Induction Motors 2-Pole Stiff Shaft - WEG
Induction Motors 2-pole Stiff Shaft
Induction Motors 2-pole Stiff Shaft
Electric Machinery (EM) builds a true stiff shaft induction motor. Converteam (EM) builds true stiff shaft These motorsElectric deliver Machinery the reliability and high aquality construction inductioninmotor. Theseutility, motorsand deliver reliability and high quality required petroleum, otherthe applications. construction required in petroleum, utility, and other applications. •• Tilting Tiltingpad padjournal journalbearings bearingsare areused usedtoto provide provide the thehighest highestpossible possiblestability stability under under all all operating operatingconditions. conditions. • Stiff shaft motors are built to minimize • Stiff shaft motors are built to minimize vibration at all operating speeds. vibration at all operating speeds.
Rotor Rotor
Induction motor driving a pump at an oil refinery.
Ranges Ranges Output: 2,000 to 8,000 HP Output: to 8,000 Speed: 2,000 up to 3,600 RPM HP Voltage: up 2,300 to 13,800 VAC Speed: to 3,600 RPM Voltage: 2,300 to 13,800 VAC
Features
Features
• shaft” In “stiffinduction shaft” induction motors, the • In “stiff motors, the first lateral first lateral critical of the entire motor critical of the entire motor (including effects of (including effectsofofjob actual stiffness/ actual stiffness/softness bearing, bearing softness of job bearing, bearing brackets, frame and as installed on the brackets, frame and 15% as installed on the foundation) must be at least above 2-pole foundation) must be at least 15% above synchronous speed. 2-pole synchronous speed. • Custom engineered and manufactured to handle • Custom engineered and manufactured your high load and starting torque requirements. to handle your high load and starting torque requirements. • Used in variable speed applications using variable • Used in variable frequency power sources.speed applications using variable frequency power sources.
• Rotor construction • Rotor construction Heavy-duty rotor construction is Heavy-duty rotor construction is designed for adequate torque, high designed for adequate torque, high thermal capacity, mechanical rigidity, thermal capacity, mechanical rigidity, low noise level, and smooth operation. low noise level, and smooth operation. Ventilated rotor construction provides Ventilated rotor construction provides even cooling for improved thermal even cooling for improved thermal stability. The assembled rotor is stability. The assembled rotor is accurately machined and dynamically accurately machined and dynamically balanced at rated speed to achieve balanced at rated speed to achieve lowest levels of residual unbalance. lowest levels of residual unbalance. • Rotor cage bars • Rotor cage bars copper alloy cage bars The oxygen-free The oxygen-free alloy cage are silver brazedcopper into special milledbars are silver brazed intocircular specialend milled pocket joints in the rings. pocket the circular rings. The endjoints ring in joints provide end greater The end and ring locking joints provide greater contact than other methods contact and locking thanwhich other methods of attaching end rings, of attaching end rings, the which significantly prolongs life of the significantly prolongs the life of the rotor. Each joint is ultrasonically-tested rotor. Eachcage joint integrity. is ultrasonically-tested to ensure to ensure cage integrity. • Rotor laminations Low loss, non-segmental rotor • Rotor laminations laminations are tightly anchored to the Low loss, non-segmental rotor shaft. Each lamination is individually laminations are tightly anchored to the insulated to minimize stray losses. shaft. Each lamination is individually to minimize stray losses. • insulated Rotor shaft The shaft will be forged steel, accurately • Rotor shaftand smoothly finished where machined The shaft will be forged steel, accurately required. machined and smoothly finished where required.
WARRANTY
• Meets• rigorous vibrationvibration requirements of API 541 Meets rigorous requirements standards to provide dependable operation. of API 541 standards to provide dependable operation.
• Stator construction Stator The stator is composed of a supporting Stator construction • structure, a core of electrical laminations Theinsulated stator is composed of a grade supporting and windings. High Robust bearing a bracket with all welded construction. structure, core of electrical laminations silicon steel laminations that build up and insulated windings. High the core are precision punched grade from silicon steelsheets. laminations that build Stator core-plated Pressed and heldup the core are precision punched from •between end plates, these laminations Stator construction core-plated sheets. Pressed and held are stacked the support and The statorend isincomposed of astructure supporting between plates, these laminations spaced for radial ventilation to ensure structure, a core of electrical laminations are stacked in the support structure and even throughout andcooling insulated windings. the Highcore. gradeThe spaced for radial ventilation to ensure frame is steel welded and machined to up silicon laminations that build even cooling throughout the the core are precision punched from The withstand stresses exerted by core. electrical frame is welded andPressed machined toand core-plated sheets. held and mechanical forces in theand core withstand stresses exerted by electrical between plates, these provide lowend vibration levels.laminations and in the core and and are mechanical stacked in theforces support structure provide low vibration levels. spaced for radial ventilation to ensure • Stator winding insulation
2-pole induction rotor with axial air ventilation.
Industry standards
• The stiff shaft rotor has 5-8 times stiffer Electric Machinery EM the manufactures capable of passing water immersion • construction The stiff shaftthan rotor has 5-8shaft timesrotor. stiffer a flexible synchronous motorsby to NEMA meet allMG current test as specified 1 and construction a flexible shaft rotor. This extremelythan rugged construction industry standards including NEMA MG 1,isIEEE provides IEEE 112. Abrasion-resistant coating This extremely rugged construction high dependability. 115, IEC 60034/60079, API 546, and ISO available for protection in demanding provides high dependability. Placement of rotor bars in milled end ring pockets 2-pole induction rotor with axial air ventilation. enhance reliability. standards. Third party 9001:2000 environments. • Stator frame is much heavier than • Stator frame is much heavier than CENELEC/ATEX approval or CSA labeling is standard motor frames. standard motor frames. capable ofupon passing the water immersion • The stiff shaft rotor has 5-8 times stiffer available request. Enclosures test as specified by NEMA MG 1 and construction than ainduction flexible shaft rotor. • Stiff Stiffshaft shaft induction motors usedinin motors used Typical motor enclosures include DPG IEEE 112. Abrasion-resistant coating is This extremely rugged construction variable speed speed applications applicationsfrom fromzero zerototo variable Enclosure (IC01/IP22), WP I (IC01/IPW23), WP II available for protection in demanding provides high dependability. operatingspeed speedwill willnot notpass pass maximum operating Typical motor enclosures are WP II (IC01/ (IC01/IPW24), TEFV (IC31/37/IP44), TEWAC environments. through thefirst firstcritical critical speed. is much heavier thanspeed. through the IP24), TEFV (IC37/IP44), TEWAC (IC817/ • Stator frame (IC817/IP54), and TEAAC (IC611/616/IP54). standard motor frames. IP54), and TEAAC (IC611 or IC616/IP54). Enclosures • Critical speed problems encountered in • Critical speed problems encountered in Advantages over Flexible • Stiff shaft induction motors in typical designs areused avoided. Typical motor enclosures include DPG typical designs are avoided. variable speed applications from zero to Advantages over Flexible (IC01/IP22), WP I (IC01/IPW23), WP II
Shaft Induction Motors
maximum operating speed will not pass (IC01/IPW24), TEFV (IC31/37/IP44), Shaft Motors • Stiff Induction shaft machines improveTEWAC reliability through the first critical speed. (IC817/IP54), and TEAAC (IC611/616/IP54). • Stiff shaft machines improve reliability
