CN204204617U - A kind of guide tracked current transformer - Google Patents
A kind of guide tracked current transformer Download PDFInfo
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- CN204204617U CN204204617U CN201420498375.0U CN201420498375U CN204204617U CN 204204617 U CN204204617 U CN 204204617U CN 201420498375 U CN201420498375 U CN 201420498375U CN 204204617 U CN204204617 U CN 204204617U
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Abstract
A kind of guide tracked current transformer of the utility model, the housing (1) of described instrument transformer is involuted by upper shell (1.1) and lower house (1.2), secondary coil (5) is vertically provided with in described housing (1), horizontal cross-under once copper bar (4) in the centre bore of described secondary coil (5), and one end of a copper bar (4) an and cross-under flexible conductor (3) on housing (1) is connected, the other end is connected with binding post (6), the lead-out wire of described secondary coil (5) is connected to the secondary outlet terminal (7) be installed on housing (1), and be connected with diode (8) between the lead-out wire of secondary coil (5), the exterior bottom of described upper shell (1.1) is provided with guide rail draw-in groove (1.1.1).A kind of guide tracked current transformer of the utility model, has and measures accurately, installation, wiring, safeguards advantage quickly and easily.
Description
Technical field
The utility model relates to a kind of current transformer, especially relates to a kind of current transformer adopting guide rail form to install, and for 0.66kV and following data center precision power distribution system to the collection of current signal, belongs to instrument transformer technical field.
Background technology
Existing market major part current transformer is mainly used in AC current collecting component products and has the features such as volume is little, quality is light, accuracy is high, capacity is large, and monitor cost-saving for user realizes multiloop, the feature of current most of current transformer is:
1, installation is adopted and is screwed, and need to hole on cabinet, and it is larger to take cabinet space;
2, the primary current of most of current transformer needs to wear cable, but because the restriction in aperture, possibly cannot pass when cable is thicker, and safeguards a large amount of manpower of needs and time;
3, current most of Current Transformer Secondary lead-out wire is directly drawn with RV flexible conductor, goes between long, and packaging is inconvenient, and in transportation RV flexible conductor easy fracture, cause the damage of instrument transformer, bring unnecessary loss to company and user;
4, the current transformer general secondary coiling number of turn is more, and if installation personnel careless manipulation is by instrument transformer second open circuit, open circuit voltage may work the mischief to equipment and personal safety.
So by transforming above-mentioned current transformer, a large amount of investments can be saved for user.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and provide a kind of and measure accurately, installation, wiring, maintenance be guide tracked current transformer quickly and easily.
The purpose of this utility model is achieved in that a kind of guide tracked current transformer, the housing of described instrument transformer is involuted by upper shell and lower house, vertically secondary coil is provided with in described housing, horizontal cross-under once copper bar in the centre bore of described secondary coil, and one end of a copper bar an and cross-under flexible conductor on housing is connected, the other end is connected with binding post.
A kind of guide tracked current transformer of the utility model, the lead-out wire of described secondary coil is connected to the secondary outlet terminal be installed on housing, and is connected with diode between the lead-out wire of secondary coil.
A kind of guide tracked current transformer of the utility model, the exterior bottom of described upper shell is provided with guide rail draw-in groove.
A kind of guide tracked current transformer of the utility model, described secondary outlet terminal is provided with two groups of pins, often organize pin and be provided with two, and two groups of pins connects one to one, wherein one group of pin is connected to the lead-out wire of secondary coil, is connected with diode between another group pin.
A kind of guide tracked current transformer of the utility model, described secondary outlet terminal has four pins, be respectively pin one, pin two, pin three and pin four, wherein pin one and pin three conducting, pin two and pin four conducting, described welding diode is between the pin three and pin four of secondary outlet terminal, and the lead-out wire of secondary coil is connected to pin one and the pin two of secondary outlet terminal.
A kind of guide tracked current transformer of the utility model, described binding post is a frame-type structure, and this frame-type structure is revolved is equipped with a screw, and one end of an above-mentioned copper bar is inserted in the frame-type structure of binding post.
A kind of guide tracked current transformer of the utility model, described binding post is provided with screw hole, and screw is screwed on binding post by this screw hole, and described binding post is embedded in the binding post draw-in groove of upper shell.
A kind of guide tracked current transformer of the utility model, a copper bar draw-in groove is provided with in described housing, a described copper bar draw-in groove is provided with the limited mouth for placing a copper bar, a cable draw-in groove is provided with in described housing, a described cable draw-in groove is provided with for the limited mouth to a placement flexible conductor, described housing is provided with secondary coil draw-in groove, described secondary coil draw-in groove is provided with the limited mouth for placing secondary coil, described housing is provided with secondary outlet terminal draw-in groove, described secondary outlet terminal draw-in groove is provided with the limited mouth for placing secondary outlet terminal, described housing is provided with binding post draw-in groove, described binding post draw-in groove is provided with the limited mouth for placing binding post.
