CN205539078U - Alternating current -direct current voltage secondary circuit and test test device and switching cardboard thereof - Google Patents
Alternating current -direct current voltage secondary circuit and test test device and switching cardboard thereof Download PDFInfo
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- CN205539078U CN205539078U CN201620389424.6U CN201620389424U CN205539078U CN 205539078 U CN205539078 U CN 205539078U CN 201620389424 U CN201620389424 U CN 201620389424U CN 205539078 U CN205539078 U CN 205539078U
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- air switch
- secondary circuit
- conductive contact
- switching
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000003556 assay Methods 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 3
- 238000013522 software testing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an alternating current -direct current voltage secondary circuit and test test device and switching cardboard thereof, the cardboard of should transferring include fixed connection to the insulating clamp plate at air switch top, and insulating clamp plate has the window around air switch's hand brake district, is equipped with a plurality of conductive contacts on the insulating clamp plate, screw one -to -one ground electrical contact in a plurality of handle holes of a plurality of conductive contacts and air switch's wiring operating area. The application of above -mentioned switching cardboard thoroughly changes traditional secondary circuit test mode, can shorten test time, improves efficiency of software testing. The switching cardboard possesses portable, easy operation, non -maintaining, can adapt to the characteristics of the applied environment of various complicacies, has reduced the operation degree of difficulty when working a telephone switchboard from air switch by a wide margin.
Description
Technical field
This utility model relates to a kind of combined-voltage secondary circuit and tester for testing thereof and for air switch
Switching clamp.
Background technology
Voltage transformer is the low-voltage equipment being converted in secondary circuit by the high voltage in primary circuit, at power supply row
Industry is usually used in providing power supply for relay protection and automatic safety device.In day-to-day operation, need to prevent secondary loop short circuit and
Secondary circuit is to primary circuit reverse charge, the most accidents caused.
When secondary circuit is tested, need to access the signal of test to secondary circuit, in order to prevent reverse charge,
Bus arrangement mode is that the electrical schematic diagram of double bus scheme is as it is shown in figure 1, include first group of voltage transformer 1 ', second group of electricity
Pressure transformer 2 ', bus switch switch 3 ', terminal block 4 ', protection device 6 ' and are connected between protection device and terminal block
Air switch 5 '.
Air switch Main Function in secondary circuit has: (1) secondary circuit be short-circuited etc. fault time, can reliably jump
Open, the trouble point on isolation secondary circuit, shield；(2), when having work on secondary circuit, air should be pulled open before work
Switch, the secondary circuit after air switch lower port is engaged in service work, to prevent voltage reverse charge, plays and voltage
The effect of this body loop of transformer isolation.
The test method during test of conventional voltage secondary circuit has two kinds:
The first is as in figure 2 it is shown, remove wiring ZKK1, ZKK3, ZKK5 of terminal block up to air switch upper port, air
Switch is maintained at conjunction position, and test simulation amount testing wire clamp, on ZKK1, ZKK3, ZKK5, utilizes analog quantity calibration equipment 7 ' to add
Analog quantity voltage.
The second is as it is shown on figure 3, remove air switch lower port to wiring ZKK2, ZKK4, ZKK6 of protection device, air
Switch is maintained at a point position, and test simulation amount testing wire clamp, on ZKK2, ZKK4, ZKK6, adds analog quantity voltage.
The general character defect of above two mode:
(1) operating process is loaded down with trivial details, expends the time long.Especially in multi-compartment concentrates maintenance, release, recover secondary line and will account for
With substantial amounts of effective repair time.
(2) in process of the test, the situations such as the too small short circuit in gap between mis-wired, the end of a thread, wiring loosen easily occurring, impact is adjusted
Equipment and personal safety in examination.
(3), after off-test, when recovering secondary line, easily there are the problems such as wiring recovery is wrong, wiring is the tightest, these problems
It is difficult to find before power transmission, broken voltage line, the problem such as anti-phase will occur after equipment runs, affect equipment reliability service, sternly
Equipment is caused to repeat to have a power failure during weight.
Chinese patent literature CN 203310863 U provides a kind of test clamp, by secondary circuit and the mutual inductance of transformer
Device disconnects and accesses stimulus to described secondary circuit, including the pincers on the air switch for being clamped in described secondary circuit
Body and fix the conductive contact being connected with described caliper.
