CN204088218U - A kind of column type circuit breaker of integrated current instrument transformer - Google Patents
A kind of column type circuit breaker of integrated current instrument transformer Download PDFInfo
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- CN204088218U CN204088218U CN201420464070.8U CN201420464070U CN204088218U CN 204088218 U CN204088218 U CN 204088218U CN 201420464070 U CN201420464070 U CN 201420464070U CN 204088218 U CN204088218 U CN 204088218U
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- extinguishing unit
- current transformer
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- 239000012212 insulator Substances 0.000 claims abstract description 97
- 239000000835 fiber Substances 0.000 claims abstract description 55
- 230000006698 induction Effects 0.000 claims description 40
- 230000005611 electricity Effects 0.000 claims description 33
- 239000004020 conductor Substances 0.000 claims description 24
- 238000002955 isolation Methods 0.000 abstract description 5
- 239000013307 optical fiber Substances 0.000 description 19
- 238000000605 extraction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
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Abstract
The utility model discloses a kind of column type circuit breaker of integrated current instrument transformer, comprise: at least one current transformer (2) and breaker body, described breaker body comprises at least one arc extinguishing unit (1) and supporting insulator (3), described supporting insulator (3) is connected with described arc extinguishing unit (1) and supports described arc extinguishing unit (1), described current transformer (2) is fixedly installed on the outside of described breaker body, and the current path of described breaker body is through described current transformer (2), described supporting insulator (3) is embedded with the connection line of optic fibre (6) be connected with described current transformer (2).The utility model makes whole system compact conformation, reduces floor space, is particularly suitable for the Integrated predict model of column type circuit breaker summation current transformer in intelligent substation, particularly the Integrated predict model of isolation circuit breakers summation current transformer.
Description
Technical field
The utility model relates to power product correlative technology field, particularly a kind of column type circuit breaker of integrated current instrument transformer.
Background technology
At present in the representative configuration of transformer station, high pressure column type circuit breaker inlet wire and the general equal configuration isolation switch of outgoing line side and earthed switch.Isolation circuit breakers is as a kind of special high pressure column type circuit breaker, and on the basis of column type circuit breaker, innovation proposes, and has become IEC standard.Traditional isolating switch function i ntegration enters in column type circuit breaker by it, line voltage distribution is born with the fracture after circuit breaker drop-out current, and add earthed switch and realize the ground connection that electric current cut-offs rear original system high-voltage end, while enhancing system availability, reduce system footprint area.
But the current transformer of measurement circuitry electric current and column type circuit breaker separate configurations in prior art, whole system floor space is still larger.
Utility model content
Based on this, be necessary to fail current transformer to be integrated on column type circuit breaker well to cause the technical problem that entire system floor space is larger for prior art, a kind of column type circuit breaker of integrated current instrument transformer is provided.
A kind of column type circuit breaker of integrated current instrument transformer, comprise: at least one current transformer and breaker body, described breaker body comprises at least one arc extinguishing unit and supporting insulator, described supporting insulator is connected with described arc extinguishing unit and supports described arc extinguishing unit, described current transformer is fixedly installed on the outside of described breaker body, and the current path of described breaker body is through described current transformer, described supporting insulator is embedded with the connection line of optic fibre be connected with described current transformer.
Further, described current transformer is enclosed within the current path of described breaker body.
Further, described current transformer is enclosed within the current path of described breaker body, be specially: described arc extinguishing unit is arranged on above described supporting insulator and bearing of trend is identical, the current output terminal of described arc extinguishing unit is connected by pivot flange with described supporting insulator, described current transformer is enclosed within described arc extinguishing unit, and is fixed on the upper surface of described pivot flange.
Further, described current transformer is enclosed within described breaker body, be specially: described arc extinguishing unit is arranged on above described supporting insulator and bearing of trend is identical, the current output terminal of described arc extinguishing unit and described supports insulative sub-connection, the electricity end that enters of described arc extinguishing unit is provided with into electric end flanges, described current transformer is fixed on the lower surface into electric end flanges, described current transformer is enclosed within described arc extinguishing unit, and described connection line of optic fibre is embedded in described arc extinguishing unit and described supporting insulator.
Further, described current transformer is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit is two, two described arc extinguishing units and the arc extinguishing unit connector of conduction conduction T-shaped by connects, described arc extinguishing unit connector comprises conduction mutually and is connected to form the lateral connection portion of T-type structure and vertical connecting portion, the two ends in described lateral connection portion are connected with an end of two described arc extinguishing units respectively, one end of described vertical connecting portion and described supports insulative sub-connection, the other end is connected with described lateral connection portion, and the end that described arc extinguishing unit is connected with described lateral connection portion is close end;
Current transformer described at least one is enclosed within the close end of described arc extinguishing unit, or current transformer described at least one is enclosed within the junction in described arc extinguishing unit and described lateral connection portion, or current transformer described at least one is enclosed within described lateral connection portion.
Further, described current transformer is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit is two, two described arc extinguishing units and the arc extinguishing unit connector of conduction conduction T-shaped by connects, described arc extinguishing unit connector comprises conduction mutually and is connected to form the lateral connection portion of T-type structure and vertical connecting portion, the two ends in described lateral connection portion are connected with an end of two described arc extinguishing units respectively, one end of described vertical connecting portion and described supports insulative sub-connection, the other end is connected with described lateral connection portion, and described arc extinguishing unit is distal portion away from the end in described lateral connection portion;
Current transformer described at least one is fixed on the distal portion of described arc extinguishing unit, and described connection line of optic fibre is embedded in described arc extinguishing unit and described supporting insulator.
