CN208127091U - A kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement - Google Patents
A kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement Download PDFInfo
- Publication number
- CN208127091U CN208127091U CN201820570897.5U CN201820570897U CN208127091U CN 208127091 U CN208127091 U CN 208127091U CN 201820570897 U CN201820570897 U CN 201820570897U CN 208127091 U CN208127091 U CN 208127091U
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- CN
- China
- Prior art keywords
- disconnecting link
- counter
- disconnecting
- moving contact
- lightning arrester
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- 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.)
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Abstract
The utility model discloses a kind of star arrangement disconnecting links for counter for lightning arrester charged for replacement, including double moving contact of disconnecting link, double moving contact of disconnecting link are rotatably connected on disconnecting link plate, double moving contact of disconnecting link edges of a knife lower end is electrically connected to two intermediate connection seats, the left and right ends of two intermediate connection seats are connected respectively on connection conductor and ground wire, disconnecting link plate is provided with junction block and two lower junction blocks on two, the left and right ends of junction block are connected respectively to the power end and ground terminal of discharge counter on two, and the left end of two lower junction blocks is connected to ground wire.Three disconnecting links are integrated on a single-pole double throw disconnecting link by the utility model, one output end is hanging, realize that ground terminal and the power end linkage of discharge counter are hanging, efficiently avoid unexpected injury of the issuable Ground Electric Potential Rise to service personnel when lightning arrestor movement, disconnecting link with this configuration, the linkage for realizing disconnecting link one and disconnecting link three, effectively avoids maloperation and electric shock.
Description
Technical field
The utility model belongs to counter device technical field, and in particular to one kind is charged more for counter for lightning arrester
The star arrangement disconnecting link changed.
Background technique
In the power system, the dedicated discharge counter of arrester（Or leakage current monitor, hereinafter referred to as " electric discharge counts
Device " or " counter "）It is widely used.It is found according to the operating experience of many years and statistics, the dedicated electric discharge of arrester in substation
Counter breaks down and the probability of defect is very high, accounts for 90% or more of arrester equipment deficiency sum.
Traditional arrester private counter connection type is to be connected to counter high pressure by lightning arrester insulation pedestal top
End, is grounded, schematic diagram as shown in figure 11 using counter, after defect occurs for the dedicated discharge counter of arrester, maintenance
Personnel, which need to have a power failure arrester, could carry out defect processing to discharge counter to inspecting state, and arrester is often direct
It is connected by conductor with high-pressure section（In addition to most of bus-bar potential transformer units）, therefore, arrester power failure means
The power failure of high-tension line or main transformer unit.
It is linked into the connection line of counter using the single-phase disconnecting link of 3 knives, can be realized the replacement behaviour that do not have a power failure of counter
Make, but the single-phase disconnecting link of 3 knives then may bring puzzlement to service personnel and operations staff in actual operation：What when do not known
Wait which disconnecting link of the operation, there are the risks of maloperation and electric shock in work.
Summary of the invention
The utility model solve the technical issues of be：A kind of star-like cloth for counter for lightning arrester charged for replacement is provided
Disconnecting link is set, avoids maloperation and electric shock risk, effectively to solve above-mentioned problems of the prior art.
The technical solution that the utility model is taken is：A kind of star arrangement for counter for lightning arrester charged for replacement
Disconnecting link, including double moving contact of disconnecting link, double moving contact of disconnecting link are rotatably connected on disconnecting link plate, double moving contact of disconnecting link edges of a knife lower end
Two intermediate connection seats are electrically connected to, the left and right ends of two intermediate connection seats are connected respectively on connection conductor and ground wire, disconnecting link plate
Junction block and two lower junction blocks on two are provided with, the left and right ends of junction block are connected respectively to the power end of discharge counter on two
And ground terminal, the left end of two lower junction blocks are connected to ground wire.
Preferably, the right end of above-mentioned two lower junction blocks is arranged to dielectric support block.
Preferably, above-mentioned disconnecting link plate is bolted to connection on the supporting plate, and support plate is fixedly connected on mounting box 7
It is interior.
The beneficial effects of the utility model：Compared with prior art, three disconnecting links are integrated in a list by the utility model
It is on knife double-throw disconnecting link, one output end is hanging, realize that the ground terminal of discharge counter and power end linkage are hanging, effectively
Avoid unexpected injury of the issuable Ground Electric Potential Rise to service personnel when lightning arrestor movement, disconnecting link with this configuration,
The linkage for realizing disconnecting link one and disconnecting link three, effectively avoids maloperation and electric shock, and the utility model also has that structure is simple, cost
Feature low, easy to operate.
Detailed description of the invention
Fig. 1 is the circuit connection schematic illustration of the utility model；
Fig. 2 is the mounting structure schematic diagram of the utility model；
Fig. 3 is discharge counter operating status catenation principle figure；
Fig. 4 is discharge counter inspecting state catenation principle figure；
Fig. 5 is disconnecting link schematic view of the front view；
Fig. 6 is disconnecting link right side structural representation；
Fig. 7 is discharge counter operating status structural schematic diagram；
Fig. 8 is discharge counter inspecting state structural schematic diagram；
Fig. 9 is that device accesses arrester schematic diagram；
Figure 10 is the mounting structure left view schematic diagram of the utility model；
Figure 11 is existing counter attachment structure schematic diagram.
