Torque limiter is divided into steel ball type and friction type
What is the meaning of the grounding of the torque limiter of the gearmotor? In general language, the term "ground" refers to connecting the so-called "ground" to the conductive ground that provides reference potential. Ground wire is a conductive element with good electrical contact with the earth, and its connection point is often introduced from the outside of the earth. The ground wire can be bar steel, flat stirrup or steel plate.
Why should the torque limiter of the reduction motor be grounded? The grounding potential connection has many purposes: protective measures according to the current VDE regulations (DIN VDE 0100) and low potential regulations (different countries shall be distinguished); Prevent interference radiation and injection according to EMV regulations; Determine the general operation potential of electrical instruments and equipment in order to meet the requirements; Reduction motors, torque limiters and other applications may not be relevant to these grounding recommendations. Electric equipment usually includes one or more equipment commonly referred to as "main body". According to DIN VDE 0100, "solid" is a touchable element, which has potential only in case of failure compared with "live" elements. The potential of the reduction motor is a specific contact potential, and the reduction motor will generate dangerous current to human body in case of indirect contact. These so-called "bodies" include cabinets, shells, contactor components, wiring boards, etc. Grounding the protective torque limiter prevents contact potential. Protective grounding is used by connecting to a separate local protective grounding conductor through the protective conductor of the power supply or through a local protective conductor (underground cable).
