CN104037629A - Method and tool for detecting insertion depth of handcart type switch cabinet - Google Patents
Method and tool for detecting insertion depth of handcart type switch cabinet Download PDFInfo
- Publication number
- CN104037629A CN104037629A CN201410262152.9A CN201410262152A CN104037629A CN 104037629 A CN104037629 A CN 104037629A CN 201410262152 A CN201410262152 A CN 201410262152A CN 104037629 A CN104037629 A CN 104037629A
- Authority
- CN
- China
- Prior art keywords
- depth
- switch cabinet
- fixed contact
- contact
- degree
- Prior art date
- 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.)
- Granted
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a handcart type switch cabinet of a transformer substation and specifically relates to a method and a tool for detecting insertion depth of a handcart type switch cabinet. The method includes the following steps of disconnecting and grounding a power source of the handcart type switch cabinet; measuring depth B of the end of a fixed contact (1) and the outer edge of a fixed contact seat (3); measuring depth R of a chamfer contact point on a moving contact (4) of the handcart type switch cabinet and the end of the moving contact (4); measuring depth A of the position of a pushed positioning plate (2) and the end of the fixed contact (1); calculating depth L of insertion of the contact point of the moving contact (4) into the fixed contact (1), that is, the depth L=the depth A-the depth B-the depth R. The method and the tool have the advantages of being low in cost, convenient to use, simple in manufacture and structure, reliable in judgment, rapid in operation, measurable and capable of being inserted, saving work time, improving work efficiency and avoiding potential safety hazards.
Description
Technical field
The present invention relates to transformer station's handcart switch cabinet, be specifically related to a kind of Method and kit for that detects handcart switch cabinet insertion depth.
Background technology
KYN28 series central-positioned high-voltage switch cabinet is widely used in 35kV, 10kV distribution system now, the full name of middle-placed switch cabinet is that armored type is removed middle metal enclosed switchgear, its minute three-decker, upper strata is bus and control room (isolation mutually), intermediate layer is breaker chamber, and lower floor is cable vault.In long-term use procedure, we find that the most dangerous fault of this switch is exactly that handcart contact is bad.When contact is bad, can cause heating, local overheating is burnt and is melted, and the problems such as insulator fracture and structure bite, even can develop into power grid accident.Handcart insertion depth is the basis that guarantees the reliable contact of stab contact, and causing reason that stab contact insertion depth is inadequate to comprise that quality with product has much relations, busbar site construction technology improper etc., the major measure of inspection is exactly the insertion depth that checks handcart contact.
And the most frequently used inspection method is that the mode of smearing vaseline is measured its contact insertion depth by platform at present, but in rival car formula switch cabinet contact insertion depth checking process, maintainer finds, by the mode of smearing vaseline, is difficult to accurately judge the real insertion depth of handcart contact.
Summary of the invention
The object of the present invention is to provide a kind of Method and kit for that detects handcart switch cabinet insertion depth, solving existing handcart switch cabinet insertion depth cannot accurately be examined, and easily occurs that loose contact causes the problem of a series of potential safety hazards.
For solving above-mentioned technical problem, the present invention by the following technical solutions: a kind of method that detects handcart switch cabinet insertion depth, comprises the following steps:
Disconnect power supply the ground connection of handcart switch cabinet;
Measure the end of fixed contact and the depth B of fixed contact pedestal outer rim;
Measure chamfering contact point on the moving contact of handcart switch cabinet and and the degree of depth R of moving contact end;
Make a location-plate that can slidably reciprocate on the fixed contact of handcart switch cabinet;
Location-plate is fixed on to the most advanced and sophisticated top of the fixed contact of handcart switch cabinet, the end distance of fixed position and fixed contact is less than 23mm;
The position when moving contact of closed handcart switch cabinet and fixed contact arrive normal work, allows the end promotion location-plate of moving contact move a certain distance;
Open moving contact and the fixed contact of handcart switch cabinet, the degree of depth A of the position after measuring location-plate and being pushed and the end of fixed contact;
By calculating the contact point of moving contact, insert the degree of depth L of fixed contact, i.e. degree of depth L=degree of depth A-depth B-degree of depth R.
