Basic Motor Technology - RS Components …

1 ABB Motors1 Basic MotorTechnologyABB Motors2 ABB MotorsBasic Motor Technologyfor ABB Motors' totally enclosed, fan cooled, three-phase squirrel cage catalogue includes Basic technical informationabout the electrical and mechanical design of standardmotors. General specifications stated in theinternational standards for electrical machines are Motors reserves the right to change the design,technical specification and dimensions, without about the electrical and mechanical designof Ex-motors, open drip proof motors IP 23, slip-ringmotors, brake motors, single-phase motors and otherspecial motors can be found in respective productcatalogues. The contact information for obtainingcatalogues and brochures is on the back Motors3 Contents:Page:StandardsGeneral4 Degree of protection5 Cooling5 Mounting arrangements5D-end and N-end7 Direction of rotation7 Dimensions and power standards7 Insulation and insulation classes8 Terminal markings8 Symbols and units10 Characteristics and tolerances10 Typical Motor current and torque curves12 Electrical designStarting of motors13 Example of starting performance with differentload torques14 Torque of voltage deviation15 Permitted starting time15 Permitted frequency of starting andreversing16 Soft starters17 Permitted output in high ambienttemperatures or at high altitudes17 Motors for 60 Hz operation18 Duty types19 Efficiency and power factor22 Power factor cos at start23 Inspection and testing23 Frequency converter drives24 Mechanical designProtection against corrosion27 Drain holes27 Stator winding27 Rotor winding27 Terminal box27 Bearings28 Transport locking28 Lubrication28 Bearing life28 Permissible bearing and shaft loads28

2 Balancing28 Noise levels29 Addition of sound sources29 ABB Motors product range30 ABB Motors presentation314 ABB MotorsTitleIECDINVDECENELECG eneral specifications forIEC 34-1 DIN VDE 0530 pt. 1-electrical machinesInsulating materialsIEC 85 DIN VDE 0530 pt. 1-Designations of terminals and senseIEC 34-8 DIN VDE 0530 pt. 8-of rotation of electrical machinesBuilt-in thermal protectionIEC 34-11---Starting characteristics of threeIEC 34-12 DIN VDE 0530 pt. 12-phase squirrel cage motorsat 50 Hz up to 660 VDimensions and output series for rotatingIEC 72-1--HD 231electrical machines1)Dimensions and correlation of output-DIN 42673 pt. 2--ratings, mounting arrangements IM B3 Envelope dimensions for mounting-DIN 42673 pt. 4--arrangements IM B3 Dimensions and correlation of output-DIN 42677 pt. 2--ratings, mounting arrangements IM B5 Classification of degrees of protection pro-IEC 34-5 DIN VDE 0530 pt. 5-vided by enclosures of rotating machinesSymbols for types of construction andIEC DIN 34 pt.

3 7--mounting arrangements of rotatingelectrical machinesMounting flanges for electrical machinery-DIN 42948--True running of the shaft ends, con--DIN 42955--centricity and true axial running of themounting flanges of rotating electricalmachinesCylindric shaft ends for electricalIEC 72-1 DIN 748 pt. 3--machinesMethods of cooling (IC code)IEC DIN 34-6--Mechanical vibration of certain machinesIEC 34-14 DIN ISO 2373--with shaft height 56 mm and , evaluation and limits ofthe vibration limits for rotating electricalIEC 34-9 DIN VDE 0530 pt. 9-machinesRules for electric equipment for-DIN -EN 50019 /VDE 0171 pt. 6-hazardous areasDIN-en 50014/VDE 0171 pt. 1 StandardsGeneralABB motors are of the totally enclosed, three phasesquirrel cage type complying with International IEC-stan-dards, CENELEC, relevant VDE-regulations and DIN-standards. Motors are also available conforming to othernational and international ABB Motors European production units are certifiedaccording to ISO 9001, an international quality Motors conform to the applicable EEC )The fixing dimensions of ABB Motors product conform to international standards and tolerances with the exception of flange perpendicularity inmachines with aluminium Motors5 Mounting arrangementsMounting arrangements are according to IEC of designations according to Code II*Designation forInternational MountingType of construction, foot-mounted Motor , with twobearing end shieldsMounting arrangement, horizontalmounting, with feet downwards, shaft extension,one cylindrical shaft extension, 34-7 specifies two ways of stating how a Motor ismounted.

