CN201038102Y - Three-phase linkage drop-off type fuse - Google Patents
Three-phase linkage drop-off type fuse Download PDFInfo
- Publication number
- CN201038102Y CN201038102Y CNU2007200838387U CN200720083838U CN201038102Y CN 201038102 Y CN201038102 Y CN 201038102Y CN U2007200838387 U CNU2007200838387 U CN U2007200838387U CN 200720083838 U CN200720083838 U CN 200720083838U CN 201038102 Y CN201038102 Y CN 201038102Y
- Authority
- CN
- China
- Prior art keywords
- moving contact
- contact assembly
- connecting rod
- assembly
- fixed
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Electric Cable Installation (AREA)
Abstract
A three-phase linkage dropping fuse relates to an electrical power equipment, in particular to an outdoor transformer fuse. The fuse comprises three rod-shaped porcelain insulator(1), a mounting plate assembly(2), an upper static contact assembly(3), an upper moving contact assembly(4), an arc extinguishing tube(5), a fuse(6), a lower moving contact assembly(7), a lower static contact assembly(8), a connection rod bracket(9), a connection rod fixing card(10), a swap deduction(11) and a connection rod(12), a link rod with a manipulator(13) and a division and reunion handle(14). The utility model is characterized in that a single-phase dual ear holes hook link is changed to be three-phase linkage inserting link. When a fuse of one phase is melted, the three phases drop at the same time, which has an open-phase protection function. The utility model has the advantages of reasonable structure, reliable work, three-phase linkage, safety and convenience and improved efficiency. The utility model is widely used in all transformers and outdoor power projects.
Description
Affiliated technical field
The utility model relates to a kind of electric power equipment, especially outdoor type transformer fuse.
Background technology
Domestic existing outdoor type transformer all is single-phase operation with fuse, with insulation in addition the gram rod hang the upper contact head annular distance and under the indefinite situation of swing, will descend the contact ears to hang into undersetting, three-phase is separately finished like this, and is not only time-consuming, require great effort but also dangerous.
Finish with high technology content, expensive remote control means, also unrealistic for the outdoor type transformer that amount is big, wide with fuse.
According to retrieval, domestic do not have as yet three link, outdoor type transformer fuse that plug-in type is closed a floodgate.
Summary of the invention
In order to overcome the deficiency of above-mentioned existence, the utility model provides a kind of and can save time, convenient, safety, can three-phase close a floodgate simultaneously, plug-type three fuse switches that link.
The technical scheme that its technical problem that solves the utility model adopts is: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, this fuse comprises three cover clavate porcelain knob insulators (1), mounting panel assembly (2), upper static contact assembly (3), last moving contact assembly (4), expulsion tube (5), fusible link (6), lower moving contact assembly (7), following fixed contact assembly (8), connecting rod rack (9), connecting rod fixed card (10), fall button (11) and a connecting rod (12), the gram rod (13) in addition of a band manipulator, a deciliter handle (14); Clavate porcelain knob insulator (1), upper static contact assembly (3), expulsion tube (5), fusible link (6) is known, mounting panel assembly (2) is fixedly connected at the middle part of clavate porcelain knob insulator (1), the upper end upper static contact assembly (3) that is fixedly connected, the lower end fixed contact assembly (8) that is fixedly connected down, mounting panel assembly (2) is fixedly connected with the transformer stand, the upper end of expulsion tube (5) is fixedly connected and goes up moving contact assembly (4), the lower end lower moving contact assembly (7) that is fixedly connected, fusible link (6) passes expulsion tube (5), one end is fixed on the holding screw (4.4) of moving contact assembly (4), hold on the holding screw (7.4) that button (11) is fixed on lower moving contact assembly (7) lower end, the taper pin (7.2) of lower moving contact assembly (7) inserts in the horn mouth socket (8.5) of following fixed contact assembly (8), connecting rod rack (9) and horn mouth socket (8.5), connecting rod fixed card (10) is integral, the connecting rod (12) that a high strength insulating resin insulating rod is done passes three connecting rod fixed card (10) successively, and fastening connection, make connecting rod (12) and connecting rod rack (9), horn mouth socket (8.5) joins together, a deciliter handle (14) is fixing together with middle one mutually connecting rod fixed card (10), the pulling of gram rod (13) the in addition deciliter handle (14) of hand-held band manipulator upwards promotes, the last moving contact assembly (4) that makes connecting rod (12) drive the lower moving contact assembly (7) of three-phase and join together with it is upwards