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Mecc Alte ECO 32 3L - User Manual

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ALTERNATORI AUTOREGOLATI SERIE ECO-ECP
ISTRUZIONI PER L’USO E LA MANUTENZIONE
GB
SELF- REGULATING ALTERNATORS SERIES ECO-ECP
OPERATING AND MAINTENANCE INSTRUCTIONS
F
ALTERNATEURS AUTO - REGULES SERIE ECO-ECP
MANUEL D’INSTRUCTION ET DE MAINTENANCE
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SELBSTREGELNDER GENERATOR SERIE ECO-ECP
BETRIEBS-UND WARTUNGSANLEITUNG
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ALTERNADORES AUTOREGULADOS SERIE ECO-ECP
INSTRUCCIONES PARA USO Y MANTENIMIENTO
ECO
ECP
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Summary

Machine Description

Introduction

Inspection on Delivery

Safety Requirements

Introduction to Safety

Essential safety precautions for handling, installation, and operation of the generator.

Important Safety Symbols

Definition of safety symbols indicating risks of damage, injury, or death.

Earth Connection Requirements

Mandatory earth connection for generator installation and compliance with local regulations.

Installer Responsibilities

The final installer is responsible for all necessary safety protections and compliance.

Alignment with Prime Mover

Alternator must be perfectly aligned with the prime mover to avoid dangerous vibrations.

Never Operate with Protections Removed

Generators must never run with terminals cover, front covers, or fan guards removed.

Danger of Short Circuit

Prohibition of using hydro-cleaners or spraying liquids over electrical parts due to IP21 protection.

Transport and Storage

Important: Storage and Insulation Tests

After long storage or signs of condensation, perform insulation tests by skilled personnel.

Insulation Test Procedure

Disconnect voltage regulator before testing; dry alternator in oven if results are too low.

Mechanical Coupling

Electrical Connections

Protections: U.V.R.6;1-F - S.R.7;2-G

Description of underspeed and overload protections, their intervention thresholds, and adjustable settings.

Parallel Operation

Starting and Stopping Operations

Personnel Qualification for Operations

Operations must be carried out by skilled personnel who have read and understood the manual's safety instructions.

Important: First Start-Up Checks

During first start-up at reduced speed, check for anomalous noises; stop immediately if detected.

Prohibited Cleaning Methods

Never use liquids or water; do not use compressed air on internal electrical parts to avoid short-circuits.

Maintenance

Qualified Personnel for Maintenance

High-qualified technicians must perform maintenance and fault search due to inherent dangers.

Precautions Against Accidental Starting

Take precautions to prevent inadvertent machine restart during maintenance or fault search.

Earth Resistance Measurement

Measured earth resistance must be > 1MΩ; dry windings if lower. Check values with Megger or similar.

External and Internal Generator Cleaning

Clean externally with compressed air; strictly forbid hydro-cleaners, detergents, or liquids.

Diode Bridge Replacement

Instructions for replacing diode bridges (T30, T18), testing individual diodes with a multimeter.

Defects and Remedies

Generator Does Not Excite

Troubleshooting steps: check fuse, increase speed, apply temporary battery voltage.

Voltage Lower Than Nominal Under Load

Remedies: reset voltage, check current, cos φ, speed; substitute regulator; check diodes.

12-Wire Alternator Connections (Table 2)

Regulator Wiring Diagrams (Table 3)

Electrical Diagram with S.R.7;2-G (Three-Phase Sensing)

Electrical Diagram with U.V.R.6;1-F (Three-Phase Sensing)

Electrical Diagram with S.R.7;2-G (Zig-Zag)

Electrical Diagram with U.V.R.6;1-F (Zig-Zag)

Electrical Diagram with Three-Phase Sensing

12-Terminal Alternators: Three-Phase Sensing Wiring Diagram (SR7;2-G)

12-Terminal Alternators: Three-Phase Sensing Wiring Diagram (UVR6;1-F)

Manual;Automatic Command with S.R.7;2-G Regulator

Manual;Automatic Command with U.V.R.6;1-F Regulator

Terminal Box 28-31-32 Regulator Wiring

Terminal Box 28-31-32 Wiring with Parallel Device

Terminal Box 34 Regulator Wiring

Terminal Box 34 Wiring with Parallel Device

Terminal Box 38 Regulator Wiring

Terminal Box 38 Wiring with Parallel Device

Terminal Box 40 Regulator Wiring

Terminal Box 43 Regulator Wiring

Terminal Box 46 Regulator Wiring

Bearing Maintenance and Periodic Maintenance Table

Tightening Torque Table

Exciter Rotor Diode Check Procedure

Procedure for Checking Diodes (2 and 4 pole)

Step-by-step procedure to check exciter rotor diodes using battery, lamp, voltmeter.

DSR Digital Regulator Appendix

Overload Protection Calibration Procedure

Step-by-step procedure to calibrate overload protection using Hz and AMP trimmers.

Alternators with 6 Terminals Wiring Diagram

Alternators with 12 Terminals Wiring Diagram (SR7;2-G)

Alternators with 12 Terminals Wiring Diagram (UVR6;1-F)

6-Terminal Alternators: Three-Phase Sensing Wiring Diagram

Warranty Information

Warranty Void Conditions (E)

Warranty void if product is stored improperly, modified by unauthorized personnel, used incorrectly, or overloaded.

Mecc Alte ECO 32 3L Specifications

General IconGeneral
Poles4
Voltage400V
Frequency50Hz
ProtectionIP23
Insulation classH
Power Factor0.8
Cooling MethodIC01
PhaseThree Phase

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