AMP AC Square Motors - T-T ELECTRIC - #4

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4 General information T-T ELECTRIC proposes a series of square frame ac motors for variable speed drives applications. This asynchronous motor has been developed and designed to achieve the same dynamic performance as for DC motors series. The AC square motor complies with IEC600 34 standards and responds to the requirements for most industrial applications. Its flexible square frame design facilitates its integration into all types of machinery. AMP are 3 phase asynchronous squirrel cage 4 poles motors manufactured in degree of protection IP23 and IP54/55. 7 sizes (112-132-160-180-225-280-355) are proposed covering a power range from 17 to 1000 kW at 1500 rpm. Operating Curves The mechanical and technical characteristics of AMP motors can be compared to DC motors. P = cst N (min-1) Base speed Max elec speed Max mech. speed P = 1/n T = cst T = 1/n T = 1/n2 nN n1 nmax Torque and Power curves according to Speed Frame Size Core Length 112 A,B,C 132 A,B,C 160 A,B,C 180 A,B,C 225 A,B,C 280 A,B,C 355 A,B,C Example : AMP 180 – 4 B AMP : type of motor 180 : frame size / centre height in mm 4 : number of poles B : core length Type of designation Speed ranges: - from 0 to nN : Constant Torque - from nN to n1: Constant Power - from n1 to nmax: Power decreasing as 1/n (Field weakening range) As standard, the motor is wound for nominal voltage 400V – for base speed nN In IP23: n1 1.6 nN In IP54/55: n1 2.1 nN