EP2922078A2 - Adapting device for an arc extinguishing tool that allows disconnecting circuits that do not have the opening support - Google Patents

Adapting device for an arc extinguishing tool that allows disconnecting circuits that do not have the opening support Download PDF

Info

Publication number
EP2922078A2
EP2922078A2 EP14822316.7A EP14822316A EP2922078A2 EP 2922078 A2 EP2922078 A2 EP 2922078A2 EP 14822316 A EP14822316 A EP 14822316A EP 2922078 A2 EP2922078 A2 EP 2922078A2
Authority
EP
European Patent Office
Prior art keywords
loadbuster
movable arm
contact
arc extinguisher
guide rod
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.)
Withdrawn
Application number
EP14822316.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Abel Eduardo RODRIGUEZ SOTO
Diego Andres ROMERO COTRINO
Leonardo VASQUEZ MIRANDA
Fernando Alberto ALVAREZ ROMERO
Helmer ROJAS LOPEZ
Juan Carlos HERRERA GOMEZ
Edgar Ner LEON RUIZ
Luis Rodolfo COY AVILA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Codensa Sa Esp
Original Assignee
Codensa Sa Esp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Codensa Sa Esp filed Critical Codensa Sa Esp
Publication of EP2922078A2 publication Critical patent/EP2922078A2/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
    • H01H31/127—Drop-out fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/006—Air-break switches for high tension without arc-extinguishing or arc-preventing means adapted to be operated by a hot stick; Hot sticks therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/056—Tools for actuating a switch

Definitions

  • the invention is related to the operation in electric power distribution lines, particularly with mechanical devices that enable safety during maintenance or repair work in these distribution lines.
  • circuit breakers are required to protect the equipment connected to the network from overload. During the maintenance or repair processes, these circuit breakers should be open to interrupt the flow of electricity and allow safe intervention of the equipment. This opening requires, according to the regulations, the use of an arc extinguishing tool (load break switch) to certify the safety of both the operator and the network equipment:
  • Loadbuster ® which extinguishes the arc for a great number of devices such as load breaks, short-circuits, potency fuse or limiting fuses.
  • the present invention provides a novel adapting device that enables safe and efficient use of the Loadbuster even in circuit breakers that do not have retention hooks.
  • the invention provides a mechanical device acting as an adapter for the Loadbuster and enables the opening of circuit breakers that are do not have opening support, which engages the Loadbuster to the circuit breaker disconnection mechanism.
  • Said device of the invention enables the conduction of electricity discharged through the Loadbuster, leading to the obtainment of efficient arc extinction and therefore, ensure safe operation.
  • the Loadbuster when the device is installed in the Loadbuster, contact with the power line occurs by means of a conducting bar that enables the passage of electricity, and once positioned, the Loadbuster normally attaches to the rim of the cane and may tug the whole system to disconnect the electrical circuit.
  • Said equipment has circuit breakers that protect from overload and allow said power cut for the operation of the network, with the cane-like circuit breakers being the most commonly used circuit breakers.
  • This Loadbuster engages a pole and it is manipulated for opening the circuit breaker; however, said circuit breaker must meet a number of technical features, mainly to have a fixing hook that allows hooking the Loadbuster.
  • the present invention provides a novel solution to this problem by providing an adapting device that acts as a bridge between the circuit breaker and the Loadbuster arc extinguisher, and enables the safe operation in distribution networks regardless if the circuit breakers do not have hooks for the Loadbuster coupling.
  • Figure 1 shows the Loadbuster ® commercial arc extinguisher that is commonly used within the circuit breaker opening, which has on its top a hinged latch which engages with the retaining hooks of the circuit breaker.
  • Figure 2 shows a circuit breaker suitable for coupling with the Loadbuster arc extinguisher.
  • Figure 2 illustrates that the cane-like circuit breaker suitable for coupling with the Loadbuster has two hooks at the top of the fuse tube, which, as seen in Figure 3 , allow coupling with the Loadbuster and, as a result of the force made on the pole, secure opening of the circuit breaker is achieved.
  • Figure 5 shows an adapting device of the invention, which is designed to couple in a firm and secure manner the Loadbuster arc extinguisher and to enable engagement and opening of the cane.
  • Said adapting device of the invention is formed by fastening means which allow the coupling to the Loadbuster, a movable arm which enables the mechanical displacement of the adapter and two rods attached to said arm, the first being a contact rod (10) and the second a guide rod (11).
  • the retention means comprise a press (1) inserted into a clamp (2) which has a threading system (3) that allows adjustment.
  • a strip (8) is fixed by means of a fastening screw (9), said strip allows the electrical contact between the adapting device and the "Loadbuster” arc extinguisher equipment.
  • the movable arm (7) is L-shaped with a degree of tilt between 0° and 120°, which arm is attached to the press (1) by means of a pin (6) and is adjusted by means of two retaining rings (5).
  • Said movable arm (7) has two holes in which the guide rod (11) is first inserted and the contact rod (10) is then inserted, which rods are fastened to the movable arm (7) by means of knobs (12) as shown in Figure 7 .
  • the guide rod (11) allows securing the location of the system to the electric point, so as to accurately perform the operation with the pole of Loadbuster coupled to the device of the invention.
  • the contact rod (10) is located in the power line, allowing the passage of current and thus ensuring the proper functioning of the Loadbuster arc extinguisher.
  • the contact rod (10) has a rounded end, more particularly a semi-sphere has coupled at its outer end that allows reaching the end point of displacement of the contact rod when opening the circuit breaker. Also, this end facilitates the adjustment of the contact rod to the guide rod.
  • the contact bar (10) is made of an electricity conductive material, for example steel.
  • the mobile arm (7), the press (1) and the clamp (2) are made of an electricity conductive material, preferably the mobile arm (7) is made of steel and the press (1) and clamp (2) are made of aluminum.
  • Figure 8 shows the coupling of the adapting device of the invention to the arc extinguisher Loadbuster. As shown in said figure, the press and the clamp hold the articulated Loadbuster latch, and this engagement is secured with the threaded system (3).
  • Figure 9 shows the adapting device of the invention already coupled to the Loadbuster on a pole, and the use of such coupled device for opening the cane of a circuit breaker that has not gripping hooks.
  • the adapting device of the invention enables manipulation for opening the cane in a safe manner, in a similar way as would occur if these circuit breakers would have gripping hooks, also ensuring proper operation of the Loadbuster arc extinguisher, since once the coupling between the adapting device of the invention and the Loadbuster is positioned, the latter is normally attached to the rim of the cane and it is possible to pull the whole system to disconnect the electric circuit.
EP14822316.7A 2013-07-10 2014-07-09 Adapting device for an arc extinguishing tool that allows disconnecting circuits that do not have the opening support Withdrawn EP2922078A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO13164012U CO6840194U1 (es) 2013-07-10 2013-07-10 Dispositivo adaptador para una herramienta extintora de arco (loadbuster) que permite desconectar cortacircuitos que no cuentan con el soporte de apertura
PCT/CO2014/000007 WO2015003667A2 (es) 2013-07-10 2014-07-09 Dispositivo adaptador para una herramienta extintora de arco que permite desconectar circuitos que no cuentan con el soporte de apertura

Publications (1)

Publication Number Publication Date
EP2922078A2 true EP2922078A2 (en) 2015-09-23

Family

ID=50072792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14822316.7A Withdrawn EP2922078A2 (en) 2013-07-10 2014-07-09 Adapting device for an arc extinguishing tool that allows disconnecting circuits that do not have the opening support

Country Status (4)

Country Link
EP (1) EP2922078A2 (es)
BR (1) BR212015018712U2 (es)
CO (1) CO6840194U1 (es)
WO (1) WO2015003667A2 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023283165A1 (en) * 2021-07-07 2023-01-12 Utility Solutions, Inc. Load break tool having rotational flexibility

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114950776B (zh) * 2017-11-30 2023-12-29 艾仕得涂料系统有限责任公司 利用高转移效率施涂器施加的涂料组合物及其方法和系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816985A (en) * 1953-06-19 1957-12-17 S & C Electric Co Circuit interrupting means
US5650602A (en) * 1995-06-07 1997-07-22 Utility Solutions, Inc. Circuit interrupting apparatus and method for high current power lines
US6474197B1 (en) * 2001-08-31 2002-11-05 Hastings Fiber Glass Products, Inc. Cutout fuse tube installation tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2015003667A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023283165A1 (en) * 2021-07-07 2023-01-12 Utility Solutions, Inc. Load break tool having rotational flexibility

Also Published As

Publication number Publication date
CO6840194U1 (es) 2014-01-20
WO2015003667A2 (es) 2015-01-15
WO2015003667A3 (es) 2015-06-25
BR212015018712U2 (pt) 2015-11-24

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