Further, described current transformer is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit is two, comprise the first arc extinguishing unit and the second arc extinguishing unit, described first arc extinguishing unit and the arc extinguishing unit connector of conduction T-shaped by conducts electricity with described second arc extinguishing unit and is connected, described arc extinguishing unit connector comprises conduction mutually and is connected to form the lateral connection portion of T-type structure and vertical connecting portion, the two ends in described lateral connection portion are connected with an end of described first arc extinguishing unit and an end of described second arc extinguishing unit respectively, one end of described vertical connecting portion and described supports insulative sub-connection, the other end is connected with described lateral connection portion, the end that described supporting insulator is connected with described vertical connecting portion is the high voltage end conducted electricity with described vertical connecting portion, the end that described first arc extinguishing unit is connected with described lateral connection portion is the first close end, the end that described second arc extinguishing unit is connected with described lateral connection portion is the second close end, and described first close end to be insulated with described lateral connection portion by insulating trip and is connected, described second close end is connected with described lateral connection portion direct conduction,
Current transformer described at least one is enclosed within the high voltage end of described supporting insulator, or current transformer described at least one is enclosed within the junction of described supporting insulator and described vertical connecting portion, or current transformer described at least one is enclosed within described vertical connecting portion;
The conductor of drawing from described first close end to conduct electricity with described vertical connecting portion in the below of described current transformer and is connected.
Further, described current transformer is arranged on the side of described breaker body, and from the current output terminal of described arc extinguishing unit or enter conductor that electricity end draws through described electronic current mutual inductor.
Further, described current transformer is arranged on the side of described breaker body, be specially: described arc extinguishing unit is arranged on above described supporting insulator and bearing of trend is identical, the current output terminal of described arc extinguishing unit is connected by pivot flange with described supporting insulator, described current transformer is fixed on the outside of described pivot flange, and the conductor of drawing from the current output terminal of described arc extinguishing unit passes described current transformer.
Further, described current transformer is arranged on the side of described breaker body, be specially: described arc extinguishing unit is arranged on above described supporting insulator and bearing of trend is identical, the electricity end that enters of described arc extinguishing unit is provided with into electric end flanges, the outside of electric end flanges is entered described in described current transformer is fixed on, pass described current transformer from the conductor entering the extraction of electricity end of described arc extinguishing unit, and described connection line of optic fibre is embedded in described arc extinguishing unit and described supporting insulator.
Further, described supporting insulator comprises the ground end as earthing potential and the high voltage end as high-voltage, described supporting insulator is connected with described arc extinguishing unit by described high voltage end, described connection line of optic fibre embeds in described supporting insulator, extend to described high voltage end from described ground end, and described connection line of optic fibre is connected with described current transformer after described high voltage end stretches out.
Further; described current transformer is electronic current mutual inductor; comprise containment vessel and electro-optic device; induction coil is provided with in described containment vessel; and described induction coil comprises air core coil and/or iron-core coil; described electro-optic device one end is connected with described induction coil, and the other end is connected with described connection line of optic fibre.
Further, described current transformer also comprise be arranged in described containment vessel get can coil, one end of described electro-optic device can be connected by coil with described induction coil and described getting respectively.
Further, described current transformer is electronic current mutual inductor, and comprise containment vessel and be arranged on the induction coil in described containment vessel, described induction coil comprises sensor fibre, and described induction coil is connected with described connection line of optic fibre.
Further, also comprise earthed switch, described earthed switch one end is connected with described arc extinguishing unit, other end ground connection.
Further, also comprise and to be connected with described supporting insulator lower end and to support the support of described supporting insulator.
The utility model is by embedding in supporting insulator by the connection line of optic fibre be connected with current transformer, thus without the need to being the extra setting parts of connection line of optic fibre, improve the integrated level of column type circuit breaker and current transformer, make whole system compact conformation, reduce floor space, be particularly suitable for the Integrated predict model of column type circuit breaker summation current transformer in intelligent substation, particularly the Integrated predict model of isolation circuit breakers summation current transformer.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of column type circuit breaker of integrated current instrument transformer;
Fig. 2 is the structural representation of the second most preferred embodiment of the present utility model;
Fig. 3 is the structural representation of the 3rd most preferred embodiment of the present utility model;
Fig. 4 is the structural representation with an embodiment of two arc extinguishing units of the present utility model;
Fig. 5 is the structural representation with another embodiment of two arc extinguishing units of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Be illustrated in figure 1 a kind of structural representation of column type circuit breaker of integrated current instrument transformer, comprise: at least one current transformer 2 and breaker body, described breaker body comprises at least one arc extinguishing unit 1 and supporting insulator 3, described supporting insulator 3 is connected with described arc extinguishing unit 1 and supports described arc extinguishing unit 1, described current transformer 2 is fixedly installed on the outside of described breaker body, and the current path of described breaker body is through described current transformer 2, described supporting insulator 3 is embedded with the connection line of optic fibre 6 be connected with described current transformer 2.
Current transformer 2 is for measuring electric current, arc extinguishing unit 1 is for drop-out current, supporting insulator 3 is for supporting arc extinguishing unit 1, current transformer 2 and ensureing insulation against ground, and embedded connection line of optic fibre 6 connects current transformer 2, for data communication and/or the laser power supply of current transformer 2.
Wherein, connection line of optic fibre 6 refers to and adopts optical fiber as connecting line, and one optical fiber or multiply optical fiber can be adopted as connection line of optic fibre 6, and at connection line of optic fibre 6 outer wrap protective layer.By the connection line of optic fibre 6 be connected with current transformer 2 is embedded in supporting insulator 3 in the utility model, improve the integrated level of column type circuit breaker and current transformer, make whole system compact conformation, reduce floor space.Meanwhile, owing to current transformer to be arranged on the outside of breaker body and supporting insulator 3 and arc extinguishing unit 1, and current transformer 2 is independent of above-mentioned breaker body, only makes the current path of arc extinguishing unit 1 through current transformer 2.Therefore current transformer 2 can independently manufacture, and all brings great convenience when installation and maintenance equipment.
Wherein in an embodiment, described current transformer 2 is enclosed within the current path of described breaker body.
Current transformer 2 is enclosed within the circuit pathways of breaker body, namely the current path of arc extinguishing unit 1 is equivalent to through described current transformer 2, then current transformer 2 can respond to the electromagnetic field that the electric current that guided by arc extinguishing unit 1 produces, thus realizes current measurement.Meanwhile, because current transformer 2 is enclosed within the circuit pathways of breaker body, therefore it can very easily be separated with breaker body, thus greatly reduces the difficulty of installation and maintenance.
Preferably, described current transformer 2 is enclosed within the current path of described breaker body, be specially: described arc extinguishing unit 1 is arranged on above described supporting insulator 3 and bearing of trend is identical, the current output terminal 11 of described arc extinguishing unit 1 is connected by pivot flange 7 with described supporting insulator 3, described current transformer 2 is enclosed within described arc extinguishing unit 1, and is fixed on the upper surface of described pivot flange 7.
Wherein, the upper end of arc extinguishing unit 1 is for entering electricity end 12, and lower end is current output terminal 11, then the entirety of arc extinguishing unit 1 is the current path of breaker body, and therefore, current transformer 2 is enclosed within arc extinguishing unit 1, and namely current transformer 2 is enclosed within the current path of breaker body.
Wherein in an embodiment, described current transformer 2 is enclosed within the current path of described breaker body, be specially: described arc extinguishing unit 1 is arranged on above described supporting insulator 3 and bearing of trend is identical, the current output terminal 11 of described arc extinguishing unit 1 is connected with described supporting insulator 3, the electricity end 12 that enters of described arc extinguishing unit 1 is provided with into electric end flanges 9, described current transformer 2 is enclosed within described arc extinguishing unit 1, and the lower surface be fixed on into electric end flanges 9, and described connection line of optic fibre 6 is embedded in described arc extinguishing unit 1 and described supporting insulator 3.
Be illustrated in figure 4 the structural representation with an embodiment of two arc extinguishing units of the present utility model, wherein in an embodiment, described current transformer 2 is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit 1 is two, two described arc extinguishing units 1 and arc extinguishing unit connector 10 of conduction T-shaped by conducts electricity and connects, described arc extinguishing unit connector 10 comprises conduction mutually and is connected to form lateral connection portion 101 and the vertical connecting portion 102 of T-type structure, an end of the two ends in described lateral connection portion 101 arc extinguishing unit 1 described with two is respectively connected, one end of described vertical connecting portion 102 is connected with described supporting insulator 3, and the end that described arc extinguishing unit 1 is connected with described lateral connection portion 101 is close end 13;
Current transformer 2 described at least one is enclosed within the close end 13 of described arc extinguishing unit 1, or current transformer 2 described at least one is enclosed within the junction in described arc extinguishing unit 1 and described lateral connection portion 101, or current transformer 2 described at least one is enclosed within described lateral connection portion 101.
Wherein, arc extinguishing unit 1 is two, wherein, as shown in Figure 4, electric current from the arc extinguishing unit 1 in left side, through lateral connection portion 101, can flow out from the arc extinguishing unit 1 on right side, or electric current from the arc extinguishing unit 1 on right side, through lateral connection portion 101, can flow out from the arc extinguishing unit 1 in left side.Therefore, two arc extinguishing units 1 and lateral connection portion 101 constitute the current path of breaker body, and no matter current transformer 2 is enclosed within any place in two arc extinguishing units 1 and lateral connection portion 101, be enclosed within described breaker body current path on.
Preferably, current transformer 2 is two, and entangles the close end 13 of two arc extinguishing units 1 respectively.
Wherein in an embodiment, described current transformer 2 is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit 1 is two, two described arc extinguishing units 1 and arc extinguishing unit connector 10 of conduction T-shaped by conducts electricity and connects, described arc extinguishing unit connector 10 comprises conduction mutually and is connected to form lateral connection portion 101 and the vertical connecting portion 102 of T-type structure, an end of the two ends in described lateral connection portion 101 arc extinguishing unit 1 described with two is respectively connected, one end of described vertical connecting portion 102 is connected with described supporting insulator 3, and described arc extinguishing unit 1 is distal portion 14 away from the end in described lateral connection portion 101;
Current transformer 2 described at least one is fixed on the distal portion 14 of described arc extinguishing unit 1, and described connection line of optic fibre 6 is embedded in described arc extinguishing unit 1 and described supporting insulator 3.
