Junction box for switch mechanical characteristic tester

Abstract

The invention discloses a junction box for a switch mechanical characteristic tester, comprising at least two test wire coils, test wire outlets corresponding to the test wire coils, a motor, a leakage protector, a direct current inlet wire plug and an alternating current inlet wire plug, wherein the test wire coils are provided with a clutch device for resetting wire coils; the clutch device is driven by the motor; the test wire coils are coiled with test connecting rods connected with the direct current inlet wire plug and the alternating current inlet wire plug by a change-over switch; and the circuits in the junction box are all arranged on a printed circuit board. The junction box is arranged between a middle switch cabinet and a mechanical property tester of a switch to protect an instrument, the damaging possibility of the test instrument is greatly lowered, and the test efficacy is obviously improved. Adverse factors, such as easiness of wrong wiring, short circuit, damages of instrument terminal blocks because of repeatedly disassembling and connecting and the like in the electrical test of the equipment can be eliminated. The junction box for the switch mechanical characteristic tester is convenient to carry, and is safe and correct to wire, and no test wire is left in the equipment.

Description

technical field [0001] The invention is applied to various tests of the 10-35KV central switch in the power system, and is a junction box of a switch mechanical characteristic tester. Background technique [0002] At present, the KZY-3E switch mechanical characteristic tester is widely used in the central switch cabinet of the power system. This instrument is designed for 6-500kV low oil, high oil, vacuum, sulfur hexafluoride circuit breaker opening / closing time, synchronization, bounce speed stroke and other parameters according to the basic model, but due to the complex model of the circuit breaker, There are many types of operating mechanisms, and the products are updated quickly, especially for the various tests of the 10-35kV central switchgear, which is currently the most used in the power system, the existing settings of this instrument are difficult to meet the experimental requirements. [0003] When the test staff used the existing KZY-3E switch mechanical charact...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is: the wiring of the existing switch mechanical characteristic tester is complicated in the electrical test, the test line is easy to be entangled, easy to connect wrongly, short circuit, and the connecting terminals of the instrument and the instrument are easily damaged due to repeated disconnection.

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