CN103854885A - Insulating draw rod used for built-in resistor type voltage sensor - Google Patents
Insulating draw rod used for built-in resistor type voltage sensor Download PDFInfo
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- CN103854885A CN103854885A CN201410089183.9A CN201410089183A CN103854885A CN 103854885 A CN103854885 A CN 103854885A CN 201410089183 A CN201410089183 A CN 201410089183A CN 103854885 A CN103854885 A CN 103854885A
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- tension pole
- insulated tension
- voltage
- resistor
- draw rod
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Abstract
The invention provides an insulating draw rod used for a built-in resistor type voltage sensor. The insulating draw rod comprises an insulating draw rod body, and a high-voltage terminal insert and a ground terminal insert are arranged at the two ends of the insulating draw rod body respectively. A high-voltage resistor is packaged in the insulating draw rod body. One end of the high-voltage resistor is fixed to the high-voltage terminal insert of the insulating draw rod body, the other end of the high-voltage resistor is connected with one end of a low-voltage resistor installed outside the insulating draw rod body through a low-voltage wire led out of the ground terminal of the insulating draw rod body, the other end of the low-voltage resistor is grounded, and a transient voltage suppressor is connected to the low-voltage resistor in a parallel mode. The insulating draw rod further has functions of a resistor-type voltage sensor on the basis of a traditional insulating operation draw rod, is connected with elements like the low-voltage resistor outside the draw rod according to the resistor bleeder principle and provides detectable low-voltage signals high in linearity and precision for intelligent control modules so as to ensure that a plurality of intelligent protection functions are achieved by high-voltage switch gears.
Description
Technical field
The present invention relates to a kind of servicing unit that is applicable to outdoor Intelligent high voltage switch device, especially relate to a kind of insulated tension pole for in-built electrical resistive voltage sensor.
Background technology
Insulated tension pole is a kind of insulating part common in high voltage switchgear, mainly as insulating supporting, insulation operation driving member etc., and its technology maturation, simple in structure, be widely used.Voltage sensor, under the demand of intelligent grid, at present, is applied to high voltage switchgear with various version more and more widely, to realize more intelligent protection functions, as o-volt protection, overvoltage protection, the standby throwing of contact, small current grounding protection etc.
At present, using more voltage sensor on high voltage switchgear, is mainly the inserted voltage sensor of insulator style, insulating cylinder or three-phase five-pole voltage transformer etc.Its general connection complexity, cost is high, inconvenience is installed, or the linearity of its output voltage is not good.
Summary of the invention
The object of the invention is for solving existing insulated tension pole wiring complexity; the problems such as the linear difference of output voltage; a kind of insulated tension pole for in-built electrical resistive voltage sensor is provided; the present invention can be applied to outdoor Intelligent high voltage switch device; simplify connection; reduce cost, and be conducive to realize multiple intelligent protection function.
The present invention is the deficiency solving the problems of the technologies described above, and the technical scheme adopting is:
A kind of insulated tension pole for in-built electrical resistive voltage sensor, comprise insulated tension pole body, insulated tension pole body two ends are respectively arranged with high-pressure side inserts and earth terminal inserts, in described insulated tension pole body, be packaged with high voltage resistor, one end of high voltage resistor is fixed on the high-pressure side inserts of insulated tension pole body, the other end is connected with the low resistance one end that is arranged on insulated tension pole body exterior by the primary cable of drawing from the earth terminal of insulated tension pole body, low resistance other end ground connection, is also parallel with a Transient Voltage Suppressor on low resistance.
On the earth terminal of described insulated tension pole body, be also provided with ground connection aluminium cover, ground connection aluminium cover parcel primary cable is also connected with ground connection nest, and ground connection aluminium cover is by earth lead ground connection.
Described high voltage resistor is fixed in insulated tension pole body by mixing casting glue.
Described insulated tension pole body is the High-Voltage Insulation operation pull bar of high tensile load, antitorque moment of torsion.
Described mixing casting glue is the flexible resin glue with low mixing viscosity, high dielectric strength.
The invention has the beneficial effects as follows: voltage sensor formula insulated tension pole provided by the invention is on the basis of tradition insulation operation pull bar, has gathered resistance-type voltage sensor function.It is connected with elements such as pull bar outer low pressure resistance according to electric resistance partial pressure principle, provides detectable linearity and the higher low voltage signal of precision to intelligent control module, is beneficial to high voltage switchgear and realizes multiple intelligent protection function.It is simple and compact for structure, and cost is low, and it is convenient to install with line.
Brief description of the drawings
Fig. 1 structural representation of the present invention
Fig. 2 is circuit reduction schematic diagram of the present invention.
Graphical indicia: 10, insulated tension pole body; 101, high-pressure side inserts; 102, earth terminal inserts; 11, high voltage resistor; 12, mix casting glue; 13, ground connection aluminium cover; 14, primary cable; 15, earth lead; 16, Transient Voltage Suppressor; 17, low resistance.
Embodiment
Shown in figure, embodiment is as follows:
A kind of insulated tension pole for in-built electrical resistive voltage sensor, comprise insulated tension pole body 10, insulated tension pole body 10 two ends are respectively arranged with high-pressure side inserts 101 and earth terminal inserts 102, in described insulated tension pole body 10, be packaged with high voltage resistor 11, one end of high voltage resistor 11 is fixed on the high-pressure side inserts 101 of insulated tension pole body 10, the other end is connected with low resistance 17 one end that are arranged on insulated tension pole body 10 outsides by the primary cable 14 of drawing from the earth terminal of insulated tension pole body 10, low resistance 17 other end ground connection, on low resistance 17, be also parallel with a Transient Voltage Suppressor 16.
On the earth terminal of described insulated tension pole body 10, be also provided with ground connection aluminium cover 13, ground connection aluminium cover 13 parcel primary cables 14 are also connected with ground connection nest 102, and ground connection aluminium cover 13 is by earth lead 15 ground connection.
Described high voltage resistor 11 is fixed in insulated tension pole body 10 by mixing casting glue 12.
The High-Voltage Insulation operation pull bar that described insulated tension pole body 10 is high tensile load, antitorque moment of torsion.
Described mixing casting glue 12 is for having the flexible resin glue of low mixing viscosity, high dielectric strength.
Insulated tension pole body 10 has high-pressure side inserts 101 and earth terminal inserts 102.In the present embodiment, insulated tension pole body 10, for having the High-Voltage Insulation operation pull bar compared with high tensile load, antitorque moment of torsion, can be installed on high voltage switchgear inside easily, makes the compact conformation of switchgear.
Mixing casting glue 12 in insulated tension pole body, strengthens the performances such as resistance insulation, protection against the tide by high voltage resistor sealing.Mixing casting glue 12 can be to have low mixing viscosity, high dielectric strength, the wide flexible resin glue of operating temperature range.As a nonrestrictive example, the mixing casting glue 12 adopting in the present embodiment is polybutadiene glue.
The mixed casting glue 12 of high voltage resistor 11 is packaged in insulated tension pole body 10, and its one end is fixedly connected with (being high-pressure side) with the high-pressure side inserts 101 of insulated tension pole body 10, and its other end is connected (being low-pressure end) with primary cable 14.
Transient Voltage Suppressor (TVS) 16 one end are connected with primary cable 14, other end ground connection, and Transient Voltage Suppressor (TVS) 16 forms in parallel with low resistance 17.
Ground connection aluminium cover 13 is fixed on the earth terminal of insulated tension pole body 10, and is connected with the earth terminal inserts 102 of insulated tension pole body 10.The outgoing line part of ground connection aluminium cover 13 parcel primary cables 14 on insulated tension pole body 10, and be connected with earth connection 15, equipment and the person are played to protective action.
Ground connection after earth connection 15 is connected with the earth terminal of ground connection aluminium cover 13, Transient Voltage Suppressor (TVS) 16 simultaneously, plays protective action to equipment and the person.
Wherein, ground connection aluminium cover 13,16 pairs of equipment of Transient Voltage Suppressor (TVS) and the person play protective action.
According to above connection, high voltage resistor 11 forms series circuit, another termination high pressure of high voltage resistor 11, the other end ground connection of low resistance 17 with low resistance 17; Transient Voltage Suppressor (TVS) 16 is in parallel with low resistance 17.According to electric resistance partial pressure principle, the resistance ratio according to high voltage resistor 11 with low resistance 17, the two ends output of low resistance 17 can be used for the low voltage signal U. that intelligent control module detects
Wherein, can, according to the parameter request of the applied high pressure of voltage sensor formula insulated tension pole and low pressure, select high voltage resistor 11 and low resistance 17, make its output meet the low voltage signal U. of intelligent control module demand
To sum up, the voltage sensor formula insulated tension pole of the present embodiment, is on the basis of tradition insulation operation pull bar, has increased the function of resistance-type voltage sensor, high voltage is converted to the detectable low voltage signal of intelligent control module, structure and line that simultaneously can simplified intelligent high voltage switchgear.It is simple in structure, and cost is lower, and it is convenient to install with line, and is conducive to high voltage switchgear and realizes various intelligent protection functions.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment; therefore, protection scope of the present invention should be as the criterion with the scope that the claims in the present invention were defined.
Claims (5)
1. the insulated tension pole for in-built electrical resistive voltage sensor, comprise insulated tension pole body (10), insulated tension pole body (10) two ends are respectively arranged with high-pressure side inserts (101) and earth terminal inserts (102), it is characterized in that: in described insulated tension pole body (10), be packaged with high voltage resistor (11), one end of high voltage resistor (11) is fixed on the high-pressure side inserts (101) of insulated tension pole body (10), the other end is connected by primary cable (14) low resistance (17) one end outside with being arranged on insulated tension pole body (10) of drawing from the earth terminal of insulated tension pole body (10), low resistance (17) other end ground connection, on low resistance (17), be also parallel with a Transient Voltage Suppressor (16).
2. a kind of insulated tension pole for in-built electrical resistive voltage sensor according to claim 1, it is characterized in that: on the earth terminal of described insulated tension pole body (10), be also provided with ground connection aluminium cover (13), ground connection aluminium cover (13) parcel primary cable (14) is also connected with ground connection nest (102), and ground connection aluminium cover (13) is by earth lead (15) ground connection.
3. a kind of insulated tension pole for in-built electrical resistive voltage sensor according to claim 1, is characterized in that: described high voltage resistor (11) is fixed in insulated tension pole body (10) by mixing casting glue (12).
4. a kind of insulated tension pole for in-built electrical resistive voltage sensor according to claim 1, is characterized in that: the High-Voltage Insulation operation pull bar that described insulated tension pole body (10) is high tensile load, antitorque moment of torsion.
5. a kind of insulated tension pole for in-built electrical resistive voltage sensor according to claim 3, is characterized in that: described mixing casting glue (12) is for having the flexible resin glue of low mixing viscosity, high dielectric strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089183.9A CN103854885A (en) | 2014-03-12 | 2014-03-12 | Insulating draw rod used for built-in resistor type voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089183.9A CN103854885A (en) | 2014-03-12 | 2014-03-12 | Insulating draw rod used for built-in resistor type voltage sensor |
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| Publication Number | Publication Date |
|---|---|
| CN103854885A true CN103854885A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410089183.9A Pending CN103854885A (en) | 2014-03-12 | 2014-03-12 | Insulating draw rod used for built-in resistor type voltage sensor |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003036A (en) * | 2020-07-01 | 2020-11-27 | 中国电力科学研究院有限公司 | Resistance type arc extinction grounding device and grounding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845318A (en) * | 1983-05-11 | 1989-07-04 | Raychem Limited | Composite electrical insulator and method of forming same |
| CN201163287Y (en) * | 2007-08-01 | 2008-12-10 | 大连新大路电气传动技术有限责任公司 | High voltage type voltage transducer with supporting insulator function |
| CN201926697U (en) * | 2011-01-13 | 2011-08-10 | 固馨电气(上海)有限公司 | Resistor type voltage sensor |
| CN203232136U (en) * | 2013-04-16 | 2013-10-09 | 苏州电器科学研究院股份有限公司 | Arc voltage measuring device of high-voltage circuit breaker |
| CN203706917U (en) * | 2014-03-12 | 2014-07-09 | 库柏爱迪生(平顶山)电子科技有限公司 | Insulating pull rod for built-inresistor-typevoltage sensor |
-
2014
- 2014-03-12 CN CN201410089183.9A patent/CN103854885A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845318A (en) * | 1983-05-11 | 1989-07-04 | Raychem Limited | Composite electrical insulator and method of forming same |
| CN201163287Y (en) * | 2007-08-01 | 2008-12-10 | 大连新大路电气传动技术有限责任公司 | High voltage type voltage transducer with supporting insulator function |
| CN201926697U (en) * | 2011-01-13 | 2011-08-10 | 固馨电气(上海)有限公司 | Resistor type voltage sensor |
| CN203232136U (en) * | 2013-04-16 | 2013-10-09 | 苏州电器科学研究院股份有限公司 | Arc voltage measuring device of high-voltage circuit breaker |
| CN203706917U (en) * | 2014-03-12 | 2014-07-09 | 库柏爱迪生(平顶山)电子科技有限公司 | Insulating pull rod for built-inresistor-typevoltage sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003036A (en) * | 2020-07-01 | 2020-11-27 | 中国电力科学研究院有限公司 | Resistance type arc extinction grounding device and grounding method |
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Application publication date: 20140611 |