Because two arc extinguishing units 1 and lateral connection portion 101 constitute the current path of breaker body, no matter current transformer 2 is enclosed within any place in two arc extinguishing units 1 and lateral connection portion 101, be be enclosed within described breaker body current path on, therefore, can current transformer 2 be enclosed within distal portion 14, connection line of optic fibre 6 be embedded in described arc extinguishing unit 1 and described supporting insulator 3 simultaneously.
Be illustrated in figure 5 the structural representation with another embodiment of two arc extinguishing units of the present utility model, wherein in an embodiment, described current transformer 2 is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit 1 is two, comprise the first arc extinguishing unit 110 and the second arc extinguishing unit 120, described first the arc extinguishing unit 110 and arc extinguishing unit connector 10 of conduction T-shaped by conducts electricity with described second arc extinguishing unit 120 and is connected, described arc extinguishing unit connector 10 comprises conduction mutually and is connected to form lateral connection portion 101 and the vertical connecting portion 102 of T-type structure, the two ends in described lateral connection portion 101 are connected with an end of described first arc extinguishing unit 110 and an end of described second arc extinguishing unit 120 respectively, one end of described vertical connecting portion 102 is connected with described supporting insulator 3, the end that described supporting insulator 3 is connected with described vertical connecting portion 102 is the high voltage end 31 conducted electricity with described vertical connecting portion 102, the end that described first arc extinguishing unit 110 is connected with described lateral connection portion 101 is the first close end 111, the end that described second arc extinguishing unit 110 is connected with described lateral connection portion 101 is the second close end 121, and described first close end 111 is insulated with described lateral connection portion 101 by insulating trip 11 and is connected, described second close end 121 is connected with described lateral connection portion 101 direct conduction,
Current transformer 2 described at least one is enclosed within the high voltage end 31 of described supporting insulator 3, or current transformer 2 described at least one is enclosed within the junction of described supporting insulator 3 and described vertical connecting portion 102, or current transformer 2 described at least one is enclosed within described vertical connecting portion 102;
The conductor 15 of drawing from described first close end 111 to conduct electricity with described vertical connecting portion 102 in the below of described current transformer 2 and is connected.
Wherein, high voltage end 31 is conductions, and the first close end 111 is insulated with lateral connection portion 101 by insulating trip 11 and is connected, and the second close end 121 is connected with lateral connection portion 101 direct conduction.Therefore, electric current enters from the first arc extinguishing unit 110, successively by the first close end 111, conductor 15, vertical connecting portion 102, lateral connection portion 101, second close end 121, finally flows out from the second arc extinguishing unit 120.Or electric current enters from the second arc extinguishing unit 120, successively by the second close end 121, lateral connection portion 101, vertical connecting portion 102, conductor 15, first close end 111, finally flow out from the first arc extinguishing unit 110.Therefore the first arc extinguishing unit 110, first close end 111, conductor 15, vertically connecting portion 102, lateral connection portion 101, second close end 121 and the second arc extinguishing unit 120 constitute the current path of breaker body.
Conductor 15 conducts electricity with described vertical connecting portion 102 in the below of described current transformer 2 and is connected, namely conductor 15 can be connected with high voltage end 31 in the below of current transformer 2, because high voltage end 31 conducts electricity, therefore be equivalent to conductor 15 conduct electricity with vertical connecting portion 102 and be connected, certainly, conductor 15 also can enter in the below of current transformer 2 and directly be connected with vertical connecting portion 102.
Wherein in an embodiment, described current transformer 2 is arranged on the side of described breaker body, and from the current output terminal 11 of described arc extinguishing unit 1 or enter conductors that electricity end 12 draws through described electronic current mutual inductor 2.
Arc extinguishing unit 1 upper end is for entering electricity end 12, lower end is current output terminal 11, from described arc extinguishing unit 1 enter electricity end 12 or namely current output terminal 11 conductor of drawing is equivalent to the current path of arc extinguishing unit 1 through described current transformer 2 through described current transformer 2, the electromagnetic field that electric current current transformer 2 can being responded to guided by arc extinguishing unit 1 produces, thus realize current measurement.Relative to the design be enclosed within by current transformer 2 on the current path of breaker body, the volume of the current transformer 2 of the present embodiment can be less, therefore whole system more compact structure, and floor space is less.
Wherein in an embodiment, described current transformer 2 is arranged on the side of described breaker body, be specially: described arc extinguishing unit 1 is arranged on above described supporting insulator 3 and bearing of trend is identical, the current output terminal 11 of described arc extinguishing unit 1 is connected by pivot flange 7 with described supporting insulator 3, described current transformer 2 is fixed on the outside of described pivot flange 7, and the conductor of drawing from the current output terminal 11 of described arc extinguishing unit 1 passes described current transformer 2.
The conductor of drawing from the current output terminal 11 of described arc extinguishing unit 1 passes described current transformer 2, then electric current enters, by entering current transformer 2 after arc extinguishing unit 1 after current output terminal 11 flows out from the electricity end 12 that enters of arc extinguishing unit 1.
Preferably, current transformer 2 is fixedly connected with described pivot flange 7 by connector 8.