In figure, 1- discharge counter, 2- disconnecting link one, 3- disconnecting link three, 4- ground wire, 5- connection conductor, 6- disconnecting link two, 7- installation
Box, 8- electric pole, the bis- moving contact of disconnecting link of 9-, 10- disconnecting link plate, two intermediate connection seat of 11-, junction block on 12- two, the lower wiring of 13- two
Seat, 14- insulator foot, 15- arrester, 16- mounting bracket.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment 1：As shown in Figure 1-Figure 11, a kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement,
Star arrangement disconnecting link uses single-pole double throw disconnecting link structure, specifically includes double moving contact of disconnecting link 9, double moving contact of disconnecting link 9 are rotatably
It is connected on the disconnecting link plate 10 of insulation, double 9 edge of a knife lower ends of moving contact of disconnecting link are electrically connected to two intermediate connection seats 11, two intermediate connections
The left and right ends of seat 11 are connected respectively on connection conductor 5 and ground wire 4, and disconnecting link plate 10 is provided on two and connects under junction block 12 and two
Line seat 13, the left and right ends of junction block 12 are connected respectively to the power end and ground terminal of discharge counter 1, two lower junction blocks on two
13 left end is connected to ground wire 4, in inspecting state, is closed double moving contact of disconnecting link 9 downwards, and right end is vacantly not connected to line, realizes
The electric isolution of discharge counter is vacantly placed, and efficiently avoids when lightning arrestor movement issuable Ground Electric Potential Rise to maintenance
The unexpected injury of personnel, double about 9 moving contact of disconnecting link closures are electrically connectable to junction block 12 and two lower junction blocks 13 on two, lead to
The disconnecting link of the structure is crossed, the linkage of disconnecting link one and disconnecting link three is realized, effectively avoids maloperation and electric shock.
Preferably, the right end of above-mentioned two lower junction blocks 13 is arranged to dielectric support block.
Preferably, above-mentioned disconnecting link plate 10 is bolted to connection in support plate 17, and support plate 17 is fixedly connected on peace
In mounted box 7.
Embodiment 2：A kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement, including discharge counter 1,
The power end of discharge counter 1 is connected on connection conductor 5 by disconnecting link 1, and ground terminal is connected to ground wire 4 by disconnecting link 33,
Disconnecting link 26 is connected between ground wire 4 and connection conductor 5, connection conductor 5 is fixedly connected on insulator foot 14, on insulator foot 14
Side is equipped with arrester 15, and insulator foot 14 passes through fixed bracket 16 and is fixedly connected on electric pole 8, and three disconnecting links are arranged, can
The hot line job replacement for realizing counter for lightning arrester, realizes the replacement that do not have a power failure, greatly improves defect expressivity rate, reduces power grid fortune
Row risk.
Preferably, above-mentioned disconnecting link 1, disconnecting link 26 and disconnecting link 33 are fixedly connected in mounting box 7, and mounting box 7 is fixed to be connected
It connects on electric pole 8.
Preferably, above-mentioned disconnecting link 1, disconnecting link 26 and disconnecting link 33 are integrated on a single-pole double throw disconnecting link.
Use principle：1）When counter operates normally, the single-pole double throw disconnecting link of star-star connection is closed a floodgate upwards（Such as Fig. 3
It is shown）, lightning arrester base → 1 → 2 → counter power end → counter ground terminal → 3 → 4 → ground connection forms work and returns at this time
Road；2）When counter needs replacing or overhauls, the single-pole double throw disconnecting link of star-star connection is closed a floodgate downwards（As shown in Figure 4）, this
When the operation of lightning arrester base → 1 → 5 → ground connection, and counter is then completely hanging over the ground, with personnel's operation convenient to overhaul.
Example above description is only a specific implementation of the present invention, the protection scope of the utility model not office
It is limited to this.Be familiar with the those skilled in the art within the technical scope disclosed by the utility model, can easily find variation or
Alternative, these should be covered within the scope of the utility model.For this purpose, the protection scope of the utility model should be with
Subject to the scope of protection of the claims.
Claims (3)
1. a kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement, it is characterised in that：Including the dynamic touching of double-pole lock
Head（9）, double moving contact of disconnecting link（9）It is rotatably connected to disconnecting link plate（10）On, double moving contact of disconnecting link（9）The electrical connection of edge of a knife lower end
To two intermediate connection seats（11）, two intermediate connection seats（11）Left and right ends be connected respectively to connection conductor（5）And ground wire（4）
On, disconnecting link plate（10）It is provided with junction block on two（12）With two lower junction blocks（13）, junction block on two（12）Left and right ends point
Discharge counter is not connected to it（1）Power end and ground terminal, two lower junction blocks（13）Left end be connected to ground wire（4）.
2. a kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement according to claim 1, feature
It is：Two lower junction blocks（13）Right end be arranged to dielectric support block.
3. a kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement according to claim 1, feature
It is：Disconnecting link plate（10）It is bolted to connection in support plate（17）On, support plate（17）It is fixedly connected on mounting box（7）
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820570897.5U CN208127091U (en) | 2018-04-20 | 2018-04-20 | A kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820570897.5U CN208127091U (en) | 2018-04-20 | 2018-04-20 | A kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208127091U true CN208127091U (en) | 2018-11-20 |
Family
ID=64191044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820570897.5U Active CN208127091U (en) | 2018-04-20 | 2018-04-20 | A kind of star arrangement disconnecting link for counter for lightning arrester charged for replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208127091U (en) |
-
2018
- 2018-04-20 CN CN201820570897.5U patent/CN208127091U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |