CN103680902A - Current transformer assembly - Google Patents
Current transformer assembly Download PDFInfo
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- CN103680902A CN103680902A CN201310568734.5A CN201310568734A CN103680902A CN 103680902 A CN103680902 A CN 103680902A CN 201310568734 A CN201310568734 A CN 201310568734A CN 103680902 A CN103680902 A CN 103680902A
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- current transformer
- fastener
- mounting seat
- transformer assembly
- projection
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Abstract
The invention discloses a current transformer assembly. The current transformer assembly comprises a transformer body and a mounting base, wherein the transformer body comprises a hollow cylindrical closed shell and a magnetizer arranged in the shell, a wiring port part is arranged on one side of the shell, the mounting base is arranged on the equipment body, a protrusion is arranged on the end face of the closed shell, a clamping buckle is arranged on the mounting base, the clamping buckle is buckled to the protrusion to fix the transformer body and the mounting base, the transformer body and the mounting base are fixed in a mode that the protrusion is buckled tightly by the clamping buckle, and therefore when faults happen to the transformer and the transformer needs to be maintained, a worker can detach the transformer body just by opening the clamping buckle, detaching can be performed without tools, the problems that in the prior art, when the current transformer assembly is fixed, inspected and maintained through bolts, the current transformer assembly can not be detached easily, and time and labor are wasted are solved, work time is greatly saved, and maintenance time is shortened.
Description
Technical field
The present invention relates to current transformer technical field, specifically a kind of Current Transformer Assembly.
Background technology
Size of current great disparity in the circuit of generating, power transformation, transmission of electricity, distribution and electricity consumption; from several peaces, to a little Wan An, have; for ease of measuring, protect and controlling, need to be converted to more unified electric current; adopt current transformer just to play current transformation and electrical isolation effect; the effect of current transformer (Current transformer is called for short CT) is the larger primary current of numerical value can be converted to the secondary current that numerical value is less by certain no-load voltage ratio, is used for protecting, the purposes such as measurement.
Current transformer and transformer ' s type are also seemingly according to electromagnetic induction principle work, transformer conversion be voltage and current transformer conversion be electric current, current transformer connects the winding (number of turn is N1) of tested electric current, is called winding (or former limit winding, armature winding); The winding (number of turn is N2) that connects measuring instrument is called secondary winding (or secondary winding, secondary winding), and the current ratio of current transformer once winding current I and secondary winding I, makes actual current compare K.Current ratio when current transformer is worked under rated current, current transformer rated transformation ratio, represents with Kn, Kn=I n/ I n.
In current power distribution network application, there is a large portion user to adopt paired cable powering mode, installation and the measurement problem of current transformer have been brought, for above problem, China Patent No. is 201220307154.1, the utility model that name is called < < bushing current transformer > > discloses a kind of bushing current transformer, it comprises: the shell of sealing and magnetic conductor, described shell further comprises base and housing, described housing is the cylinder of hollow, described magnetic conductor is located in described housing, described base is located at the lateral surface of described housing, described base is provided with Wiring port, described hull outside is provided with at least three stators, described stator is provided with fixing hole, and pass through screw, bolt and equipment connection, because the ratio comparatively dense of installing after equipment, often can be distributed in together by a lot of current transformers, the stator in the outside that this employing is outstanding comes can take a lot of spaces with equipment connection, can cause space to cause not the interface having to install, and be bolted and be inconvenient to dismantle afterwards, to maintenance, bring very large trouble, waste time and energy.
Summary of the invention
For this reason, the present invention will solve current transformer in reality and take up room after installing, and is inconvenient to dismantle, the problem that maintenance gets up to waste time and energy, thus it is little to provide a kind of installation to take up room, and can be without the current transformer of instrument dismounting.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of Current Transformer Assembly, comprise instrument transformer body and mounting seat, described instrument transformer body comprises the cylindrical enclosure body of hollow and the magnetic conductor that described enclosure interior arranges, described housing one side is provided with terminals oral area, described mounting seat is arranged on equipment body, on the end face of described housing, be provided with projection, in described mounting seat, be provided with fastener, described fastener is buckled in described projection and by described current transformer body and described mounting seat and fixes.
Described fastener is the elastic strip with compression elasticity, after described elastic strip interlude bending, form a latch closure corresponding with described projection, described elastic strip two ends are connected with mounting seat is rotatable, when described latch closure is buckled in the projection on described instrument transformer body, described elastic strip compresses described instrument transformer body.
Described projection arranges 4-8, and described fastener arranges 2-4.
Described projection and described fastener are all uniformly distributed setting.
Described projection is provided with 6, and described fastener correspondence is provided with 2, described in each fastener can with any two adjacent protruding buckles.