4 *Code I covers only motors with bearing end shields andone shaft extension.*Code II is a general table on page 6 includes the designations for the mostcommonly encountered mounting arrangements, accor-ding to the two addition to these designations, the designation occurs. This indicates that the Motor shall operate inall mounting positions, according to IM ..0. to IM .. totally enclosed fan cooled motors are frame surfacecooled by means of an external fan; the method of coolingbeing IC 411 as defined in IEC of protectionThe standard degree of enclosure protection for ABBtotally enclosed motors, according to IEC 34-5, DIN 40050,is IP degrees of protection, IP 56, are available forsome types on MotorsFoot-mounted Motor :Code I:Code II:Code I:Code II:Flange-mounted flange withclearance fixing B 3IM V 5IM V 6IM B 6IM B 7IM B 8IM 1001IM 1011IM 1031IM 1051IM 1061IM 1071IM B 5IM V 1IM V 3*)*)*)IM 3001IM 3011IM 3031(IM 3051)(IM 3061)(IM 3071)Code I:Code II:Flange-mounted flange withtapped fixing B 14IM V 18IM V 19*)*)*)IM 3601IM 3611IM 3631(IM 3651)(IM 3661)(IM 3671)IM B 35IM V 15IM V 36IM 2001IM 2011IM 2031IM 2051IM 2061IM 2071 Code I:Code II:Modified versionsFoot- and flange-mounted Motor :with feet, large flange,clearance fixing B 34IM 2101IM 2111IM 2131IM 2151IM 2161IM 2171 Code I:Code II:Foot- and flange-mounted Motor .

5 With feet, small flange,tapped fixing 1002IM 1012IM 1032IM 1052IM 1062IM 1072 Code I:Code II:Foot-mounted Motor :shaft with freeextensions.*) Not stated in IEC Motors7D-end and N-endAccording to IEC 34-7, the ends of a Motor are defined asfollows: D-end: the end that is normally the drive end of themotor. N-end: the end that is normally the non-drive endof the of rotationThe cooling of the motors is independent of the directionof rotation, with the exception of some larger the mains supply is connected to the stator terminals,which are marked U, V and W, of a three phase Motor andthe phase sequence of the mains is L1, L2, L3, the motorwill rotate clockwise, as viewed from the D-end. To reversethe direction of rotation, interchange any two of the threeconductors connected to the starter switch or or or or or or or or or or or or or or - - 22-303745557590 MotorShaft extensionRated outputFlange numbersizediameter24,6,82468freethreaded polespolespolespolespolespolesholesholes mmmmkWkWkWkWDimensions and power standardsCENELEC harmonisation document, HD 231, lays downdata for rated output and mounting, shaft height, fixingdimensions and shaft extension dimensions, for various( )( )

6 Or - S90 L100 L112 M132 S132 M160 M160 L180 M180 L200 L225 S225 M250 M280 S280 M315 S315 M911141924242828383842424848555555606565 6565911141924242828383842424848556060657 5758080FF215FF350FF500degrees of protection and covers totally enclosed squirrel cage motors at 50 Hz, inframe sizes 56 to 315 or FT85FT75 or FT100FT85 or F115FT100 or FT130FT115 or FT130FT130 or FT165FT130 or FT165(FT165 orFT215)FF115FF130FF165FF165FF215(FT215) FF500FF600FF400FF300FF300FF2658 ABB MotorsTerminal markingsInsulation and insulation classesAccording to IEC 85, insulating materials are divided intoinsulation classes. Each class has a designation corres-ponding to the temperature that is the upper limit of therange of application of the insulating material under nor-mal operating winding insulation of a Motor is determined on thebasis of the temperature rise in the Motor and the ambienttemperature. The insulation is normally dimensioned forthe hottest point in the Motor at its normal rated output andat ambient temperature of 40 oC.

7 Motors subjected toambient temperatures above 40 oC will generally have tobe most cases, the standard rated outputs of motors fromABB Motors are based on the temperature rise for insula-tion class B. Where the temperature rise is according toclass F, this is specified in the data , all the motors are designed with class F insula-tion, which permits a higher temperature rise than class motors, therefore, have a generous overload temperature rise to class F is allowed, the outputs givenin the tables can generally be increased by about 12 %.Temperature limits are according to standards. The extrathermal margin when using class F insulation with class Btemperature rise makes the motors more temperature rise1010512518015513012040 CsMaximum ambient temperature40 40 40 Insulation classMaximum winding temperature B F H130 155 180 Hotspot temperature marginConnection of three phase, single speed motorsY-connection -connectionwinding are indicated by a digit after the letter, U1, U2etc.

8 Parts of the same winding are designated by a digitbefore the letter, 1U1, 2U1 etc. If there is no possibilityof confusion, the digit before the letter, or both, may 34-8 lays down that the stator winding, its parts andthe terminals of AC motors, must be designated withletters U, V and W. External neutral terminals aredesignated N. The letters used for the rotor winding are K,L, M and Q. End points and intermediate points of aABB Motors9 /Y connected. Motors with one winding, Dahlander-connection, are connected /YY when they are designedfor constant torque drives. For fan drive the connection connection diagram is supplied with every of two-speed motorsTwo-speed motors are normally connected as shownbelow; direction of rotation as shown on page 7. Motors ofnormal design have six terminals and one earth terminalin the terminal box. Motors with two separate windings arenormally / -connected.

9 They can also be Y/Y, Y/ orLow speedHigh speedLow speedHigh speedLow speedHigh speedLow speedHigh speedLow speedHigh speedLow speedHigh speedLow speedHigh speedLow speedHigh speed1. Two separatatewindings Y/Y3. Dahlander-connection /YY2. Two separatewindings /4. Dahlander-connection Y/YYConstant torque driveFan drive10 ABB MotorsQuantityUnitsRelationship withinCorrelation betweenthe new SI-systemthe old and newNameSymbolsystem of unitsPower PW1 W = 1 J/s =1 ps = 735,5 W =1 Nm/s = 1 VA75 kpm/s1 hp = 746 WVoltageUVCurrentIAResistanceR FrequencyfHz1 Hz = 1/sSpeednr/minMassmg1 kg = 1000 gkg1 t = 1000 kgMoment ofinertia,Jkgm2J = 1/4 WR2(old flywheeleffect WR2)EnergyEJ1 J = 1 Nm = 1 WsForceFN1 N = 1 kgm/s21 kp = 9,81 N 10 NTorqueTNm1 Nm = 1 kgm2/s21 kpm = 9,81 NmTemperaturetoCDifference in TKtemperatureSymbols and unitsCharacteristics and tolerancesThe following tolerances apply to product catalogue tablevalues, as stated in IEC 34-1 ( in reference to guaranteedvalues).

10 Power factorThe power factor is determined by measuring the inputpower, voltage and current at the rated output. The tablevalues are subject to a standard tolerance of 1/6 (1-cos ) Minimum Maximum factors for table data:1 kW = hp1 Nm = kpmJ= 1/4 GD2 kgm2 ABB Motors11 Speed, slipThe speed of motors applies at the rated output andoperating temperature. The standard tolerance on the slipis 20 % of the guaranteed slip. With regard to overspeed,the normal testing speed is 120 % of rated speed for slip is defined by the formula:At part load the slip varies approximately in proportion tothe and frequencyThe table values for output, speed, efficiency, powerfactor, starting torque and starting current apply at therated voltage and frequency. These values will be affectedif the supply voltage or frequency deviate from the motors can operate continuously at the rated output,with a long-term voltage deviation of 5 % from the speci-fied value or range of values, and at the rated temperature rise may increase by 10 K.