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Инструкция обслуживания Emerson LARGE AC ELECTRIC MOTORS

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Summary
  • Emerson LARGE AC ELECTRIC MOTORS - page 1

    TIT AN II LAR GE A C ELE C TRIC MOT ORS ©Emerson Motor Company , 2002; All Rights Reserved ©Emerson Motor Company , 2002; All Rights Reserved IN234-204B Rev . 10/02 HORIZ ONT AL MOT ORS WITH ANTI-FRIC TION BE ARINGS INST ALLA TION, OP ERA TION AND MAINTENANCE MANU AL P/N 986269 Emerson Motors 8100 W est Florissant Av e . S t. L ouis, MO 63136 Pho ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 2

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  • Emerson LARGE AC ELECTRIC MOTORS - page 3

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE SAFETY FIRST High voltage and rotating parts can cause serious injury or loss of life. Safe installation, operation and maintenance must be performed by qualified personnel. Familiarization with and adherence to NEMA MG2, the National Electrical Code, and local codes is recommended. It is importan ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 4

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE SECTION PAGE SAFETY ........................................................................................................................................................ i I . SHIPMENT .............................................................................................................. ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 5

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  • Emerson LARGE AC ELECTRIC MOTORS - page 6

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE FIGURE 1B Typical Construction With Four Lifting Lugs FIGURE 1A Typical Construction With Two Eyebolts Shipment & Handling I. SHIPMENT Prior to shipment, all Titan-II Motors undergo extensive electrical and mechanical testing, and are thoroughly inspected. Upon receipt of the motor, carefully ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 7

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE III. STORAGE 1. When to put a Motor in Storage. If a motor is not put into immediate service (one month or less), or if it is taken out of service for a prolonged period, special storage precautions should be taken to prevent damage. The following schedule is recommended as a guide to determine st ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 8

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE (H) All motors must have the shaft rotated a few turns once a month to maintain a lubricant film on bearing races. 3. Periodic Maintenance/ Insulation History The only accurate way to evaluate the condition of the winding insulation is to maintain a history of the insulation readings. Over a perio ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 9

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE ( C ) Insulation resistance readings must not drop below the value indicated by the following formula: Rm = Kv + 1 Rm = minimum insulation, in megohms, at 40°C Kv = rated motor voltage in kilovolts ( D ) Dielectric Absorption Ratio: In addition to the individual test reading, a dielectric absorpt ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 10

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE IV. INSTALLATION LOCATION When selecting a location for the motor and driven unit, keep the following items in mind: 1. The location should be clean, dry, well ventilated, properly drained, and provide accessibility for inspection, lubrication, and maintenance. Ambient vibration should be kept to ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 11

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE VI. INITIAL INSTALLATION 1. Coupling or Pulley Installation Remove the shaft locking device shipped on motor (as applicable). Wash protective coating from the motor shaft extension(s) with solvent. Install couplings or pulleys on motor shaft per manufacturers' recommended fit and mounting pra ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 12

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE B . Parallel Alignment (See Figure 3B) Fasten a dial indicator onto one coupling hub with the indicator button on the cylindrical surface of the opposite coupling hub. Rotate shafts together and take readings at four points, 90° apart. Relocate motor until total indicator movement in full rotatio ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 13

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE 5. Reversing Rotation The direction of rotation may be reversed by interchanging any two, of the three power phases to the motor leads. Be sure that the power is off and steps are taken to prevent accidental starting of the motor before attempting to change any electrical connections. CAUTION Some ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 14

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Normal Operation 9 I . When checks are satisfactory to this point, increase the load slowly up to rated load and check unit for satisfactory operation. 7. Vibration Motors are supplied as standard in accordance with NEMA MG-1, section 7, which dictates that motor no-load vibration when mounted on ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 15

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE 2. Inspection & Cleaning Stop the motor before cleaning. ( CAUTION : See section on safety, page i). Clean the motor, inside and outside, regularly. The frequency depends upon actual conditions existing around the motor. Use the following procedures, as they apply: A . Wipe any contaminants fr ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 16

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE IX. DISASSEMBLY See Figure 4 for Bearing Housing Cross Section. A . Disconnect power. Refer to section on Safety, page i. B . Remove grills and/or weather protected tophat as required. C. Remove bearing cap screws. D. Remove bearing temperature detector probes from brackets as applicable. E . Remo ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 17

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE E . Reassemble motor by reversing the disassembly procedure in Section IX “Disassembly” . Bearings should be installed per bearing manufacturer's recommended procedure. Pack bearings with grease per Section XI "Lubrication" . F. Torque bolts per values in Table 4. G. Touch up an ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 18

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Lubrication 13 Titan II motors are provided as standard with polyurea-based, NLGI Number 2 grease which is interchangeable with any of the following recommended greases: TABLE 3 Emerson Motor Co. Approved Greases For Titan II Motors with Antifriction Bearings MANUFACTURER DESCRIPTION U.S. ELECTRIC ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 19

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE XII. RENEWAL PARTS AND SERVICE Parts lists for specific units can be furnished upon request. Parts may be obtained from local U.S. Motors distributors and authorized service shops, or via the U.S. Motors Distribution Center: EMERSON MOTOR CO DISTRIBUTION CENTER 3363 MIAC COVE MEMPHIS, TN 38118 PHO ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 20

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Cutaway Drawings 15 XIII. CUTAWAY DRAWINGS 14 11 15 13 12 14 1 4 3 5 7 8 10 2 9 6 1. Stator 2 . Rotor 3. Shaft 4. Stator Coils 5 . Bearing 6. Bearing Bracket 7. Bearing Cap 8. Grease Drain Plug 9. Air Deflector 10 . Shaft Seal Slinger 11 . Stator Housing (Frame) 12 . Ventilation Baffles 13 . Termi ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 21

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE CORRECTION Check source of power supply. See Safety instructions! Check overloads, controls and fuses. Check voltage, compare with nameplate voltage. Disconnect motor from load to verify if motor starts without load. Reduce load-or replace motor with motor of greater load capacity. Check input vol ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 22

    U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE TROUBLE Motor overheating (Check with thermocouple or by resistance methods - do not depend on hand) Troubleshooting CORRECTION Measure load; compare with nameplate rating; check for excessive friction in motor or complete drive. Reduce load or replace motor with greater capacity motor. Clean moto ...

  • Emerson LARGE AC ELECTRIC MOTORS - page 23

    XV. INSTALLATION RECORD NAMEPLATE ID # CUSTOMER ID # FRAME TYPE HORSEPOWER RPM VOLTAGE PHASE FREQUENCY AMPS DESIGN CODE DATE OF PURCHASE DATE INSTALLED PURCHASED FROM LOCATION OF MOTOR INSTALLATION # DRIVE END BEARING # OPPOSITE END BEARING # MOTOR RESISTANCE LINE TO LINE AT TIME OF INSTALLATION INSULATION TO GROUND READING AT TIME OF INSTALLATION ...

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