Further technical scheme is, the method of measurement of the depth B of the end of described fixed contact and fixed contact pedestal outer rim is: first use horizontal riding in fixed contact pedestal outer rim of ruler, recycle second ruler and measure the vertical range of end to the first ruler of described fixed contact and be depth B;
Chamfering contact point on described moving contact and and the method for measurement of the degree of depth R of moving contact end be: first use horizontal riding on moving contact end of ruler, recycle second ruler and measure the vertical range of chamfering contact point to the first ruler on described moving contact and be degree of depth R;
The method of measurement of the degree of depth A of the position after described location-plate is pushed and the end of fixed contact is: first use horizontal riding in fixed contact pedestal outer rim of ruler, recycle second ruler and measure the vertical range of position to the first ruler after described location-plate is pushed and be degree of depth A.
Further technical scheme is, described location-plate is that the circular cardboard that 1mm, diameter are 100mm forms by thickness, has cross crotch, and become four folding chimbs triangular in shape along cross crotch flange in the center of circular cardboard.
A kind of instrument that detects handcart switch cabinet insertion depth, for slidably reciprocating on the fixed contact of handcart switch cabinet, this instrument is location-plate, location-plate is that the circular cardboard that 1mm, diameter are 100mm forms by thickness, center at circular cardboard has cross crotch, and becomes four folding chimbs triangular in shape along cross crotch flange.
Compared with prior art, the invention has the beneficial effects as follows: there is cost low, easy to use, make simple and easy, simple in structurely, judge reliable, swift to operate, insert and measurable advantage, played the effect of saving the operating time, increase work efficiency and avoid potential safety hazard.
Accompanying drawing explanation
Fig. 1 is fixed contact depth B schematic diagram in a kind of method that detects handcart switch cabinet insertion depth of the present invention.
Fig. 2 is the initial position schematic diagram of location-plate in a kind of method that detects handcart switch cabinet insertion depth of the present invention.
Fig. 3 is the final position schematic diagram of location-plate in a kind of method that detects handcart switch cabinet insertion depth of the present invention.
Fig. 4 is the chamfering contact point degree of depth R schematic diagram of moving contact in a kind of method that detects handcart switch cabinet insertion depth of the present invention.
Fig. 5 is the structural representation of location-plate in a kind of method that detects handcart switch cabinet insertion depth of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1-Fig. 4 shows an a kind of embodiment who detects the method for handcart switch cabinet insertion depth of the present invention: a kind of method that detects handcart switch cabinet insertion depth, comprises the following steps:
Disconnect power supply the ground connection of handcart switch cabinet;
Measure the end of fixed contact 1 and the depth B of fixed contact pedestal 3 outer rims, as shown in Figure 1;
Measure chamfering contact point on the moving contact 4 of handcart switch cabinet and and the degree of depth R of moving contact 4 ends, as shown in Figure 4;
Make a location-plate 2 that can slidably reciprocate on the fixed contact 1 of handcart switch cabinet;
Location-plate is fixed on to the most advanced and sophisticated top of the fixed contact of handcart switch cabinet, the end distance of fixed position and fixed contact 1 is less than 23mm, as shown in Figure 2;
The position when moving contact 4 of closed handcart switch cabinet and fixed contact 1 arrive normal work, allows the end promotion location-plate 2 of moving contact 4 move a certain distance;
Open moving contact 4 and the fixed contact 1 of handcart switch cabinet, measure the degree of depth A of the end of position after location-plate 2 is pushed and fixed contact 1, as shown in Figure 3;
By calculating the contact point of moving contact 4, insert the degree of depth L of fixed contact 1, i.e. degree of depth L=degree of depth A-depth B-degree of depth R.
