WEG MGA Manuals

Manuals and User Guides for WEG MGA. We have 1 WEG MGA manual available for free PDF download: Installation, Operation And Maintenance Manual

WEG MGA Installation, Operation And Maintenance Manual

WEG MGA Installation, Operation And Maintenance Manual (59 pages)

Low and high voltage three phase induction motors

Brand: WEG | Category: Engine | Size: 2 MB

Table of Contents

Table of Contents
7
1 Introduction

11
- Safety Warnings in the Manual
  11
2 General Instructions

12
- Qualified Personnel
  12
- Safety Instructions
  12
- Standards
  12
- Environmental Conditions
  13
- Operating Conditions
  13
- Voltage and Frequency
  13
3 Receiving, Handling and Storage

14
- Receiving
  14
- Handling
  14
  - Motor Positioning
    15
- Storage
  15
  - Outdoor Storage
    15
  - Extended Storage
    15
    
    Storage Location
    15
    
    Indoor Storage
    16
    
    Outdoor Storage
    16
    
    Separate Parts
    16
  - Preservation During the Storage
    16
    
    Exposed Machined Surfaces
    16
    
    Insulation Resistance
    16
    
    Sealing
    16
    
    Space Heater
    16
    
    Bearings
    17
    
    Grease-Lubricated Rolling Bearing
    17
    
    Oil-Lubricated Rolling Bearing
    17
    
    Sleeve Bearing
    17
    
    Terminal Boxes
    17
    
    Air-Water Heat Exchanger
    18
    
    Cleanliness and Conservation of the Motor During Storage
    18
    
    Inspections and Records During Storage
    18
    
    Predictive / Preventive Maintenance
    18
    
    Maintenance Plan During Storage
    19
  - Preparation for Commissioning
    20
    
    Air-Water Heat Exchanger
    20
    
    Bearing Inspection
    20
    
    Bearing Lubrication
    20
    
    Cleaning
    20
    
    Insulation Resistance Verification
    20
    
    Others
    20
4 Installation

21
- Installation Site
  21
- Shaft Lock
  21
  - Axial Lock
    21
  - Radial Lock
    21
  - Procedure for Replacing the Radial Locking Device
    21
- Rotation Direction
  21
- Insulation Resistance
  22
  - Safety Instructions
    22
  - General Considerations
    22
  - Measurement on the Stator Windings
    22
  - Additional Information
    22
  - Polarization Index
    22
  - Conversion of the Measured Values
    23
  - Insulation Assessment
    23
- Protections
  23
  - Thermal Protections
    23
    
    Alarm and Trip Temperatures
    24
    
    Temperature Limits for the Windings
    24
    
    Space Heater
    25
    
    Temperature and Ohmic Resistance of the PT100 Thermoresistance
    25
  - Water Leak Sensor
    25
- Cooling
  25
  - Air-Water Heat Exchange Cooling
    25
    
    Radiators for Application with Seawater
    25
  - Independent Ventilation Cooling
    26
- Electrical Aspects
  26
  - Electrical Connections
    26
    
    Grounding
    26
    
    Main Electrical Connections
    26
  - Connection Diagrams
    27
    
    Connection Diagrams According to IEC60034-8
    27
    
    Stator Connection Diagrams
    27
    
    Accessory Connection Diagrams
    28
    
    Connection Diagrams According to NEMA MG1
    28
    
    Rotation Direction
    28
    
    Stator Connection Diagrams
    28
- Mechanical Aspects
  29
  - Base
    29
  - Base Loads
    29
  - Motor Mounting
    29
    
    Motor with Hollow Shaft and Flange
    29
    
    Motor with Solid Shaft and Flange
    29
  - Anchor Plate Set
    29
  - Natural Frequency of the Base
    30
  - Leveling
    30
  - Alignment
    30
  - Hollow Shaft Motor Alignment
    31
  - Doweling
    31
  - Couplings
    31
    
    Belt Drive
    32
    
    Coupling for Hollow Shaft Motors
    32
    
    Direct Coupling
    32
    
    Gear Coupling
    32
- Hydraulic Unit
  32
5 Starting

33
6 Commissioning

34
- Preliminary Inspection
  34
- First Starting
  34
  - Starting Procedure
    34
- Operation
  35
  - General
    35
  - Temperatures
    35
  - Bearings
    35
    
    High-Pressure Oil Injection System
    35
  - Radiators
    35
  - Vibration
    36
  - Shaft Vibration Limits
    36
  - Shutdown
    36
7 Maintenance

37
- General
  37
- General Cleaning
  37
- Winding Maintenance
  37
  - Winding Inspection
    37
  - Winding Cleaning
    37
  - Inspections
    37
  - Reimpregnation
    37
  - Insulation Resistance
    38
- Cooling System Maintenance
  38
- Radiator Maintenance
  38
- Vibration
  38
- Anti-Reversion Ratchet Maintenance
  38
- Shaft Grounding Device
  38
- L Installation, Operation and Maintenance Manual – Squirrel Cage Motor – M Line – Vertical
  38
- Bearing Maintenance
  39
  - Grease-Lubricated Rolling Bearings
    39
    
    Instructions for Lubrication
    39
    
    Procedures for Rolling Bearing Relubrication
    39
    
    Rolling Bearing Relubrication with Drawer Device for Grease Removal
    39
    
    Type and Amount of Grease
    39
    
    Alternative Greases
    40
    
    Before Disassembling
    41
    
    Disassembly - Vertical Bearings
    41
    
    Grease Compatibility
    41
    
    Low Temperature Greases
    41
    
    Procedure for Changing the Grease
    41
    
    Bearing Assembly
    42
    
    Lower Bearing Disassembly
    42
    
    Upper Bearing Disassembly
    42
  - Oil-Lubricated Rolling Bearing
    42
    
    Bearing Operation
    43
    
    Lubrication Instructions
    43
    
    Oil Change
    43
    
    Oil Type
    43
    
    Bearing Disassembly
    44
    
    Bearing Assembly
    45
  - Rolling Bearing Replacement
    45
  - Sleeve Bearings
    45
    
    Bearing Data
    45
    
    Bearing Installation and Operation
    45
    
    Cooling by Water Circulation
    45
    
    Oil Change
    45
    
    Bearing Disassembly and Assembly
    46
    
    Sealing
    46
    
    Sleeve Bearing Maintenance
    46
    
    Sleeve Bearing Operation
    46
    
    Thrust Bearing (Upper)
    46
    
    Guide Bearing (Lower)
    47
  - Bearing Protection
    47
    
    Disassembly/Assembly of the Sleeve Bearing Temperature Sensors
    47
    
    Protection Settings
    47
8 Motor Disassembly and Assembly

48
- Parts List
  48
- Disassembly
  48
- Assembly
  48
- Air-Gap Measurement
  48
- Tightening Torque
  49
- Spare Parts
  50
9 Maintenance Plan

51
10 Abnormalities, Causes and Solutions

52
11 Declaration of Conformity

54
12 Environmental Information

55
- Package
  55
- Product
  55
- Hazardous Waste
  55
13 Service Network

55

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