A kind of guide tracked current transformer of the utility model, is cast with epoxy resin in described upper shell.
A kind of guide tracked current transformer of the utility model, the thickness of described epoxy resin layer is 2mm.
Compared with prior art, the beneficial effects of the utility model are:
The utility model can be installed on guide rail by guide rail draw-in groove easily, and it is extremely convenient therefore to install; By due to secondary coil is vertically placed, and by a copper bar, electric current is guided, therefore greatly reduce the thickness of instrument transformer, and realize being connected with binding post and test line by a flexible conductor, easy to connect; Meanwhile, realize drawing by secondary outlet terminal, be not easy to damage in transportation, and when using, grafting is convenient; In addition, by arranging diode, make when secondary winding is opened a way, diode is low resistance state, secondary winding short circuit, inhibits superpotential generation, thus achieves the object of proterctive equipment and personal safety.
Accompanying drawing explanation
Fig. 1 is the perspective view of the guide tracked current transformer of the utility model.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the front appearance figure of the guide tracked current transformer of the utility model.
Fig. 4 is the internal structure schematic diagram of the guide tracked current transformer of the utility model.
Fig. 5 is the utility model guide tracked current transformer housing copper bar draw-in groove schematic diagram.
Fig. 6 is the utility model guide tracked current transformer housing cable trough schematic diagram.
Fig. 7 is the utility model guide tracked current transformer housing secondary coil draw-in groove schematic diagram.
Fig. 8 is the utility model guide tracked current transformer housing secondary terminals draw-in groove schematic diagram.
Fig. 9 is the utility model guide tracked current transformer housing binding post draw-in groove schematic diagram.
Figure 10 is the utility model guide tracked current transformer housing M5 screw draw-in groove schematic diagram.
Figure 11 is a flexible conductor of the guide tracked current transformer of the utility model and the connection layout of copper bar.
Figure 12 is the secondary outlet terminal winding diagram of the guide tracked current transformer of the utility model.
Figure 13 is the guide tracked current transformer connection post of the utility model and a bus winding diagram.
Figure 14 is the assembling schematic diagram of the guide tracked current transformer of the utility model.
Figure 15 is the fundamental diagram of the guide tracked current transformer of the utility model.
Reference numeral in figure:
Housing 1, M3 tapping screw 2; A flexible conductor 3; A copper bar 4; Secondary coil 5; Binding post 6; Secondary outlet terminal 7; Diode 8; M5 screw 9; Secondary RV wire 10;
Upper shell 1.1, guide rail draw-in groove 1.1.1, upper shell binding post draw-in groove 1.1.2, upper casing secondary outlet terminal draw-in groove 1.1.3, upper shell copper bar draw-in groove 1.1.4, upper shell cable trough 1.1.5, upper shell M3 screw pole 1.1.6;
Lower house 1.2, lower house M3 screw hole 1.2.1.
Embodiment
See Fig. 1 ~ 15, the utility model relates to a kind of guide tracked current transformer, the housing 1 of described instrument transformer is involuted by upper shell 1.1 and lower house 1.2, secondary coil 5 is vertically provided with in described housing 1, horizontal cross-under once copper bar 4 in the centre bore of described secondary coil 5, and one end of a copper bar 4 an and cross-under flexible conductor 3 on housing 1 is connected, the other end is connected with binding post 6, the lead-out wire of described secondary coil 5 is connected to the secondary outlet terminal 7 be installed on housing 1, and is connected with diode 8 between the lead-out wire of secondary coil 5; The exterior bottom of described upper shell 1.1 is provided with guide rail draw-in groove 1.1.1, for being fixed by housing 1;
During use, one time copper bar 4 is connected with test line with binding post 6 by a flexible conductor 3, and the lead-out wire of secondary coil 5 is connected with rear end measuring circuit by secondary outlet terminal 7;
Below in conjunction with Fig. 1 ~ 14, above-mentioned execution mode is specifically addressed:
The guide tracked current transformer of the utility model includes housing 1 and is arranged at a flexible conductor 3, copper bar 4, secondary coil 5, binding post 6, secondary outlet terminal 7, diode 8, M5 screw 9, secondary RV wire 10 and the relevant installation parts in housing 1.