Wherein in an embodiment, described current transformer 2 is arranged on the side of described breaker body, be specially: described arc extinguishing unit 1 is arranged on above described supporting insulator 3 and bearing of trend is identical, the electricity end 12 that enters of described arc extinguishing unit 1 is provided with into electric end flanges 9, the outside of electric end flanges 9 is entered described in described current transformer 2 is fixed on, pass described current transformer 2 from the conductor entering electricity end 12 extraction of described arc extinguishing unit 1, and described connection line of optic fibre 6 is embedded in described arc extinguishing unit 1 and described supporting insulator 3.
Pass described current transformer 2 from the conductor entering electricity end 12 extraction of described arc extinguishing unit 1, then then electric current first enters into electricity end 12 through current transformer 2, and by flowing out from current output terminal 11 after arc extinguishing unit 1.
Preferably, current transformer 2 by with the similar connector of connector 8 with enter electric end flanges 9 and be fixedly connected with.
Wherein in an embodiment, described supporting insulator 3 comprises the ground end 32 as earthing potential and the high voltage end 31 as high-voltage, described supporting insulator 3 is connected with described arc extinguishing unit 1 by described high voltage end 31, described connection line of optic fibre 6 embeds in described supporting insulator 3, extend to described high voltage end 31 from described ground end 32, and described connection line of optic fibre 6 is connected with described current transformer 2 after described high voltage end 31 stretches out.
Current transformer 2 can adopt non-electrical type current transformer (i.e. traditional type current transformer) or electronic current mutual inductor.
Described current transformer 2 is electronic current mutual inductor; comprise containment vessel 21 and electro-optic device 22; induction coil is provided with in described containment vessel 21; and described induction coil comprises air core coil and/or iron-core coil; described electro-optic device 22 one end is connected with described induction coil, and the other end is connected with described connection line of optic fibre 6.
Electro-optic device 22 is converted to light signal for the signal of telecommunication exported by induction coil and is exported by connection line of optic fibre 6.Electro-optic device 22 leaves the interface be connected with connection line of optic fibre 6.
Wherein, iron-core coil is preferably the coil that the iron core type low power current transformer in GB GB/T 20840.8 adopts.
Induction coil can adopt the combination of air core coil, iron-core coil varying number, to meet the requirement of power system measuring and protection.
Wherein in an embodiment, described current transformer 2 is electronic current mutual inductor, also comprise be arranged in described containment vessel 21 get can coil, one end of described electro-optic device 22 can be connected by coil with described induction coil and described getting respectively.
Getting energy coil by arranging, the electric current of arc extinguishing unit 1 can be changed and think that electro-optic device 22 is powered.Electro-optic device 22, getting energy coil, works under the driving of laser or ultracapacitor.
Wherein in an embodiment, the induction coil that described current transformer 2 comprises containment vessel 21 and is arranged in described containment vessel 21, described induction coil comprises sensor fibre, and described induction coil is connected with described connection line of optic fibre 6.
When induction coil adopts sensor fibre, its direct output optical signal, therefore without the need to electro-optic device 22.
Induction coil can adopt the combination of sensor fibre varying number, to meet the requirement of power system measuring and protection.
Wherein in an embodiment, also comprise earthed switch 5, the ground connection of arc extinguishing unit 1 when described earthed switch 5 works as isolation circuit breakers for column type circuit breaker, described earthed switch 5 one end is connected with described arc extinguishing unit 1, other end ground connection.
Wherein in an embodiment, also comprise and to be connected with described supporting insulator 3 lower end and to support the support 4 of described supporting insulator 3.
During configuration earthed switch 5, support 4 is also for supported grounding switch 5.
If Fig. 1 is the first most preferred embodiment of the present utility model, column type circuit breaker is integrated with air core coil and/or the iron-core coil electronic current mutual inductor as induction coil, electronic current mutual inductor is enclosed within outside arc extinguishing unit 1, specifically, comprise an arc extinguishing unit 1 of placement perpendicular to the ground, electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6, the earthed switch 5 of support 4 and apolegamy.Arc extinguishing unit 1, electronic current mutual inductor 2, the earthed switch 5 of the supporting insulator 3 of optical fiber built-in connecting line 6 and apolegamy be mechanically connected integrated after, be placed on support 4.
Electronic current mutual inductor 2 machinery independently manufactured is fixed and is enclosed within arc extinguishing unit 1, and the current path entered between electricity end 12 and current output terminal 11 passes electronic current mutual inductor 2.Electronic current mutual inductor 2 comprises containment vessel 21 and electro-optic device 22.Be provided with induction coil in containment vessel 21, induction coil adopts air core coil and/or iron-core coil.Separately be provided with in containment vessel 21 and get and can provide electric energy to electro-optic device by coil; Electro-optic device 22 is close to containment vessel 21 and is placed, and required electric energy can coil and/or energy supply laser provide by getting.The supporting insulator 3 of optical fiber built-in connecting line 6 supports arc extinguishing unit 1 and electronic current mutual inductor 2.Connection line of optic fibre 6 is connected with electronic current mutual inductor 2, and the current signal that electronic current mutual inductor 2 is responded to is drawn by connection line of optic fibre 6, and connection line of optic fibre 6 is also the path of energy supply laser simultaneously, provides electric energy needed for electro-optic device 22.
Be illustrated in figure 2 the structural representation of the second most preferred embodiment of the present utility model, column type circuit breaker is integrated with the electronic current mutual inductor 2 adopting air core coil and/or iron-core coil as induction coil, electronic current mutual inductor 2 is placed in the side of supporting insulator 3, specifically, comprise an arc extinguishing unit 1 of placement perpendicular to the ground, electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6, the earthed switch 5 of support 4 and apolegamy.Arc extinguishing unit 1, electronic current mutual inductor 2, the earthed switch 5 of the supporting insulator 3 of optical fiber built-in connecting line 6 and apolegamy be mechanically connected integrated after, be placed on support 4.
The independent electronic current mutual inductor 2 manufactured is mechanically anchored in the junction of arc extinguishing unit 1 and supporting insulator 3, and the conductor (not shown) that the current output terminal 11 of arc extinguishing unit 1 is drawn passes electronic current mutual inductor 2.Electronic current mutual inductor 2 is connected and fixed by connector 8 and pivot flange 7.Electronic current mutual inductor 2 comprises containment vessel 21 and electro-optic device 22, is provided with induction coil in containment vessel 21, and induction coil adopts air core coil and/or iron-core coil.Separately be provided with in containment vessel 21 and get and can provide electric energy to electro-optic device by coil; Electro-optic device is close to instrument transformer body and is placed, and required electric energy can coil and/or energy supply laser provide by getting.The supporting insulator 3 of optical fiber built-in connecting line 6 supports arc extinguishing unit 1 and electronic current mutual inductor 2, connection line of optic fibre 6 is connected with electronic current mutual inductor 2, the current signal that electronic current mutual inductor 2 is responded to is drawn by connection line of optic fibre 6, connection line of optic fibre 6 is also the path of energy supply laser simultaneously, provides electric energy needed for electro-optic device.
Be illustrated in figure 3 the structural representation of the 3rd most preferred embodiment of the present utility model, column type circuit breaker is integrated with the electronic current mutual inductor 2 adopting optical fiber as induction coil, and electronic current mutual inductor 2 is enclosed within outside arc extinguishing unit 1.Specifically comprise an arc extinguishing unit 1 of placement perpendicular to the ground, electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6, the earthed switch 5 of support 4 and apolegamy.The arc extinguishing unit 1 of high pressure column type circuit breaker, electronic current mutual inductor 2, the earthed switch 5 of the supporting insulator 3 of optical fiber built-in connecting line 6 and apolegamy be mechanically connected integrated after, be placed on support 4.
The independent electronic current mutual inductor 2 manufactured is mechanically anchored in arc extinguishing unit 1 and supporting insulator 3 junction, and the current path entered between electricity end 12 and current output terminal 11 passes electronic current mutual inductor 2.Electronic current mutual inductor 2 comprises containment vessel 21, and is arranged on the induction coil in containment vessel 21.Induction coil adopts sensor fibre, is positioned at containment vessel 21, due to output optical signal, therefore without the need to electro-optic device.The supporting insulator 3 of optical fiber built-in connecting line 6 supports arc extinguishing unit 1 and electronic current mutual inductor 2, and embedded connection line of optic fibre 6 is connected with electronic current mutual inductor 2, is drawn by transformer induced current signal by connection line of optic fibre 6.
Be illustrated in figure 4 the structural representation with an embodiment of two arc extinguishing units of the present utility model.Column type circuit breaker is integrated with and comprises air core coil and/or iron-core coil as induction coil, or comprises the electronic current mutual inductor 2 of fiber optic coils as induction coil, and electronic current mutual inductor 2 is enclosed within outside arc extinguishing unit 1.Specifically, two arc extinguishing units 1 of placement parallel to the ground are comprised, at least one electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6, support 4.Arc extinguishing unit 1, electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6 be mechanically connected integrated after, be placed on support 4.
Independent electronic current mutual inductor 2 machinery manufactured is fixed and is enclosed within the close end 13 of arc extinguishing unit 1, is positioned on the current path of breaker body.Electronic current mutual inductor 2 comprises containment vessel 21, and is arranged on the induction coil in containment vessel 21.The supporting insulator 3 of optical fiber built-in connecting line 6 supports two arc extinguishing units 1 and electronic current mutual inductor 2, and embedded connection line of optic fibre 6 is connected with electronic current mutual inductor 2, is drawn by transformer induced current signal by connection line of optic fibre 6.
If Fig. 5 is the structural representation with another embodiment of two arc extinguishing units of the present utility model.Column type circuit breaker is integrated with and comprises air core coil and/or iron-core coil as induction coil, or comprises the electronic current mutual inductor 2 of fiber optic coils as induction coil, and electronic current mutual inductor 2 is enclosed within outside supporting insulator 3.Specifically, two arc extinguishing units 1 of placement parallel to the ground are comprised, at least one electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6, support 4.Arc extinguishing unit 1, electronic current mutual inductor 2, the supporting insulator 3 of optical fiber built-in connecting line 6 be mechanically connected integrated after, be placed on support 4.
