Nidec LEROY-SOMER LSA 52.2 MHV User Manual

Name: Nidec LEROY-SOMER LSA 52.2 MHV
Brand: Nidec
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5.14 RE-VARNISHING

CAUTION:

RE VARNISHING MUST ONLY BE CONSIDERED IF

ABSOLUTLY NECESSARY. A RE VARNISHING

OPERATION DONE ON A WINDING STILL DIRTY OR

NOT PERFECTLY DRY MAY CONDUCE TO A

DEFINITIVE LOSS OF INSULATION

lectric Power Generation

Installation and maintenance

5654 en - 2017.10 / a

LSA 52.2 MHV

Industrial Range Alternators - 4 pole

Default Chapter2
- Table of Contents2
General Information4
Introduction4
- General Points4
- Safety Notes4
- Conditions of Use4
General Description5
- Generator (Arep)5
- Excitation System5
Description of Sub-Assemblies6
Stator6
- Electric Machine Armature6
- Excitation Field Winding6
- Stator Protection6
Rotor7
- Revolving Field-Coil7
- Excitation Armature7
- Fan (Machines: IC 0 A1)7
- Rotating Diode Bridge7
- Balancing8
Terminal Box8
- Description8
- Automatic Voltage Regulator (AVR)8
Nameplates8
- Main Nameplate8
- Lubrication Nameplate8
- Rotation Direction Nameplate8
Anti Friction Bearing9
- Description of Antifriction Bearings9
- Antifriction Bearing Protection Devices9
Not Applicable9
Transport Locking System9
Installation10
Transport and Storage10
- Transport10
- Storage Warehouse10
- Maritime Packing10
- Unpacking and Installation10
- Storage Measures of Antifriction Bearings10
- Not Applicable10
- Storage Measures of Open Drip Proof Machines10
Installation of the Machine11
- Fitting the Coupling (Double-Bearing Machine Only)11
- Fitting the Stator11
Machine Alignment11
- Alignment General Points11
- Two Bearings Machine Alignment (Flanged)13
  - Machines Without Axial End Play (Standard)13
Electrical Connections14
- General Points14
- Phase-Sequence14
  - Standard Units ; IEC14
  - On Request ; NEMA15
- Insulating Distances15
- Added Products in the Terminal Box15
Mechanical Start-Up Inspection16
- Not Applicable17
- Vibrations17
Start-Up16
Electrical Start-Up Inspection16
- General Points16
- Winding Insulation16
- Electrical Connections16
- Parallel Operation16
Start-Up Sequence17
- Static Checks17
- Rotating Checks17
- Generator Start up Check List19
Maintenance and Servicing21
General21
Maintenance Schedule22
- General22
- Stator22
- Rotor22
- Terminal Box22
- Not Applicable23
- Anti Friction Bearing23
- Rubber Dampers23
- Protection Devices23
Air Gap Check24
- General Points24
- Double Bearing Machine24
Anti Friction-Bearings24
- Cleaning Bearings from Old Grease24
- Cleaning Bearings Assembly Area25
- Bearing Removal25
- Bearing Re-Assembly26
Not Applicable26
Lubricants26
- Greases26
- Oils27
Not Applicable28
Bolt Tightening28
- General28
- Steel Screw in Steel Tapping28
- Plugs28
- Electrical Contact29
- Rotating Diodes29
- Synthetic Parts29
Electrical Measuring Instruments29
- Instruments Used29
Windings Insulation Check29
- General29
- Insulation Measure29
- Polarization Index30
Rotating Diode Bridge Test31
Cleaning the Windings31
- General Points31
- Coil-Cleaning Products31
- Cleaning Operation31
Drying the Winding32
- General Points32
- Drying Method32
  - Drying Generator in a Stopped Position32
  - Drying Generator in Rotation32
Re-Varnishing33
Typical Assemblies and Drawings34
Machine Cut Views34
- Machine Type A5234
Anti Friction Bearing Assembly35
- Machine Type A52.235

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Nidec LEROY-SOMER LSA 52.2 MHV Specifications

General

Brand	Nidec
Model	LEROY-SOMER LSA 52.2 MHV
Category	Portable Generator
Language	English

Nidec LEROY-SOMER LSA 52.2 MHV User Manual

Table of Contents

Questions and Answers:

Nidec LEROY-SOMER LSA 52.2 MHV Specifications