CN206340479U - A kind of pole of integral moulding by casting - Google Patents

A kind of pole of integral moulding by casting Download PDF

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Publication number
CN206340479U
CN206340479U CN201621020004.7U CN201621020004U CN206340479U CN 206340479 U CN206340479 U CN 206340479U CN 201621020004 U CN201621020004 U CN 201621020004U CN 206340479 U CN206340479 U CN 206340479U
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China
Prior art keywords
pole
leading
out terminal
pole according
casting
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陈贤会
晏文曲
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Huayi Electric Apparatus Group
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Huayi Electric Apparatus Group
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Abstract

A kind of pole of integral moulding by casting, characterized in that, the shell of pole and its internal vacuum interrupter, resistance divider, operating mechanism, current transformer and the end of incoming cables for the composition loop that is connected with overhead transmission line and the integral moulding by casting of leading-out terminal.

Description

A kind of pole of integral moulding by casting
Technical field
The utility model is related to high-tension switch gear technical field, and in particular to a kind of sealing pole of integral moulding by casting Post.
Background technology
Pole is the critical piece of high-pressure vacuum breaker.Pole is related to breaker by vacuum interrupter Conductive pieces are embedded into solid insulating material simultaneously forms pole, whole circuit breaker polar is turned into an entirety.
At present, the current transformer that breaker measurement current value is used is installed to as an independent modular unit In product, it produces, debugged, installation is required to manpower participation, both took up space, production cost is accounted for again, the uniformity of product is not high, It is affected by human factors higher.
Traditional pole and current transformer and partial installation, current transformer are directly anchored to go out under pole On line seat, because current transformer is directly exposed on the outside of pole and its connecting lead wire part dew between pole In the external outdoor environment of pole, cause, in high-voltage case, easily occur electric discharge phenomena, destruction is produced to insulation. In addition, pole also haves the shortcomings that disassembly efficiency is low, it is poor to install uniformity with current transformer partial installation.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome pole in the prior art and current transformer Easy generation electric discharge phenomena and pole caused by partial installation and current transformer disassembly efficiency are low, it is poor to install uniformity The problem of, so that a kind of pole of integral moulding by casting is provided,
The shell of pole vacuum interrupter internal with it, resistance divider, operating mechanism, current transformer with And end of incoming cables and the integral moulding by casting of leading-out terminal in loop are constituted for being connected with overhead transmission line.
The shell of the pole is the pouring piece formed by pouring technology.
The current transformer is electronic current mutual inductor, is arranged on the leading-out terminal.
The vacuum interrupter lower end is provided with fixed cover,
Electrically insulating silicone rubber set is wrapped up in the vacuum interrupter side and upper end respectively.
The pouring technology uses APG techniques, pours material for insulating materials.
The end of incoming cables and leading-out terminal on the pole are connected with a resistance divider respectively;
The resistance divider includes terminals, signal voltage end, earth terminal, and high-tension resistive R1 and low tension Hinder R2;
The terminals are used for power supply, and it includes input V1 and output end V2;
The signal voltage end is connected with the electronic detection unit being arranged on the end of incoming cables or leading-out terminal;
The earth terminal is connected with metallic ground shell.
The high-tension resistive R1 is arranged on the pole inner chamber, is fixed by pouring technology;
The low resistance R2 is arranged on the outside of the pole, is connected by connecting line with the high-tension resistive R1.
Voltage transformer is provided with the downside of the pole;
The voltage transformer is provided with the insulated wire being connected with the pole.
The insulated wire includes cored wire, is arranged on the chock plug at the cored wire two ends and is wrapped in the cored wire and head surface Insulating barrier.
The chock plug is truncated conical shape, and the interface end of the pole is fixed on by T-nut;
The narrow end of the chock plug is provided with the circular hole for being fixed with power spring, described power spring one end and the end of the cored wire End is connected, and the other end is connected to form galvanic circle with the metallic conduction part in the interface end;
The metallic conduction part passes through the end of incoming cables in the pole and leading-out terminal and the overhead transmission line phase Even.
The insulating materials is epoxy resin.
The APG techniques refer to epoxide resin automatic pressure gel forming technique (The Automatic Pressure Gelation), it is mainly used in production mesohigh epoxy insulation product.Its feature is can be by the production week of epoxy insulation product Phase, more than ten minutes are shortened within more than ten hour from needed for traditional vacuum cast, and preferably control exothermic effect, be conducive to mending Repay and shunk because of caused by curing reaction, and with the outstanding advantages such as fabulous dimensional stability and very high mechanical strength.Especially It is to be applied to solid-sealed polar pole used for vacuum circuit breaker, complexity, thin-walled, the product more advantage of multi-faceted core pulling.It is current domestic and international High-voltage switch gear forward direction is non-maintaining, Composite, miniaturization, the high life, high-performance development, using APG technologies produce High-Voltage Insulation system Product more show prominent technical advantage and vast potential for future development.
Technical solutions of the utility model, have the following advantages that:
1. the pole that the utility model is provided, using by vacuum interrupter, resistance divider, operating mechanism and electricity Current transformer is arranged in mould, is fixed by the fixation casting of pouring technology formation insulation, is simplified assembly process, accelerates Production efficiency, avoids original insulation mode and has the shortcomings that gap, improve sealing simultaneously because fixed casting is insulator The resistance to voltage levels of insulation of pole.
2. the pole that the utility model is provided, transformer is fixed on leading-out terminal, with the overall sealing of pole, transformer It is built-in not to be affected by, it is to avoid in the presence of high voltage, occur the phenomenon discharged over the ground, cause the damage of equipment Bad failure.
3. the pole that the utility model is provided, using electronic current mutual inductor, solves conventional current transformer The scope of application is small, it is impossible to the problem of suitable for different current classes.
4. the vacuum interrupter that the utility model is provided is provided with fixed cover, it is ensured that the vacuum interrupter when pouring pole Position it is inactive, it is to avoid there is defect ware.
5. the vacuum interrupter outer layer covers that the utility model is provided have electrically insulating silicone rubber set, vacuum interrupter is improved Insulating properties.
6. the pole that the utility model is provided is using the fixed casting of APG pouring technologies casting, with it is with short production cycle, The advantage of high mechanical strength and long service life.
7. the end of incoming cables for the pole that the utility model is provided and leading-out terminal are equipped with a resistance divider, can be with Measure the voltage of inlet wire conducting end and outlet conducting end simultaneously, meet the voltage detecting requirement of many power generating facilities and power grids, avoid it is non- The distributed power source of intentional islanding not yet departs from circuit with regard to reclosing, makes whole piece line outage, it is ensured that the reliability of power supply Property, while when load variations or failure, the measurement power supply of breaker can be detected, early warning is provided for staff, Ensure the safety of circuit.
8. the resistance divider that the utility model is provided, in the absence of traditional core type transformer saturation problem unshakable in one's determination, tool There are very big dynamic measurement and linear measurement interval, while ferromagnetic resonance phenomenon and load sharing are avoided, it is highly reliable.
9. the high-tension resistive for the resistance divider that the utility model is provided is arranged on the pole inner chamber, low tension Resistance is arranged on the outside of the pole, has the advantages that simple in construction and production efficiency is high.
10. the utility model provide pole, be connected using voltage transformer with pole, switch pole again with The Novel connection type that overhead transmission line is connected, this Novel connection type, when switch pole is assembled installation and Whether the contact in loop is good also have been detected completion, and scene need not carry out the installation of voltage transformer again, improve installation effect Rate, reduce operation difficulty and operational risk;Naked dew in the prior art is avoided simultaneously connects caused poor insulativity, by outside The problem of ambient influnence is big.
11. the pole that the utility model is provided, using the cored wire for being enclosed with insulating barrier, with simple in construction, production The advantage of low cost and good insulation preformance.
12. insulated wire chock plug and interface end that the utility model is provided are the conical round table shape being mutually matched, in T-shaped spiral shell Under female promotion extruding, chock plug is mutually extruded with the interior edge of interface end, with being completely embedded, reliable advantage, it is ensured that electrically absolutely Edge isolation effect, improve electric sealing effectiveness.
13. the insulated wire that the utility model is provided passes through power spring and the metallic conduction part phase that is arranged in switch pole Even, have the advantages that simple in construction, stable connection reliability and ducting capacity are good.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The pole sectional view that Fig. 1 provides for the utility model;
Fig. 2 is the pole front view shown in Fig. 1;
Fig. 3 is the pole B-B sectional views shown in Fig. 2;
Fig. 4 is the pole C-C sectional views shown in Fig. 2;
The resistance divider connection diagram that Fig. 5 provides for the utility model;
Voltage transformer and pole connection diagram that Fig. 6 provides for the utility model;
The sectional view for the insulated wire that Fig. 7 provides for the utility model;
Fig. 8 be Fig. 6 shown in connection diagram in part A partial enlarged drawing;
Description of reference numerals:
1- vacuum interrupters;2- resistance dividers;3- operating mechanisms;4- current transformers;5- ends of incoming cables;6- outlets End;7- pouring pieces;8- fixed covers;9- signal voltages end;10- earth terminals;11- voltage transformers;12- insulated wires;13- cored wires; 14- chock plugs;15- insulating barriers;16-T type nuts;17- interface ends;18- power springs;19- metallic conduction parts;
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.
As long as in addition, technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can just be combined with each other.
Embodiment 1
A kind of pole of integral moulding by casting is described,
As shown in figure 1, the shell of the pole vacuum interrupter 1 internal with it, resistance divider 2, operating mechanism 3rd, current transformer 4 and the end of incoming cables 5 for the composition loop that is connected with overhead transmission line and the integral moulding by casting of leading-out terminal 6.
The integral moulding by casting of above-mentioned vacuum interrupter, resistance divider, operating mechanism summation current transformer, simplifies dress With process, production efficiency is accelerated, original insulation mode is avoided simultaneously because fixed casting is insulator there is lacking for gap Point, improves the resistance to voltage levels of insulation of pole.
Specifically, the shell of the pole is the pouring piece 7 formed by pouring technology.
Specifically, the current transformer 4 is electronic current mutual inductor, is arranged on the leading-out terminal 6.
Above-mentioned transformer is fixed on the leading-out terminal of pole, and the overall sealing of pole, not by outside built in transformer The influence of environment, it is to avoid in the presence of high voltage, occurs the phenomenon discharged over the ground, causes the damage of equipment to fail.
Specifically, the lower end of vacuum interrupter 1 is provided with fixed cover 8,
Electrically insulating silicone rubber set is wrapped up in the side of vacuum interrupter 1 and upper end respectively.
Above-mentioned vacuum interrupter is provided with fixed cover, it is ensured that when pouring pole, the position of vacuum interrupter is inactive, Avoid the occurrence of defect ware.And vacuum interrupter outer layer covers have electrically insulating silicone rubber set, the insulating properties of vacuum interrupter is improved Energy.
Specifically, the pouring technology uses APG techniques, pours material for epoxy resin.
Above-mentioned pole with short production cycle, high mechanical strength and is made using the fixed casting of APG pouring technologies casting With the advantage of long lifespan.
Specifically, on the pole the end of incoming cables 5 and leading-out terminal 6 respectively with a phase of resistance divider 2 Even;
The resistance divider 2 includes terminals, signal voltage end 9, earth terminal 10, and high-tension resistive R1 and low pressure Resistance R2;
The terminals are used for power supply, and it includes input V1 and output end V2;
The signal voltage end 9 is connected with the electronic detection unit being arranged on the end of incoming cables 5 or leading-out terminal 6;
The earth terminal 10 is connected with metallic ground shell.
The end of incoming cables of above-mentioned pole and leading-out terminal are equipped with a resistance divider, inlet wire can be measured simultaneously and led Electric end and the voltage of outlet conducting end, meet the voltage detecting requirement of many power generating facilities and power grids, avoid unplanned islet operation Distributed power source not yet departs from circuit with regard to reclosing, makes whole piece line outage, it is ensured that the reliability of power supply, while when load becomes When changing or breaking down, the measurement power supply of breaker can be detected, early warning is provided for staff, it is ensured that the safety of circuit.
Above-mentioned divider uses resistance divider, in the absence of traditional core type transformer saturation problem unshakable in one's determination, with very Big dynamic measurement and linear measurement are interval, while ferromagnetic resonance phenomenon and load sharing are avoided, it is highly reliable.
Specifically, the high-tension resistive R1 is arranged on the pole inner chamber, is fixed by pouring technology;
The low resistance R2 is arranged on the outside of the pole, is connected by connecting line with the high-tension resistive R1.
The high-tension resistive of above-mentioned resistance divider is arranged on the pole inner chamber, and low resistance is arranged on described solid On the outside of sealed pole, have the advantages that simple in construction and production efficiency is high.
Specifically, it is provided with voltage transformer 11 on the downside of the pole;
The voltage transformer 11 is provided with the insulated wire 12 being connected with the pole.
Specifically, the insulated wire 12 includes cored wire 13, is arranged on the chock plug 14 at the two ends of cored wire 13 and is wrapped in institute State the insulating barrier 15 on cored wire 13 and the surface of chock plug 14.
Above-mentioned insulating barrier is enclosed with cored wire, has the advantages that simple in construction, production cost is low and good insulation preformance.
Specifically, the chock plug 14 is truncated conical shape, and the interface end of the pole is fixed on by T-nut 16 17;
Above-mentioned chock plug and interface end are the conical round table shape being mutually matched, T-nut promotion extruding under, chock plug and The interior edge of interface end is mutually extruded, with being completely embedded, reliable advantage, it is ensured that electric insulation isolation effect, improved electrically Sealing effectiveness.
The narrow end of the chock plug 14, which is provided with, is fixed with the circular hole of power spring 18, described one end of power spring 18 with it is described The end of cored wire 13 is connected, and the other end is connected to form galvanic circle with the metallic conduction part 19 in the interface end 17;
The metallic conduction part 19 passes through the end of incoming cables 5 in the pole and leading-out terminal 6 and the trolley line Road is connected.
Above-mentioned insulated wire is connected by power spring with the metallic conduction part being arranged in switch pole, with structure letter Single, stable connection reliability and the good advantage of ducting capacity.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or Among the protection domain that variation is created still in the utility model.

Claims (10)

1. a kind of pole of integral moulding by casting, it is characterised in that the shell of the pole vacuum extinction internal with it Room (1), resistance divider (2), operating mechanism (3), current transformer (4) and for be connected with overhead transmission line constitute loop End of incoming cables (5) and the integral moulding by casting of leading-out terminal (6).
2. pole according to claim 1, it is characterised in that the shell of the pole is to pass through pouring technology The pouring piece (7) of formation.
3. pole according to claim 1, it is characterised in that the current transformer (4) is that electronic current is mutual Sensor, is arranged on the leading-out terminal (6).
4. pole according to claim 1, it is characterised in that
Vacuum interrupter (1) lower end is provided with fixed cover (8),
The vacuum interrupter (1) wraps up electrically insulating silicone rubber set respectively with upper end sideways.
5. pole according to claim 2, it is characterised in that the pouring technology uses APG techniques, pours material For insulating materials.
6. pole according to claim 1, it is characterised in that
The end of incoming cables (5) and leading-out terminal (6) on the pole are connected with a resistance divider (2) respectively;
The resistance divider (2) includes terminals, signal voltage end (9), earth terminal (10), and high-tension resistive R1 and low Piezoresistance R2;
The terminals are used for power supply, and it includes input V1 and output end V2;
The signal voltage end (9) is connected with the electronic detection unit being arranged on the end of incoming cables (5) or leading-out terminal (6);
The earth terminal (10) is connected with metallic ground shell.
7. pole according to claim 6, it is characterised in that
The high-tension resistive R1 is arranged on the pole inner chamber, is fixed by pouring technology;
The low resistance R2 is arranged on the outside of the pole, is connected by connecting line with the high-tension resistive R1.
8. pole according to claim 1, it is characterised in that voltage transformer is provided with the downside of the pole (11);
The voltage transformer (11) is provided with the insulated wire (12) being connected with the pole.
9. pole according to claim 8, it is characterised in that the insulated wire (12) includes cored wire (13), set The cored wire (13) two ends chock plug (14) and be wrapped in the insulating barrier (15) on the cored wire (13) and chock plug (14) surface.
10. pole according to claim 9, it is characterised in that the chock plug (14) is truncated conical shape, by T-shaped Nut (16) is fixed on the interface end (17) of the pole;
The narrow end of the chock plug (14), which is provided with, is fixed with the circular holes of power spring (18), described power spring (18) one end with it is described The end of cored wire (13) is connected, and the other end is connected to form galvanic circle with the metallic conduction part (19) in the interface end (17);
The metallic conduction part (19) is maked somebody a mere figurehead by the end of incoming cables (5) in the pole and leading-out terminal (6) with described Circuit is connected.
CN201621020004.7U 2016-08-31 2016-08-31 A kind of pole of integral moulding by casting Active CN206340479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621020004.7U CN206340479U (en) 2016-08-31 2016-08-31 A kind of pole of integral moulding by casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621020004.7U CN206340479U (en) 2016-08-31 2016-08-31 A kind of pole of integral moulding by casting

Publications (1)

Publication Number Publication Date
CN206340479U true CN206340479U (en) 2017-07-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107768184A (en) * 2017-10-17 2018-03-06 珠海许继电气有限公司 A kind of pole type outlet terminal
CN109166748A (en) * 2018-09-10 2019-01-08 河南长征电气有限公司 A kind of sealing technique of outdoor high-voltage vacuum breaker fixed sealing type pole module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107768184A (en) * 2017-10-17 2018-03-06 珠海许继电气有限公司 A kind of pole type outlet terminal
CN109166748A (en) * 2018-09-10 2019-01-08 河南长征电气有限公司 A kind of sealing technique of outdoor high-voltage vacuum breaker fixed sealing type pole module

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Granted publication date: 20170718