CN205303166U - Opening current transformer that can install with electricity - Google Patents

Opening current transformer that can install with electricity Download PDF

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Publication number
CN205303166U
CN205303166U CN201520945924.9U CN201520945924U CN205303166U CN 205303166 U CN205303166 U CN 205303166U CN 201520945924 U CN201520945924 U CN 201520945924U CN 205303166 U CN205303166 U CN 205303166U
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CN
China
Prior art keywords
quiet
semi
crossbeam
line card
ring housing
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Active
Application number
CN201520945924.9U
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Chinese (zh)
Inventor
林国营
张永旺
陈喆
赵伟
潘峰
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Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Priority to CN201520945924.9U priority Critical patent/CN205303166U/en
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Abstract

The utility model provides an opening current transformer that can install with electricity, the shell falls into two half barrels of butt joint as moving semi -ring casing and quiet semi -ring casing, two casings are connected for articulated at one of them butt joint position, the moving beam of longitudinal extension is equipped with at the opening part that moves the semi -ring casing, the quiet crossbeam of longitudinal extension is equipped with at the opening part of quiet semi -ring casing, quiet crossbeam and moving beam are the blocks and contact when two casing butt joints, open the breach of longitudinal extension respectively on moving beam contact surface and quiet crossbeam contact surface, be equipped with the ply -yarn drill that punctures in moving beam's breach, the ply -yarn drill punctures under being equipped with in the breach of quiet crossbeam, on, under puncture the ply -yarn drill and form to embrace a line hole to closing, on, the ply -yarn drill that punctures down all has and is used for pierceing the metal -cored metal tooth of generating line, opening current transformer is still on making, under puncture the ply -yarn drill and open or closed mechanism that opens and shuts. The utility model discloses it is insulating reliable, can firmly install on the generating line, can extensively be applicable to the occasion of measuring generating line primary current and generating line temperature.

