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Spring manipulater used for breaker and breaker

A technology of breakers and manipulators, which is applied in the direction of convenient operation, contact operating mechanism, high-voltage air circuit breaker, etc. It can solve the problems such as the decrease of contact moving speed, the increase of driving force transmission loss, and the difficulty in increasing the rotation speed of the main rod. Achieve the effect of reducing the number of connections and improving reliability

Active Publication Date: 2013-06-26
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the position of the center of gravity of the main rod is located at a predetermined distance from the center of rotation, and the moment of inertia of the main rod around the center of rotation is larger than the moment of inertia around the center of gravity (parallel axis theorem), and the rotational speed of the main rod during the interruption operation may be difficult to increase
[0013] In addition, the driving force acting on the main rod to turn of...

Method used

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  • Spring manipulater used for breaker and breaker
  • Spring manipulater used for breaker and breaker
  • Spring manipulater used for breaker and breaker

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Embodiment 1

[0045] First, use Image 6 An air circuit breaker which is an embodiment of the breaker of the present invention will be described. As shown in the figure, the cylindrical grounded container 103 of the air circuit breaker 100 is installed on a stand 105 . Insulating gas, such as SF 6 For gas (sulfur hexafluoride gas), sleeves 101 and 102 protrude obliquely upward from an axially intermediate portion of a cylindrical grounded container 103 . Conductors that connect electric wires in substations and switching stations to form circuits are housed in sleeves 101 and 102 . In addition, an operation box 104 for accommodating an operation portion of the air circuit breaker 100 is attached to a side portion of the stand 105 .

[0046] In the air circuit breaker 100 configured in this way, for example, power is supplied to the sleeve 102 on the upstream side from a system not shown when energized. Then, it is guided from the sleeve 102 to the contact in the ground container 103 and...

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Abstract

The present invention provides a spring manipulater used for a breaker and a breaker for realizing high speed of contact movement of the breaker and miniaturization of the manipulater by reducing the number of components. In order to solve the above problem, the spring manipulater is characterized in that: a driving force of a connecting spring (28) used for closing a fixed contact piece (62) and a moving contact piece (63) of a breaking part (405) is transmitted on a cam (3), a main post (5) which transmits the driving force of the cam (3) and has a blade part extending towards four directions and is arranged on a main shaft comprises: a first roller (6) contacted with the cam (3) during a connecting motion of the breaking part (405); a first pin (5b) connected with a connecting rod (68), a second pin (5a) connected with a breaking spring connecting rod (25) which transmits the driving force of a breaking spring (26), and a second roller (7) for transmitting the driving force of the breaking spring (26) to a breaking control mechanism (401), wherein transmission of the driving force is maintained within the approximately same plane.

Description

technical field [0001] The present invention relates to a spring operator for a breaker and a breaker, and more particularly to a spring operator for a breaker and a breaker suitable for use in high-voltage power such as substations and switching stations of electric power systems. Background technique [0002] With the increase in capacity of power transmission systems, the breaking capacity of circuit breakers used in substations and switching stations has increased, and high reliability is required. In order to improve the reliability of the interrupter, it is important to simplify the structure by reducing the number of parts. [0003] Generally, a blower-type air circuit breaker is used for a large-capacity circuit breaker. This blower-type air circuit breaker has a structure that discharges gas to eliminate the arc generated during the circuit breaker, and it is known that not only the structure of the circuit breaker is simple , the enclosed insulating gas such as SF...

Claims

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Application Information

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IPC IPC(8): H01H33/40
CPCH01H3/3015H01H33/40H01H33/42H01H2217/046H01H2239/044
Inventor 桥本裕明大久保健一
Owner HITACHI LTD
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