US1919663A - Safety device for overhead electric lines - Google Patents

Safety device for overhead electric lines Download PDF

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Publication number
US1919663A
US1919663A US660072A US66007233A US1919663A US 1919663 A US1919663 A US 1919663A US 660072 A US660072 A US 660072A US 66007233 A US66007233 A US 66007233A US 1919663 A US1919663 A US 1919663A
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US
United States
Prior art keywords
safety device
line
conductor
electric lines
overhead electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US660072A
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English (en)
Inventor
Mathieu Marie Ernest
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Individual
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Individual
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Publication date
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Publication of US1919663A publication Critical patent/US1919663A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines

Definitions

  • Another object ofun'y invention is to provide a safety device of thatkindthatis fur the-adapted to-be 'used 'forcutting off the c ur'rentin the-line.
  • Stop 13 is "thus brought into contact "with the edges of-slot 14 and bar is -s"11b ]ected' to the action of --counterweight- 11 7-5 which causes 'it to pivot about pointfi so v that it is no longer in contact withfthe connecting bar 5 of the adjacentsection of the line.
  • lc'ctricconn'ection istherefore cut i on between the broken section of the line and #790 '-the othe1-sect ions connected ⁇ to a" source of -'cu'nent.
  • FIG. 2 An example of such an arrangement is shown in Fig. 2. It consists of rods 16 rigidly connecting together the three connecting bars 5, insulators 15 being inserted between said rods so as to electrically insulate said bars from one another.
  • the length of a section of electric line provided with the device according to my invention depends on the length of the displacements that the counterweight is allowed to have, on the diameter and on the nature of the conductors. It may vary between 3 and 5 kilometers.
  • An operating chain 17' is fitted to the middle connecting bar, as shown in Figs. 1 and 2. Said chain is provided with insulators 18. It serves to cut off at will the circuitof the line. y
  • the safety device according to my invention can be adapted to overhead electric lines made according to the methods. Such an embodiment is shown in Figs. 3 and 4.
  • the connecting bars are dis posed as in the preceding example.
  • the ends of the conductors are adapted to slide in their supports.
  • the ends of eachconductor has, attached to it, a counterweight 11 bearing against thesupport and the weight of which is sufiicient for causing, in case of the ,conductor being broken, stop 18 to act on the lower end of the connecting bar. so as to rotate it and cut off the electric connection between the two adjacent sections of the line.
  • a safety device for overhead electric lines which comprises in combination, a conductor forming a section of the line, pivoting contact means for electrically connecting said section of theline to another conductor, a counterweight mechanically connected to said section of the line, and means, operatively connected with said counterweight, for causing said contact means to pivot out of contact with the second mentioned conductor when the counterweight has moved a distance greater than a predetermined value.
  • a safety device for overhead electric lines which comprises in combination, a conductor forming a section of the line, a pivotordinary ing bar for electrically connecting said section of the line to another conductor, a pulley, a chain passing round said pulley and fixed at one end to the first mentioned conductor, the lower end of said pivoting bar being provided with an opening through which said end of the chain passes freely, a stop on said chain adapted to butt against the edges of said opening, and a counterweight fixed to the other end of said chain.
  • a safety device further comprising at least another conductor corresponding to another phase of the current, pivoting contact means for the last mentioned conductor, rigid means for mechanically connecting the last mentioned pivoting contact means with the first mentioned pivoting contact means, and means for electrically insulating the last mentioned pivoting contact means from the first mentioned contact means.
  • a safety devlce according to claim 2 further comprising at least another conductor corresponding to another phase of the current, a pivoting bar for the last mentioned conductor, rigid means for mechanically connecting together the two bars, and means for electrically insulating from each other said two bars.
  • a safety device according to claim 1 further comprising means for manually operating said pivoting contact means.
  • a safety device further comprising a chain operatively connected with saidbar, and at least an electrical insulator provided in said chain, where- 'by said pivoting bar can be manually operated.
  • a safety device for overhead electric lines which comprises incombination, a support, a conductor forming a section of the line, the end of said conductor being slidably mounted in said support, a pivoting bar for electrically connecting said section of the line to another conductor, the lower end of said pivoting bar being provided with an opening through which said end of the conductor passes freely, a stop on said conductor adapted to butt against the edges of said opening, and a counterweight fixed to the end of the conductor and butting against said support.
  • a safety device further comprising a chain fixed to the lower end of said pivoting bar, and at least one electrical insulator provided in said chain, where by said pivoting bar can be manually operat- MAR-IE ERNEST MATHIEU.

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US660072A 1932-03-09 1933-03-08 Safety device for overhead electric lines Expired - Lifetime US1919663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR396324X 1932-03-09

Publications (1)

Publication Number Publication Date
US1919663A true US1919663A (en) 1933-07-25

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ID=8896453

Family Applications (1)

Application Number Title Priority Date Filing Date
US660072A Expired - Lifetime US1919663A (en) 1932-03-09 1933-03-08 Safety device for overhead electric lines

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US (1) US1919663A (enrdf_load_stackoverflow)
BE (1) BE394822A (enrdf_load_stackoverflow)
GB (1) GB396324A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549497A (en) * 1948-07-16 1951-04-17 George A Matthews Protective device for electrical power transmission systems
CN110395611A (zh) * 2018-11-08 2019-11-01 辽宁工业大学 一种高压输电线断线快速收缆装置
CN113161959A (zh) * 2021-05-08 2021-07-23 中国能源建设集团湖南省电力设计院有限公司 一种减小耐张杆塔不平衡张力的连接结构及方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549497A (en) * 1948-07-16 1951-04-17 George A Matthews Protective device for electrical power transmission systems
CN110395611A (zh) * 2018-11-08 2019-11-01 辽宁工业大学 一种高压输电线断线快速收缆装置
CN113161959A (zh) * 2021-05-08 2021-07-23 中国能源建设集团湖南省电力设计院有限公司 一种减小耐张杆塔不平衡张力的连接结构及方法

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Publication number Publication date
BE394822A (enrdf_load_stackoverflow)
GB396324A (en) 1933-08-03

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