CN112260117B - Secondary safety protection method for transformer substation main control room before secondary overhaul and debugging - Google Patents
Secondary safety protection method for transformer substation main control room before secondary overhaul and debugging Download PDFInfo
- Publication number
- CN112260117B CN112260117B CN202011027476.6A CN202011027476A CN112260117B CN 112260117 B CN112260117 B CN 112260117B CN 202011027476 A CN202011027476 A CN 202011027476A CN 112260117 B CN112260117 B CN 112260117B
- Authority
- CN
- China
- Prior art keywords
- protective screen
- isolation cover
- plastic paper
- support flange
- debugging
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 51
- 210000000056 organ Anatomy 0.000 claims abstract description 49
- 229920003023 plastic Polymers 0.000 claims abstract description 44
- 238000002955 isolation Methods 0.000 claims abstract description 42
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 10
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention belongs to the technical field of safety protection of substation master control room transformer substation secondary overhaul operation. The secondary safety protection method before secondary overhaul and debugging of the transformer substation main control room is characterized by comprising the following steps of: 1) Preparing a secondary safety protection tool set, which comprises a protective screen pressing plate isolation cover, a protective screen terminal strip isolation cover and an insulating clamp; the protective screen pressing plate isolation cover comprises a right support flange, transparent organ plastic paper, a left support flange, a fixing piece and a magnet; the protective screen terminal strip isolation cover comprises a lower fixing plate, transparent organ plastic paper, a fixing piece, an upper fixing plate and a clamping plate; the insulation clamp comprises a power wire clamp and a marking device; 2) The magnet of the protective screen pressing plate isolation cover is attracted to the protective screen cabinet; 2 clamping plates of a terminal strip isolation cover of the protection screen are respectively and directly inserted on the terminal strip; and inserting the end head of the power line into the power line clamp. The method is convenient to operate, and can effectively prevent false touch and false operation in the execution work of the secondary safety measures.
Description
Technical Field
The invention belongs to the technical field of safety protection of substation main control room power transformation secondary overhaul operation, and particularly relates to a secondary safety protection method before substation main control room power transformation secondary overhaul debugging. The protection device is suitable for the protection work of secondary safety measures before secondary overhaul and debugging.
Background
The operation and maintenance personnel can isolate operation equipment from maintenance equipment such as red cloth curtain, fence and hanging plate by using obvious 'articles' when performing safety measures, but relay protection personnel do not clearly isolate 'articles', and recording and operating safety measures are usually carried out only by means of secondary work safety measure tickets.
When the screen cabinet of a plurality of protection devices common screen is tested, because of design reasons, two or even a plurality of protection devices are arranged in one protection screen cabinet, and the situation that operation equipment and overhaul equipment are simultaneously arranged in the same screen cabinet can occur when power failure overhaul. For example: the protection screen is shared by a plurality of spaced protection devices, such as: transformer protection screens, bypass protection screens, etc. The relay protection debugging personnel do not have unified and standard measures to isolate secondary equipment such as terminal blocks, pressing plates, secondary wires and the like at maintenance and operation intervals before working, and the debugging personnel have risks of connecting test wires at wrong intervals and operating the pressing plates at wrong intervals due to the fact that the secondary wires and the number pipes are similar and not standard. Meanwhile, when the operation interval and the maintenance interval exist on the same screen cabinet at the same time, if obvious marks are not made, debugging personnel need a large amount of time to check and confirm each time when operating the terminal strip and the pressing plate, so that the risk is increased, and the overall test efficiency is not facilitated.
The safety measures are as follows: the protection work of the secondary safety measures before secondary overhaul and debugging is strictly implemented according to the inspection regulations of the relay protection and power grid safety automatic device, so that false collision and false operation are reduced, and the safe operation of the power grid is ensured. The actual working situation is as follows: the common screen cabinet of the protection device has no obvious safety isolation measure during debugging, and the checking is time-consuming and labor-consuming and is easy to make mistakes. The security measures have no unified flow and specification.