Independent electronic current mutual inductor 2 machinery manufactured is fixed and is enclosed within the high voltage end 31 of supporting insulator 3, is positioned on the current path of breaker body.This current path is by the first arc extinguishing unit 110, and conductor 15, the high voltage end 31 of supporting insulator 3, T-shaped conducting connecting part 10 and the second arc extinguishing unit 120 form.Electronic current mutual inductor 2 comprises containment vessel 21, and is arranged on the induction coil in containment vessel 21.The supporting insulator 3 of optical fiber built-in connecting line 6 supports two arc extinguishing units 1 and electronic current mutual inductor 2, and embedded connection line of optic fibre 6 is connected with electronic current mutual inductor 2, is drawn by transformer induced current signal by connection line of optic fibre 6.
The utility model achieves the Miniaturization Design of column type circuit breaker summation current transformer, efficiently reduces the floor space of system.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (16)
1. the column type circuit breaker of an integrated current instrument transformer, it is characterized in that, comprise: at least one current transformer (2) and breaker body, described breaker body comprises at least one arc extinguishing unit (1) and supporting insulator (3), described supporting insulator (3) is connected with described arc extinguishing unit (1) and supports described arc extinguishing unit (1), described current transformer (2) be fixedly installed on described breaker body outside, and the current path of described breaker body is through described current transformer (2), described supporting insulator (3) is embedded with the connection line of optic fibre (6) be connected with described current transformer (2).
2. the column type circuit breaker of integrated current instrument transformer according to claim 1, is characterized in that, described current transformer (2) is enclosed within the current path of described breaker body.
3. the column type circuit breaker of integrated current instrument transformer according to claim 2, it is characterized in that, described current transformer (2) is enclosed within described breaker body, be specially: described arc extinguishing unit (1) is arranged on described supporting insulator (3) top and bearing of trend is identical, the current output terminal (11) of described arc extinguishing unit (1) is connected by pivot flange (7) with described supporting insulator (3), described current transformer (2) is enclosed within described arc extinguishing unit (1), and is fixed on the upper surface of described pivot flange (7).
4. the column type circuit breaker of integrated current instrument transformer according to claim 2, it is characterized in that, described current transformer (2) is enclosed within the current path of described breaker body, be specially: described arc extinguishing unit (1) is arranged on described supporting insulator (3) top and bearing of trend is identical, the current output terminal (11) of described arc extinguishing unit (1) is connected with described supporting insulator (3), electricity end (12) that enters of described arc extinguishing unit (1) is provided with into electric end flanges (9), described current transformer (2) is enclosed within described arc extinguishing unit (1), and the lower surface be fixed on into electric end flanges (9), and described connection line of optic fibre (6) is embedded in described arc extinguishing unit (1) and described supporting insulator (3).
5. the column type circuit breaker of integrated current instrument transformer according to claim 2, is characterized in that, described current transformer (2) is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit (1) is two, two described arc extinguishing units (1) and the arc extinguishing unit connector (10) of conduction conduction T-shaped by connects, described arc extinguishing unit connector (10) comprises conduction mutually and is connected to form lateral connection portion (101) and the vertical connecting portion (102) of T-type structure, the two ends of described lateral connection portion (101) are connected with an end of two described arc extinguishing units (1) respectively, one end of described vertical connecting portion (102) is connected with described supporting insulator (3), the end that described arc extinguishing unit (1) is connected with described lateral connection portion (101) is close end (13),
Current transformer described at least one (2) is enclosed within the close end (13) of described arc extinguishing unit (1), or current transformer described at least one (2) is enclosed within the junction of described arc extinguishing unit (1) and described lateral connection portion (101), or current transformer described at least one (2) is enclosed within described lateral connection portion (101).
6. the column type circuit breaker of integrated current instrument transformer according to claim 1, is characterized in that, described current transformer (2) is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit (1) is two, two described arc extinguishing units (1) and the arc extinguishing unit connector (10) of conduction conduction T-shaped by connects, described arc extinguishing unit connector (10) comprises conduction mutually and is connected to form lateral connection portion (101) and the vertical connecting portion (102) of T-type structure, the two ends of described lateral connection portion (101) are connected with an end of two described arc extinguishing units (1) respectively, one end of described vertical connecting portion (102) is connected with described supporting insulator (3), described arc extinguishing unit (1) is distal portion (14) away from the end of described lateral connection portion (101),
Current transformer described at least one (2) is fixed on the distal portion (14) of described arc extinguishing unit (1), and described connection line of optic fibre (6) is embedded in described arc extinguishing unit (1) and described supporting insulator (3).
7. the column type circuit breaker of integrated current instrument transformer according to claim 2, is characterized in that, described current transformer (2) is enclosed within the current path of described breaker body, is specially:
Described arc extinguishing unit (1) is two, comprise the first arc extinguishing unit (110) and the second arc extinguishing unit (120), described first arc extinguishing unit (110) and the arc extinguishing unit connector (10) of conduction T-shaped by conducts electricity with described second arc extinguishing unit (120) and is connected, described arc extinguishing unit connector (10) comprises conduction mutually and is connected to form lateral connection portion (101) and the vertical connecting portion (102) of T-type structure, the two ends of described lateral connection portion (101) are connected with an end of described first arc extinguishing unit (110) and an end of described second arc extinguishing unit (120) respectively, one end of described vertical connecting portion (102) is connected with described supporting insulator (3), the end that described supporting insulator (3) is connected with described vertical connecting portion (102) is the high voltage end (31) conducted electricity with described vertical connecting portion (102), the end that described first arc extinguishing unit (110) is connected with described lateral connection portion (101) is the first close end (111), the end that described second arc extinguishing unit (110) is connected with described lateral connection portion (101) is the second close end (121), and described first close end (111) to be insulated with described lateral connection portion (101) by insulating trip (11) and is connected, described second close end (121) is connected with described lateral connection portion (101) direct conduction,
Current transformer described at least one (2) is enclosed within the high voltage end (31) of described supporting insulator (3), or current transformer described at least one (2) is enclosed within the junction of described supporting insulator (3) and described vertical connecting portion (102), or current transformer described at least one (2) is enclosed within described vertical connecting portion (102);
The conductor (15) of drawing from described first close end (111) conducts electricity with described vertical connecting portion (102) in the below of described current transformer (2) and is connected.