Described housing is by upper shell 1.1 and lower house about 1.2 is involutory forms, and the exterior bottom of described upper shell 1.1 is provided with guide rail draw-in groove 1.1.1, is provided with a copper bar draw-in groove 1.1.4 in described housing 1, a described copper bar draw-in groove 1.1.4 is provided with,
,
,
limited mouth, for placing a copper bar 4 and positioning it; Be provided with a cable draw-in groove 1.1.5 in described housing 1, a described cable draw-in groove 1.1.5 is provided with
,
,
,
four limited mouths, for positioning it placement flexible conductor 3, described housing 1 is provided with secondary coil draw-in groove 1.1.7, described secondary coil draw-in groove 1.1.7 is provided with
,
two limited mouths, for placing secondary coil 5 and positioning it, described housing 1 is provided with secondary outlet terminal draw-in groove 1.1.3, and described secondary outlet terminal draw-in groove 1.1.3 is provided with
,
two limited mouths, for placing secondary outlet terminal 7 and positioning it, described housing 1 is provided with binding post draw-in groove 1.1.2, and described binding post draw-in groove 1.1.2 is provided with
,
two limited mouths, for placing binding post 6 and to its conscientious location, described housing 1 is provided with M5 screw draw-in groove 1.1.8, described M5 screw draw-in groove 1.1.8 is provided with
,
two limited mouths;
Described binding post 6 is a frame-type structure, and this frame-type structure is revolved be equipped with a screw, concretely, described binding post 6 is provided with M5 screw hole, described M5 screw 9 is screwed on described binding post 6, and described binding post 6 is embedded in described upper shell 1.1 binding post draw-in groove 1.1.2, when needs connect, connecting line is inserted the binding post 6 of frame structure, then tighten screw can complete install fixing; One end of an above-mentioned copper bar 4 embeds in the frame-type structure of binding post 6, and the other end is connected to a flexible conductor 3, and described copper bar 4 is set with in described copper bar draw-in groove 1.1.4;
Described secondary outlet terminal 7 is provided with two groups of pins, often organize pin and be provided with two, and two groups of pins connect one to one, wherein one group of pin is connected to the lead-out wire of secondary coil 5, diode 8 is connected with between another group pin, concretely, described secondary outlet terminal 7 has four pins, be respectively pin one I1, pin two I2, pin three I3 and pin four I4, wherein pin one I1 and pin three I3 conducting, pin two I2 and pin four I4 conducting, described secondary outlet terminal 7 is embedded in upper shell secondary outlet terminal draw-in groove 1.1.3, on pin three I3 that described diode 8 is welded on described secondary outlet terminal 7 and pin four I4 two pins, the lead-out wire of secondary coil 5 connects pin one I1 and pin two I2 of described secondary outlet terminal 7, then test line is connected to by the secondary RV wire 10 be inserted in secondary outlet terminal 7 jack,
Described secondary coil 5 has two outlets, is respectively S1, S2, and S1 connects on the I3 pin of described secondary outlet terminal 7, and S2 connects on I4 pin, and described secondary coil 5 is placed on a described copper bar 4,
The thick epoxy resin of cast 2mm is needed after parts installation in described upper shell 1.1, described upper shell 1.1 is involutory with described lower house about 1.2, described upper shell 1.1 is provided with six M3 screw poles, described lower house 1.2 is provided with M3 six screw hole 1.1.6, described housing 1 is first fixed by the mode of ultrasonic bonding, and then fix with described M3 tapping screw 2, form housing 1.
Operation principle:
The operation principle of the guide tracked current transformer of the utility model as shown in figure 15, a windings in series of current transformer is in test line, I1 is the primary current of line current and current transformer, N1 is a number of turn of current transformer, I2 Current Transformer Secondary electric current (being generally 5mA, 2mA)
N2 is the secondary number of turn of current transformer, and Z2e is secondary circuit equipment and connects conductor impedance, and TVS is diode.When primary current flows to from current transformer P1 end, P2 brings out, and when secondary Z2e connects, by electromagnetic induction principle, secondary winding in current transformer has electric current I 2 to flow through from S1, through Z2e to S2, forms closed-loop path.Can obtain electric current I1 × N1=I2 in the ideal situation × N2 thus, so there is I1/I2=N1/N2=K, K is the no-load voltage ratio of current transformer.When primary current flows to from current transformer P1 end, P2 brings out, but during secondary winding open circuit, diode is low resistance state, secondary winding short circuit, inhibits superpotential generation, reaches the object of proterctive equipment and personal safety;
In addition: it should be noted that above-mentioned embodiment is only a prioritization scheme of this patent, any change that those skilled in the art does according to above-mentioned design or improvement, all within the protection range of this patent.
Claims (10)
1. a guide tracked current transformer, it is characterized in that: the housing (1) of described instrument transformer is involuted by upper shell (1.1) and lower house (1.2), secondary coil (5) is vertically provided with in described housing (1), horizontal cross-under once copper bar (4) in the centre bore of described secondary coil (5), and one end of a copper bar (4) an and cross-under flexible conductor (3) on housing (1) is connected, the other end is connected with binding post (6).
2. a kind of guide tracked current transformer as claimed in claim 1, it is characterized in that: the lead-out wire of described secondary coil (5) is connected to the secondary outlet terminal (7) be installed on housing (1), and is connected with diode (8) between the lead-out wire of secondary coil (5).
3. a kind of guide tracked current transformer as claimed in claim 1 or 2, is characterized in that: the exterior bottom of described upper shell (1.1) is provided with guide rail draw-in groove (1.1.1).
4. a kind of guide tracked current transformer as claimed in claim 2, it is characterized in that: described secondary outlet terminal (7) is provided with two groups of pins, often organize pin and be provided with two, and two groups of pins connect one to one, wherein one group of pin is connected to the lead-out wire of secondary coil (5), is connected with diode (8) between another group pin.
5. a kind of guide tracked current transformer as claimed in claim 4, it is characterized in that: described secondary outlet terminal (7) has four pins, be respectively pin one (I1), pin two (I2), pin three (I3) and pin four (I4), wherein pin one (I1) and pin three (I3) conducting, pin two (I2) and pin four (I4) conducting, described diode (8) is welded between the pin three (I3) of secondary outlet terminal (7) and pin four (I4), the lead-out wire of secondary coil (5) is connected to pin one (I1) and the pin two (I2) of secondary outlet terminal (7).
6. a kind of guide tracked current transformer as claimed in claim 3, is characterized in that: described binding post (6) is a frame-type structure, and this frame-type structure is revolved is equipped with a screw, and one end of an above-mentioned copper bar (4) is inserted in the frame-type structure of binding post (6).
7. a kind of guide tracked current transformer as claimed in claim 6, it is characterized in that: described binding post (6) is provided with screw hole, screw is screwed on binding post (6) by this screw hole, and described binding post (6) is embedded in the binding post draw-in groove (1.1.2) of upper shell (1.1).
8. a kind of guide tracked current transformer as claimed in claim 3, it is characterized in that: in described housing (1), be provided with a copper bar draw-in groove (1.1.4), a described copper bar draw-in groove (1.1.4) is provided with the limited mouth for placing a copper bar (4), a cable draw-in groove (1.1.5) is provided with in described housing (1), a described cable draw-in groove (1.1.5) is provided with for the limited mouth to a placement flexible conductor (3), described housing (1) is provided with secondary coil draw-in groove (1.1.7), described secondary coil draw-in groove (1.1.7) is provided with the limited mouth for placing secondary coil (5), described housing (1) is provided with secondary outlet terminal draw-in groove (1.1.3), described secondary outlet terminal draw-in groove (1.1.3) is provided with the limited mouth for placing secondary outlet terminal (7), described housing (1) is provided with binding post draw-in groove (1.1.2), described binding post draw-in groove (1.1.2) is provided with the limited mouth for placing binding post (6).
9. a kind of guide tracked current transformer as claimed in claim 8, is characterized in that: described upper shell is cast with epoxy resin in (1.1).
10. a kind of guide tracked current transformer as claimed in claim 9, is characterized in that: the thickness of described epoxy resin layer is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498375.0U CN204204617U (en) | 2014-09-01 | 2014-09-01 | A kind of guide tracked current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498375.0U CN204204617U (en) | 2014-09-01 | 2014-09-01 | A kind of guide tracked current transformer |
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| Publication Number | Publication Date |
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| CN204204617U true CN204204617U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420498375.0U Active CN204204617U (en) | 2014-09-01 | 2014-09-01 | A kind of guide tracked current transformer |
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| CN (1) | CN204204617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841738A (en) * | 2016-08-24 | 2017-06-13 | 国网山东省电力公司高唐县供电公司 | Ready-package blade type low-voltage current mutual inductor |
| CN107727917A (en) * | 2017-10-18 | 2018-02-23 | 江苏安科瑞电器制造有限公司 | Low-voltage open type double winding alternating current monitoring module |
-
2014
- 2014-09-01 CN CN201420498375.0U patent/CN204204617U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841738A (en) * | 2016-08-24 | 2017-06-13 | 国网山东省电力公司高唐县供电公司 | Ready-package blade type low-voltage current mutual inductor |
| CN107727917A (en) * | 2017-10-18 | 2018-02-23 | 江苏安科瑞电器制造有限公司 | Low-voltage open type double winding alternating current monitoring module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |