Tube-cooled heat exchanger up to 17,000 kW
7Pages

tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:7.00pt "Arial", sans-serif; } .font1 { font:9.00pt "Arial", sans-serif; } .font2 { font:14.00pt "Arial", sans-serif; } Design spcifications Design ■ To relevant standards: IEC, VDE, DIN, ISO, EN ■ With squirrel-cage or slipring rotor ■ Degree of protection IP 55 / IP 65 Cooling method IC511, suitable for both indoor and outdoor installation ■ Non Sparking to EN 60079-15 ■ Type of protection Exe and Exp to EN ■ Rated voltages form 2 to 15 kV ■ Rated frequency 50 or 60 Hz ■ Converter-fed or connected to the system ■ Number of poles 2p=2 to 8 (higher num-ber of poles on request) ■ Construction IM B3 and IM V1 (others on request) ■ Design can be modified to meet custo-mer's specification ■ Motors can be designed for voltages < 1000 V, or for converter-fed operation 3

Compact and rigid welded fabrication. The load-carry-ing frame consists of two end plates, connected by strong ribs. Ribs are braced against each other and are connected to the frame mantle. With horizontal machines, further rigidity is provided by the motor feet.Cooling tubes of stainless steel are expanded into theend plates.Slipring motors have a separate slipring housing. > 1/0889 1/0099 Schorch paint systems are well tried and tested. They do not con-tain any lead, heavy metals or silicone.Prior to painting, all surfaces are thoroughly sand-blasted. Withbasic-design machines, the paint...

Lubricators and grease slingers ensure proper lubrica- tion of the bearings. The outer bearing covers are pro- vided with a space for old grease and a grease drain. > Shaft seals are maintenance free and provide protec- tion against dirt and spray water in accordance with degree of protection IP 55. The type of bearings to be used is determined by theconstruction, the speed, the output and any additional loads of the motor. Depending on these parameters or the customers specification, antifriction or sleeve bea- rings are provided. As shaft seals, felt rings are provided on the motor side...

tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.00pt "Arial", sans-serif; } .font1 { font:4.90pt "Arial", sans-serif; } .font2 { font:6.00pt "Arial", sans-serif; } .font3 { font:6.30pt "Arial", sans-serif; } .font4 { font:7.00pt "Arial", sans-serif; } .font5 { font:9.00pt "Arial", sans-serif; } .font6 { font:14.00pt "Arial", sans-serif; } Ventilation and noise Ventilation system Tubes, concentrically arranged around the active part, act as air/air heat exchangers. Heat generated within the motor ist taken up by the cooling tubes which are cooled by external air. The...

Developments in the field of insulation led in the 80Βs to the intro-duction of the V-Celastik > insulating system. This is a system usingthe VPI technique which corresponds to Class F. VPI means that the complete stator (core and windings) isimpregnated with artificial resin in a vacuum/pressure process. The result is a winding with excellent thermal, electrical and mechanical properties.The constantly high quality of the high-voltage insulation is en-sured by the latest in manufacturing equipment. > 7/0267 Wound stator prior to impregnation The impulse withstand level of the windings is...

In the basic design, the deep-bar squirrel-cage windingconsists of copper bars, brazed to short-circuiting rings. Depending on rotor stresses, either butt or grooved bar- to-ring joints are used. The comparatively low resistance of the copper windingresults in low current/heat losses and, consequently, in high efficiencies. For higher starting torques, or to meet the require-ments of particular torque characteristics, special slot designs can be used. The copper bars are driven into the core slots and pee-ned to ensure absolutely positive seat- ing. This prevents any movement of the cage...

tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.00pt "Arial", sans-serif; } .font1 { font:6.00pt "Arial", sans-serif; } .font2 { font:7.00pt "Arial", sans-serif; } .font3 { font:9.00pt "Arial", sans-serif; } .font4 { font:14.00pt "Arial", sans-serif; } Terminais and Terminais hnxes Operator protection Terminal boxes have a high short-circuit strength (terminais) and are highly short-circuit-proof (shatterproof). In the event of a fault, the internai pressure is vented in one direction only. Injuries due to flying debris are prevented. These properties have been verified...