An a kind of preferred embodiment that detects the method for handcart switch cabinet insertion depth according to the present invention, the method of measurement of the depth B of the end of described fixed contact 1 and fixed contact pedestal 3 outer rims is: first use horizontal riding in fixed contact pedestal 3 outer rims of ruler, recycle second ruler and measure the vertical range of end to the first ruler of described fixed contact 1 and be depth B;
Chamfering contact point on described moving contact 4 and and the method for measurement of the degree of depth R of moving contact 4 ends be: first use horizontal riding on moving contact 4 ends of ruler, recycle second ruler and measure the vertical range of chamfering contact point to the first ruler on described moving contact 4 and be degree of depth R;
The method of measurement of the degree of depth A of the position after described location-plate 2 is pushed and the end of fixed contact 1 is: first use horizontal riding in fixed contact pedestal 3 outer rims of ruler, the vertical range of position to the first ruler after recycling second ruler and measuring described location-plate 2 and be pushed is degree of depth A.
Fig. 5 shows a kind of another preferred embodiment that detects the method for handcart switch cabinet insertion depth of the present invention, described location-plate 2 is that the circular cardboard that 1mm, diameter are 100mm forms by thickness, center at circular cardboard has cross crotch, and becomes four folding chimbs 21 triangular in shape along cross crotch flange.
Fig. 5 also shows an a kind of embodiment who detects the instrument of handcart switch cabinet insertion depth of the present invention: a kind of instrument that detects handcart switch cabinet insertion depth, for slidably reciprocating on the fixed contact 1 of handcart switch cabinet, this instrument is location-plate 2, location-plate 2 is that the circular cardboard that 1mm, diameter are 100mm forms by thickness, center at circular cardboard has cross crotch, and becomes four folding chimbs 21 triangular in shape along cross crotch flange.
Current switch static contact has following sizes: Φ 35 * 78 630A, Φ 49 * 82 1250A, Φ 55 * 82 1600A, Φ 79 * 117 1600A-2000A, Φ 109 * 107 2500A-3150A, Φ 109 * 112 3150A-4000A, can be according to on-the-spot actual fabrication location cardboard, here only with Φ 35 fixed contacts for example.
Although with reference to a plurality of explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and within execution mode will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except distortion that building block and/or layout are carried out and improving, to those skilled in the art, other purposes will be also obvious.
Claims (4)
1. a method that detects handcart switch cabinet insertion depth, is characterized in that: comprise the following steps:
Disconnect power supply the ground connection of handcart switch cabinet;
Measure the end of fixed contact (1) and the depth B of fixed contact pedestal (3) outer rim;
Measure chamfering contact point on the moving contact (4) of handcart switch cabinet and and the degree of depth R of moving contact (4) end;
Make a location-plate (2) that can slidably reciprocate on the fixed contact (1) of handcart switch cabinet;
Location-plate is fixed on to the most advanced and sophisticated top of the fixed contact of handcart switch cabinet, the end distance of fixed position and fixed contact (1) is less than 23mm;
The position when moving contact (4) of closed handcart switch cabinet and fixed contact (1) arrive normal work, allows the end promotion location-plate (2) of moving contact (4) move a certain distance;
Open moving contact (4) and the fixed contact (1) of handcart switch cabinet, measure the degree of depth A of the end of position after location-plate (2) is pushed and fixed contact (1);
By calculating the contact point of moving contact (4), insert the degree of depth L of fixed contact (1), i.e. degree of depth L=degree of depth A-depth B-degree of depth R.
2. a kind of method that detects handcart switch cabinet insertion depth according to claim 1, is characterized in that:
The method of measurement of the depth B of the end of described fixed contact (1) and fixed contact pedestal (3) outer rim is: first use horizontal riding in fixed contact pedestal (3) outer rim of ruler, recycle second ruler and measure the vertical range of end to the first ruler of described fixed contact (1) and be depth B;
Chamfering contact point on described moving contact (4) and and the method for measurement of the degree of depth R of moving contact (4) end be: first use horizontal riding on moving contact (4) end of ruler, recycle second ruler and measure the vertical range of chamfering contact point to the first ruler on described moving contact (4) and be degree of depth R;
The method of measurement of the degree of depth A of the end of the position after described location-plate (2) is pushed and fixed contact (1) is: first use horizontal riding in fixed contact pedestal (3) outer rim of ruler, the vertical range of position to the first ruler after recycling second ruler and measuring described location-plate (2) and be pushed is degree of depth A.