On the contact-making surface of described mounting seat and described current transformer body, be also provided with a plurality of cushions.
Described magnetic conductor comprises iron core and secondary winding.
Described housing is the plastic casing of flame resistance.
Described housing height is 30-50mm, and its entire outer diameter is 110-130mm, and its internal diameter is 70-90mm.
Technique scheme of the present invention has the following advantages compared to existing technology,
(1) Current Transformer Assembly of the present invention, comprise instrument transformer body and mounting seat, described instrument transformer body comprises the cylindrical enclosure body of hollow and the magnetic conductor that described enclosure interior arranges, described housing one side is provided with terminals oral area, described mounting seat is arranged on equipment body, on the end face of described closure casing, be provided with projection, in described mounting seat, be provided with fastener, described fastener is buckled in described projection and by described current transformer body and described mounting seat and fixes, the mode fixing by projection described in described fastener fastening, instrument transformer is being broken down need to overhaul time, staff only need to detain out described fastener and described current transformer body can have been disassembled, realized without instrument and having dismantled, solved and while being bolted Inspection and maintenance in prior art, be not easy dismounting, the problem of bothersome effort, greatly saved the operating time, shortened preventive maintenance time.
(2) Current Transformer Assembly of the present invention, described fastener is the elastic strip with compression elasticity, after described elastic strip interlude bending, form a latch closure corresponding with described projection, described elastic strip two ends are connected with mounting seat is rotatable, when described latch closure is buckled in the projection on described instrument transformer body, described elastic strip compresses described instrument transformer body; Described elastic strip is buckled in and in described projection, does not take surrounding space, often after electric equipment, interface compares comparatively dense, so elastic strip of the present invention can meet the object that firmly fixes described current transformer body, again can conserve space, meet the needs of intensive installation.
(3) Current Transformer Assembly of the present invention, on the contact-making surface of described mounting seat and described current transformer body, be also provided with a plurality of cushions, described cushion can separate described mounting seat and current transformer body, and play cushioning effect, prevent that long-term extruding from causing the damage of device in instrument transformer device.
(4) Current Transformer Assembly of the present invention, described magnetic conductor comprises iron core and secondary winding, the present invention only has secondary winding, using the current transformer body cover of hollow on the line as a winding, simple in structure, take up room little, the plastic casing that described housing is flame resistance, moisture proof, stable performance, Maintenance free.
Accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the stereogram of one embodiment of the invention;
In figure, Reference numeral is expressed as: 1-mounting seat, 2-cushion, 3-elastic strip, 4-projection, 5-current transformer body, 6-terminals oral area.
Embodiment
The embodiment of Current Transformer Assembly of the present invention is provided below.
Current Transformer Assembly of the present invention, as shown in Figure 1, comprise instrument transformer body and mounting seat 1, described mounting seat 1 is preferably arranged to triangle, described instrument transformer body comprises the cylindrical enclosure body of hollow and the magnetic conductor that described enclosure interior arranges, the inner hollow of described housing is also preferably cylindrical, with being installed, circuit more fits, described housing one side is provided with terminals oral area 6, the preferred setting downwards of interface on described terminals oral area 6, described mounting seat 1 is preferably bolted on equipment body, on the end face of described closure casing, be provided with projection 4, in described mounting seat 1, be provided with fastener, described fastener is buckled on described protruding 4 and by described current transformer body 5 and described mounting seat 1 and fixes, by projection 4 modes that fix described in described fastener fastening, instrument transformer is being broken down need to overhaul time, staff only need to detain out described fastener and described current transformer body 5 can have been disassembled, realized without instrument and having dismantled, solved and while being bolted Inspection and maintenance in prior art, be not easy dismounting, the problem of bothersome effort, greatly saved the operating time, shortened preventive maintenance time.
On the basis of the Current Transformer Assembly described in embodiment 1, described fastener is the elastic strip 3 with compression elasticity, the preferred stainless steel that adopts of described elastic strip 3, after the 3 interludes bendings of described elastic strip, form one with described protruding 4 corresponding latch closures, described elastic strip 3 two ends are connected with mounting seat 1 is rotatable, when described latch closure is buckled in the projection 4 on described instrument transformer body, described elastic strip 3 compresses described instrument transformer body; Described fastener is preferably symmetrical arranged and can be arranged on different directions, at least arrange two, meet the needs of the described instrument transformer body of clamping, described elastic strip 3 is buckled on described protruding 4 and does not take surrounding space, often after electric equipment, interface compares comparatively dense, so elastic strip 3 of the present invention can meet the object that firmly fixes described current transformer body 5, again can conserve space, meet the needs of intensive installation.
