DC motors Sizes 160 to 630 31.5 kW to 1610 kW - Siemens

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Explanations© Siemens AG 20082Motor designThe DC motors up to and including Size 280 are uncompensated.From Size 355, the motors are equipped with a compensationwinding.At constant torque, the forced-cooled motors 1GH, 1GG, 1HQand 1HS can be coasted down to 10 rpm by means of armaturecontrol.Magnetic circuit, rate of change of currentThe motors have a fully laminated magnetic circuit and are thereforesuitable for being fed from converter units. In the case of dynamicprocesses, a rate of change of current up to 250 I N /s ispermissible.RotorsThe laminated rotor packages have chamfered slots to minimizenoise and torque ripple. The rotors are dynamically balanced.Carbon brushes, commutationPractically spark-free commutation when fed from drive convertersis achieved as a result of the optimum motor design, even inthe overload range. This results in extremely long brush lifetimes.Brush wear is essentially dependent on the operating and ambientconditions of the DC motor, so the following conditionsshould apply in order to achieve a long brush lifetime:• Relative air humidity 10 to 50%• Effective load > 50% ⋅ I N• Cooling air temperature > 10 °CFor conditions outside these ranges, information is available onrequest.Critical applications can also be mastered if the appropriatebrush materials are chosen.Supply, converter connection and armature voltageThe rated voltages listed in the selection tables are rated voltagesaccording to DIN 40 030.The rated data assigned to each of these rated voltages is onlyvalid in combination with the specified converter connection andsupply voltage. The inductances specified in the "Selection andordering data" tables are applicable for 300 Hz with three-phasebridge circuits and a line frequency of 50 Hz, which is generallyspecified on the rating plate.Installation and operating conditionsCondensationIf there is a risk of condensation, anti-condensation heating canbe fitted to the motors. Supply voltages of 115 V and 230 V arepermitted.Overload capabilityOverloading of the motors is possible in accordance with the followingtable. In the event of frequent overloading, it is assumedthat the effective load of the motor does not exceed the ratedload.Overload capacity (with reference to P N and n N ) formotors withoutcompensationmotors withcompensationTorque Current Torque CurrentM max /M N I max /I N M max /M N I max /I N15 s 1.6 ~1.85 1.8 ~1.855s 1.8 ~2.2 2.0 ~2.1Operating conditionsThe motors are designed for the following conditions ofoperation:•Site altitude ≤ 1000 m (> 1000 m, see adjacent characteristics)• Cooling air temperature up to 40 °C (> 40 °C, see adjacentcharacteristics)• Cooling air must not contain any foreign bodies or aggressivecomponents• Maximum permissible vibration levels from external sources(see adjacent table).NOutput changes as a function of the site altitude and the coolant supplytemperature for DC motors.nSpeed deviations as a function of the site altitude and the coolant supplytemperature for DC motors.VibrationfrequencyHz120100806040120%%100< 6.3 Vibration displacement smm6.3 – 63 Vibration velocity V rmsmm/sSite altitude1000 m2000 m3000 m4000 m0 10 20 30 40 50 °C 60Coolant supply temperatureSite altitude 4000 m3000 m2000 m1000 m800 10 20 30 40 50 °C 60Coolant supply temperatureVibrationvaluesFrame sizeUp to 355280 andabove≤ 0.1 ≤ 0.16≤ 2.8 ≤ 4.5> 63 Vibration acceleration am/s 2 ≤ 1.6 ≤ 2.55The valuation zones A and B defined in ISO 10816 apply for thepermissible vibration values measured on the end shield. Withincreased vibration values due to operation, special agreementshave to be made (on request).G_DA12_EN_00018G_DA12_EN_000192/2Siemens DA 12 · 2008
© Siemens AG 2008ExplanationsIntermittent dutyThe following increases in output can be assumed with referenceto the rated outputs listed in the "Selection and orderingdata" for separately ventilated motors in S3 mode (intermittentduty):S3 operating modeIncrease in output from P N in S1operating mode–60% 1.15–40% 1.3–25% 1.5DURIGNIT 2000 insulating systemThe high-quality DURIGINIT 2000 insulating system mainly comprisesplastic materials with a high temperature overload capabilityand track resistance. It also meets the requirements placedon motors that are operating in tropical conditions (humid andhot climate).Temperature class 155 (F) (overtemperature limit 105 K atKT 40 °C) is implemented for 1G.5/1H.5 motors. For utilization intemperature class 130 (B), derating of 13% to 87% must be implemented.Temperature class 180 (H) (overtemperature limit 125 K atKT 40 °C) is implemented for 1G.6/1H.6 and 1G.7/1H.7 motors.For utilization in temperature class 155 (F), derating of 8% to92% is necessary (103% speed).Rated outputThe rated output specified in the selection tables is applicablefor S1 continuous duty according to EN 60 034-1 when the motorsare fed from drive converters using the applicable converterconnections and supply voltages specified for the rated armaturevoltages.Direction of rotationThe motors are designed for both clockwise and anti-clockwiserotation or reversing operation. The direction of rotation only hasto be specified for motors of Size 500 and 630.Field control rangeThe motor speed can be increased by field weakening• At constant armature voltage and power as far as the fieldweakening speeds n Fmax specified in the "Selection and orderingdata" tables• Beyond these values, as far as the maximum permissible mechanicallimit speed n mech as specified in the "Selection andordering data" tables with reduced power P red as follows:n *1nP FredPn * N1n Fmaxn* Fictitious reference value with units of speed from the table shownbelown F Required field weakening speed in the range n Fmax < n F ≤ n mechSpeeds n* (fictitious reference values only)Motor Size Speed n*rpm160 14400180 13000200 11700225 10500250 9400280 8300355 6400400 5700450 4950500 4580630 3580In the speed range from n Fmax to n mech , the series inductancesand noise values can increase; further details on request.Speed data on the rating plateIf specified in the order, the field weakening speed will be givenon the rating plate as shown in the following table.DesignStandard designSpecial design in accordancewith the section of the catalog"Selection and ordering" -"Options" for an additionalprice, with short codeC05C06Field weakening speed n Frpm1.15 ⋅ n N maximum n Fmax(see selection tables)1.7 ⋅ n N maximum n Fmax(see selection tables)n Fmax >1.7⋅ n NIf the speeds of the respective motor deviate from those specifiedin the "Selection and ordering data" tables, for example,due to• Speed compensation by means of armature voltage changesand/or field weakening• Additional, permissible field weakening speeds not specifiedfor the standard design (without a short code or for short codesC05 and C06)the short code Y80 "Deviating rating plate data" and informationin plain text must also be specified, see "Selection and ordering"- "Options".Sector-specific applicationsShort codes are specified for the following sector-specificapplications (see "Selection and ordering" - "Options").Paint finishThe standard paint color is anthracite according to RAL 7016.Motors can be supplied with a special paint finish (short codeL53) or with primer only (short code K24).Aggressive gases and vaporsIf chemically aggressive gases and vapors are expected at theinstallation site, additional precautions must be taken with regardto insulation, surface protection and brush types. Pleaseinquire specifying the substance type and concentration.2Siemens DA 12 · 2008 2/3
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DC motors Sizes 160 to 630 31.5 kW to 1610 kW - Siemens

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