Residual spring path testing device for electrical machine slot head spring

摘要

The testing device uses a displacement sensor (73) and a positioning device (51,52,53) supported by a carrier (2) and is positioned in the gap between the stator and the rotor of the electrical machine, with support elements (55,56) for securing it in the latter gap. The carrier has a pressure element (3) providing a force acting on the wedge securing the slot head spring to the stator, with the displacement sensor detecting the resulting displacement of the wedge.