Intelligent substation vector test combination box

Abstract

The invention relates to the technical field of tool boxes, in particular to an intelligent substation vector test combination box including a cable box and an instrument box which are assembled in matched and buckled manners. The instrument box comprises a box body and a box cover, the box body is attracted to the vertical metal wall through a bottom magnet, and the box body is provided with a volt ampere meter accommodating box, a tool accommodating box and a clamp-shaped current transformer accommodating box inside; the cable box is provided with a cable coil which is provided with a crank and which is used for winding a voltage test cable, the crank extends out of the cable box, the cable coil in the cable box can be rotated by moving the crank, handle positions are arranged on left and right sides of the cable box, one side of the cable box is provided with a penetrating hole in the axial direction of the cable coil, the voltage text cable penetrates the penetrating hole, and one side of the cable box provided with the crank is further provided with a wiring post. The intelligent substation vector test combination box has the advantages that the vector test procedure is simplified effectively, the power conducting time is shortened, and the personnel safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of toolboxes, in particular to a vector test combination box for an intelligent substation. Background technique [0002] The vector test is the last link in the power transmission of the new equipment in the substation. It is used to detect the correctness of the current and voltage circuit wiring (including the effective value, phase and phase sequence of the current and voltage) and prevent the malfunction of the relay protection device. In conventional substations, since the current and voltage data required for the vector test are integrated on the protection screen of the secondary room, the vector test is relatively simple, and the tester usually only needs to carry a phase meter, a current test line, and two short voltage test lines. The test line can complete the test. However, the current and voltage analogs of the smart substation are located in different smart terminal control cabinets outdoors,...

AI Technical Summary

Problems solved by technology

However, the current and voltage analogs of the smart substation are located in different smart terminal control cabinets outdoors, and the control cabinets in different intervals are far away. When performing vector tests, it is necessary to use long-distance cables to send the bus reference voltage to the measurement intervals. The operation is cumbersome and time-consuming. , and there is a greater risk when crossing the charged interval

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