Description

A kind of can the opening current transformer of charged installation
Technical field
This utility model relates to a kind of current transformer, particularly relate to a kind of can the opening current transformer of charged installation.
Background technology
Owing to opening or Open Type Electric Current Mutual Inductor can be installed without disconnecting bus of high pressure, bringing relatively convenience to user, therefore in recent years, this current transformer is widely used. From the product form of application at present, opening current transformer mainly has following two version:
The first version adopts the frame mode of general high voltage transformer, and this version is by being dielectrically separated from by a Secondary Winding, completes the survey calculation of primary current at secondary side. This version has the drawback that: if needing charged installation, it is necessary to the use of auxiliary mould and operation, installs comparatively numerous and diverse, it usually needs operating personnel dresses the operations involving high pressure working clothing of specialty, and stands on Live working Aerial Device and just can complete installation; It addition, high-low pressure need to reliably insulate, but because of opening part insulation weakness, shelf depreciation index specifies therefore there is bigger potential safety hazard hardly consistent with the industry " GB ".
The second version is the mode taking high pressure isoelectric level to measure, the problem which has evaded high-low pressure insulation, opening current transformer carries spring mechanism, during installation, operating personnel stands on the ground, just can be directly installed on a bus by simple auxiliary moulds such as insulating bars. But, this mode is owing to generally taking spring thread depressing mechanism, and spring thread depressing mechanism can because being exposed in air and reduce embracing line strength for a long time.
Additionally, existing line conductor cross section is generally less than normal, user is urgent to high voltage bus temperature survey demand, but, existing opening or Open Type Electric Current Mutual Inductor cannot realize the temperature survey to high voltage bus, to carry out temperature survey, it is necessary to adopt temperature sensor to measure separately, use inconvenient.
Utility model content
The purpose of this utility model is in that to provide that a kind of simple in construction, cost are low, insulation is reliable, simple installation, can improve embrace line strength can the opening current transformer of charged installation.
The purpose of this utility model realizes by the following technical solutions: a kind of can the opening current transformer of charged installation, shell and coil including short cylinder shaped, the sidewall of described shell is that double-decker forms the toroidal cavity holding coil, it is characterized in that: described shell is divided into half cylinder of two docking as dynamic semi-ring housing and quiet semi-ring housing, a described dynamic semi-ring housing and quiet semi-ring housing docking site wherein is for being articulated and connected, opening part at dynamic semi-ring housing is provided with the dynamic crossbeam along dynamic semi-ring housing longitudinal extension, opening part at quiet semi-ring housing is provided with the quiet crossbeam along quiet semi-ring housing longitudinal extension, described quiet crossbeam and described dynamic crossbeam are blocks and contact when two housing docking, the contact surface of dynamic crossbeam and the contact surface of quiet crossbeam have the breach of longitudinal extension, the breach of described dynamic crossbeam is provided with puncture line card, the breach of described quiet crossbeam is provided with lower puncture line card, on described, lower puncture line card is combined to form embraces string holes, on described, lower puncture line card is respectively provided with the metal-toothed metal-cored for thrusting bus, described opening current transformer also includes open-and-close mechanism, being operated by open-and-close mechanism makes semi-ring housing make relative to quiet semi-ring housing into rotation in hinge point, the lower open-shaped state of puncture line card is so that bus enters wherein, semi-ring housing is made to rotate relative to quiet semi-ring housing opposite direction and make again, lower puncture line card be apposition formed embrace string holes in case metal-toothed thrust bus metal-cored in.
This utility model is high pressure isoelectric level working method, utilize high pressure isoelectric level working method can avoid the weak problem of opening part insulation of the existing opening current transformer for general high voltage transformer frame mode, insulation is reliable, and this utility model adopts the open-and-close mechanism lift shell folding spring line ball to replace the existing opening current transformer for high pressure isoelectric level metering system of frame for movement, the metal-cored occlusion bus that the line card of use puncture simultaneously thrusts bus is locking fixing spacing, to strengthen embracing line strength, this utility model can be made to be firmly installed on high voltage bus, reliable operation. this utility model simple in construction, cost are low, be easily achieved, and are widely portable to measure the occasion of bus primary current and bus temperature.
As a kind of preferred implementation of the present utility model, described armful of string holes is flat hole, two housings embrace time involutory string holes bus is flattened so that metal-toothed thrust bus metal-cored in, described armful of string holes is positioned at the center of shell.
As a kind of embodiment of the present utility model, described open-and-close mechanism includes screw rod, the upper cap nut set up separately on screw rod two ends, lower nut and the nut that is fixed on screw rod, bar segment between described upper cap nut and nut is through moving crossbeam, and the bar segment between nut with lower nut through quiet crossbeam and is threadeded with it, then pass the quiet crossbeam described lower nut of installation.
A kind of improve as of the present utility model, described can the opening current transformer of charged installation also include for regulating the aperture adjustable mechanism embracing string holes aperture to adapt to different wire diameter bus.