At present, secondary safety measures are not uniformly restrained according to safety measure specifications, very professional safety measure tools are not available, homemade temporary safety measure marks are often used, and although some secondary safety measure sets exist on the market, the secondary safety measure sets are discarded because of more problems in use: 1) The old safety protection tools have excessive types and contents, complex design, heavy materials and inconvenient carrying and use; 2) The quality of the old protective articles is not too high, and the old protective articles are easy to damage; 3) The design concept of the old protective articles is too old, the operation process is complicated, and the practicability is not strong; 4) The old protective tool contains tiny parts, so that the old protective tool is easy to lose; 5) If the old protective tool is not used, homemade temporary safety measures can be used in safety measure execution, so that the safety measure is time-consuming and labor-consuming, and can be discarded after being used up and cannot be reused.
The secondary security isolation measures require repeated patience and careful verification both when performing and when recovering because there is no obvious and uniform marking, are time consuming and present a safety hazard. Sometimes, debugging personnel can use a disposable insulating tape or A4 paper to cover the operation interval part, but the operation interval part is manufactured on site, and the operation interval part is time-consuming, labor-consuming and not firm, and is not a means worth popularizing.
Disclosure of Invention
The invention aims to provide a secondary safety protection method before secondary overhaul and debugging of a transformer substation main control room, which is convenient to operate and can effectively protect false collision and false operation in the execution work of secondary safety measures.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the secondary safety protection method before secondary overhaul and debugging of the transformer substation main control room is characterized by comprising the following steps of:
1) Preparing a secondary safety protection tool set, wherein the secondary safety protection tool set comprises a protective screen pressing plate isolation cover, a protective screen terminal strip isolation cover and an insulating clamp;
The protective screen pressing plate isolation cover comprises a right support flange 1, transparent organ plastic paper 2, a left support flange 3, a fixing piece 4 and a magnet 5, wherein the right side of the transparent organ plastic paper 2 is fixedly connected with the upper part of the right support flange 1 through the fixing piece 4, and the left side of the transparent organ plastic paper is fixedly connected with the upper part of the left support flange 3 through the fixing piece 4; the right support flange 1 and the left support flange 3 are respectively composed of an upper cross rod and 2 support legs 6, the front end part and the rear end part of the lower surface of the upper cross rod are respectively provided with a support leg 6, and a flange opening 7 is formed between the 2 support legs 6; magnets 5 are fixed at the lower ends of all the supporting feet 6; a red warning sign in a semitransparent state is printed on the transparent organ plastic paper 2;
the shielding cover of the protective screen terminal strip comprises a lower fixing plate 8, transparent organ plastic paper 9, a fixing piece 10, an upper fixing plate 11 and a clamping plate 12, wherein the upper edge of the transparent organ plastic paper 9 is fixedly connected with the upper fixing plate 11 through the fixing piece 10, the lower edge of the transparent organ plastic paper 9 is fixedly connected with the lower fixing plate 8 through the fixing piece 10, and the clamping plate 12 is respectively fixedly connected with the lower fixing plate 8 and the upper fixing plate 11; a red warning sign in a semitransparent state is printed on the transparent organ plastic paper 9;
The insulation clamp comprises a power wire clamp 13 and a marking device 14, wherein the left end part of the power wire clamp 13 is in threaded connection with the right end part of the marking device 14; the power wire clamp 13 comprises a clamp body 18 and spring pieces 19, wherein the outer diameter of the left end of the clamp body is larger than that of the right end, a power wire inserting through hole 17 is formed in the clamp body 18, the left port of the power wire inserting through hole is larger than that of the right port, 3-20 spring pieces 19 are fixed in the power wire inserting through hole 17, and the left port surrounded by all the spring pieces 19 is smaller than that of the right port; the marking device comprises a marking sleeve 15 and a marking device body 20, wherein 2-6 annular grooves 16 are formed in the outer surface of the marking device body 20 along the left-right direction, marking number sleeves 15 are sleeved in the annular grooves 16, 0-9 marking numbers are printed on the outer surface of the 2 marking number sleeves 15 close to the right, and English letter marking numbers are printed on the outer surface of the marking number sleeve 15 close to the left; the clamp 18, the marking number sleeve 15 and the marking device body 20 are made of insulating materials;
2) Before the secondary overhaul and debugging of the transformer substation main control room, the protective screen pressing plate isolation cover is pulled open, and the magnet 5 of the protective screen pressing plate isolation cover is absorbed on a protective screen cabinet (metal screen cabinet); pulling the shielding cover of the terminal strip of the protection screen apart, and respectively inserting 2 clamping plates 12 of the shielding cover of the terminal strip of the protection screen directly on the terminal strip; the insulating clips are rotated to make the marks on the using surfaces of the insulating clips different, and the ends of the power lines are inserted into the power line clamps 13.
