Leakage disengaging deivce of earth leakage breaker

Abstract

The invention relates to a creepage disengaging device for a creepage breaker, with a subject of improving the connection and configuration structure of the components of the creepage disengaging device loaded in the creepage breaker so as to achieve a small size and the compactness. The solution scheme is as below: in the creepage disengaging device which is provided with a creepage tripping coil (8), a tripping actuator (9) connected with a plunger of the creepage tripping coil and an upward bounced creepage display button (10), the creepage tripping coil is a magnetism maintaining electromagnet which has a magnetic yoke (8a) provided with a permanent magnet (8b) and a degaussing coil (8c). The electromagnet is arranged on an ordinate axis and has one side at the upper part connected with the creepage display button through the plunger of the creepage tripping coil. Besides, the tripping actuator which moves upwards and downwards under a force exerted upwards by a tripping spring is arranged on one side of the lower part of the tripping coil.

Description

technical field [0001] The invention relates to an assembly structure of a leakage tripping device mounted on a leakage circuit breaker suitable for a low-voltage power distribution system. Background technique [0002] The circuit of the above earth leakage circuit breaker is shown in FIG. 7 . In this figure, symbol 1 represents the main circuit; 2 represents the contact point of the main circuit; 3 represents the zero-phase converter using the main circuit 1 as the primary conductor; 4 represents the leakage detection circuit, which is used for the secondary The output detects the ground current flowing through the main circuit 1; 5 indicates the opening and closing mechanism of the main circuit contact 2; 6 indicates the opening and closing operating handle; Disconnected; 8 represents the tripping coil; 9 represents the actuator, which accepts the action of the tripping coil 8 to disconnect the opening and closing mechanism 5; 10 represents the leakage display button, wh...

AI Technical Summary

Problems solved by technology

[0009] If the existing leakage tripping unit shown in FIG. 9 is reconsidered from the above-mentioned point of view, then for the structure in which the tripping coil 8, the tripping actuator 9, and the leakage display button 10 are assembled on the assembly base 12 as independent components, And the tripping coil 8 and the tripping actuator 9 are arranged along the horizontal axis direction. Since the pop-up type leakage display button 10 is arranged along the vertical axis direction, etc., the orientation of the components is different, and it is difficult to make the whole device compact. It is difficult to effectively use the space in the main case of the circuit breaker due to the large size

Images