As a kind of embodiment of the present utility model, described aperture adjustable mechanism includes described upper puncture line card, described lower puncture line card and a pair adjusting screw, described upper puncture line card and lower puncture line card are made up of the pad of arc and the metal-toothed being arranged on pad respectively, one of them adjusting screw is installed after nut through dynamic crossbeam and with it on the threaded pad being fixed on puncture line card again, and another adjusting screw is installed after nut through quiet crossbeam and with it on the threaded pad being fixed on lower puncture line card again, upper puncture line card and lower puncture line is driven to move to regulate the aperture embracing string holes by rotating screw cap respectively.
As further improvement of the utility model, being embedded with the thermocouple for measuring bus temperature at least one metal-toothed, described thermocouple connects high-pressure side acquisition module by wire.
This utility model can also do following improvement, it is respectively arranged at two ends with a cover plate at described quiet semi-ring housing, two cover plates are connected thus forming the installation cavity that half is cylinder-shaped with quiet crossbeam two ends respectively, and described wire and high-pressure side acquisition module are arranged in described installation cavity.
As a kind of embodiment of the present utility model, described coil is the flexible coil of complete annular.
As another embodiment of the present utility model, described coil is non-flexible coil, and dynamic semi-ring housing and quiet semi-ring housing make the two ends of this coil contact time involutory thus turning on whole coil.
Compared with prior art, this utility model has following significant effect:
(1) this utility model is high pressure isoelectric level working method, utilize high pressure isoelectric level working method can avoid the weak problem of opening part insulation of the existing opening current transformer for general high voltage transformer frame mode, insulation is reliable, and this utility model adopts the open-and-close mechanism lift shell folding spring line ball to replace the existing opening current transformer for high pressure isoelectric level metering system of frame for movement, the metal-cored occlusion bus that the line card of use puncture simultaneously thrusts bus is locking fixing spacing, to strengthen embracing line strength, this utility model can be made to be firmly installed on high voltage bus, reliable operation.
(2), when adopting insulating bar to be arranged on bus by this utility model, simple installation, efficiency are high.
(3) this utility model pre-buried thermocouple in metal-toothed so that this utility model, measuring and high voltage bus can be carried out thermometric, it is therefore not necessary to separately set temperature-measuring part, enhances the functional of product, practical.
This utility model simple in construction, cost is low, be easily achieved, and is widely portable to measure the occasion of bus primary current and bus temperature.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is one of front view of the present utility model;
Fig. 2 is the two of front view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 is perspective view of the present utility model;
Fig. 5 is one of this utility model scheme of installation;
Fig. 6 is the two of this utility model scheme of installation.
Detailed description of the invention
As shown in figs. 1 to 6, it is that this utility model is a kind of can the opening current transformer of charged installation, shell and coil including short cylinder shape, in the present embodiment, coil is the flexible coil of complete annular, specifically flexible Luo-coil 2, flexible Luo-coil 2 be one can the air core coil of any bending, it circumferentially embeds in the full circle housing of dynamic semi-ring housing 5 and the formation of quiet semi-ring housing 7, constitutes the relative bus Secondary Winding as a winding. the sidewall of shell is that double-decker forms the toroidal cavity holding coil, shell is divided into half cylinder of two docking as dynamic semi-ring housing 5 and quiet semi-ring housing 7, dynamic semi-ring housing 5 and quiet semi-ring housing 7 docking site wherein are for being articulated and connected, the jointed shaft of hinge point is removable pin 8, removable pin 8 is hinge structure, is movably connected with quiet semi-ring housing 7 by dynamic semi-ring housing 5. opening part at dynamic semi-ring housing 5 is provided with the dynamic crossbeam 6 along dynamic semi-ring housing 5 longitudinal extension, dynamic crossbeam 6 plays the fixing upper effect puncturing line card 1.1, also function to coordinate quiet semi-ring housing 7 simultaneously, provide drop-down and lifting force arm fulcrum effect for upper cap nut 4.1 and lower nut 4.2. opening part at quiet semi-ring housing 7 is provided with the quiet crossbeam 11 along quiet semi-ring housing 7 longitudinal extension, quiet crossbeam 11 and dynamic crossbeam 6 are blocks and contact when two housing docking, the contact surface of dynamic crossbeam 6 and the contact surface of quiet crossbeam 11 have the breach of longitudinal extension, the breach of dynamic crossbeam 6 is provided with puncture line card 1.1, the breach of quiet crossbeam 11 is provided with lower puncture line card 1.2, upper puncture line card 1.1 and lower puncture line card 1.2 are combined to form embraces string holes 10, embracing string holes 10 is flat hole, two housings embrace time involutory string holes 10 bus 9 is flattened so that metal-toothed 1.4 thrust bus 9 metal-cored in, embrace string holes 10 and be positioned at the center of shell.Upper and lower puncture line card is respectively provided with for thrusting the metal-cored metal-toothed of bus 1.4, opening current transformer also includes open-and-close mechanism, being operated by open-and-close mechanism makes semi-ring housing 5 rotate relative to quiet semi-ring housing 7 in hinge point and make the upper and lower open-shaped state of puncture line card so that bus 9 enters wherein, then make semi-ring housing 5 rotate relative to quiet semi-ring housing 7 opposite direction and make upper and lower puncture line card be apposition form armful string holes 10 in case metal-toothed 1.4 thrust bus 9 metal-cored in.
