A junction box for safe arc extinguishing of metering secondary circuit

Abstract

The invention discloses a junction box used for safe arc extinguishing of a metering secondary circuit, and relates to the technical field of power equipment; the junction box comprises a box body, an inflow-side current terminal, an outflow-side current terminal, a rotary knob, The arc-extinguishing grid piece, the contact connecting piece and the movable rod on the turning button, the contact connecting piece is electrically connected with the current terminal on the outflow side, the arc-extinguishing grid piece is located next to the contact connecting piece, and one end of the movable rod is connected with the turning button, and the movable rod is connected to the turning button. The other end of the rod is the free end, which is located between the arc-extinguishing grid and the contact connecting piece. The movable rod is in sliding contact with the current terminal on the inflow side and is electrically connected. The rotating knob drives the movable rod to slide on the current terminal on the inflow side. The free end of the rod is overlapped with the contact connecting piece and electrically connected or the free end is separated from the contact connecting piece and is close to the arc chute; Arc quenching grid, contact connecting piece and movable rod, etc., realize the safety of meter installation and electricity connection.

Description

technical field

[0001] The invention relates to the technical field of electric power equipment, in particular to a junction box used for safe arc extinguishing of a metering secondary circuit. Background technique

[0002] In the power marketing work, when the meter installation and power connection team conducts troubleshooting or replaces the electric energy meter and concentrator, it is necessary to disconnect the voltage terminal and short-sealed current terminal in the secondary circuit first to ensure that there is no voltage in the secondary circuit. After the current is adjusted, start a series of specific tasks such as removing the various terminals at the end of the electric energy meter or the concentrator.

[0003] In the opening and closing of the voltage and current connecting pieces, in addition to the need to pay attention to the insulation of tools and people to prevent electric shock, it is also necessary to pay attention to prevent the generation of arcs ...

Examples

Embodiment Construction

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0038] Many specific details are set forth in the following description to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art...

technical field

[0001] The invention relates to the technical field of electric power equipment, in particular to a junction box used for safe arc extinguishing of a metering secondary circuit. Background technique

[0002] In the power marketing work, when the meter installation and power connection team conducts troubleshooting or replaces the electric energy meter and concentrator, it is necessary to disconnect the voltage terminal and short-sealed current terminal in the secondary circuit first to ensure that there is no voltage in the secondary circuit. After the current is adjusted, start a series of specific tasks such as removing the various terminals at the end of the electric energy meter or the concentrator.

[0003] In the opening and closing of the voltage and current connecting pieces, in addition to the need to pay attention to the insulation of tools and people to prevent electric shock, it is also necessary to pay attention to prevent the generation of arcs ...

Examples

Embodiment Construction

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0038] Many specific details are set forth in the following description to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art...

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