3. a kind of method that detects handcart switch cabinet insertion depth according to claim 1, it is characterized in that: described location-plate (2) is that the circular cardboard that 1mm, diameter are 100mm forms by thickness, center at circular cardboard has cross crotch, and becomes four folding chimbs (21) triangular in shape along cross crotch flange.
4. an instrument that detects handcart switch cabinet insertion depth, for slidably reciprocating on the fixed contact (1) of handcart switch cabinet, it is characterized in that: this instrument is location-plate (2), location-plate (2) is that the circular cardboard that 1mm, diameter are 100mm forms by thickness, center at circular cardboard has cross crotch, and becomes four folding chimbs (21) triangular in shape along cross crotch flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262152.9A CN104037629B (en) | 2014-06-12 | 2014-06-12 | Method and tool for detecting insertion depth of handcart type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262152.9A CN104037629B (en) | 2014-06-12 | 2014-06-12 | Method and tool for detecting insertion depth of handcart type switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104037629A true CN104037629A (en) | 2014-09-10 |
| CN104037629B CN104037629B (en) | 2017-01-18 |
Family
ID=51468301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410262152.9A Active CN104037629B (en) | 2014-06-12 | 2014-06-12 | Method and tool for detecting insertion depth of handcart type switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104037629B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390565A (en) * | 2014-12-09 | 2015-03-04 | 川铁电气（天津）集团有限公司 | Method for measuring contact depth of movable and stationary contacts of breaker handcart |
| CN106839942A (en) * | 2017-01-22 | 2017-06-13 | 国网山东省电力公司乳山市供电公司 | A kind of switch cubicle dynamic/static contact contacts depth measurement device and method |
| CN113765015A (en) * | 2021-08-06 | 2021-12-07 | 华能景泰热电有限公司 | Method for detecting contact state of moving contact and fixed contact of high-voltage switch cabinet trolley |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230974Y (en) * | 1995-09-13 | 1996-07-10 | 天水长城开关厂 | Disconnecting plug contact with function of self-measuring pulling depth |
| JP2000067708A (en) * | 1998-08-13 | 2000-03-03 | Meidensha Corp | Disconnector, ground switch, and disconnector with ground switch |
| CN201803666U (en) * | 2010-09-30 | 2011-04-20 | 南车株洲电机有限公司 | Terminal portion length measurement assembly for stator of high voltage motor |
| CN201846007U (en) * | 2010-10-30 | 2011-05-25 | 肥城市供电公司 | Switch cabinet moving and positioning device of transformer substation |
| CN201847684U (en) * | 2010-11-09 | 2011-06-01 | 李蔚昊 | Body shape parameter measurement equipment |
| CN202994775U (en) * | 2012-12-21 | 2013-06-12 | 上海海洋大学 | Portable water depth and transparency measurement meter |
| CN203550878U (en) * | 2013-11-11 | 2014-04-16 | 山东圣阳电源股份有限公司 | Simple measurement device for effective connection depth of threaded hole |
| CN203932763U (en) * | 2014-06-12 | 2014-11-05 | 国家电网公司 | A kind of instrument that detects handcart switch cabinet insertion depth |
-
2014
- 2014-06-12 CN CN201410262152.9A patent/CN104037629B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230974Y (en) * | 1995-09-13 | 1996-07-10 | 天水长城开关厂 | Disconnecting plug contact with function of self-measuring pulling depth |
| JP2000067708A (en) * | 1998-08-13 | 2000-03-03 | Meidensha Corp | Disconnector, ground switch, and disconnector with ground switch |
| CN201803666U (en) * | 2010-09-30 | 2011-04-20 | 南车株洲电机有限公司 | Terminal portion length measurement assembly for stator of high voltage motor |
| CN201846007U (en) * | 2010-10-30 | 2011-05-25 | 肥城市供电公司 | Switch cabinet moving and positioning device of transformer substation |
| CN201847684U (en) * | 2010-11-09 | 2011-06-01 | 李蔚昊 | Body shape parameter measurement equipment |
| CN202994775U (en) * | 2012-12-21 | 2013-06-12 | 上海海洋大学 | Portable water depth and transparency measurement meter |
