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Breaker actuator inserted in detachable rotating parts with linking logic

A technology for circuit breakers and actuators, which is applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., and can solve the problems of changing the interlock logic of the actuator, expensive, and time-consuming interlock logic.

Inactive Publication Date: 2003-02-26
ALSTHOM SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, actuator users of these circuit breakers with three switching positions often have to change the interlock logic of the actuator
Depending on the complexity of the mechanism, changing an actuator's interlock logic can be time consuming and expensive

Method used

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  • Breaker actuator inserted in detachable rotating parts with linking logic
  • Breaker actuator inserted in detachable rotating parts with linking logic
  • Breaker actuator inserted in detachable rotating parts with linking logic

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] Reference figure 1 , An actuator of a circuit breaker with three switching positions includes a rotating main actuation shaft 1, which is connected to the moving contact of the circuit breaker (not shown in the figure). When the circuit breaker is electrically actuated, a motor 2 drives the main shaft 1 to rotate through a gear train 3. The rotation of the main shaft 1 is transmitted to a second rotating shaft 5 through the gear set 4, and the second rotating shaft 5 faces a front wall 6 of a housing in which the actuator is stored. The second shaft 5 drives a component 7, which is shown here as a wheel, especially for interlocking purposes. The component 7 is detachably mounted on the second shaft 5, which is fixed to a free end of the shaft 5 in the embodiment shown.

[0012] The front wall 6 of the actuator housing has two separate crank inlets 8 and 9. The two crank inlets 8 and 9 face the two corresponding manual switching elements 10, 11 of the circuit breaker. The t...

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PUM

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Abstract

The invention discloses a breaker actuator with three switch positions which is equipped with two crank inlet, capable of switching the breaker manually from the closed position to the open position, or from the open position to the earth position by one crank. Each inlet faced to a different switch unit capable of switching the breaker from one position to another when the crank actuates the switch unit is closed by a rotating protective cover fixed by an detachable rotating interlocking section with tracks which limits a special locking logic for preventing special manual switch order of breaker.

Description

Technical field [0001] The present invention relates to an actuator for a circuit breaker, which can actuate the circuit breaker electrically or manually. The circuit breaker has three switching positions, namely a closed position, an open position and a grounding position. The actuator includes a rotating spindle, which is connected to the moving contact of the circuit breaker. During the switching operation, the spindle can be rotated by a motor or manually by a crank. When the spindle is electrically rotated, the motor needs to be properly energized. When the spindle is manually rotated, the crank is connected to a manual switching element. The switching element is restricted and moves with the spindle. [0002] The present invention particularly relates to an actuator for the following circuit breaker used in a high-voltage (72.5 to 145 kV) metal-enclosed substation. Background technique [0003] Users of such actuators usually have different safety requirements for the manua...

Claims

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Application Information

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IPC IPC(8): H01H9/24H01H31/00
CPCH01H31/003H01H9/24
Inventor 贝尔纳·热洛兹克里斯托夫·雷什让-米歇尔·贝拉尔斯
Owner ALSTHOM SA
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