A secondary equipment voltage test connection terminal

Abstract

The invention relates to the technical field of circuit connection, and especially relates to a connection terminal for a voltage test of secondary equipment. The terminal comprises an insulating pedestal and a plug-type short circuit piece, and two sides of the pedestal are correspondingly provided with at least two pairs of terminal seats. The interior of each terminal seat is provided with a terminal cavity connected with a conductor hole, and the interior of the terminal cavity is provided with a U-shaped clamping piece. The bottoms of the U-shaped clamping pieces in the two terminal seatswhich are set correspondingly are connected with conductive pieces, and two sides of the U-shaped clamping pieces are provided with stabilizing devices. Two sides of the pedestal are provided with slots, wherein one side wall of each slot is provided with a card slot, and the other side wall of each slot is provided with a stabilizing slot. The plug-type short circuit piece comprises an insulating part and a short-circuit part, and one side of the insulating part is provided with a clamping device. The terminal provided by the invention is simple in operation, is high in work efficiency, is stable and durable in connection, improves the short circuit efficiency, and is high in safety.

Description

technical field [0001] The invention relates to the technical field of circuit connection, in particular to a secondary device voltage test connection terminal. Background technique [0002] The secondary equipment voltage test connection terminal is a connector that connects the secondary voltage of each voltage level to the protective screen cabinet for various protective devices. It is widely used in the secondary compartment of the switch cabinet and behind the protective screen cabinet. . Problems existing in the connection terminals of the secondary equipment voltage test: 1. The metal part of the shorting piece is exposed, and the electrical distance is small. When working with the same power supply and different power supply cores, it is easy to cause accidental contact, discharge, etc., resulting in incorrect protection. Action; 2. The shorting piece is fixed by multiple screws, and the tightening of the fixing screws is prone to be different, resulting in poor sho...

AI Technical Summary

Problems solved by technology

Problems existing in the connection terminals of the secondary equipment voltage test: 1. The metal part of the shorting piece is exposed, and the electrical distance is small. When working with the same power supply and different power supply cores, it is easy to cause accidental contact, discharge, etc., resulting in incorrect protection. Action; 2. The shorting piece is fixed by multiple screws, and the tightening of the fixing screws is prone to be different, resulting in poor short-circuiting of individual points and affecting the output of the secondary voltage; 3. With the continuous increase of the short-circuit capacity of the power grid, the The insulation level requirements of the secondary equipment voltage test connection terminals are getting higher and higher, and the insulation level of the secondary equipment voltage test connection terminals currently used is deficient; 4. After the wires are inserted into the terminals, screws are generally used to fasten them. , the work efficiency is low, and it is easy to connect the wrong wire

[0003] For example, the Chinese patent announcement number is: CN 206211038 U, a kind of shorting device announced on May 31, 2017, including a wire, a conductive sheet and a bolt, and the first ends of at least two / bundle wires are connected to the conductive sheet, so The second ends of the at least two wires / bundle of wires are connected to each other, the conductive sheet is sleeved on the bolt through the through hole thereon, and the wire and the conductive sheet are integrally formed, although this device ensures the effective connection between the wire and the conductive sheet. Reliable contact, but the efficiency of tightening the bolts is too low, and it is easy to cause poor contact at individual points due to different tightening degrees of the fixing bolts

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