| CN203550878U (en) * | 2013-11-11 | 2014-04-16 | 山东圣阳电源股份有限公司 | Simple measurement device for effective connection depth of threaded hole |
| CN203932763U (en) * | 2014-06-12 | 2014-11-05 | 国家电网公司 | A kind of instrument that detects handcart switch cabinet insertion depth |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390565A (en) * | 2014-12-09 | 2015-03-04 | 川铁电气（天津）集团有限公司 | Method for measuring contact depth of movable and stationary contacts of breaker handcart |
| CN106839942A (en) * | 2017-01-22 | 2017-06-13 | 国网山东省电力公司乳山市供电公司 | A kind of switch cubicle dynamic/static contact contacts depth measurement device and method |
| CN106839942B (en) * | 2017-01-22 | 2017-09-22 | 国网山东省电力公司乳山市供电公司 | A kind of switch cubicle dynamic/static contact contact depth measurement device and method |
| CN108050917A (en) * | 2017-01-22 | 2018-05-18 | 国网山东省电力公司乳山市供电公司 | A kind of switchgear dynamic/static contact contacts depth measurement device |
| CN108050917B (en) * | 2017-01-22 | 2019-08-20 | 山东和兑智能科技有限公司 | A kind of switchgear dynamic/static contact contact depth measurement device |
| CN113765015A (en) * | 2021-08-06 | 2021-12-07 | 华能景泰热电有限公司 | Method for detecting contact state of moving contact and fixed contact of high-voltage switch cabinet trolley |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104037629B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3605773A1 (en) | Safe operation method for voltage reduction and arc suppression of ground fault phase of non-effective grounding system | |
| CN106932631A (en) | A kind of bus voltage measurement device set up in single-phase GIS tank bodies blind end | |
| CN102495245A (en) | Withstand voltage test platform and test device for insulation rod | |
| CN104112997B (en) | Close armouring high-voltage switch cubicle handcart formula contact of breaker depth of engagement measuring method | |
| CN104037629A (en) | Method and tool for detecting insertion depth of handcart type switch cabinet | |
| CN104267313A (en) | Micro grid system feeder line fault type distinguishing and fault point positioning method | |
| CN203932763U (en) | A kind of instrument that detects handcart switch cabinet insertion depth | |
| CN207780122U (en) | Nuclear phase assisting device of 10kV Barrow type switchgears | |
| CN201514446U (en) | High-voltage AC/DC test device for environmental monitoring | |
| CN203630175U (en) | Direct-current arc generating apparatus | |
| CN104020343A (en) | High voltage power transmission line live part verification method based on electric field intensity difference distribution curve matching | |
| CN204028135U (en) | The reassembling type verifying attachment of small-sized lightning arrester | |
| CN204333695U (en) | A kind of monotropic of electrical network universal design construction or examination scale | |
| CN103048586B (en) | The verification method of voltage transformer (VT) wiring correctness | |
| CN102565614B (en) | Alternating voltage loop test method | |
| CN103424628A (en) | Method for measuring parallel grid line positive sequence impedance | |
| CN106199361A (en) | A kind of GIS device solid insulation multi-stress aging test platform | |
| CN113156276B (en) | Method for checking and debugging secondary voltage loop of bus alternating-current withstand voltage test of switching equipment | |
| CN105510768A (en) | Trouble shooting method for service live grounding | |
| CN104655940A (en) | 500kV transformer substation power frequency electric field and magnetic field calculation method | |
| CN101344555A (en) | Live-wire examination method of extra-high voltage equipment | |
| CN204789785U (en) | Portable intelligent substation relay protection testing arrangement | |
| Cheng et al. | DC arc-flash testing and analysis at 600 V | |
| CN205429547U (en) | A metering handcart that is arranged in high pressure to put cabinet | |
| CN203687908U (en) | Cart-mode positioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |