SIMOTICS HV Series Metall Siemens

Обзор



General description

SIMOTICS HV Series Metals are rolling mill motors and are used worldwide in the metals industry in rolling mills. Tailored to address particular customer requirements, they are used as main drives in almost all rolling applications and all rolling mill types – in five different types of construction.

Their extremely high smooth running properties and dynamic performance play a decisive role in achieving maximum product quality – even at high power ratings. Their range of power ratings extends from 0.5 MW up to 16.5 MW at speeds of between 20 and 1500 rpm.

For the typical requirements in the rolling mill area – wide speed control range with a constant maximum power – SIMOTICS HV Series Metals motors can provide up to 250% rated torque over the complete speed range without requiring any special measures. The synchronous motors – with cylindrical rotor – can even withstand the highest forces, surge loads and step-like load changes.

In spite of the enormous loads, the motors have a high speed stability and extremely low torque ripple. With 30 to 2460 kNm, the converter-fed motors also cover a wide torque range.

Особенности



Features

Customer benefits

Wide speed control range with constant power rating (field weakening)

Optimum adaptation to the torque and speed requirements of the rolling process

Overload capability up to 275% of the rated torque: minimum speed changes – also for maximum load changes (e.g. for the load impact of heavy passes)

Sufficient power reserves for process tolerances and the ability to add new steel types to the range.

Low moment of inertia, e.g. for reversing motors

Short reversing times for a high throughput, high control quality in the drive train

Slip-ring excitation

Power reserves for high throughput. Constant tension over the complete speed range, outstanding control dynamic performance secures consistently high quality of the rolled material

Pedestal bearings for high power ratings: can withstand axial surge loads of up to 700 tons

Absorbs the axial forces of gearless rolling stands even in fault situations

Rugged technology with a long service life, proven Micalastic insulation system, cylindrical rotor

Continuous disturbance-free motor operation guarantees the highest degree of availability of the complete plant

Compact, material-optimized motor design

Low capital investment, lower lifecycle costs

Adapted to address customer requirements: e.g. existing foundations

Cost/time saving for retrofits ensures a fast payback time of the investment

Drive system and plant solution possible

Everything from a single source from sector experts, no unnecessary interfaces, high reliability through components that are harmonized and coordinated with one another

Large installed base – more than 3300 rolling mill motors worldwide

Process know-how secures high-quality, competent service from Siemens head office or a Siemens partner close to you



Технические данные



Brief overview

Motor type:

Synchronous motor with laminated cylindrical rotor
Optional: squirrel cage induction motor

Type of construction:

IM1001 / IM7311 / IM7315
Optional: IM3011 and IM3231 (edger)

Power rating:

500 kW - 16.5 MW

Speed:

20 - 1500 rpm (typical base speed: 50 - 900 rpm)

Overload capability:

2.0 x Mrated continuously running rolling mill motors, coilers
2.5 x Mrated edgers, beam rolling mills, reversing mill motors (rougher) (up to 2.75 Mrated maximum)

Speed:

20 - 1500 rpm (typical base speed: 50 - 900 rpm)

Voltages:

Designed for converter operation

Cooling type:

Water/air, forced ventilation
Optional: ventilation through the foundation/pipe connection

Degree of protection:

Motor housing IP44, slip-ring housing IP23
Optional: motor housing IP54, slip-ring housing IP54