and the second pulley in the same horizontal line, and described the first pulley be positioned at described sliding electrode directly over;
One end of described insulated conductor is connected with the centre on the top of described sliding electrode, and the other end passes described the first pulley and is connected with the top of described sliding electrode fixed block after the second pulley successively;
Described sliding electrode fixed block is positioned at the outside of described fixed electorde.
The above-mentioned large electric current current lifting device of a kind of Portable water resistor-type, wherein, the thickness of described fixed electorde is 1mm, external diameter is 300mm, is highly 400mm.
The above-mentioned large electric current current lifting device of a kind of Portable water resistor-type, wherein, the top of the top of described the first vertical beam and the second vertical beam is all than the high 170mm in the top of described fixed electorde.
The above-mentioned large electric current current lifting device of a kind of Portable water resistor-type, wherein, on described crossbeam, offer two pulley mounting holes, described two pulley mounting holes in the same horizontal line, described in one of them, pulley mounting hole site is directly over described sliding electrode, described the first pulley is arranged in this pulley mounting hole, and described the second pulley is arranged on described in another in pulley mounting hole.
The large electric current current lifting device of Portable water resistor-type of the present invention, adopt water (conductivity size is adjustable) as medium, by regulating the long-pending size of electrode and water engaging surface to change the impedance between electrode and water, thereby regulate the size of electric current, being applicable to relay protection of power system hands over, D.C. high-current test is required, be particularly useful for the series test (D.C. high-current) of DC Additional Magnetic Features of relay protection of power system differential protection relay BCH-2 type and the periodic survey (AC great current) of user's distribution substation field adjustable measuring current inverse time-lag relay series, at the scene in verification, this current lifting device output power is large, reliable in action, discrete value is less, meet the requirement of portion's version rules, and the large electric current current lifting device of Portable water resistor-type of the present invention volume is little, resistance to electric power is strong, easy to use, the electrodeless adjustment of output current, Current rise is steady, power variation range is large, reliable operation, easy to operate and safe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is front view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1 and Fig. 2, there is shown the large electric current current lifting device of Portable water resistor-type of the present invention, comprise fixed electorde 1, sliding electrode 2, sliding electrode support 3 and adjusting transmission mechanism, adjusting transmission mechanism comprises the first pulley 4, the second pulley 5, insulated conductor 6 and sliding electrode fixed block 7.
Fixed electorde 1 is barrel-shaped, and material is aluminium, by aluminium sheet, is made, the upper edge of this fixed electorde 1 arranges the first electrode terminal 11, and the outside surface of the bottom of fixed electorde 1 covers insulating mat 13, in case short circuit, the outer ring socket insulation sleeve 12 of fixed electorde, meets the insulation of I class; The material of sliding electrode 2 is copper coin, is vertically installed in the inside of fixed electorde 1, the top 21 of this sliding electrode shape that is rectangle, and the bottom 22 of this sliding electrode is inverted triangle shape, and the top 21 of sliding electrode arranges the second electrode terminal 23.
Sliding electrode support 3 comprises crossbeam 31, the first vertical beam 32 and the second vertical beam 33, the first vertical beam 32 and the second vertical beam 33 are vertically installed in fixed electorde 1, and the top of the top of the first vertical beam 32 and the second vertical beam 33 is respectively higher than the top of fixed electorde 1, and the first vertical beam 32 and the second vertical beam 33 are parallel to each other; Crossbeam 31 is connected across the top of the first vertical beam 32 and the second vertical beam 33, and the length of crossbeam 31 is greater than the distance between the first vertical beam 32 and the second vertical beam 33, a groove is vertically offered respectively in the inner side of the inner side of the first vertical beam 31 and the second vertical beam 32, and the both sides on the top 21 of sliding electrode can slide up and down to be connected in two grooves correspondingly.
The first pulley 4 and the second pulley 5 are arranged on respectively on crossbeam 31, the first pulley 4 and the second pulley 5 in the same horizontal line, and the first pulley 4 be positioned at sliding electrode 2 directly over; One end of insulated conductor 6 is connected with the centre on the top of sliding electrode 2, and the other end is connected with the top of sliding electrode fixed block 7 with after the second pulley 5 through the first pulley 4 successively; Sliding electrode fixed block 7 is positioned at the outside of fixed electorde 1.
Preferably, the aluminium sheet that fixed electorde 1 is 1mm by thickness is made into the drum that external diameter is 300mm, and the thickness of fixed electorde 1 is 1mm, and external diameter is 300mm.The height of fixed electorde 1 is 400mm.The top of the top of the first vertical beam 32 and the second vertical beam 33 is all than the high 170mm in the top of described fixed electorde.
Further, on crossbeam 31, offer two pulley mounting holes, in the same horizontal line, one of them pulley mounting hole site is directly over sliding electrode 2 for two pulley mounting holes, the first pulley 4 is arranged in this pulley mounting hole, and the second pulley 5 is arranged in another pulley mounting hole.
When using the large electric current current lifting device of Portable water resistor-type of the present invention, with the first electrode terminal 11 and the external testing tool of the second electrode terminal 23, the water (conductivity size is adjustable) of take is medium, in barrel-shaped fixed electorde 1, put into pure water, and in pure water, add a little sodium chloride solution to adjust pure water conductivity size, mobile insulated conductor 6, sliding electrode 2 is slided up and down along the groove of the inner side of the first vertical beam 31 and the inner side of the second vertical beam 32, by regulating the long-pending size of electrode and water engaging surface to change the impedance between electrode and water, thereby reach, regulate load current value size, while doing to exchange current lifting device test, mains side is installed the isolating transformer that no-load voltage ratio is 1, further increase security.
In sum, the large electric current current lifting device of Portable water resistor-type of the present invention is applicable to relay protection of power system and hands over, D.C. high-current test is required, be particularly useful for the series test (D.C. high-current) of DC Additional Magnetic Features of relay protection of power system differential protection relay BCH-2 type and the periodic survey (AC great current) of user's distribution substation field adjustable measuring current inverse time-lag relay series, can solve general rheostat (rheostat is to be resistive conductor and can to change contact point with the device of the device formation regulating resistance size of regulating resistance line effective length with the larger wire of resistance) and be connected on the power that can not bear the above electric current of 5A in circuit.This current lifting device also can be used as the current source equipment that industrial and mining enterprises carry out up-flow or temperature rise test.Be equipped with after mutual inductor, can read easily test current value, or coordinate with the single-phase comprehensive checker of relay protection, directly read test current value.
At the scene in verification, this current lifting device output power is large, reliable in action, discrete value is less, meet the requirement of portion's version rules, and little, the resistance to electric power of the large electric current current lifting device of Portable water resistor-type of the present invention volume is strong, easy to use, the electrodeless adjustment of output current, Current rise steadily, large, the reliable operation, easy to operate and safe of power variation range.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (4)
1. the large electric current current lifting device of Portable water resistor-type, it is characterized in that, comprise fixed electorde, sliding electrode, sliding electrode support and adjusting transmission mechanism, described adjusting transmission mechanism comprises the first pulley, the second pulley, insulated conductor and sliding electrode fixed block, wherein:
Described fixed electorde is barrel-shaped, and material is aluminium, and the upper edge of this fixed electorde arranges the first electrode terminal, and the outside surface of the bottom of described fixed electorde covers insulating mat, the outer ring socket insulation sleeve of described fixed electorde;
The material of described sliding electrode is copper coin, is vertically installed in the inside of described fixed electorde, the top of this sliding electrode shape that is rectangle, and the bottom of this sliding electrode is inverted triangle shape, and the top of described sliding electrode arranges the second electrode terminal;
Described sliding electrode support comprises crossbeam, the first vertical beam and the second vertical beam, described the first vertical beam and the second vertical beam are vertically installed in described fixed electorde, and the top of the top of described the first vertical beam and the second vertical beam is respectively higher than the top of described fixed electorde, described the first vertical beam and the second vertical beam are parallel to each other, described crossbeam is connected across the top of the first vertical beam and the second vertical beam, and the length of described crossbeam is greater than the distance between described the first vertical beam and the second vertical beam, a groove is vertically offered respectively in the inner side of the inner side of described the first vertical beam and described the second vertical beam, the both sides on the top of described sliding electrode can slide up and down to be connected in two described grooves correspondingly,
Described the first pulley and the second pulley are arranged on respectively on described crossbeam, described the first pulley and the second pulley in the same horizontal line, and described the first pulley be positioned at described sliding electrode directly over;
One end of described insulated conductor is connected with the centre on the top of described sliding electrode, and the other end passes described the first pulley and is connected with the top of described sliding electrode fixed block after the second pulley successively;
Described sliding electrode fixed block is positioned at the outside of described fixed electorde.
