Motor Starting & Control Resistors Specification for an air-cooled resistive starting system for an electric motor with a power of 500KW, with a maximum resistance of 3x1.8Ω; Minimum rotor voltage of 710VAC; Rotor current of at least 450A; Starting time: maximum 30s; Number of starting steps: 6, starting torque from 0.5 to 1.2Mn; Minimum number of starts per hour: 5; Start control: to allow selection locally or remotely; Control voltage 230VAC; Protection rating IP23/IP54 (resistive part/control part); Cooling method: air; Ambient operating temperature: from -360C to +450C; Stator rated voltage 6000VAC, stator rated current: 57.3A; RPM = 989; Signaling to be implemented at 24VAC with an isolation transformer; To have a built-in heating system; humidity and temperature controller; Maximum dimensions: width (1200mm double-leaf door with 600mm each leaf), depth 800mm, height 1800mm; The cabinet to be equipped with lifting eyes; Cable entry/exit from the bottom side.
Buyer MarketNorth Macedonia
CategoryElectronics
SubcategoryOther electronics
QuantityTBD
Deadline2026-08-31T15:59:59.000Z
Statusquoting
Sourcing Requirements
Motor Starting & Control Resistors Specification for an air-cooled resistive starting system for an electric motor with a power of 500KW, with a maximum resistance of 3x1.8Ω; Minimum rotor voltage of 710VAC; Rotor current of at least 450A; Starting time: maximum 30s; Number of starting steps: 6, starting torque from 0.5 to 1.2Mn; Minimum number of starts per hour: 5; Start control: to allow selection locally or remotely; Control voltage 230VAC; Protection rating IP23/IP54 (resistive part/control part); Cooling method: air; Ambient operating temperature: from -360C to +450C; Stator rated voltage 6000VAC, stator rated current: 57.3A; RPM = 989; Signaling to be implemented at 24VAC with an isolation transformer; To have a built-in heating system; humidity and temperature controller; Maximum dimensions: width (1200mm double-leaf door with 600mm each leaf), depth 800mm, height 1800mm; The cabinet to be equipped with lifting eyes; Cable entry/exit from the bottom side.