The total length of the stretching of the transparent organ plastic paper 2 in the protective screen pressing plate isolation cover is 700mm at maximum, the maximum length of each organ can be stretched is 10mm, and the shortest length of the transparent organ plastic paper 2 in compression is 20mm.
The right support flange 1 and the left support flange 3 are made of transparent plastic, the width of the right support flange 1 and the left support flange 3 is 3mm, the height of the right support flange is 65mm, the length of the right support flange is 75mm, the length of the support legs 6 is 10mm, and the length of the flange openings 7 is 55mm.
The total length of the stretching of the transparent organ plastic paper 9 in the shielding cover of the terminal row of the protective screen is 1500mm at maximum, the maximum length of each organ can be stretched is 10mm, and the shortest length of the transparent organ plastic paper 9 is 60mm when being compressed.
The widths of the lower fixing plate 8 and the upper fixing plate 11 in the shielding screen terminal strip shielding cover are 3mm.
The length of the insulating clip is 100mm.
The covering area of the protective screen pressing plate isolation cover and the protective screen terminal strip isolation cover can be changed and telescopic. The shielding areas of the protective screen pressing plate shielding cover and the protective screen terminal strip shielding cover can be adjusted and changed, so that the materials are light, thin and safe, convenient to carry, collect and tidy, remarkably reduce daily maintenance and debugging tasks, shorten the execution time of safety measures of the protective device, improve maintenance efficiency, and solve the contradiction between heavy maintenance tasks and tension of maintenance staff.
1. The characteristic of the protective screen pressing plate isolation cover mainly comprises the following steps: the length is scalable, is applicable to the clamp plate isolation of different quantity in the clamp plate of a row, and this telescopic part uses transparent organ plastic paper 2, and is light and elasticity good. The supporting legs 6 are inlaid with powerful magnets, so that the metal screen cabinet can be firmly fixed, and the observation of the isolation pressing plate is not hindered, thereby ensuring the insulativity and the stability. The isolation cover is printed with obvious red warning words (anti-misoperation slogans).
2. The characteristics of the protective screen terminal strip isolation cover are mainly characterized in that: the clamping plate (elastic sheet) 12 of the shielding screen terminal strip shielding cover is directly inserted on any terminal strip, and is not required to be clamped on the secondary wire, so that the false collision of the secondary wire is ensured (the tightness safety of the secondary wire is ensured). The length is telescopic, the isolation and the coverage of the terminal strip are very accurate, and an obvious red warning sign (anti-misoperation sign) is printed on the cover. The whole insulating cover keeps a contracted state, occupies small space and is convenient to use.
3. The insulating clip is characterized mainly in that: the insulating clamp is completely insulated, and the clamping opening (namely the left port surrounded by all the spring pieces 19) can be arbitrarily loosened, so that wiring safety and falling-off prevention are ensured. In addition, the insulating clamp is provided with numerical marks with different colors (for example, four groups of combined labels with letters and numbers are adjustable, the numbers are 0-9, and the letters A-Z), the released secondary wires can be marked in sequence, the target is obvious, the processed port wiring can be marked randomly, and the recovery An Cuoshi is convenient to search and correct accurately. The insulating clamp can utilize the self clamp body to collect in order, and is convenient to use, check the quantity and carry.
The method of the invention shortens the execution time of the secondary measure from the original 60 minutes to the execution time of the normal single line interval of 30 minutes by taking the common screen of the two interval protection devices for 110kV line protection as an experimental object.