swing together, and push upper static contact assembly (3) and following fixed contact assembly (8) to, make moving up and down, the fastening contact of fixed contact.Mounting panel assembly (2) comprises two semi-ring clamps (2.1), mounting panel (2.2), movable clamp (2.3), mounting panel (2.2) is gone up and is made to have sliding tray, one end hook, the other end and a semi-ring clamp (2.1) are welded into one, with bolt two semi-ring clamps (2.1) and clavate porcelain knob insulator (1) are tightened to one, movable clamp (2.3) makes the shape, one side hook, make a location bolt on the another side, bolt penetrates in the sliding tray of mounting panel (2.2), movable clamp (2.3) can be moved along sliding tray, adjust the position when being convenient to be installed on the transformer stand, the convenient installation; Upper static contact assembly (3) comprises ∪ type bolt (3.1), upper wiring board (3.2), upper static contact (3.3), pressing plate (3.4), spring (3.5), cover plate (3.6), type support plate (3.7), arc extinguishing board (3.8), goes up binding post (3.9), with ∪ type bolt (3.1) clavate porcelain knob insulator (1) and upper static contact assembly (3) is fixedly connected; Last moving contact assembly (4) comprises moving contact frame (4.1), goes up moving contact (4.2), weight (4.3), holding screw (44), last moving contact frame (4.1) is integral with weight (4.3), gain in weight than known, last moving contact (4.2) is fixed on the moving contact frame (4.1), holding screw (4.4) is fixed on the moving contact (4.2), last moving contact frame (4.1) is fixed on the upper end of expulsion tube (5) with screw; Lower moving contact assembly (7) comprises fitting (7.1) in the lower moving contact, lower moving contact external piece (7.2), bearing pin (7.3), holding screw (7.4), location Xiao (7.5), make pin shaft hole on two fishplate bars about fitting (7.1) in the lower moving contact, the hanging feet of convex shape is made in the outside, the circular hole of fitting (7.1) in insert expulsion tube (5) lower end, fastening with screw, the top of lower moving contact external piece (7.2) makes the mouth hanging of indent convex shape, tapered pin is made in the bottom, make sliding tray on two boards about the middle part, Xiao hole, location is done in the below of sliding tray, location Xiao (7.5) fixes with Xiao hole, location after passing the location hole of button (11), lower moving contact external piece (7.2) is clamped in the lower moving contact fitting (7.1) and push, the evagination hanging feet of fitting (7.1) in the lower moving contact and the indent mouth hanging of external piece (7.2) are interlocked, and pass the sliding tray of external piece (7.2) and the pin shaft hole of interior fitting (7.1) with bearing pin (7.3), make two connections, holding screw (7.4) is made in external piece (7.2) outside; Following fixed contact assembly (8) comprises U-bolt (8.1), following terminal block (8.2), following fixed contact (8.3), type undersetting (8.4), horn mouth socket (8.5), bearing pin (8.6), following binding post (8.7), spring and spring base (8.8), spacing Xiao (8.9), following terminal block (8.2) is gone up and is done three holes, a ∪ type bolt mounting holes is each side made in the upper end, ∪ type bolt (8.1) passes this hole, clavate porcelain knob insulator (1) and following fixed contact assembly (8) are fixedly connected, wiring hole of lower end work placed in the middle, following fixed contact (8.3) is that sheet brass is converted into the shape, wiring hole is bored in the lower end, the wiring hole that passes this hole and following terminal block (8.2) with bolt connects, become binding post (8.7) down, type undersetting (8.4) is integral with following terminal block (8.2), the inboard work of horn mouth socket (8.5) has pin sleeve, the outside and connecting rod rack (9), connecting rod fixed card (10) is integral, bearing pin (8.6) passes this pin sleeve and is bearing on the type undersetting (8.4), horn mouth socket (8.5) can be swung around bearing pin (8.6), type undersetting (8.4) is gone up and is done to have spacing Xiao (8.9), the amplitude of fluctuation of restriction horn mouth socket (8.5), horn mouth socket (8.5) and connecting rod rack (9), connecting rod fixed card (10), insulation lip (9.1) is integral with anti-rot plastic; The gram rod (13) in addition of band manipulator comprises a left side, right handgrip (13.1), a left side, right expansion joint (13.2), holder (13.3), nut bearing (13.4), screw rod (13.5), two semicircle installation sleeves (13.6), restrain rod (13.7) in addition, a left side, right handgrip (13.1) and holder (13.3), a left side, right handgrip (13.1) and expansion joint (13.2), expansion joint (13.2) is all sold with nut bearing (13.4) and is connected, screw rod (13.5) passes nut bearing (13.4) one end bearings on holder (13.3), the other end makes to have interior connection holes, gram rod (13.7) rounded head is inserted this endoporus in addition, puts into the fastening connection of two semicircle installation sleeves (13.6) again.