During implementing secondary circuit test, present inventor have discovered that an above-mentioned test clamp can only carry one
Conductive contact, single test need three above-mentioned test clamps, because air switch own vol is less, block successively three above-mentioned
Test clamp has certain operation easier, if process of the test there being vibrations clamp the most easily come off, and conductive contact and air
The end opening contact float inconvenient operation of switch.Await this is improved.
Utility model content
The purpose of this utility model is to provide a kind of switching clamp for air switch, and the purpose of this utility model is also
Being to provide a kind of combined-voltage secondary circuit tester for testing, the purpose of this utility model also resides in a kind of power transformation of offer
Stand combined-voltage secondary circuit, to reduce from air switch operation easier during wiring.
To this end, on the one hand this utility model provides a kind of switching clamp for air switch, including being fixedly attached to
The insulating press boards at air switch top, insulating press boards has the window in the rim brake district around air switch, and insulating press boards is provided with
Multiple conductive contacts, multiple conductive contacts for the screw one a pair in multiple handle holes in the patching operations district of air switch
Should ground electrical contact.
Further, above-mentioned window and the surrounding sidewall tight fit in rim brake district.
Further, above-mentioned conductive contact is embedded on insulating press boards, and the upper surface of conductive contact is less than insulating press boards
Surface.
Further, above-mentioned air switch is threephase switch, and insulating press boards is provided with three conductive contacts.
Further, above-mentioned insulating press boards patching operations district, side in the patching operations district, both sides of air switch covers
Extend.
Further, above-mentioned each conductive contact has for the plug jack from the downward grafting of the end face of air switch.
According to another aspect of the present utility model, it is provided that a kind of combined-voltage secondary circuit tester for testing, bag
Include the air switch on combined-voltage secondary circuit, be additionally included in air switch top arrange according to described above
Combined-voltage secondary circuit test adaptor clamp.
Further, above-mentioned air switch and the fixing connection of switching clamp.
Further, above-mentioned Special testing device also includes analog quantity calibration equipment, the plug of analog quantity calibration equipment with
Conductive contact grafting.
This utility model additionally provides a kind of transformer station combined-voltage secondary circuit, including first group of voltage transformer,
Second group of voltage transformer, bus switch switch, terminal block, protection device and are connected between protection device and terminal block
Assay device, assay device is according to combined-voltage secondary circuit tester for testing described above, clamp of transferring
Conductive contact and air switch protection device side patching operations district handle hole in screw electrical contact.
In switching clamp of the present utility model, three conductive contacts are arranged on same insulating press boards, this switching clamp
On conductive contact and air switch end face side patching operations district handle hole in screw electrical contact, not only structure is significantly
Simply, compared with the contact of the end opening of the air switch of prior art, operation when significantly reducing wiring from air switch is difficult
Degree.
In addition to objects, features and advantages described above, this utility model also has other purpose, feature and excellent
Point.Below with reference to figure, this utility model is described in further detail.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, this practicality
Novel schematic description and description is used for explaining this utility model, is not intended that improper restriction of the present utility model.
In the accompanying drawings:
Fig. 1 shows the circuit interconnect pattern of the combined-voltage secondary circuit of prior art；
Fig. 2 shows the first wiring diagram of the test method when combined-voltage secondary circuit of prior art is tested；
Fig. 3 shows the Second Linking Method figure of the test method when combined-voltage secondary circuit of prior art is tested；
Fig. 4 shows the circuit interconnect pattern according to combined-voltage secondary circuit of the present utility model；
Fig. 5 shows the front view according to combined-voltage secondary circuit test adaptor clamp of the present utility model；
Fig. 6 shows the sectional view according to combined-voltage secondary circuit test adaptor clamp of the present utility model；
Fig. 7 shows the schematic diagram according to combined-voltage secondary circuit tester for testing of the present utility model；And
Fig. 8 shows the switching clamp according to combined-voltage secondary circuit tester for testing of the present utility model and sky
Matching relationship schematic diagram between air cock；
Description of reference numerals
1, first group of voltage transformer；2, second group of voltage transformer；
3, bus switching switch；4, terminal block；
5, air switch；6, protection device；
7, analog quantity calibration equipment；8, switching clamp；
51, rim brake district；52, patching operations district；
53, handle hole；54, screw；
81, insulating press boards；82, window；
83, conductive contact；84, jack.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
For solve prior art test clamp pincers be clamped on air switch, the problem of inconvenient operation, this utility model
Combined-voltage secondary circuit test adaptor clamp, as shown in Fig. 5 to Fig. 8, this switching clamp is arranged on the top of air switch 5
Face, the top of air switch 5 includes rim brake district 51 and is positioned at the patching operations district 52 of both sides, described rim brake district, this switching clamp 8
On conductive contact 83 and the screw electrical contact in the handle hole 53 in the patching operations district 52 of air switch end face side, specifically
Ground, this switching clamp 8 includes the insulating press boards 81 being fixedly attached to described air switch 5 top, and described insulating press boards 81 has
Around the window 82 in the rim brake district of described air switch 5, described insulating press boards 81 is in the patching operations district 52 of described air switch 5
Covering and extend, described insulating press boards 81 is provided with multiple conductive contact 83, the plurality of conductive contact 83 and described air switch 5
Patching operations district multiple handle holes 53 in screw 54 make electrical contact with correspondingly.
In switching clamp of the present utility model, three conductive contacts are arranged on same insulating press boards, this switching clamp 8
On conductive contact and air switch end face side patching operations district handle hole in screw electrical contact, not only structure is significantly
Simply, compared with the contact of the end opening of the air switch of prior art, the requirement of operation alignment is significantly reduced.
This utility model gives insulating press boards 81 and is fixed to the preferred means of air switch 5 end face, to simplify insulation
The fixed structure of pressing plate, specifically, window 82 and the surrounding sidewall tight fit in described rim brake district 51, thus extra not increasing
The purpose of fastening is reached in the case of secure component.It is appreciated that on the sidewall of insulating press boards 81 use trip bolt holds out against
Rim brake district 51 surrounding sidewall, it is possible to realize hard-wired purpose, extra benefit is detachable.
This utility model gives conductive contact and is fixed to the preferred means of insulating press boards, to simplify the peace of conductive contact
Dress mode, specifically, conductive contact 83 is embedded on described insulating press boards 81, and the upper surface of described conductive contact 83 is less than described
The surface of insulating press boards 81, to reduce the danger that conductive contact is accidentally contacted.It is highly preferred that can increase lid or plug will lead
Electrical contact covers, and only opens when test, to strengthen safety.
This utility model gives the quick connected mode of analog quantity calibration equipment 7 and conductive contact 83, specifically, respectively
Described conductive contact 83 has the jack 84 for the plug downward grafting of end face from described air switch.So, analog quantity verification
The plug (needle-like) of device 7 position when inserting in jack 84 is stable, it is not necessary to extra ancillary method.
Preferably, air switch is threephase switch, uses 35KV three-phase air switch, insulating press boards 81 in one embodiment
It is provided with three conductive contacts 83.
This utility model additionally provides a kind of combined-voltage secondary circuit tester for testing, as it is shown in fig. 7, it includes
Air switch 5 on combined-voltage secondary circuit and above-mentioned switching clamp 8.
Preferably, described air switch and the fixing connection of described switching clamp, to facilitate test, it is not necessary to peace during test every time
Dress.
Preferably, Special testing device also includes analog quantity calibration equipment 7, the plug of described analog quantity calibration equipment 7 with
The grafting of described conductive contact 83.
This utility model additionally provides a kind of transformer station combined-voltage secondary circuit, as shown in Figure 4, including first group of electricity
Pressure 1, second group of voltage transformer 2 of transformer, bus switch switch 3, terminal block 4, protection device 6 and are connected to protection dress
Putting the assay device between 6 and terminal block 4, described assay device is combined-voltage secondary circuit tester for testing, and this is special
Transfer clamp 8 and air switch 5 is included, the conductive contact 83 of described switching clamp 8 and described air switch 5 with assay device
Screw 54 in the handle hole 53 in the patching operations district 52 of protection device side makes electrical contact with.
The application of above-mentioned switching clamp thoroughly changes traditional secondary circuit test job pattern, it is possible to when shortening test
Between, improve testing efficiency.Reduce cost of human resources.The switching clamp developed possesses operation portable, easy, non-maintaining, it is possible to suitable
Answer the feature of the applied environment of various complexity.Solve the serious consequence that field personnel brings due to operational error, turn simultaneously
Connect after clamp uses and will not produce industrial waste, and the problem of waste of raw materials, there is good social benefit.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. the switching clamp for air switch, it is characterised in that include being fixedly attached to described air switch top
Insulating press boards, described insulating press boards has the window in the rim brake district around described air switch, and described insulating press boards is provided with many
Individual conductive contact, the plurality of conductive contact is used for and the screw in multiple handle holes in the patching operations district of described air switch
Make electrical contact with correspondingly.
Switching clamp for air switch the most according to claim 1, it is characterised in that described window and described rim brake
The surrounding sidewall tight fit in district.
Switching clamp for air switch the most according to claim 1, it is characterised in that described conductive contact is embedded
On described insulating press boards, the upper surface of described conductive contact is less than the surface of described insulating press boards.
Switching clamp for air switch the most according to claim 1, it is characterised in that described air switch is three-phase
Switch, described insulating press boards is provided with three conductive contacts.
Switching clamp for air switch the most according to claim 1, it is characterised in that described insulating press boards is described
Patching operations district, side in the patching operations district, both sides of air switch covers and extends.
Switching clamp for air switch the most according to any one of claim 1 to 5, it is characterised in that each described
Conductive contact has the jack for the plug downward grafting of end face from described air switch.
7. a combined-voltage secondary circuit tester for testing, the air being included on combined-voltage secondary circuit is opened
Close, it is characterised in that be additionally included in the use according to any one of claim 1 to 6 that described air switch top is arranged
Switching clamp in air switch.
Combined-voltage secondary circuit tester for testing the most according to claim 7, it is characterised in that described air is opened
Close and the fixing connection of described switching clamp.
Combined-voltage secondary circuit tester for testing the most according to claim 7, it is characterised in that also include simulation
Amount calibration equipment, the plug of described analog quantity calibration equipment and described conductive contact grafting.
10. transformer station's combined-voltage secondary circuit, including first group of voltage transformer, second group of voltage transformer, mother
Line switching switch, terminal block, protection device and the assay device being connected between protection device and terminal block, its feature exists
In, described assay device is to fill according to the combined-voltage secondary circuit testing experiment according to any one of claim 7 to 9
Put, in the handle hole in the patching operations district of the conductive contact of described switching clamp and the protection device side of described air switch
Screw makes electrical contact with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620389424.6U CN205539078U (en) | 2016-05-02 | 2016-05-02 | Alternating current -direct current voltage secondary circuit and test test device and switching cardboard thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620389424.6U CN205539078U (en) | 2016-05-02 | 2016-05-02 | Alternating current -direct current voltage secondary circuit and test test device and switching cardboard thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539078U true CN205539078U (en) | 2016-08-31 |
Family
ID=56795510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620389424.6U Active CN205539078U (en) | 2016-05-02 | 2016-05-02 | Alternating current -direct current voltage secondary circuit and test test device and switching cardboard thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710098A (en) * | 2018-05-18 | 2018-10-26 | 深圳供电局有限公司 | A kind of secondary loop of mutual inductor load detection method |
| CN112397932A (en) * | 2020-11-16 | 2021-02-23 | 南方电网调峰调频发电有限公司检修试验分公司 | Sealing structure suitable for relay protection alternating current secondary circuit of energy storage power station |
-
2016
- 2016-05-02 CN CN201620389424.6U patent/CN205539078U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710098A (en) * | 2018-05-18 | 2018-10-26 | 深圳供电局有限公司 | A kind of secondary loop of mutual inductor load detection method |
| CN108710098B (en) * | 2018-05-18 | 2021-02-19 | 深圳供电局有限公司 | Current transformer secondary circuit load detection method |
| CN112397932A (en) * | 2020-11-16 | 2021-02-23 | 南方电网调峰调频发电有限公司检修试验分公司 | Sealing structure suitable for relay protection alternating current secondary circuit of energy storage power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tang Jun Inventor after: Tang Jun Inventor after: Wang Qin Inventor after: Fu Hao Inventor after: Zhang Yi Inventor after: Qin Peng Inventor after: Ding Chaoqian Inventor after: Zhong Sheng Inventor before: Tang Jun Inventor before: Wang Qin Inventor before: Fu Hao Inventor before: Zhang Yi Inventor before: Qin Peng Inventor before: Ding Chaoqian Inventor before: Zhong Sheng |
|
| COR | Change of bibliographic data |