2. the large electric current current lifting device of a kind of Portable water resistor-type as claimed in claim 1, is characterized in that, the thickness of described fixed electorde is 1mm, and external diameter is 300mm, is highly 400mm.
3. the large electric current current lifting device of a kind of Portable water resistor-type as claimed in claim 2, is characterized in that, the top of the top of described the first vertical beam and the second vertical beam is all than the high 170mm in the top of described fixed electorde.
4. the large electric current current lifting device of a kind of Portable water resistor-type as claimed in claim 1, it is characterized in that, on described crossbeam, offer two pulley mounting holes, described two pulley mounting holes in the same horizontal line, described in one of them, pulley mounting hole site is directly over described sliding electrode, described the first pulley is arranged in this pulley mounting hole, and described the second pulley is arranged on described in another in pulley mounting hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410307235.5A CN104049209B (en) | 2014-06-30 | 2014-06-30 | The large electric current current lifting device of a kind of Portable water resistor-type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410307235.5A CN104049209B (en) | 2014-06-30 | 2014-06-30 | The large electric current current lifting device of a kind of Portable water resistor-type |
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| CN104049209A true CN104049209A (en) | 2014-09-17 |
| CN104049209B CN104049209B (en) | 2016-05-18 |
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Citations (8)
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|---|---|---|---|---|
| US4984623A (en) * | 1988-07-11 | 1991-01-15 | Kouken Co., Ltd. | Electrode water circulation and processing system and hooded radiator for water rheostat |
| JPH0651035A (en) * | 1992-07-30 | 1994-02-25 | Mitsubishi Electric Corp | Advancing minor current testing device |
| CN2365746Y (en) * | 1999-03-03 | 2000-02-23 | 薛军 | Induction voltage regulating integral apparatus for test |
| CN201440143U (en) * | 2009-03-26 | 2010-04-21 | 杭州之江开关股份有限公司 | High-current test outlet row clamping mechanism of breaker |
| CN102540035A (en) * | 2010-12-28 | 2012-07-04 | 苏州华电电气股份有限公司 | Comprehensive direct-current high-voltage test device for internal water cooling generator |
| CN202502204U (en) * | 2012-03-25 | 2012-10-24 | 上海市电力公司 | GIS internal discharge test detection system |
| CN102798775A (en) * | 2012-06-15 | 2012-11-28 | 中国电力科学研究院 | Large-current impact generation system and test method thereof |
| CN204044319U (en) * | 2014-06-30 | 2014-12-24 | 国网上海市电力公司 | A kind of Portable water resistor-type big current current lifting device |
-
2014
- 2014-06-30 CN CN201410307235.5A patent/CN104049209B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984623A (en) * | 1988-07-11 | 1991-01-15 | Kouken Co., Ltd. | Electrode water circulation and processing system and hooded radiator for water rheostat |
| JPH0651035A (en) * | 1992-07-30 | 1994-02-25 | Mitsubishi Electric Corp | Advancing minor current testing device |
| CN2365746Y (en) * | 1999-03-03 | 2000-02-23 | 薛军 | Induction voltage regulating integral apparatus for test |
| CN201440143U (en) * | 2009-03-26 | 2010-04-21 | 杭州之江开关股份有限公司 | High-current test outlet row clamping mechanism of breaker |
| CN102540035A (en) * | 2010-12-28 | 2012-07-04 | 苏州华电电气股份有限公司 | Comprehensive direct-current high-voltage test device for internal water cooling generator |
| CN202502204U (en) * | 2012-03-25 | 2012-10-24 | 上海市电力公司 | GIS internal discharge test detection system |
| CN102798775A (en) * | 2012-06-15 | 2012-11-28 | 中国电力科学研究院 | Large-current impact generation system and test method thereof |
| CN204044319U (en) * | 2014-06-30 | 2014-12-24 | 国网上海市电力公司 | A kind of Portable water resistor-type big current current lifting device |
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| CN104049209B (en) | 2016-05-18 |
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