Pluggable safety junction box for site calibration of electric energy meter

2012 
The embodiment of the invention discloses a pluggable safety junction box for site calibration of an electric energy meter. The pluggable safety junction box comprises a connector socket and a connector plug, wherein the connector socket comprises a socket shell as well as current transformers, current sampling metal pieces and voltage sampling metal pieces; the current transformers, the current sampling metal pieces and the voltage sampling metal pieces are arranged in a cavity which is formed by the socket shell; the socket shell is provided with current sampling jacks, voltage sampling jacks and insulation jacks; secondary sides of the current transformers are connected with the current sampling metal pieces, and current lines of the electric energy meter to be measured are connected with primary sides of the current transformers; the voltage sampling metal pieces are connected with voltage lines of the electric energy meter to be measured; and the connector plug comprises a handheld part, current sampling plugs, voltage sampling plugs and insulation plugs. According to the pluggable safety junction box for the site calibration of the electric energy meter, the open circuit of a secondary current loop is avoided when the pluggable safety junction box is used; and the potential safety hazard of the traditional junction box is overcome.
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