8. the column type circuit breaker of integrated current instrument transformer according to claim 1, it is characterized in that, described current transformer (2) is arranged on the side of described breaker body, and from the current output terminal (11) of described arc extinguishing unit (1) or enter conductor that electricity end (12) draws through described current transformer (2).
9. the column type circuit breaker of integrated current instrument transformer according to claim 8, it is characterized in that, described current transformer (2) is arranged on the side of described breaker body, be specially: described arc extinguishing unit (1) is arranged on described supporting insulator (3) top and bearing of trend is identical, the current output terminal (11) of described arc extinguishing unit (1) is connected by pivot flange (7) with described supporting insulator (3), described current transformer (2) is fixed on the outside of described pivot flange (7), the conductor of drawing from the current output terminal (11) of described arc extinguishing unit (1) passes described current transformer (2).
10. the column type circuit breaker of integrated current instrument transformer according to claim 8, it is characterized in that, described current transformer (2) is arranged on the side of described arc extinguishing unit (1), be specially: described arc extinguishing unit (1) is arranged on described supporting insulator (3) top and bearing of trend is identical, electricity end (12) that enters of described arc extinguishing unit (1) is provided with into electric end flanges (9), the outside of electric end flanges (9) is entered described in described current transformer (2) is fixed on, described current transformer (2) is passed from the electric conductor holding (12) to draw that enters of described arc extinguishing unit (1), and described connection line of optic fibre (6) is embedded in described arc extinguishing unit (1) and described supporting insulator (3).
The column type circuit breaker of 11. integrated current instrument transformers according to claim 1, it is characterized in that, described supporting insulator (3) comprises the ground end (32) as earthing potential and the high voltage end (31) as high-voltage, described supporting insulator (3) is connected with described arc extinguishing unit (1) by described high voltage end (31), described connection line of optic fibre (6) embeds in described supporting insulator (3), described high voltage end (31) is extended to from described ground end (32), and described connection line of optic fibre (6) is connected with described current transformer (2) after described high voltage end (31) stretches out.
The column type circuit breaker of 12. integrated current instrument transformers according to claim 1; it is characterized in that; described current transformer (2) is electronic current mutual inductor; comprise containment vessel (21) and electro-optic device (22); described containment vessel is provided with induction coil in (21); and described induction coil comprises air core coil and/or iron-core coil; described electro-optic device (22) one end is connected with described induction coil, and the other end is connected with described connection line of optic fibre (6).
The column type circuit breaker of 13. integrated current instrument transformers according to claim 12; it is characterized in that; described current transformer (2) also comprise be arranged in described containment vessel (21) get can coil, one end of described electro-optic device (22) can be connected by coil with described induction coil and described getting respectively.
The column type circuit breaker of 14. integrated current instrument transformers according to claim 1; it is characterized in that; described current transformer (2) is electronic current mutual inductor; the induction coil comprising containment vessel (21) and be arranged in described containment vessel (21); described induction coil comprises sensor fibre, and described induction coil is connected with described connection line of optic fibre (6).
The column type circuit breaker of 15. integrated current instrument transformers according to claim 1, is characterized in that, also comprises earthed switch (5), and described earthed switch (5) one end is connected with described arc extinguishing unit (1), other end ground connection.
The column type circuit breaker of 16. integrated current instrument transformers according to claim 1, is characterized in that, also comprises and to be connected with described supporting insulator (3) lower end and to support the support (4) of described supporting insulator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464070.8U CN204088218U (en) | 2014-08-15 | 2014-08-15 | A kind of column type circuit breaker of integrated current instrument transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464070.8U CN204088218U (en) | 2014-08-15 | 2014-08-15 | A kind of column type circuit breaker of integrated current instrument transformer |
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| CN204088218U true CN204088218U (en) | 2015-01-07 |
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| CN201420464070.8U Active CN204088218U (en) | 2014-08-15 | 2014-08-15 | A kind of column type circuit breaker of integrated current instrument transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810492A (en) * | 2016-04-08 | 2016-07-27 | 平高集团有限公司 | Circuit breaker |
-
2014
- 2014-08-15 CN CN201420464070.8U patent/CN204088218U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810492A (en) * | 2016-04-08 | 2016-07-27 | 平高集团有限公司 | Circuit breaker |
| WO2017173835A1 (en) * | 2016-04-08 | 2017-10-12 | 国家电网公司 | Circuit breaker |
| CN105810492B (en) * | 2016-04-08 | 2019-01-01 | 国家电网公司 | A kind of breaker |
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