In the present embodiment, open-and-close mechanism includes screw rod 4, set up separately on screw rod 4 two ends upper cap nut 4.1, lower nut 4.3 and the nut 4.2 being fixed on screw rod 4, bar segment between upper cap nut 4.1 and nut 4.2 is through moving crossbeam 6, and the bar segment between nut 4.2 with lower nut 4.3 through quiet crossbeam 11 and is threadeded with it, pass quiet crossbeam 11 again and lower nut 4.3 is installed, rotate the stroke up and down of lower nut 4.3 adjustable screw.
Also include for regulating the aperture adjustable mechanism embracing string holes aperture to adapt to different wire diameter bus, aperture adjustable mechanism is adjustable needle insertion line card 1, specifically include puncture line card 1.1, lower puncture line card 1.2 and adjusting screw, upper puncture line card 1.1 and lower puncture line card 1.2 are made up of the pad of arc and the metal-toothed 1.4 being arranged on pad respectively, adjusting screw is installed after nut 1.3 through quiet crossbeam 11 and with it on the threaded pad being fixed on lower puncture line card 1.2 again, lower puncture line is driven to move the position making upper puncture line card and lower puncture line by rotating screw cap adjustable to regulate the aperture embracing string holes.
The thermocouple 3 for measuring bus temperature it is embedded with at least one metal-toothed 1.4, thermocouple 3 is a kind of miniature temperature sense sensor, in the present embodiment, thermocouple 3 is embedded in the metal-toothed of puncture line card 1.1, when the metal-toothed 1.4 of upper puncture line card 1.1 thrusts a bus metal-cored interior, it can effectively measure the temperature of a bus. Thermocouple 3 connects high-pressure side acquisition module by wire, it is respectively arranged at two ends with a cover plate 71 at quiet semi-ring housing 7, two cover plates 71 are connected thus forming the installation cavity that half is cylinder-shaped with quiet crossbeam 11 two ends respectively, and wire and high-pressure side acquisition module are arranged in installation cavity.
In other embodiments, coil can also be non-flexible coil, and dynamic semi-ring housing 5 and quiet semi-ring housing 7 make the two ends of this coil contact time involutory thus turning on whole coil; Aperture adjustable mechanism can also include another adjusting screw, and this adjusting screw is installed after nut through dynamic crossbeam and with it on the threaded pad being fixed on puncture line card again, and puncture line card can be made to move up and down.
Function and the operation principle of each building block of this utility model describe in detail as follows respectively: adjustable needle insertion line card 1 is the barbed line card in adjustable aperture, it is applicable to the high voltage bus of different wire diameters, is used for puncturing that bus external insulation layer, occlusion bus be locking fixing spacing and bus takes gentle bus pressure; Aperture adjustable mechanism is positioned at the center of circle of the shell of short cylinder shape, the half of aperture adjustable mechanism is positioned on dynamic semi-ring housing, second half is positioned on quiet semi-ring housing, the detailed process regulating the aperture embracing string holes is: rotating screw cap 1.3, regulate the lower upper-lower position puncturing line card 1.2, with the spacing regulated and between upper puncture line card 1.1 biting teeth, finally achieve and be suitable for the purpose that different wire diameter punctures; Adjustable needle insertion line card 1 forms the detailed process that high-voltage conducting wires is punctured: rotate screw rod 4, the lower pulling force that crossbeam 6 is formed is pressed for 4.1 times by upper cap nut, dynamic semi-ring housing 5 is driven to close to quiet semi-ring housing 7, centripetal enclasping force is formed again through its upper and lower two halves closing action, drive the gmatjpdumamics that the metal-toothed on adjustable needle insertion line card about 1 one side of something is formed, namely the upper metal-toothed punctured on line card and the metal-toothed on lower puncture line card are closed up, puncture the insulating barrier of high voltage bus 9 and thrust the metal wire in-core of high voltage bus 9, ultimately forming the effective puncture to bus.Flexible Luo-coil 2 is used for measuring primary current, and its signal transmits to the acquisition module of high-pressure side; Thermocouple 3 is embedded in the metal-toothed 1.4 of puncture line card 1.1, and completes the measurement of bus temperature, and its signal transmits to the acquisition module of high-pressure side.
Process of the present utility model is installed as follows: determine installation site and the wire diameter of high voltage bus 9, mix up the aperture of adjustable needle insertion line card 1; Turn screw rod 4 so that it is be in open mouth tongs shape state; This utility model to be installed is preset on insulating bar; Lift insulating bar and this utility model jaw is inserted in bus to be installed, translation pushes away insulating bar and makes high voltage bus 9 fall in the groove puncturing line card; The insulating bar that turn is connected with screw rod 4, the dynamic semi-ring housing 5 of lower conjunction synthesizes closed loop with quiet semi-ring housing 7, and compresses adjustable needle insertion line card 1, to form the puncture to high voltage bus 9; When screw rod 4 malcompression adjustable needle insertion line card 1 is formed and effectively punctures, the insulating bar that another root of turn is connected with the nut 1.3 of adjustable needle insertion line card 1, again compress and puncture line card, to form reliable puncture; Removing insulating bar, namely this utility model completes to install.
Embodiment of the present utility model is not limited to this; according to foregoing of the present utility model; ordinary technical knowledge and customary means according to this area; without departing under the above-mentioned basic fundamental thought premise of this utility model; open-and-close mechanism of the present utility model, aperture adjustable mechanism concrete structure also there is other embodiment; therefore this utility model can also make the amendment of other various ways, replacement or change, all falls within this utility model rights protection scope.

