Rated electric current designs breaker of transducer leakage of electricity

The open circuit of leakage of electricity of 1 second above closes commencement to use, but it is certain to do not make sure open circuit of this leakage of electricity closes not to jump, must consider following the size of residual current of system of decision of each element ability, and the phenomenon that breaker of the leakage of electricity after the switch of open circuit of leakage of electricity with proper make choice of and necessary step will improve power transmission jumps. The formula of computation of choice of rated electric current of switch of open circuit of general leakage of electricity is as follows: IIg1 of 〕 of Ig1+Ign+3*(Ig2+Igm) of 〔 of 10* of △ N ≧, Ig2: The residual current of the cable when commerce runs. Ign: Transducer inputs the residual current of side noise filter. Igm: The motor residual current when commerce runs. Be informed by afore-mentioned formulary relevant and fluctuant parameter, the factor that can affect residual current size has: (1) the residual current of cable (have 2 shares) the residual current with the long cable of filter of switch of open circuit of leakage of electricity. The residual current with the long cable of transducer motor. (2) the residual current of filter (include transducer inside) . (3) motor residual current. Each part residual current is worth (unit: MA) (1) the actual cable of residual current =A*(of cable is long / 1000m) ; Cable firm offers each line way the residual current of every 1000m is worth A. (2) the residual current of filter (include transducer inside) -- transducer supplier is offerred. For example: The stage amounts to VFD055B43B to be maximum of 26TDT1W4B4 its residual current to be 70mA with filter. (3) motor residual current -- motor supplier is offerred. CNC Milling CNC Machining