On the basis of the Current Transformer Assembly described in above embodiment, described protruding 4 are preferably provided with 6, described fastener correspondence is preferably provided with 2, described protruding 4 and described fastener be preferably all uniformly distributed setting, described in each fastener can with any two adjacent projection 4 buckles, described fastener is preferably arranged on upper and lower both sides, and the fastener of downside is preferably through described terminals oral area 6; On the contact-making surface of described mounting seat 1 and described current transformer body 5, be also provided with a plurality of cushions 2, the preferred silica gel that adopts of described cushion 2, can separate described mounting seat 1 and current transformer body 5, and play cushioning effect, prevent that long-term extruding from causing the damage of device in instrument transformer device.
The execution mode that can convert as other, described protruding 4 can arrange 4 or 5 or 7 or 8, and described fastener can arrange 3 or 4.
Described magnetic conductor comprises iron core and secondary winding, and described iron core preferably adopts silicon steel sheet, and its magnetic flux density is high, can also adopt other soft magnetic metals, the present invention only has secondary winding, using the current transformer body of hollow 5 covers on the line as a winding, simple in structure, take up room little.
Described housing is the plastic casing of flame resistance, and described terminals oral area 6 adopts epoxide resin vacuum cast to be fixed in described ring-shaped shell with described current transformer body 5, moisture proof, stable performance, Maintenance free.
Described housing is preferably highly 37mm, and its entire outer diameter is 126mm preferably, and its internal diameter is preferably set to 82mm, the execution mode that can convert as other, the height of described shell can also be 30-50mm, and its entire outer diameter can be 110-130mm, and its internal diameter can be 70-90mm.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And the apparent variation of being extended out thus or change are still among the protection range in the invention.
Claims (9)
1. a Current Transformer Assembly, comprise instrument transformer body and mounting seat, described instrument transformer body comprises the cylindrical enclosure body of hollow and the magnetic conductor that described enclosure interior arranges, described housing one side is provided with terminals oral area, it is characterized in that, described mounting seat is arranged on equipment body, on the end face of described housing, is provided with projection, in described mounting seat, be provided with fastener, described fastener is buckled in described projection and by described current transformer body and described mounting seat and fixes.
2. Current Transformer Assembly according to claim 1, it is characterized in that, described fastener is the elastic strip with compression elasticity, after described elastic strip interlude bending, form a latch closure corresponding with described projection, described elastic strip two ends are connected with mounting seat is rotatable, when described latch closure is buckled in the projection on described instrument transformer body, described elastic strip compresses described instrument transformer body.
3. Current Transformer Assembly according to claim 1, is characterized in that, described projection arranges 4-8, and described fastener arranges 2-4.
4. Current Transformer Assembly according to claim 1, is characterized in that, described projection and described fastener are all uniformly distributed setting.
5. Current Transformer Assembly according to claim 2, is characterized in that, described projection is provided with 6, and described fastener correspondence is provided with 2, described in each fastener can with any two adjacent protruding buckles.
6. Current Transformer Assembly according to claim 5, is characterized in that, is also provided with a plurality of cushions on the contact-making surface of described mounting seat and described current transformer body.
7. Current Transformer Assembly according to claim 6, is characterized in that, described magnetic conductor comprises iron core and secondary winding.
8. according to the Current Transformer Assembly described in claim 1-7 any one, it is characterized in that the plastic casing that described housing is flame resistance.
9. Current Transformer Assembly according to claim 8, is characterized in that, described housing height is 30-50mm, and its entire outer diameter is 110-130mm, and its internal diameter is 70-90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568734.5A CN103680902A (en) | 2013-11-15 | 2013-11-15 | Current transformer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568734.5A CN103680902A (en) | 2013-11-15 | 2013-11-15 | Current transformer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103680902A true CN103680902A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310568734.5A Pending CN103680902A (en) | 2013-11-15 | 2013-11-15 | Current transformer assembly |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202736723U (en) * | 2012-06-27 | 2013-02-13 | 北京微能汇通电力技术有限公司 | Bushing current transformer |
| CN202736721U (en) * | 2012-06-27 | 2013-02-13 | 北京微能汇通电力技术有限公司 | Bushing current transformer |
| CN203444968U (en) * | 2013-11-15 | 2014-02-19 | 国网山东省电力公司青岛供电公司 | Current transformer assembly |
-
2013
- 2013-11-15 CN CN201310568734.5A patent/CN103680902A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202736723U (en) * | 2012-06-27 | 2013-02-13 | 北京微能汇通电力技术有限公司 | Bushing current transformer |
| CN202736721U (en) * | 2012-06-27 | 2013-02-13 | 北京微能汇通电力技术有限公司 | Bushing current transformer |
| CN203444968U (en) * | 2013-11-15 | 2014-02-19 | 国网山东省电力公司青岛供电公司 | Current transformer assembly |
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Application publication date: 20140326 |