by eliminating magnification of even cooling throughout the core. The by eliminating magnification of unbalance in the operating range. The • Critical speed problems encountered in • The Duraguard™ insulation system is a Stator Advantages over Flexiblerange. frame winding is weldedinsulation and machined to typical designs are avoided. unbalance in the operating The stiff shaft machine can handle greater vacuum pressure epoxy-mica The Duraguard™ insulation is a Shaft withstand stressesimpregnated exerted by system electrical Induction Motors stiff shaft machine can handle greater amounts of unbalance due to the fact insulation systemforces that provides vacuum pressure impregnated and mechanical in the coreepoxyand • Stiff shaftthe machines improve reliability amounts of unbalance due to above the fact that response peaks are Class F thermal capability, outstanding mica insulation system that provides provide low vibration levels. by eliminating magnification of above that the response peaks are Converteam Electric Machinery operating speed. dielectric properties, superioroutstanding moisture Class F thermal capability, unbalance in the operating range. The • Stator winding insulation operating speed. 800 Central Avenue NE and chemical resistance and the superb dielectric properties, superior moisture stiff shaft machine can handlerotor greater • The stiff shaft induction has a The Duraguard™ insulation system is a Minneapolis, Minnesota 55413 mechanical integrity of an epoxy resin and chemical resistance and the superb amounts of length unbalance to the fact vacuum pressure impregnated epoxyshorter anddue larger diameter to • The stiff shaft induction rotor has a United States system. It is a sealed insulation system mechanical integrity an epoxy resin thatprovide the response peaksbelow are above mica insulation systemofthat provides operation the first lateral shorter length and larger diameter to Tel: +1 612 378 8000 Converteam Electric Machinery capable of passing the water immersion operating speed. system. It is a sealed insulation system Class F thermal capability, outstanding critical speed. provide operation below the first lateral Fax: +1 612 378 8051 800 Central Avenue NE test as specified by NEMA MG 1 and dielectric properties, superior moisture • The stiff shaft induction rotor has a critical speed. Minneapolis, Minnesota 55413 Typical IEEE Abrasion-resistant coating is and115. chemical resistance and the superb Shaft Vibration during Shop Coastdown shorter length and largerTest diameter to UnitedNorth States America Headquarters: mechanical integrity of in andemanding epoxy resin available for protection provide operation below the first lateral 4 Tel: +1 612 378 8000 Inc. Converteam system. It is a sealed insulation system environments. critical speed.
WARRANTY OVERSPEED
OVERSPEED
3 1.5 MILS unFILTEREd API 541 Limit
OPERATING
4
2 1
Fax: +1Pittsburgh, 612 378 8051 Pennsylvania
Shaft Vibration during Shop Coastdown Test
OPERATING
MILS PEAK-PEAK
MILS PEAK-PEAK
3 Typical
Electric Machinery
Tel: +1 412 967 0675
800 Central Avenue NE North America Headquarters: Converteam Inc. Minneapolis, Minnesota 55413 France Tel: +33 1 77 31 20 00 Pittsburgh, Pennsylvania United States Tel: +49 30 76 22 0 Tel: +1 Germany 412 967 0675 Tel: +1 612 378 8000 UK
Tel: +44 1788 563563
Fax: +1 612 378 8051
France Brazil Tel: +33 1Tel: 77 +55 31 2031 003330 5800 EM Results With 4X www.electricmachinery.com Germany 22905 0 333 3667 Canada Tel: +49 30 Tel:76+1 1.5 MILSAllowable unFILTEREd API 541 LimitAdded unbalance UK Tel: +44 1788 563563 China Tel: +86 21 6442 1666 01 Brazil India Tel: +55 31 3330 Tel: +915800 44 2440 0900 0 500 EM Results 1500 With 2000 2500 3000 3500 4000 4500 4X CanadaRussia Tel: +1 905 Allowable unbalance Added Tel:333 +73667 495 225 1916 RPM China Tel: +86 21 6442 1666 0 www.converteam.com India Tel: +91 44 2440 0900 0 500 1500 2000 2500 3000 3500 4000 4500 Russia Tel: +7 495 225 1916 RPM 2
www.converteam.com
© Electric Machinery 2011. Publication NA.10056.gb.01-11.01. Electric Machinery, the Electric Machinery logo and any version thereof are trademarks and service marks of Electric Machinery. The other names mentioned, registered or not, are the property of their respective companies.
© Converteam 2011. Publication NA.10056.gb.01-11.01. Converteam, the Converteam logo and any version thereof are trademarks and service marks of Converteam. The other names mentioned, registered or not, are the property of their respective companies.
Stator
Placement of rotor bars in milled end ring pockets enhance reliability.
© Converteam 2011. Publication NA.10056.gb.01-11.01. Converteam, the Converteam logo and any version thereof are trademarks and service marks of Converteam. The other names mentioned, registered or not, are the property of their respective companies.
Robust bearing bracket with all welded construction.
Induction Motors 2-pole Stiff Shaft
Electric Machinery (EM) builds a true stiff shaft induction motor. Converteam (EM) builds true stiff shaft These motorsElectric deliver Machinery the reliability and high aquality construction inductioninmotor. Theseutility, motorsand deliver reliability and high quality required petroleum, otherthe applications. construction required in petroleum, utility, and other applications. •• Tilting Tiltingpad padjournal journalbearings bearingsare areused usedtoto provide provide the thehighest highestpossible possiblestability stability under under all all operating operatingconditions. conditions. • Stiff shaft motors are built to minimize • Stiff shaft motors are built to minimize vibration at all operating speeds. vibration at all operating speeds.
Rotor Rotor
Induction motor driving a pump at an oil refinery.
Ranges Ranges Output: 2,000 to 8,000 HP Output: to 8,000 Speed: 2,000 up to 3,600 RPM HP Voltage: up 2,300 to 13,800 VAC Speed: to 3,600 RPM Voltage: 2,300 to 13,800 VAC
Features
Features
• shaft” In “stiffinduction shaft” induction motors, the • In “stiff motors, the first lateral first lateral critical of the entire motor critical of the entire motor (including effects of (including effectsofofjob actual stiffness/ actual stiffness/softness bearing, bearing softness of job bearing, bearing brackets, frame and as installed on the brackets, frame and 15% as installed on the foundation) must be at least above 2-pole foundation) must be at least 15% above synchronous speed. 2-pole synchronous speed. • Custom engineered and manufactured to handle • Custom engineered and manufactured your high load and starting torque requirements. to handle your high load and starting torque requirements. • Used in variable speed applications using variable • Used in variable frequency power sources.speed applications using variable frequency power sources.
• Rotor construction • Rotor construction Heavy-duty rotor construction is Heavy-duty rotor construction is designed for adequate torque, high designed for adequate torque, high thermal capacity, mechanical rigidity, thermal capacity, mechanical rigidity, low noise level, and smooth operation. low noise level, and smooth operation. Ventilated rotor construction provides Ventilated rotor construction provides even cooling for improved thermal even cooling for improved thermal stability. The assembled rotor is stability. The assembled rotor is accurately machined and dynamically accurately machined and dynamically balanced at rated speed to achieve balanced at rated speed to achieve lowest levels of residual unbalance. lowest levels of residual unbalance. • Rotor cage bars • Rotor cage bars copper alloy cage bars The oxygen-free The oxygen-free alloy cage are silver brazedcopper into special milledbars are silver brazed intocircular specialend milled pocket joints in the rings. pocket the circular rings. The endjoints ring in joints provide end greater The end and ring locking joints provide greater contact than other methods contact and locking thanwhich other methods of attaching end rings, of attaching end rings, the which significantly prolongs life of the significantly prolongs the life of the rotor. Each joint is ultrasonically-tested rotor. Eachcage joint integrity. is ultrasonically-tested to ensure to ensure cage integrity. • Rotor laminations Low loss, non-segmental rotor • Rotor laminations laminations are tightly anchored to the Low loss, non-segmental rotor shaft. Each lamination is individually laminations are tightly anchored to the insulated to minimize stray losses. shaft. Each lamination is individually to minimize stray losses. • insulated Rotor shaft The shaft will be forged steel, accurately • Rotor shaftand smoothly finished where machined The shaft will be forged steel, accurately required. machined and smoothly finished where required.
WARRANTY
• Meets• rigorous vibrationvibration requirements of API 541 Meets rigorous requirements standards to provide dependable operation. of API 541 standards to provide dependable operation.
