Ingersoll-Rand G 270, Users Manual And Maintenance Manual

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3
INSTALLATION AND MAINTENANCE
LSA 46.2 / 47.1
ALTERNATORS
Ref. 2981 GB - 4.33/a - 04.00
LEROY-SOMER
CONTENTS
1 - RECEIPT ........................................................ 4
Standards and safety measures
Inspection
Identification
Storage
2 - TECHNICAL CHARACTERISTICS ................. 5
Electrical characteristics
Options
Mechanical characteristics
Options
Excitation system
R448 AVR characteristics
R 448 power supply connection
Frequency compared with voltage
LAM characteristics
Typical effects of the LAM
R 448 AVR options
3 - INSTALLATION .................................................. 8
Assembly
Handling
Coupling
Location
Inspection prior to first use
Electrical checks
Mechanical checks
Terminal connection diagrams
Terminal connection : LSA 46.2/47.1 - 12-wire
Terminal connection : LSA 46.2/47.1 - 6-wire
Option connection diagram
Connection checks
Electrical checks on the AVR
Commissioning
Settings
R 448 settings
Max. excitation setting
Special type of use
4 - SERVICING - MAINTENANCE ......................... 15
Safety measures
Regular maintenance
Checks after start-up
Cooling circuit
Bearings
Electrical servicing
Mechanical servicing
Fault detection
Mechanical defects
Electrical faults
Checking the winding
Checking the diode bridge
Checking the windings and rotating diodes
using separate excitation
Dismantling, reassembly
Tools required
Screw tightening torque
Access to diodes
Access to connections and the regulation system
Replacing the NDE bearing on
single-bearing machines
Replacing the DE bearing on
two-bearing machines
Complete dismantling
Reassembling the bearings
Reassembling the rotor
Installation and maintenance of the PMG
Mechanical characteristics
Electrical connection
Table of characteristics
Average values for LSA 46.2
Average values for LSA 47.1
5 - SPARE PARTS ........................................ 23
Technical support service
Accessories
Space heater for use when stopped
Stator thermistor temperature probes (PTC)
Connection accessories
Exploded views, parts list
Single bearing
Two-bearing