Collision simulation device for combined electric appliance releasing linkage test

Abstract

The invention relates to a collision simulation device for a combined electric appliance releasing linkage test. The collision simulation device for the combined electric appliance releasing linkage test comprises a machine frame, a collision rod, a spring, a moveable iron core, an electromagnetic coil and a locking device, wherein the spring is used for applying an elastic action force in the collision direction to the collision rod; the collision rod has an energy storage position and a release position on the motion displacement; the moveable iron core is in transmission connection with the collision rod; the electromagnetic coil drives the moveable iron core to move; the locking device is used for stopping and limiting the collision rod in the collision direction through a corresponding trigger stopping structure; the locking device comprises a spring bolt; the spring bolt has a stop position and an unlocking position on the motion displacement; the stop position is used for stopping and limiting the collision rod, which moves to the energy storage position, in the collision direction; the unlocking position is used for releasing the collision rod and removing stopping and limiting; the locking device also comprises an electric control driving device; the electric control driving device is in transmission connection with the spring bolt and is used for driving the spring bolt to move between the unlocking position and the release position. The collision simulation device for the combined electric appliance releasing linkage test can realize automatic energy storage and automatic triggering of the collision rod.

Description

Technical field [0001] The invention relates to an impact simulation device for a combined electrical appliance trip linkage test. Background technique [0002] Combined electrical appliances require the automatic opening of the load switch to be triggered by an overcurrent release or a parallel release. GB16926-2009 "High Voltage AC Load Switch-Fuse Combination Electrical Appliances" stipulates that both the type test and factory test of the voltage AC load switch-fuse combination electrical equipment must include the tripping linkage test, and it is specified in the standard to facilitate the implementation of the trip. For linkage test, a device that simulates the operation of a fuse striker can be used. In order for the switchgear manufacturer to debug the switchgear tripping mechanism, an effective impact simulation device must be designed to meet the needs of repeated debugging and use of the switchgear tripping mechanism. [0003] Existing impact simulation devices, such a...

AI Technical Summary

Problems solved by technology

However, the moving iron core in the above-mentioned impact simulation device needs to be manually pushed to the energy storage position. It is very inconvenient to complete hundreds of tests stipulated by the national standard, and now the fully insulated, fully enclosed inflatable cabinets and solid insulated switchgears are developing rapidly. Since the existing impact simulation device will be difficult to realize the manual operation of the moving iron core to the energy storage position, it cannot meet the actual test requirements

In addition, since the triggering of the moving iron core is driven by the coil, the resultant force generated by the coil and the magnetic steel on the moving iron core will affect the actual force of the spring on the moving iron core, so the mechanical characteristics of the output force of the electromagnet and the actual fuse The output force characteristics of the striker are quite different, and the working state and output force characteristics of the actual fuse striker cannot be fully simulated. The accuracy and equivalence are poor, and the test results are inaccurate.

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