• Stator construction Stator The stator is composed of a supporting Stator construction • structure, a core of electrical laminations Theinsulated stator is composed of a grade supporting and windings. High Robust bearing a bracket with all welded construction. structure, core of electrical laminations silicon steel laminations that build up and insulated windings. High the core are precision punched grade from silicon steelsheets. laminations that build Stator core-plated Pressed and heldup the core are precision punched from •between end plates, these laminations Stator construction core-plated sheets. Pressed and held are stacked the support and The statorend isincomposed of astructure supporting between plates, these laminations spaced for radial ventilation to ensure structure, a core of electrical laminations are stacked in the support structure and even throughout andcooling insulated windings. the Highcore. gradeThe spaced for radial ventilation to ensure frame is steel welded and machined to up silicon laminations that build even cooling throughout the the core are precision punched from The withstand stresses exerted by core. electrical frame is welded andPressed machined toand core-plated sheets. held and mechanical forces in theand core withstand stresses exerted by electrical between plates, these provide lowend vibration levels.laminations and in the core and and are mechanical stacked in theforces support structure provide low vibration levels. spaced for radial ventilation to ensure • Stator winding insulation
2-pole induction rotor with axial air ventilation.
Industry standards
• The stiff shaft rotor has 5-8 times stiffer Electric Machinery EM the manufactures capable of passing water immersion • construction The stiff shaftthan rotor has 5-8shaft timesrotor. stiffer a flexible synchronous motorsby to NEMA meet allMG current test as specified 1 and construction a flexible shaft rotor. This extremelythan rugged construction industry standards including NEMA MG 1,isIEEE provides IEEE 112. Abrasion-resistant coating This extremely rugged construction high dependability. 115, IEC 60034/60079, API 546, and ISO available for protection in demanding provides high dependability. Placement of rotor bars in milled end ring pockets 2-pole induction rotor with axial air ventilation. enhance reliability. standards. Third party 9001:2000 environments. • Stator frame is much heavier than • Stator frame is much heavier than CENELEC/ATEX approval or CSA labeling is standard motor frames. standard motor frames. capable ofupon passing the water immersion • The stiff shaft rotor has 5-8 times stiffer available request. Enclosures test as specified by NEMA MG 1 and construction than ainduction flexible shaft rotor. • Stiff Stiffshaft shaft induction motors usedinin motors used Typical motor enclosures include DPG IEEE 112. Abrasion-resistant coating is This extremely rugged construction variable speed speed applications applicationsfrom fromzero zerototo variable Enclosure (IC01/IP22), WP I (IC01/IPW23), WP II available for protection in demanding provides high dependability. operatingspeed speedwill willnot notpass pass maximum operating Typical motor enclosures are WP II (IC01/ (IC01/IPW24), TEFV (IC31/37/IP44), TEWAC environments. through thefirst firstcritical critical speed. is much heavier thanspeed. through the IP24), TEFV (IC37/IP44), TEWAC (IC817/ • Stator frame (IC817/IP54), and TEAAC (IC611/616/IP54). standard motor frames. IP54), and TEAAC (IC611 or IC616/IP54). Enclosures • Critical speed problems encountered in • Critical speed problems encountered in Advantages over Flexible • Stiff shaft induction motors in typical designs areused avoided. Typical motor enclosures include DPG typical designs are avoided. variable speed applications from zero to Advantages over Flexible (IC01/IP22), WP I (IC01/IPW23), WP II
Shaft Induction Motors
maximum operating speed will not pass (IC01/IPW24), TEFV (IC31/37/IP44), Shaft Motors • Stiff Induction shaft machines improveTEWAC reliability through the first critical speed. (IC817/IP54), and TEAAC (IC611/616/IP54). • Stiff shaft machines improve reliability
