Circuit-breaker automatic air exhaust alarm device

Abstract

The invention discloses a circuit-breaker automatic air exhaust alarm device, and the device comprises a hydraulic oil warehouse. An air exhaust mechanism, a flame-retardant chamber and an alarm unit are disposed above the hydraulic oil warehouse. The air exhaust mechanism comprises a valve body, and the interior of the valve body is provided with a vertical piston channel and an air exhaust channel. The interior of the piston channel is provided with a piston rod and a piston, and the upper end of the piston rod is provided with a first push force spring. The central part of the air exhaust channel is provided with an air exhaust chamber, and the interior of the air exhaust chamber is provided with a cylindrical rod, wherein the vertical rod can block the air exhaust channel. A lateral connection channel is disposed between the air exhaust chamber and the piston channel, and the interior of the connection channel is provided with a movable rod. One end of the movable rod is connected with the vertical rod, and the other end of the piston rod is provided with an arc-shaped part. The piston rod is provided with an arc-shaped groove cooperating with the arc-shaped part. A lateral second push force spring is disposed between the vertical rod and the air exhaust chamber. The device can achieve the automatic air exhaust of the hydraulic oil warehouse, also can be manually controlled to be started through the alarm unit according to the needs or the condition of oil gas pressure, is simple in structure, and is good in safety.

Description

technical field [0001] The invention relates to an automatic exhaust device, which belongs to the field of power systems, in particular to an automatic exhaust alarm device for a circuit breaker. Background technique [0002] The high-voltage circuit breaker is also called a high-voltage switch, which plays a control role in the high-voltage circuit. It cuts off or closes the no-load current and load current in the high-voltage circuit during normal operation, and quickly disconnects the circuit under the action of the relay protection device in case of a fault. . The working state of the circuit breaker, that is, its opening or closing action is controlled by its action mechanism. Therefore, from the medium used by the action mechanism, it can be divided into: oil circuit breaker, sulfur hexafluoride circuit breaker, compressed air circuit breaker devices, vacuum circuit breakers, etc. Most of the existing oil circuit breakers use hydraulic oil. During the operation, with...

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Problems solved by technology

The utility model system is relatively complicated. During the exhaust process, because the circuit breaker works in various electrical environments, the hydraulic oil gas discharged directly has the risk of accidental fire, which endangers the safety of the equipment.

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