The beneficial effects of the invention are as follows: the false touch and false operation in the execution work of the secondary safety measure can be effectively prevented; the operation is convenient, the execution time of the secondary safety measure is shortened, and the maintenance safety and efficiency are improved. The method has certain unification and coordination effects on the execution of the secondary safety measures, and can form a set of regular and efficient secondary safety protection execution flow.
Drawings
Fig. 1 is a schematic structural view of a platen shield of the present invention.
Fig. 2 is a front view of the platen shield of the present invention in a stretched state.
Fig. 3 is a front view of the protective screen platen cover of the present invention in a compressed state.
Fig. 4 is a schematic structural view of a support flange of the platen shield of the present invention.
Fig. 5 is a top view of the platen shield of the present invention.
Fig. 6 is a schematic structural view of a terminal strip shield of the present invention.
Fig. 7 is a front view of the shield terminal block shield of the present invention in a stretched state.
Fig. 8 is a front view of the shield terminal block cage of the present invention in a compressed state.
Fig. 9 is a schematic structural view of a fixing plate and a clamping plate of the shielding terminal strip shielding case of the present invention.
Fig. 10 is a top view of the shield terminal block cage of the present invention.
Fig. 11 is an external view of an insulating clip of the present invention.
Fig. 12 is a schematic structural view of an insulating clip according to the present invention.
Fig. 13 is a right side view of the insulating clip of the present invention.
In the figure: the device comprises a right support flange, a transparent organ plastic paper 2, a left support flange 3, a fixing piece 4, a magnet 5, a support leg 6, a flange opening 7, a lower fixing plate 8, a transparent organ plastic paper 9, a fixing piece 10, an upper fixing plate 11, a clamping plate 12, a power wire clamp 13, a marking device 14, a marking number sleeve 15, a ring groove 16, a power wire inserting through hole 17, a clamp 18, a spring piece 19 and a marking device body 20.
Detailed Description
For a better understanding of the present invention, the technical solution of the present invention will be further described below with reference to the examples and the accompanying drawings.
As shown in fig. 1-13, a secondary safety protection method before secondary overhaul and debugging of a transformer substation main control room comprises the following steps:
1) Preparing a secondary safety protection tool set, wherein the secondary safety protection tool set comprises a protective screen pressing plate isolation cover, a protective screen terminal strip isolation cover and an insulating clamp;
the protective screen pressing plate isolation cover comprises a right support flange 1, transparent organ plastic paper (or transparent organ-shaped paper) 2, a left support flange 3, fixing pieces (such as rivets or bolts) 4 and a magnet 5, wherein the right side of the transparent organ plastic paper 2 is fixedly connected with the upper part of the right support flange 1 through the fixing pieces (rivets or bolts) 4 (the number of the fixing pieces 4 can be 2-20), and the left side of the transparent organ plastic paper is fixedly connected with the upper part of the left support flange 3 through the fixing pieces (rivets or bolts) 4 (the number of the fixing pieces 4 can be 2-20); the right support flange 1 and the left support flange 3 are respectively composed of an upper cross rod and 2 support legs 6, the front end part and the rear end part of the lower surface of the upper cross rod are respectively provided with a support leg 6 (as an integral structure), and a flange opening 7 is formed between the 2 support legs 6; magnets 5 are fixed at the lower ends of all the supporting feet 6; a translucent red warning sign (such as running equipment) is printed on the transparent organ plastic paper 2;
the shielding cover for the terminal strip of the protection screen comprises a lower fixing plate 8, transparent organ plastic paper (or transparent organ-shaped paper) 9, fixing pieces (rivets or bolts) 10, an upper fixing plate 11 and clamping plates (elastic sheets) 12, wherein the upper edge of the transparent organ plastic paper 9 is fixedly connected with the upper fixing plate 11 through the fixing pieces (rivets or bolts) 10 (the number of the fixing pieces 4 can be 2-20), the lower edge of the transparent organ plastic paper 9 is fixedly connected with the lower fixing plate 8 through the fixing pieces (rivets or bolts) 10 (the number of the fixing pieces 4 can be 2-20), and the clamping plates (elastic sheets) 12 are respectively fixedly connected on the lower fixing plate 8 and the upper fixing plate 11; a translucent red warning sign (such as running equipment) is printed on the transparent organ plastic paper 9;
The insulation clamp comprises a power wire clamp 13 and a marking device 14, wherein the left end part of the power wire clamp 13 is in threaded connection with the right end part of the marking device 14; the power wire clamp 13 comprises a clamp body 18 and spring pieces 19, wherein the outer diameter of the left end of the clamp body is larger than that of the right end, a power wire inserting through hole 17 is formed in the clamp body 18, the left port of the power wire inserting through hole is larger than that of the right port (the inside of the through hole is arc-shaped), 3-20 spring pieces 19 (uniformly distributed) are fixed in the power wire inserting through hole 17, and the left port (namely a clamp port) surrounded by all the spring pieces 19 is smaller than that of the right port; the marking device comprises a marking sleeve 15 and a marking device body 20, wherein 2-6 annular grooves 16 (4 annular grooves 16 are adopted in the embodiment) are formed in the outer surface of the marking device body 20 along the left-right direction, and a marking sleeve 15{ the marking sleeve is rotatable ] is sleeved in the annular grooves 16; one surface of the marking device body 20 is a front surface (a use surface is shown in fig. 11), marks can be made, the outer surfaces of the 2 marking number sleeves 15 near the right are printed with marking numbers of 0-9, and the outer surfaces of the marking number sleeves 15 near the left are printed with marking numbers of English letters; the clamp 18, the marking number sleeve 15 and the marking device body 20 are made of insulating materials;
2) Before transformer substation main control room secondary overhauls the debugging, pulls open (draw to required length) protection screen clamp plate cage, and the magnet 5 of protection screen clamp plate cage is inhaled at the protection screen cabinet (namely: metal screen cabinet); pulling the shielding screen terminal strip isolation cover open (to a required length), and respectively directly inserting 2 clamping plates 12 of the shielding screen terminal strip isolation cover on the terminal strip; the insulating clips are rotated to make the marks on the use surfaces of the insulating clips different, and the ends of the power lines are inserted into the power line clamp 13 { after the ends of the power lines are peeled off (standby), the power line is inserted into the power line clamp 13 }. The protective screen pressing plate isolation cover and the protective screen terminal strip isolation cover and the insulating clamp can be respectively and independently used, and can also be simultaneously combined for use.
After the secondary overhaul and debugging of the transformer substation in the transformer substation main control room are finished, the protective screen pressing plate isolation cover, the protective screen terminal strip isolation cover and the insulating clamp are retracted. The protective screen pressing plate isolation cover is transversely (leftwards and rightwards) stretched for use. The shielding cover of the terminal strip of the protective screen is longitudinally (vertically) stretched for use.
The total length of the stretching of the transparent organ plastic paper 2 in the protective screen pressing plate isolation cover is 700mm at maximum (the maximum effective length of the pressing plate installed in the standard screen cabinet), the maximum length of each organ stretching is 10mm, and the shortest length of the transparent organ plastic paper 2 in compression is 20mm.
The right support flange 1 and the left support flange 3 are made of transparent plastic, the width (namely the thickness) of the right support flange 1 and the left support flange 3 is 3mm, the height is 65mm, the length is 75mm, the length of the support legs 6 is 10mm, and the length of the flange openings 7 is 55mm.
The total length of the stretching of the transparent organ plastic paper 9 in the shielding cover of the terminal row of the protective screen is 1500mm at maximum, the maximum length of each organ can be stretched is 10mm, and the shortest length of the transparent organ plastic paper 9 is 60mm when being compressed.
The widths (namely the thicknesses) of the lower fixing plate 8 and the upper fixing plate 11 in the shielding terminal strip shielding cover are 3mm.
The length of the insulating clip is 100mm.
Protective screen clamp plate cage: ensuring that pressing plates with various types and heights can be covered; the protective screen pressing plate isolation cover can transversely stretch out and draw back, flexible organ type stretching out and drawing back is adopted, the maximum length is 700mm in the standard screen cabinet available, all pressing plates in a row can be guaranteed to be covered, and the maximum length of each organ is 10mm.
After the safety measure program is executed by the multi-interval common-screen protection device of the 110kV line protection device, one person operates the tester during protection debugging, two persons respectively operate the protection device with the maintenance interval in the screen, and simultaneously, the alternating current sampling, the protection action, the switching of the protection soft and hard pressing plates, the protection switching on and off quantity, the recording and the operation are performed on the protection device.
By adopting the method, the execution time of the interval safety measure of the common screen is shortened from the original 60 minutes to 23 minutes, the target value is reached, the average time of the debugging work is shortened from the original 140 minutes to 122 minutes, and the overall efficiency of the protection debugging is improved.
Claims (6)
1. The secondary safety protection method before secondary overhaul and debugging of the transformer substation main control room is characterized by comprising the following steps of:
1) Preparing a secondary safety protection tool set, wherein the secondary safety protection tool set comprises a protective screen pressing plate isolation cover, a protective screen terminal strip isolation cover and an insulating clamp;
The protective screen pressing plate isolation cover comprises a right support flange (1), transparent organ plastic paper (2), a left support flange (3), a fixing piece (4) and a magnet (5), wherein the right side of the transparent organ plastic paper (2) is fixedly connected with the upper part of the right support flange (1) through the fixing piece (4), and the left side of the transparent organ plastic paper is fixedly connected with the upper part of the left support flange (3) through the fixing piece (4); the right support flange (1) and the left support flange (3) are respectively composed of an upper cross rod and 2 support legs (6), the front end part and the rear end part of the lower surface of the upper cross rod are respectively provided with one support leg (6), and a flange opening (7) is formed between the 2 support legs (6); the lower ends of all the supporting feet (6) are fixed with magnets (5); a red warning sign in a semitransparent state is printed on the transparent organ plastic paper (2);
The protective screen terminal row isolation cover comprises a lower fixing plate (8), transparent organ plastic paper (9), fixing pieces (10), an upper fixing plate (11) and clamping plates (12), wherein the upper edge of the transparent organ plastic paper (9) is fixedly connected with the upper fixing plate (11) through the fixing pieces (10), the lower edge of the transparent organ plastic paper (9) is fixedly connected with the lower fixing plate (8) through the fixing pieces (10), and the clamping plates (12) are fixedly connected to the lower fixing plate (8) and the upper fixing plate (11) respectively; a red warning sign in a semitransparent state is printed on the transparent organ plastic paper (9);
The insulation clamp comprises a power wire clamp (13) and a marking device (14), wherein the left end part of the power wire clamp (13) is in threaded connection with the right end part of the marking device (14); the power wire clamp (13) comprises a clamp body (18) and spring pieces (19), wherein the outer diameter of the left end of the clamp body is larger than that of the right end, a power wire inserting through hole (17) is formed in the clamp body (18), the left port of the power wire inserting through hole is larger than that of the right port, 3-20 spring pieces (19) are fixed in the power wire inserting through hole 17, and the left port surrounded by all the spring pieces (19) is smaller than that of the right port; the marking device comprises a marking sleeve (15) and a marking device body (20), wherein 2-6 annular grooves (16) are formed in the outer surface of the marking device body (20) along the left-right direction, the marking sleeve (15) is sleeved in the annular grooves (16), 0-9 marking numbers are printed on the outer surface of the 2 marking sleeves (15) close to the right, and English letter marking numbers are printed on the outer surface of the marking sleeve (15) close to the left; the clamp body (18), the marking number sleeve (15) and the marking device body (20) are made of insulating materials;
2) Before the secondary overhaul and debugging of the transformer substation main control room, the protective screen pressing plate isolation cover is pulled open, and the magnet (5) of the protective screen pressing plate isolation cover is absorbed on the protective screen cabinet; pulling the shielding cover of the terminal strip of the protection screen apart, and respectively inserting 2 clamping plates (12) of the shielding cover of the terminal strip of the protection screen on the terminal strip directly; the insulating clamps are rotated to mark the number sleeves (15), so that the marks on the using surfaces of the insulating clamps are different, and the end heads of the power lines are inserted into the power line clamps (13).
2. The secondary safety protection method before secondary overhaul and debugging of transformer substation main control room of claim 1 is characterized by comprising the following steps: the total length of the stretching of the transparent organ plastic paper (2) in the protective screen pressing plate isolation cover is 700mm at most, the maximum length of each organ can be stretched is 10mm, and the shortest length of the transparent organ plastic paper (2) is 20mm when being compressed.
3. The secondary safety protection method before secondary overhaul and debugging of transformer substation main control room of claim 1 is characterized by comprising the following steps: the right support flange (1) and the left support flange (3) are made of transparent plastic, the width of the right support flange (1) and the left support flange (3) is 3mm, the height is 65mm, the length is 75mm, the length of the support leg (6) is 10mm, and the length of the flange opening (7) is 55mm.
4. The secondary safety protection method before secondary overhaul and debugging of transformer substation main control room of claim 1 is characterized by comprising the following steps: the total length of the stretching of the transparent organ plastic paper (9) in the protective screen terminal row isolation cover is 1500mm at most, the maximum length of each organ stretching is 10mm, and the shortest length of the transparent organ plastic paper (9) is 60mm when being compressed.
5. The secondary safety protection method before secondary overhaul and debugging of transformer substation main control room of claim 1 is characterized by comprising the following steps: the widths of the lower fixing plate (8) and the upper fixing plate (11) in the shielding screen terminal strip shielding cover are 3mm.
6. The secondary safety protection method before secondary overhaul and debugging of transformer substation main control room of claim 1 is characterized by comprising the following steps: the length of the insulating clip is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011027476.6A CN112260117B (en) | 2020-09-25 | 2020-09-25 | Secondary safety protection method for transformer substation main control room before secondary overhaul and debugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011027476.6A CN112260117B (en) | 2020-09-25 | 2020-09-25 | Secondary safety protection method for transformer substation main control room before secondary overhaul and debugging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112260117A CN112260117A (en) | 2021-01-22 |
| CN112260117B true CN112260117B (en) | 2024-05-03 |
Family
ID=74234382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011027476.6A Active CN112260117B (en) | 2020-09-25 | 2020-09-25 | Secondary safety protection method for transformer substation main control room before secondary overhaul and debugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112260117B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB386000A (en) * | 1931-07-09 | 1933-01-09 | Reyrolle A & Co Ltd | Improvements in or relating to metal-clad electric switchgear |
| CN101651298A (en) * | 2009-08-18 | 2010-02-17 | 石家庄供电公司 | Safe guarding device for power relaying protection field work and use method thereof |
| JP2012157202A (en) * | 2011-01-27 | 2012-08-16 | Chugoku Electric Power Co Inc:The | False trip preventing cover and actual interruption test method |
| CA2804691A1 (en) * | 2012-02-28 | 2013-08-28 | Schneider Electric Industries Sas | Functional measurement block for medium voltage distribution station |
| CN203205749U (en) * | 2013-04-18 | 2013-09-18 | 江苏省电力公司常州供电公司 | Maintenance anti-misoperation device of transformer station relay protection and automatic device cabinet |
| CN203278052U (en) * | 2013-05-31 | 2013-11-06 | 国家电网公司 | Protective pressure plate cover |
| CN205429261U (en) * | 2016-03-28 | 2016-08-03 | 国家电网公司 | Safety isolation protective cover for terminal block |
| KR101721521B1 (en) * | 2016-08-08 | 2017-04-10 | (주)이림엔지니어링 | Equipment for wiring transformation cables of transformer substation |
| CN111342379A (en) * | 2020-04-28 | 2020-06-26 | 国网河北省电力有限公司保定供电分公司 | Insulation baffle plate for preventing false touch in live-line work |
| CN213278928U (en) * | 2020-09-25 | 2021-05-25 | 国网湖北省电力有限公司咸宁供电公司 | Protective screen pressure plate isolation cover |