The beneficial effects of the utility model are, rational in infrastructure, reliable operation, three links, safe and convenient, raise the efficiency.Be widely used in all transformers and outdoor power engineering.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is single-phase installation diagram and the fusible link installation diagram of going up moving contact assembly, upper static contact assembly, lower moving contact assembly, following fixed contact assembly and expulsion tube and clavate porcelain knob insulator of the utility model.
Fig. 3 is the structural representation of the utility model lower moving contact assembly, the vertical view that Fig. 4 is Fig. 3.
The A that Fig. 5 is the structural representation of fixed contact assembly under the utility model, vertical view that Fig. 6 is Fig. 5, Fig. 7 is Fig. 5 is to view.
Fig. 8 is the structural representation that falls button, the vertical view that Fig. 9 is Fig. 8.
Figure 10 be the utility model band manipulator restrain the bar structure schematic diagram in addition.
Embodiment
The utility model is described in further detail according to accompanying drawing.
One, single-phase installation
1, by bolt that two semi-ring clamps (2.1) are fixing with it at the middle part of known clavate porcelain knob insulator (1), mounting panel assembly (2) promptly is fixedly connected; In the upper end with ∪ type bolt (3.1) the upper static contact assembly (3) that is fixedly connected; Be fixedly connected fixed contact assembly (8) in the lower end with ∪ type bolt (8.1).
2, will go up the upper end that last moving contact frame (4.1) in the moving contact assembly (4) is inserted in expulsion tube (5), be screwed connection; The lower end of expulsion tube (5) is inserted in the interior fitting (7.1) of lower moving contact, be screwed connection; Locating the location Xiao Kongzhong that Xiao (7.5) passes the location hole of button (11) and is fixed on lower moving contact external piece (7.2), lower moving contact external piece (7.2) is clamped in the lower moving contact fitting (7.1) and push, the evagination hanging feet of interior fitting (7.1) and the indent mouth hanging of external piece (7.2) are interlocked, and pass the sliding tray of external piece (7.2) and the pin shaft hole of interior fitting (7.1) with bearing pin (7.3), make two connections, Xiao fixes with opening, and interior fitting (7.1) can be slided along sliding tray.
3, fusible link (6) is passed expulsion tube (5), the upper end is fixed on the holding screw (4.4) of moving contact (4.2), and the lower end passes expulsion tube (5) and holds button (11), is fixed on the holding screw (7.4) of lower moving contact external piece (7.2).
4, respectively the mounting panel (2.2) on each single-phase clavate porcelain knob insulator (1) is connected with the transformer stand, one side that the gib head of mounting panel (2.2) is hooked the stand angle bar, the position of adjustment activity clamp (2.3), make the gib head of movable clamp (23) hook the another side of stand angle bar, bolt is fastening; Binding post (3.9) on the upper wiring board (3.2) connects with the high pressure stump, and the binding post (8.7) on the following terminal block (8.2) connects with transformer.
5, in the horn mouth socket (8.5) with fixed contact assembly (8) under the taper pin insertion of lower moving contact (7.2) in the lower moving contact assembly (7).
6, single-phasely install respectively, prepare to close a floodgate.
Two, three combined floodgates that link
1, connecting rod (12) passes three connecting rod fixed card (10) successively, treat that three-phase is controlled evenly, vertical, flexible operation, connecting rod fixed card (10) and connecting rod (12) are fixedly connected, and a deciliter handle (14) is fixed together with middle one mutually connecting rod fixed card (10).
2, the hand-held gram rod (13) in addition of manipulator of being with upwards spurs a deciliter handle (14), make connecting rod (12) and with it fixedly all-in-one-piece connecting rod rack (9), horn mouth socket (8.5) together around down bearing pin (8.6) swing of fixed contact assembly (8), drive the upwards swing together of lower moving contact (7.2) that inserts and the last moving contact assembly (4) that joins together with it, and push upper static contact (3.3) and following fixed contact (8.3) to, make the three-phase fastening contact of dynamic and static contact up and down, transformer puts into operation.
Three, single-phase fusing is compound
1, if the fusing of any phase fusible link (6); falling button (11) loses to support and falls; fitting (7.1) and lower moving contact external piece (7.2) is out of hand and hanging feet and mouth hanging come off in the lower moving contact; it is back under the deadweight effect of upper static contact (3.3) pressure, last moving contact assembly (4) and expulsion tube (5) to thread off; last moving contact (4.2) and upper static contact (3.3) disconnect fast; fitting (7.1) is along the sliding tray landing in the lower moving contact; dynamic and static contact is broken away to safe distance; and spur on other two-phases dynamic and static contact and throw off simultaneously, play the open-phase protection effect.
2, the gram rod (13) in addition of hand-held band manipulator, other is restrained rod (13.7) to right rotation, making screw rod (i3.5) promote nut bearing (13.4) to right rotation moves up, and the expansion joint (13.2) that promotion and nut bearing (13.4) join together opens, left and right handgrip (13.1) clamps the expulsion tube (5) of fusible link (6) fusing, lower moving contact (7.2) is extracted from horn mouth socket (8.5), reinstall fusible link (6), again insert horn mouth socket (8.5), close a floodgate the multiple normal operation of transformer ash repeatedly mutually.
But combined floodgate gap free adjustment in 15mm.
Claims (8)
1. three fuse switches that link is characterized in that: this fuse comprises three cover clavate porcelain knob insulators (1), mounting panel assembly (2), upper static contact assembly (3), goes up moving contact assembly (4), expulsion tube (5), fusible link (6), lower moving contact assembly (7), down fixed contact assembly (8), connecting rod rack (9), connecting rod fixed card (10), fall buckle (11) and a connecting rod (12), a band manipulator restrain excellent (13), a deciliter handle (14) in addition; Mounting panel assembly (2) is fixedly connected at the middle part of known clavate porcelain knob insulator (1), the upper end upper static contact assembly (3) that is fixedly connected, the lower end fixed contact assembly (8) that is fixedly connected down, mounting panel assembly (2) is fixedly connected with the transformer stand, the upper end of expulsion tube (5) is fixedly connected and goes up moving contact assembly (4), the lower end lower moving contact assembly (7) that is fixedly connected, fusible link (6) passes expulsion tube (5), one end is fixed on the holding screw (4.4) of moving contact assembly (4), hold on the holding screw (7.4) that button (11) is fixed on lower moving contact assembly (7) lower end, the taper pin (7.2) of lower moving contact assembly (7) inserts in the horn mouth socket (8.5) of following fixed contact assembly (8), connecting rod rack (9) and horn mouth socket (8.5), connecting rod fixed card (10) is integral, the connecting rod (12) that a high strength insulating resin insulating rod is done passes three connecting rod fixed card (10) successively, and fastening connection, make connecting rod (12) and connecting rod rack (9), horn mouth socket (8.5) joins together, a deciliter handle (14) is fixing together with middle one mutually connecting rod fixed card (10), the pulling of gram rod (13) the in addition deciliter handle (14) of hand-held band manipulator upwards promotes, the last moving contact assembly (4) that makes connecting rod (12) drive the lower moving contact assembly (7) of three-phase and join together with it is upwards swing together, and push upper static contact assembly (3) and following fixed contact assembly (8) to, make moving up and down, the fastening contact of fixed contact.
2. fuse according to claim 1, it is characterized in that: mounting panel assembly (2) comprises two semi-ring clamps (2.1), mounting panel (2.2), movable clamp (2.3), mounting panel (2.2) is gone up and is made to have sliding tray, one end curves an ancient unit of weight shape, the other end and a semi-ring clamp (2.1) are welded into one, with bolt two semi-ring clamps (2.1) and clavate porcelain knob insulator (1) are tightened to one, movable clamp (2.3) makes the shape, one side hook, make a location bolt on the another side, bolt penetrates in the sliding tray of mounting panel (2.2), and movable clamp (2.3) can be moved along sliding tray.
3. fuse according to claim 1, it is characterized in that: go up moving contact assembly (4) and comprise moving contact frame (4.1), go up moving contact (4.2), weight (4.3), holding screw (4.4), last moving contact frame (4.1) is integral with weight (4.3), gain in weight than known, last moving contact (4.2) is fixed on the moving contact frame (4.1), holding screw (4.4) is fixed on the moving contact (4.2), last moving contact frame (4.1) is fixed on the upper end of expulsion tube (5) with screw.
4. fuse according to claim 1, it is characterized in that: lower moving contact assembly (7) comprises fitting (7.1) in the lower moving contact, lower moving contact external piece (7.2), bearing pin (7.3), holding screw (7.4), location Xiao (7.5), make pin shaft hole on two fishplate bars about fitting (7.1) in the lower moving contact, the hanging feet of convex shape is made in the outside, the circular hole of fitting (7.1) in insert expulsion tube (5) lower end, fastening with screw, the top of lower moving contact external piece (7.2) makes the mouth hanging of indent convex shape, tapered pin is made in the bottom, make sliding tray on two boards about the middle part, Xiao hole, location is done in the below of sliding tray, location Xiao (7.5) fixes with Xiao hole, location after passing the location hole of button (11), lower moving contact external piece (7.2) is clamped in the lower moving contact fitting (7.1) and push, the evagination hanging feet of fitting (7.1) in the lower moving contact and the indent mouth hanging of external piece (7.2) are interlocked, and pass the sliding tray of external piece (7.2) and the pin shaft hole of interior fitting (7.1) with bearing pin (7.3), make two connections, holding screw (7.4) is made in external piece (7.2) outside.
5. fuse according to claim 1, it is characterized in that: following fixed contact assembly (8) comprises ∪ type bolt (8.1), following terminal block (8.2), following fixed contact (8.3), type undersetting (8.4), horn mouth socket (8.5), bearing pin (8.6), following binding post (8.7), spring and spring base (8.8), spacing Xiao (8.9), following terminal block (8.2) is gone up and is done three holes, a ∪ type bolt mounting holes is each side made in the upper end, ∪ type bolt (8.1) passes this hole, clavate porcelain knob insulator (1) and following fixed contact assembly (8) are fixedly connected, wiring hole of lower end work placed in the middle, following fixed contact (8.3) is that sheet brass is converted into the shape, wiring hole is bored in the lower end, the wiring hole that passes this hole and following terminal block (8.2) with bolt connects, become binding post (8.7) down, type undersetting (8.4) is integral with following terminal block (8.2), the inboard work of horn mouth socket (8.5) has pin sleeve, the outside and connecting rod rack (9), connecting rod fixed card (10) is integral, bearing pin (8.6) passes this pin sleeve and is bearing on the type undersetting (8.4), horn mouth socket (8.5) can be swung around bearing pin (8.6), and type undersetting (8.4) is gone up and is done to have spacing Xiao (8.9).
6. fuse according to claim 1 is characterized in that: falling button (11) is the rectangle sheet, and an end makes location hole, and the other end makes dovetail shaped, and indentation, there is turned over downwards and turn 90 degrees.
7. fuse according to claim 1 is characterized in that: horn mouth socket (8.5) is integral with anti-rot plastic with connecting rod rack (9), connecting rod fixed card (10), insulation lip (9.1).
8. fuse according to claim 1, it is characterized in that: the gram rod (13) in addition of band manipulator comprises a left side, right handgrip (13.1), a left side, right expansion joint (13.2), holder (13.3), nut bearing (13.4), screw rod (13.5), two semicircle installation sleeves (13.6), restrain rod (13.7) in addition, a left side, right handgrip (13.1) and holder (13.3), a left side, right handgrip (13.1) and expansion joint (13.2), expansion joint (13.2) is all sold with nut bearing (13.4) and is connected, screw rod (13.5) passes nut bearing (13.4) one end bearings on holder (13.3), the other end makes to have interior connection holes, gram rod (13.7) rounded head is inserted this endoporus in addition, puts into the fastening connection of two semicircle installation sleeves (13.6) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200838387U CN201038102Y (en) | 2007-03-22 | 2007-03-22 | Three-phase linkage drop-off type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200838387U CN201038102Y (en) | 2007-03-22 | 2007-03-22 | Three-phase linkage drop-off type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038102Y true CN201038102Y (en) | 2008-03-19 |
Family
ID=39210621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200838387U Expired - Fee Related CN201038102Y (en) | 2007-03-22 | 2007-03-22 | Three-phase linkage drop-off type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038102Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360998A (en) * | 2011-11-03 | 2012-02-22 | 余谋幸 | Semi-automatic three-phase synchronous drop-out fuse |
| CN102412085A (en) * | 2010-09-20 | 2012-04-11 | 西门子公司 | Double-break electrical contact device and isolating switch using same |
| CN103646802A (en) * | 2013-05-03 | 2014-03-19 | 国家电网公司 | Sleeved-connected pin lock drop switch |
| CN103996584A (en) * | 2014-05-07 | 2014-08-20 | 湖北创三电气有限公司 | Automatic three-phase-synchronization-fall-off fuse protector |
| CN104681348A (en) * | 2015-03-23 | 2015-06-03 | 国网辽宁省电力有限公司丹东供电公司 | Burnout-preventing enhanced low-voltage isolation switch of power distribution transformer |
| CN106952714A (en) * | 2017-05-19 | 2017-07-14 | 肇庆胜尚知识产权服务有限公司 | A kind of high insulation safety type power transformer |
| CN107877526A (en) * | 2017-11-21 | 2018-04-06 | 宁波旺潮轴业有限公司 | A kind of manipulator |
| CN108922799A (en) * | 2018-06-16 | 2018-11-30 | 余磊 | Movable handgrip link rod |
-
2007
- 2007-03-22 CN CNU2007200838387U patent/CN201038102Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412085A (en) * | 2010-09-20 | 2012-04-11 | 西门子公司 | Double-break electrical contact device and isolating switch using same |
| CN102412085B (en) * | 2010-09-20 | 2014-09-10 | 西门子公司 | Double-break electrical contact device and isolating switch using same |
| CN102360998A (en) * | 2011-11-03 | 2012-02-22 | 余谋幸 | Semi-automatic three-phase synchronous drop-out fuse |
| CN102360998B (en) * | 2011-11-03 | 2012-10-31 | 余谋幸 | Semi-automatic three-phase synchronous drop-out fuse |
| CN103646802A (en) * | 2013-05-03 | 2014-03-19 | 国家电网公司 | Sleeved-connected pin lock drop switch |
| CN103996584A (en) * | 2014-05-07 | 2014-08-20 | 湖北创三电气有限公司 | Automatic three-phase-synchronization-fall-off fuse protector |
| CN103996584B (en) * | 2014-05-07 | 2015-12-30 | 湖北创三电气有限公司 | A kind of three-phase synchronous drop-out fuse automatically |
| CN104681348A (en) * | 2015-03-23 | 2015-06-03 | 国网辽宁省电力有限公司丹东供电公司 | Burnout-preventing enhanced low-voltage isolation switch of power distribution transformer |
| CN106952714A (en) * | 2017-05-19 | 2017-07-14 | 肇庆胜尚知识产权服务有限公司 | A kind of high insulation safety type power transformer |
| CN106952714B (en) * | 2017-05-19 | 2018-06-19 | 肇庆胜尚知识产权服务有限公司 | A kind of high insulation safety type power transformer |
| CN107877526A (en) * | 2017-11-21 | 2018-04-06 | 宁波旺潮轴业有限公司 | A kind of manipulator |
| CN108922799A (en) * | 2018-06-16 | 2018-11-30 | 余磊 | Movable handgrip link rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201038102Y (en) | Three-phase linkage drop-off type fuse | |
| CN209133912U (en) | A kind of isolated distribution box | |
| CN211208901U (en) | Wire clamp connecting structure of power box for substation | |
| CN202268663U (en) | Bridging over-current hardware of CT (Current Transformer) equipment and tubular bus bar for converter station | |
| CN204835359U (en) | Drive electrified installation device of bird ware | |
| CN102360998B (en) | Semi-automatic three-phase synchronous drop-out fuse | |
| CN110416941A (en) | A kind of activity terminal box of circuit cable | |
| CN203481707U (en) | Upper pile head drainage wire fixing rod | |
| CN201655727U (en) | Semi-automatic synchronized drop-out fuse | |
| CN105548618A (en) | Connecting device for power system current transmission test | |
| CN103996584B (en) | A kind of three-phase synchronous drop-out fuse automatically | |
| CN203839323U (en) | Fuse pedestal binding post device | |
| CN205051016U (en) | General earth bar with adjustable | |
| CN201639040U (en) | Electric connector for low-voltage circuit breaker test | |
| CN101807758B (en) | Test electric connector of low voltage breaker | |
| CN107910804B (en) | Rotating disc type insulating operating rod hanging frame | |
| CN200944385Y (en) | Triphase linkage drop-out fuse | |
| CN204424487U (en) | A kind of new copper nose | |
| CN213636884U (en) | Novel fire-taking tool for 10kV live-line work | |
| CN208835602U (en) | The fixation arm component of strain insulator mechanism for assembling-disassembling | |
| CN204333550U (en) | Current collector for sliding contact line | |
| CN203859080U (en) | Convenient intelligent air circuit breaker | |
| CN203747062U (en) | Transformer station ground wire clamp | |
| CN207398597U (en) | Bus adaption device | |
| CN101944695B (en) | Illumination busbar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20110322 |