by eliminating magnification of even cooling throughout the core. The by eliminating magnification of unbalance in the operating range. The • Critical speed problems encountered in • The Duraguard™ insulation system is a Stator Advantages over Flexiblerange. frame winding is weldedinsulation and machined to typical designs are avoided. unbalance in the operating The stiff shaft machine can handle greater vacuum pressure epoxy-mica The Duraguard™ insulation is a Shaft withstand stressesimpregnated exerted by system electrical Induction Motors stiff shaft machine can handle greater amounts of unbalance due to the fact insulation systemforces that provides vacuum pressure impregnated and mechanical in the coreepoxyand • Stiff shaftthe machines improve reliability amounts of unbalance due to above the fact that response peaks are Class F thermal capability, outstanding mica insulation system that provides provide low vibration levels. by eliminating magnification of above that the response peaks are Converteam Electric Machinery operating speed. dielectric properties, superioroutstanding moisture Class F thermal capability, unbalance in the operating range. The • Stator winding insulation operating speed. 800 Central Avenue NE and chemical resistance and the superb dielectric properties, superior moisture stiff shaft machine can handlerotor greater • The stiff shaft induction has a The Duraguard™ insulation system is a Minneapolis, Minnesota 55413 mechanical integrity of an epoxy resin and chemical resistance and the superb amounts of length unbalance to the fact vacuum pressure impregnated epoxyshorter anddue larger diameter to • The stiff shaft induction rotor has a United States system. It is a sealed insulation system mechanical integrity an epoxy resin thatprovide the response peaksbelow are above mica insulation systemofthat provides operation the first lateral shorter length and larger diameter to Tel: +1 612 378 8000 Converteam Electric Machinery capable of passing the water immersion operating speed. system. It is a sealed insulation system Class F thermal capability, outstanding critical speed. provide operation below the first lateral Fax: +1 612 378 8051 800 Central Avenue NE test as specified by NEMA MG 1 and dielectric properties, superior moisture • The stiff shaft induction rotor has a critical speed. Minneapolis, Minnesota 55413 Typical IEEE Abrasion-resistant coating is and115. chemical resistance and the superb Shaft Vibration during Shop Coastdown shorter length and largerTest diameter to UnitedNorth States America Headquarters: mechanical integrity of in andemanding epoxy resin available for protection provide operation below the first lateral 4 Tel: +1 612 378 8000 Inc. Converteam system. It is a sealed insulation system environments. critical speed.
WARRANTY OVERSPEED
OVERSPEED
3 1.5 MILS unFILTEREd API 541 Limit
OPERATING
4
2 1
Fax: +1Pittsburgh, 612 378 8051 Pennsylvania
Shaft Vibration during Shop Coastdown Test
OPERATING
MILS PEAK-PEAK
MILS PEAK-PEAK
3 Typical
Electric Machinery
Tel: +1 412 967 0675
800 Central Avenue NE North America Headquarters: Converteam Inc. Minneapolis, Minnesota 55413 France Tel: +33 1 77 31 20 00 Pittsburgh, Pennsylvania United States Tel: +49 30 76 22 0 Tel: +1 Germany 412 967 0675 Tel: +1 612 378 8000 UK
Tel: +44 1788 563563
Fax: +1 612 378 8051
France Brazil Tel: +33 1Tel: 77 +55 31 2031 003330 5800 EM Results With 4X www.electricmachinery.com Germany 22905 0 333 3667 Canada Tel: +49 30 Tel:76+1 1.5 MILSAllowable unFILTEREd API 541 LimitAdded unbalance UK Tel: +44 1788 563563 China Tel: +86 21 6442 1666 01 Brazil India Tel: +55 31 3330 Tel: +915800 44 2440 0900 0 500 EM Results 1500 With 2000 2500 3000 3500 4000 4500 4X CanadaRussia Tel: +1 905 Allowable unbalance Added Tel:333 +73667 495 225 1916 RPM China Tel: +86 21 6442 1666 0 www.converteam.com India Tel: +91 44 2440 0900 0 500 1500 2000 2500 3000 3500 4000 4500 Russia Tel: +7 495 225 1916 RPM 2
www.converteam.com
© Electric Machinery 2011. Publication NA.10056.gb.01-11.01. Electric Machinery, the Electric Machinery logo and any version thereof are trademarks and service marks of Electric Machinery. The other names mentioned, registered or not, are the property of their respective companies.
© Converteam 2011. Publication NA.10056.gb.01-11.01. Converteam, the Converteam logo and any version thereof are trademarks and service marks of Converteam. The other names mentioned, registered or not, are the property of their respective companies.
Stator
Placement of rotor bars in milled end ring pockets enhance reliability.
© Converteam 2011. Publication NA.10056.gb.01-11.01. Converteam, the Converteam logo and any version thereof are trademarks and service marks of Converteam. The other names mentioned, registered or not, are the property of their respective companies.
Robust bearing bracket with all welded construction.