| CN213278926U (en) * | 2020-09-25 | 2021-05-25 | 国网湖北省电力有限公司咸宁供电公司 | Protective screen terminal row isolation cover |
| CN213278927U (en) * | 2020-09-25 | 2021-05-25 | 国网湖北省电力有限公司咸宁供电公司 | Insulating clamp |
-
2020
- 2020-09-25 CN CN202011027476.6A patent/CN112260117B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB386000A (en) * | 1931-07-09 | 1933-01-09 | Reyrolle A & Co Ltd | Improvements in or relating to metal-clad electric switchgear |
| CN101651298A (en) * | 2009-08-18 | 2010-02-17 | 石家庄供电公司 | Safe guarding device for power relaying protection field work and use method thereof |
| JP2012157202A (en) * | 2011-01-27 | 2012-08-16 | Chugoku Electric Power Co Inc:The | False trip preventing cover and actual interruption test method |
| CA2804691A1 (en) * | 2012-02-28 | 2013-08-28 | Schneider Electric Industries Sas | Functional measurement block for medium voltage distribution station |
| CN203205749U (en) * | 2013-04-18 | 2013-09-18 | 江苏省电力公司常州供电公司 | Maintenance anti-misoperation device of transformer station relay protection and automatic device cabinet |
| CN203278052U (en) * | 2013-05-31 | 2013-11-06 | 国家电网公司 | Protective pressure plate cover |
| CN205429261U (en) * | 2016-03-28 | 2016-08-03 | 国家电网公司 | Safety isolation protective cover for terminal block |
| KR101721521B1 (en) * | 2016-08-08 | 2017-04-10 | (주)이림엔지니어링 | Equipment for wiring transformation cables of transformer substation |
| CN111342379A (en) * | 2020-04-28 | 2020-06-26 | 国网河北省电力有限公司保定供电分公司 | Insulation baffle plate for preventing false touch in live-line work |
| CN213278928U (en) * | 2020-09-25 | 2021-05-25 | 国网湖北省电力有限公司咸宁供电公司 | Protective screen pressure plate isolation cover |
| CN213278926U (en) * | 2020-09-25 | 2021-05-25 | 国网湖北省电力有限公司咸宁供电公司 | Protective screen terminal row isolation cover |
| CN213278927U (en) * | 2020-09-25 | 2021-05-25 | 国网湖北省电力有限公司咸宁供电公司 | Insulating clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112260117A (en) | 2021-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208521482U (en) | A kind of rural power grids distribution business work skill operation training cabinet | |
| CN105977845A (en) | Anti-error apparatus for relay protection and automatic apparatus cubicle maintenance of transformer substation | |
| CN112260117B (en) | Secondary safety protection method for transformer substation main control room before secondary overhaul and debugging | |
| CN213278928U (en) | Protective screen pressure plate isolation cover | |
| CN213278927U (en) | Insulating clamp | |
| CN213278926U (en) | Protective screen terminal row isolation cover | |
| CN109859907B (en) | Fireproof flame-retardant cable online production detection identification device and identification method | |
| CN111029912A (en) | Relay protection secondary operation isolating device | |
| KR102131034B1 (en) | Marking device combined with energizing test function with multi-function | |
| CN201295476Y (en) | Substation equipment maintenance and repair safety belt suspension device | |
| CN214590154U (en) | Transformer substation's secondary safety protection is with mark insulator cap | |
| CN204019510U (en) | A kind of power combinations managing security tools and instruments cover cabinet | |
| CN211318655U (en) | High-voltage cable oscillation partial discharge testing device | |
| CN210155300U (en) | Quick detection tool for correctness of circuit wiring | |
| CN209200507U (en) | A kind of quick arrangement safety measure system for GIS convergence control cabinet | |
| CN208606783U (en) | One kind detecting maintenance device for power communication | |
| CN110716114A (en) | Insulating rod withstand voltage test appurtenance | |
| CN204927951U (en) | Dedicated line pincers of secondary circuit stereoplasm wire | |
| CN208270613U (en) | A kind of multifunctional high pressure test wire insulating support | |
| CN106569077A (en) | Short circuit and detection dual-purpose device used for relay protection | |
| CN108490242B (en) | Novel electricity test device | |
| CN112435886A (en) | Isolation switch insulation protection cover and universal operating rod | |
| CN221196329U (en) | Wall body applies tub and prevents fracture structure | |
| CN220772341U (en) | Hand-driven vibration measuring tool | |
| CN220341867U (en) | Change platform insulation external member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |