Low and high voltage three phase induction …

1 Motors I Automation I Energy I Transmission & Distribution I Coatings Low and high voltage three phase induction motors M line Slip ring rotor - Horizontal Installation, Operation and Maintenance Manual Installation, Operation and Maintenance Manual Document Number: 11171307. Models: MAA, MAP,MAD, MAT, MAV, MAF, MAR, MAI, MAW and MAL. Language: English Revision: 11. February 2017. Dear Customer, Thank you for purchasing a WEG motor . Our products are developed with the highest standards of quality and efficiency which ensures outstanding performance. Since electric motors play a major role in the comfort and well-being of mankind, it must be identified and treated as a driving machine with characteristics that involve specific care, such as proper storage, installation and maintenance All efforts have been made to ensure that the information contained in this manual is faithful to the configurations and applications of the motor .

2 Therefore, we recommend that you read this manual carefully before proceeding with the installation, operation or maintenance of the motor in order to ensure safe and reliable operation of your equipment and facility. If you need any further information, please contact WEG. Always keep this manual close to the motor , so that it can be consulted whenever necessary. ATTENTION. 1. It is imperative to follow the procedures contained in this manual for the warranty to be valid;. 2. The motor installation, operation and maintenance procedures must be performed only by qualified personnel. NOTES. 1. The total or partial reproduction of information supplied in this manual is authorized, provided that reference is made to its source. If this manual is lost, an electronic PDF file is available at or another printed copy may be requested.

3 WEG EQUIPAMENTOS EL TRICOS 11171307 Installation, operation and maintenance manual Slip ring motor M line - Horizontal l 5. TABLE OF CONTENTS. 1 INTRODUCTION .. 11 SAFETY WARNINGS IN THE MANUAL ..11 2 GENERAL INSTRUCTIONS .. 12 QUALIFIED PERSONNEL ..12 SAFETY INSTRUCTIONS ..12 ENVIRONMENTAL CONDITIONS ..13 OPERATING CONDITIONS ..13 voltage AND FREQUENCY ..13 3 RECEIVING, HANDLING AND STORAGE .. 14 RECEIVING ..14 HANDLING ..14 STORAGE ..14 Outdoor storage .. 15 Extended storage .. 15 Storage location .. 15 Indoor storage .. 15 Outdoor storage .. 15 Separate parts .. 16 Preservation during the 16 Space 16 Insulation resistance .. 16 Exposed machined 16 Sealing .. 16 16 Grease-lubricated rolling bearing .. 16 Oil-lubricated rolling bearing.

4 16 Sleeve bearing .. 16 Brushes .. 17 Terminal box .. 17 Air-water heat exchanger .. 17 Cleanliness and conservation of the motor during storage .. 18 Inspections and records during storage .. 18 Predictive/preventive 18 Maintenance plan during storage .. 19 Preparation for commissioning .. 20 Cleaning .. 20 Bearing inspection .. 20 Bearing 20 Brushes, brush holders and slip rings .. 20 Insulation resistance verification .. 20 Air-water heat exchanger .. 20 Others .. 20 4 INSTALLATION .. 21 INSTALLATION SITE ..21 SHAFT LOCK ..21 ROTATION DIRECTION ..21 INSULATION RESISTANCE ..21 Safety Instructions .. 21 General considerations .. 21 Measurement on the stator 21 Measurement on the rotor winding .. 22 Additional Information .. 22 Polarization Index.

5 22 Conversion of the measured 22 Insulation assessment .. 23 PROTECTIONS ..23 Thermal protections .. 23 Temperature sensors .. 23 Alarm and trip temperatures .. 23 11171307 Installation, operation and maintenance manual Slip ring motor M line - Horizontal l 7. Temperature and ohmic resistance of the PT100 thermoresistance .. 24 Space heater .. 24 Water leak sensor .. 24 Water leak sensor .. 24 COOLING .. 24 Enclosed motors .. 25 Open 25 Air-water heat exchange cooling .. 26 Radiators for application with seawater .. 26 Independent ventilation cooling .. 26 ELECTRICAL ASPECTS .. 26 Electrical 26 Main electrical connections .. 26 Grounding .. 27 Connection diagrams .. 28 Connection diagrams according to 28 Stator connection diagrams.

6 28 Rotor connection diagrams .. 28 Connection diagrams according to NEMA MG1 .. 29 Stator connection diagrams .. 29 Rotor connection diagrams .. 29 Rotation direction .. 29 Accessory connection diagrams .. 29 Motorized brush holder connection diagram .. 30 Condition for starting with lowered brushes and non-short-circuited slip rings 30 Condition for operation with lifted brushes and short-circuited slip rings .. 31 Motorized brush holder operation 32 Manual operation .. 32 MECHANICAL ASPECTS .. 32 Foundations .. 32 Foundation loads .. 33 Base types .. 33 Concrete base .. 33 Sliding base .. 33 Metal 33 Anchor bolts .. 33 Anchor plate set .. 34 Natural frequency of the 34 Leveling .. 34 Alignment.. 34 .. 35 35 Direct coupling.

7 36 Gear coupling .. 36 Belt drive .. 36 Coupling of motors equipped with sleeve bearings .. 36 HYDRAULIC UNIT .. 37 5 STARTING .. 38 STARTING WITH RHEOSTAT .. 38 STARTING OF MOTORS WITH MOTORIZED BRUSH HOLDER .. 38 Conditions for motor starting .. 38 After starting .. 38 Manual operation .. 39 6 COMMISSIONING .. 40 PRELIMINARY INSPECTION .. 40 FIRST STARTING .. 40 Starting procedure .. 40 OPERATION .. 41 General .. 41 Load Condition .. 41 41 Bearings .. 41 High-pressure oil injection system .. 41 Radiators..41 Vibration .. 42 8 l Installation, operation and maintenance manual Slip ring motor M line - Horizontal 11171307. Shaft vibration limits .. 42 Shutdown .. 42 7 MAINTENANCE .. 43 GENERAL ..43 Brushes and slip rings .. 43 GENERAL CLEANING.

8 43 BRUSH COMPARTMENT CLEANING ..43 WINDING INSPECTIONS ..43 WINDING CLEANING ..43 Inspections .. 44 Reimpregnation .. 44 Insulation Resistance .. 44 COOLING SYSTEM MAINTENANCE ..44 RADIATOR MAINTENANCE ..44 VIBRATION ..44 SLIP BRUSH HOLDER AND BRUSHES ..45 Adjustment of the brushes to the load conditions .. 45 SHAFT GROUNDING DEVICE ..45 BEARING MAINTENANCE ..46 Grease-lubricated rolling bearings .. 46 Instructions for 46 Procedures for rolling bearing relubrication .. 46 Rolling bearing relubrication with drawer device for grease removal .. 46 Type and amount of grease .. 46 Alternative greases .. 47 Procedure for changing the grease .. 49 Low temperature greases .. 49 Grease compatibility .. 49 Bearing disassembly .. 49 Bearing assembly.

9 50 Oil-lubricated rolling bearing .. 50 Lubrication 50 Oil 50 Oil .. 50 Bearing operation .. 51 Bearing disassembly .. 51 Bearing assembly .. 51 Rolling bearing replacement .. 51 Sleeve bearings .. 52 Bearing 52 Bearing installation and operation .. 52 Cooling by water 52 Oil .. 52 .. 52 Sleeve bearing operation .. 53 Sleeve bearing maintenance .. 53 Bearing disassembly and assembly .. 54 Bearing protection .. 55 Protection settings .. 55 Disassembly/assembly of the bearing temperature sensors .. 55 MAINTENANCE OF THE BRUSH LIFTING SYSTEM ..57 Parts list .. 58 Preventive maintenance 58 Adjustment of the electromechanical actuator .. 58 Mechanical adjustment .. 59 Electrical adjustment .. 59 8 motor DISASSEMBLY AND ASSEMBLY .. 60 DISASSEMBLY.

10 60 ASSEMBLY ..60 AIR-GAP MEASUREMENT ..60 TIGHTENING TORQUE ..60 SPARE PARTS ..61 11171307 Installation, operation and maintenance manual Slip ring motor M line - Horizontal l 9. 9 MAINTENANCE PLAN .. 62 10 ABNORMALITIES, CAUSES AND 63 11 DECLARATION OF CONFORMITY .. 65 12 ENVIRONMENTAL INFORMATION .. 66 PACKAGE .. 66 PRODUCT .. 66 HAZARDOUS WASTE .. 66 13 WARRANTY TERM .. 67 10 l Installation, operation and maintenance manual Slip ring motor M line - Horizontal 11171307. 1 INTRODUCTION. This manual contains information regarding low and high- voltage , three - phase induction motors. Motors with special features can be supplied with specific documents (drawings, connection diagram, characteristic curves etc.). Those documents, together with this manual, must be thoroughly evaluated before proceeding with the installation, operation or maintenance of the motor .