Claims (10)

1. one kind can the opening current transformer of charged installation, shell and coil including short cylinder shaped, the sidewall of described shell is that double-decker forms the toroidal cavity holding coil, it is characterized in that: described shell is divided into half cylinder of two docking as dynamic semi-ring housing and quiet semi-ring housing, a described dynamic semi-ring housing and quiet semi-ring housing docking site wherein is for being articulated and connected, opening part at dynamic semi-ring housing is provided with the dynamic crossbeam along dynamic semi-ring housing longitudinal extension, opening part at quiet semi-ring housing is provided with the quiet crossbeam along quiet semi-ring housing longitudinal extension, described quiet crossbeam and described dynamic crossbeam are blocks and contact when two housing docking, the contact surface of dynamic crossbeam and the contact surface of quiet crossbeam have the breach of longitudinal extension, the breach of described dynamic crossbeam is provided with puncture line card, the breach of described quiet crossbeam is provided with lower puncture line card, on described, lower puncture line card is combined to form embraces string holes, on described, lower puncture line card is respectively provided with the metal-toothed metal-cored for thrusting bus, described opening current transformer also includes open-and-close mechanism, being operated by open-and-close mechanism makes semi-ring housing make relative to quiet semi-ring housing into rotation in hinge point, the lower open-shaped state of puncture line card is so that bus enters wherein, semi-ring housing is made to rotate relative to quiet semi-ring housing opposite direction and make again, lower puncture line card be apposition formed embrace string holes in case metal-toothed thrust bus metal-cored in.
2. according to claim 1 can the opening current transformer of charged installation, it is characterised in that: described armful of string holes is flat hole, two housings embrace time involutory string holes bus is flattened so that metal-toothed thrust bus metal-cored in.
3. according to claim 2 can the opening current transformer of charged installation, it is characterised in that: described armful of string holes is positioned at the center of shell.
4. according to any one of claims 1 to 3 can the opening current transformer of charged installation, it is characterized in that: described open-and-close mechanism includes screw rod, the upper cap nut set up separately on screw rod two ends, lower nut and the nut that is fixed on screw rod, bar segment between described upper cap nut and nut is through moving crossbeam, and the bar segment between nut with lower nut through quiet crossbeam and is threadeded with it, then pass the quiet crossbeam described lower nut of installation.
5. according to claim 4 can the opening current transformer of charged installation, it is characterised in that: described can the opening current transformer of charged installation also include for regulating the aperture adjustable mechanism embracing string holes aperture to adapt to different wire diameter bus.
6. according to claim 5 can the opening current transformer of charged installation, it is characterized in that: described aperture adjustable mechanism includes described upper puncture line card, described lower puncture line card and a pair adjusting screw, described upper puncture line card and lower puncture line card are made up of the pad of arc and the metal-toothed being arranged on pad respectively, one of them adjusting screw is installed after nut through dynamic crossbeam and with it on the threaded pad being fixed on puncture line card again, and another adjusting screw is installed after nut through quiet crossbeam and with it on the threaded pad being fixed on lower puncture line card again, upper puncture line card and lower puncture line is driven to move to regulate the aperture embracing string holes by rotating screw cap respectively.
7. according to claim 6 can the opening current transformer of charged installation, it is characterised in that: being embedded with the thermocouple for measuring bus temperature at least one metal-toothed, described thermocouple connects high-pressure side acquisition module by wire.
8. according to claim 7 can the opening current transformer of charged installation, it is characterized in that: be respectively arranged at two ends with a cover plate at described quiet semi-ring housing, two cover plates are connected thus forming the installation cavity that half is cylinder-shaped with quiet crossbeam two ends respectively, and described wire and high-pressure side acquisition module are arranged in described installation cavity.
9. according to claim 8 can the opening current transformer of charged installation, it is characterised in that: described coil is the flexible coil of complete annular.
10. according to claim 8 can the opening current transformer of charged installation, it is characterised in that: described coil is non-flexible coil, and dynamic semi-ring housing and quiet semi-ring housing make the two ends of this coil contact time involutory thus turning on whole coil.
CN201520945924.9U 2015-11-24 2015-11-24 Opening current transformer that can install with electricity Active CN205303166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520945924.9U CN205303166U (en) 2015-11-24 2015-11-24 Opening current transformer that can install with electricity

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Application Number Priority Date Filing Date Title
CN201520945924.9U CN205303166U (en) 2015-11-24 2015-11-24 Opening current transformer that can install with electricity

Publications (1)

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CN205303166U true CN205303166U (en) 2016-06-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105355406A (en) * 2015-11-24 2016-02-24 广东电网有限责任公司电力科学研究院 Opening current transformer capable of being installed in powered-on mode
CN112735737A (en) * 2020-12-09 2021-04-30 安徽华能集团电器有限公司 Open type high saturation voltage transformer clamping cable and convenient to install

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105355406A (en) * 2015-11-24 2016-02-24 广东电网有限责任公司电力科学研究院 Opening current transformer capable of being installed in powered-on mode
CN112735737A (en) * 2020-12-09 2021-04-30 安徽华能集团电器有限公司 Open type high saturation voltage transformer clamping cable and convenient to install

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