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Siemens & WPII Enclosures Types CG manual

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  • Page 1

    A N I M -0 3 520- 0110 (New Issue) © 2010 Si e m ens Industry , I n c. A l l rights r e se r v ed. Installation Operation Maintenance Horizontal - Medallion  500, 580, 680, 800, 1120 Frames ODP, WPI, & WPII Enclosures Types CG, NCG, CGII, NCGII Induction Motors/ Generators[...]

  • Page 2

    - 1 - Table of Contents Page Page TABLE OF CONTENTS 1 OPERATION 10 SAFETY PROCEDURES 2 Initial Start 10 INTRODUCTION 3 Oil Circulating Systems 10 Warranty 3 Normal Operation 10 Receiving 3 Voltage/Frequency Variation 10 Handling 4 Trouble Shooting 11 Temporary Storage 4 MAINTENANC E 13 Type Designations 4 Preventive Maintenance 13 Ventilation 4 Ins[...]

  • Page 3

    - 2 - Safety Procedures This equipment contains haza rdous voltages. Death, serious personal inju ry or property damage can resu lt if safety instructions are not followed. The successful and safe ope ration of motors and generators is depend ent upon proper handling, installation, operation and mainte nance, as well as upon proper design and manuf[...]

  • Page 4

    - 3 - Introduction DANGER Hazardous voltage. Will cause death, serious injury, electrocution or property damage. Disconnect all power before working on this equipment. These instructions present general recom mendations for installation, operation and maintenance of inducti on motors built at the Nor wood plant. If additional information is req u i[...]

  • Page 5

    - 4 - Introduction Handling Lifting devices are pr ovided for handling only. An experienced rigger shoul d be used to install motors. To avoid dama ge, the use of sprea der bars is recomm ended on other than single point lifts. Lifting devic es are provided to facilitate handling with shackles and c ables. Avoid poundi ng or bumping shaft, coupling[...]

  • Page 6

    - 5 - Installation Motor Dimensions For motors built in the frame size s covered by this manual, the letter dim ensions have the same definitions as established NEMA standards. Established dimensions for these frames may be found on catalog sheets or certified dra wings. CAUTION Damp Location. Can cause propert y damage if equipment is oper ated in[...]

  • Page 7

    - 6 - Installation External Wiring DANGER Hazardous voltage. Will cause death, serious injur y, electrocution or propert y damage. Disconnect all power before workin g on this equipment. NOTE Before runnin g motor, see Initial Start. Starting and overload control devi ces must be matched to motor rating. For safety or convenience they may need to b[...]

  • Page 8

    - 7 - Installation Angular Alignment Hold each shaft at maximu m end float. Rotate both shafts together, and measure b etween matching points at the outside diameter of the coupli ng faces for the top, bottom and both sides. Use two indicat ors because of possible axial shaft movement. Read difference of variation between them. Align shafts so that[...]

  • Page 9

    - 8 - Installation Check for vertical alignm ent (parallelism) of coupl ed drive as follows: 1. Operate unit until normal temperature is reached (may require several hours). 2. Shut down motor and lock out swit ch. 3. Mount dial indicator as in Figure 2. 4. Rotate shaft, noting re adings at 0°, 90°, 180°, and 270° (both sides, top, and bottom).[...]

  • Page 10

    - 9 - Installation Typical Motor Control Settings Alarm Trip (Shutdown) Timer Trip Setting (1) Winding Temperature • Class B Insulation • Class F Insulation 130°C 155°C 155°C 170°C Motor Bearing Temperature (Thermocouple or RTD’s) • Sleeve Bearing 100 °C 105 °C • Antifriction Bearing 100°C 105°C Ground Fault 4 Amps (2) Primary Cir[...]

  • Page 11

    - 10 - Operation Initial Start CAUTION Do not exceed nu mber of Siemens specified h ot and cold starts per hour. Will cause overheating. Allow time between starts to permit stator windings and rotor cage to cool. After installation is completed, but before motor is pu t in regular service, make an initial start as follows: 1. Check that motor, star[...]

  • Page 12

    - 11 - Operation Trouble Shooting Between regular maintenance inspe ctions, be alert for signs of motor trouble. Comm on symptoms are listed in the following table. Correct any trouble immediately an d AVOID COSTLY REPAIR AND SHUT DOWN. TROUBLE POSSIBLE CAUSES CORRECTION Usually line trouble. Singl e phasing at starter. Check power source. DO NOT c[...]

  • Page 13

    - 12 - Operation Trouble Shooting TROUBLE POSSIBLE CAUSES CORRECTION Open stator windings. Disconnect motor from load. Check idle amps for balance in all three phases. Check stator resistance in all three phases for bala nce. Air Recirculation. Check air intake and exhaust for obstructions. Check air inlet temperature. Over voltage/under voltage. C[...]

  • Page 14

    - 13 - Maintenance Preventive Maintenance Motors are designed to give many years of reliable service with a minimum of attention. Trouble-free operation cannot be expected if p roper maintenance is postponed or neglecte d. Provide proper maintenance on the equipment . Follow carefully the instructions co ntained herein. Be certain personnel review [...]

  • Page 15

    - 14 - Maintenance Sleeve Bearing – 500, 580, 680, 800 Frames Access to the motor int erior can be gaine d by removal of the upper half of the horizontally split bearing bracket. 1. Remove the parting bolts at the horizontal split. 2. Remove the bolts at the outer circumference of the upper half of the split-bearing bracke t. 3. Pull the upper br[...]

  • Page 16

    - 15 - Maintenance Vibration Most problems can b e detected when insp ected visually. Check for; 1. Loose or missing parts, such as fan blades, nut s, bolts, screws, couplings, etc. 2. Accumulation of dirt on fan or rotor. 3. Associated e quipment - Disconn ect equipment to determine where the vibration is being generated. 4. Foundation constructio[...]

  • Page 17

    - 16 - Maintenance Insulation Resistance Check insulati on resistance periodically . Use a hand cranked or solid state in sulation resistance te ster and test with at least 500 volts, but not greater than motor rated voltage. For motors with newer i nsulation syst ems such as MICLAD™ VPI, the insulation resistance after one minute should be great[...]

  • Page 18

    - 17 - Maintenance When this method is use d on the stator, the stato r phases may be connecte d in series or in parallel to suit the available power su p ply if both ends of all phases are accessi ble. If only three leads are brought out of the motor, the current may be circulated between one terminal and the other two connected together. If this [...]

  • Page 19

    - 18 - Maintenance Insulated Bearings One or both bearings m ay be insulated to preven t shaft currents from pitting bearing surfaces. The insulation is located at the joint between the bearing housing or bracket a nd the bearing. Insulated bearings are designated by an instruction plate on the bearing housing. Check periodically to be sure the ins[...]

  • Page 20

    - 19 - Maintenance At the first sign of oil discoloration or contamination, replace with new oil. Rapi d discoloration is caused by bearing wear, often from vibration or thrust. Chang e oil as required to keep clean. When assembling the bea ring, it is possible to foul the rings so that they will not turn freely. Check ring operation by rotating sh[...]

  • Page 21

    - 20 - Maintenance Sealing Parts Even though joints may seem to match perfectly, minute clearances exist through which oi l may leak. . Apply sealant as follows: 1. Surfaces sha ll be clean of dirt, grease, and oil sealant. Use a non-oil base solvent if neces sary. 2. The mating surfaces should be flat with no nicks raised above the surface. The re[...]

  • Page 22

    - 21 - Maintenance Sleeve Bearings CAUTION Maintain proper oil lev el. Failure to do so may cause improper lubric ation of motor resulting in damage to the equipm ent. Follow lubrication instructions carefully. Avoid adding oil while unit is running. Motors with sleeve bearings are shipped without oil. A rust-inhibiting film is applied at the facto[...]

  • Page 23

    - 22 - Maintenance Bearing Replacement Antifriction Bearings For typical antifriction bea ri ng configuration, see Figure 3. Replacement bearings may be of a different manufacturer but must be equal t o the originals used i n the motor. When ordering bearings spe cify as follows: 1. The complete A.F.B.M.A. (Anti-Friction Bearing Manufacturers’ As[...]

  • Page 24

    - 23 - Maintenance Sleeve Bearing When replacing sleeve b earings, it is always desi rable to check the fit (contact pattern) of the bearing to the shaft. When ordering sleeve bearings, be sure to provide complete motor nameplate and beari ng data. If bearing is insulated, be su re to replace it with anothe r insulated bearing. Whenever a bearing i[...]

  • Page 25

    - 24 - Maintenance Sleeve Bearing 1120 Frame (See Figure 7) 1. Check re placement bearin gs for nicks or shippi ng damage. Do not scrape. 2. Carefully rem ove the bearing hou sing cap by first lifting straight up, then pulling away from the bearing area. 3. Remove top half of bearing liner. 4. Remove the bolts at the split line of the oil ring, dis[...]

  • Page 26

    - 25 - Spare Parts Identification All units have an identification nam eplate affixed to the frame (Figure 8). All the necessary information pertaining to the motor can be found on this plate including; 1. Serial Number 2. Type and Frame Size 3. Horsepower and Speed 4. Bearing Designations It is important when ordering spa re parts or discussing se[...]

  • Page 27

    - 26 - Spare Parts Figure 9. Type CG & NCG, 500 Frame Aluminum die cast rotor 1 2 3 4 13 12 6 7 8 5 10 14 15 9 11 12 Copper bar rotor 1 10 12 13 Item Description Item Description 1 Stator Core 9 End Cover 2 Stator Yoke 10 Rotor Core 3 Stator Coils 11 Insulating Adapter 4 Bearing Housing 12 Internal Fan 5 Rotor Shaft 13 Air Deflector 6 Inner End[...]

  • Page 28

    - 27 - Spare Parts Figure 10. Type CGII & NCGII, 500 Frame Aluminum die cast rotor 15 14 1 2 13 3 12 4 6 7 8 5 10 12 11 9 Copper bar rotor 1 10 12 13 Item Description Item Description 1 Stator Core 9 End Cover 2 Stator Yoke 10 Rotor Core 3 Stator Coils 11 Insulating Adapter 4 Bearing Housing 12 Internal Fan 5 Rotor Shaft 13 Air Deflector 6 Inne[...]

  • Page 29

    - 28 - Spare Parts Figure 11. 500 Frame Sleeve Bearings 1 2 3 4 5 6 7 3 8 9 Drive End Opposite Drive End Item Description 1 Bearing Housing 2 Bearing Bushing 3 Oil Seal 4 Oil Ring 5 Air Seal 6 Shims 7 Oil Sight Glass 8 Rotor Shaft 9 End Cover[...]

  • Page 30

    - 29 - Spare Parts Figure 12. Types CG & CGII, 580 Frame 15 1 14 2 4 3 12 12 6 7 8 5 10 13 12 11 9 Copper bar rotor 1 10 12 13 Item Description Item Description 1 Stator Core 9 End Cover 2 Stator Yoke 10 Rotor Core 3 Stator Coils 11 Insulating Adapter 4 Bearing Housing 12 Internal Fan 5 Rotor Shaft 13 Air Deflector 6 Inner End Cap 14 Top Cover [...]

  • Page 31

    - 30 - Spare Parts Figure 13. 580 Frame Sleeve Bearings 1 2 3 4 5 6 7 3 8 9 Drive End Opposite Drive End Item Description 1 Bearing Housing 2 Bearing Bushing 3 Oil Seal 4 Oil Ring 5 Air Seal 6 Shims 7 Oil Sight Glass 8 Rotor Shaft 9 End Cover[...]

  • Page 32

    - 31 - Spare Parts Figure 14. Types CG & CGII, 680 & 800 Frames 16 1 15 2 3 14 13 6 7 9 8 5 11 4 13 14 12 10 Item Description Item Description 1 Stator Core 9 External End Cap 2 Stator Yoke 10 End Cover 3 Stator Coils 11 Rotor Core 4 Bearing Housing 12 Insulating Adapter 5 Rotor Shaft 13 Internal Fan 6 Inner End Cap 14 Air Deflector 7 Ball [...]

  • Page 33

    - 32 - Spare Parts Figure 15. 680 & 800 Frame Sleeve Bearings 1 2 3 4 5 6 7 8 5 9 Drive End Opposite Drive End Item Description 1 Bearing Housing 2 Bearing Bushing 3 External Oil Seal 4 Internal Oil Seal 5 Oil Ring 6 Shims 7 Oil Sight Glass 8 End Cover 9 Rotor Shaft[...]

  • Page 34

    - 33 - Spare Parts Figure 16. Types CG & CGII, 1120 Frame 1 2 3 4 5 6 7 8 9 10 11 12 13 14 8 15 Item Description Item Description 1 Stator Core 9 Bearing Capsule 2 Stator Yoke 10 Oil Ring 3 Stator Coils 11 Rotor Core 4 Bearing Housing 12 Internal Fan 5 Rotor Shaft 13 Air Deflector 6 Machine Seal 14 Top Cover 7 Bearing Liner 15 Filter Access 8 O[...]

  • Page 35

    - 34 - Motor Service Record Serial No ______________________ Horsepower ______________ Type ___________ Speed ________ Volts _____________ Amperes _____________ Hertz _______ Insulation Class _______ Temperature Rise _______ ° C Frame Size ____________ Owner Order No _________________ Item No _____ Date Of Manufacture _________ MACHINE TYPE BEARIN[...]

  • Page 36

    - 35 - Vibration Analysis Sheet Pick-Up Filter-Out Coupled Filter-In Coupled Disp. Freq* Vel. Freq.* Vel. Freq . Vel. Freq. Vel. Freq. Vel. Freq. Point Position Mils CPM In/Sec CPM Mils CPM Mils CPM Mils CPM Mils CPM Horizontal Vertical Axi al Horizontal Vertical Axi al Horizontal Vertical Axi al Horizontal Vertical Axi al Horizontal Vertical Axi a[...]

  • Page 37

    - 36 - Notes ___________________ ______________ ___________________ __________________ _______________ _____ ___________________ ______________ ___________________ __________________ _______________ _____ ___________________ ______________ ___________________ __________________ _______________ _____ ___________________ ______________ ______________[...]

  • Page 38

    A N I M -0 3 520- 0110 (New Issue) © 2010 Si e m ens Industry , I n c. A l l rights r e se r v ed. Siemens Industry Drive Technologies Divis i o n Norwood Motor Plant 4620 Forest Avenue Norwood, OH 45212-3396 (513) 841-31 00[...]