1. SAFETY INSTRUCTIONS
Before using the generating set it is necessary to read the generating set and
alternator "Use and Maintenance Manual" and to follow the recommendations below.
⇒ Safe and efficient performance may be achieved only if the machines are used correctly, in
compliance with the instructions provided by the relevant use and maintenance manuals
and safety regulations.
⇒ An electric shock may cause serious personal injury or even death.
⇒ Do not remove either the terminal board cover or the alternator protection grid before the
alternator has come to a complete stop and the generating set starting system has been
deactivated.
⇒ Only competent and qualified personnel should carry out the maintenance of the generating
set.
⇒ Do not wear loose garments when working near the generating set.
People in charge of operating the set must always wear protective gloves and safety shoes. In the event
that the generator, or the whole generating set, needs to be lifted from the floor, the operators must also
wear a safety helmet.
The person responsible for the installation of the generating set must make sure
that all the necessary safety arrangements are in place in order to make the whole
plant compliant with current local safety regulations (earthing, contact protection,
explosion and fire safety measures, emergency stop, etc....)
Safety warnings: Safety notices used in this manual have the following meaning.
IMPORTANT! Refers to dangerous or risky operations that may cause damage to the
product.
CAUTION! Refers to dangerous or risky operations that may damage the product or
cause personal injury.
WARNING! Refers to dangerous or risky operations that may cause serious personal
injury or even death.
DANGER! Refers to an immediate risk that may cause serious personal injury or death.
2. ALTERNATOR DESCRIPTION
The SPE-E1E series includes single-phase 2 poles alternators with brushes equipped with an electronic
regulator.
They are manufactured in compliance with EN 60034-1, EN 60204-1, EN 55014-1, EN 55011, EN61000-6-2,
EN 61000-6-4 specifications, as well as with the 2006/95/CE, 2004/108/CE directives.
Ventilation: Axial with air inlet on the non-drive end side .
Protection. Standard IP 21. IP 23 on request.
Direction of rotation. Both directions are allowed.
Electrical features. Insulation components are made with class H material, for both stator and rotor.
Windings are tropicalized.
Power values. They refer to the following conditions: ambient temperature up to 40°C, altitude up to 1000
m. above sea-level, continuous duty at cosϕ= 1.
OVERLOADS
A 10% overload for one hour every six hour is normally accepted.
Mechanical features.
Casing and covers are made of aluminium alloy which holds out against vibrations. The shaft is made of
high-tensile steel.
The rotor is particularly sturdy to hold out against the runaway speed of the drive motors.
It is equipped with a damping cage which allows satisfactory operation even with single-phase, distorted
loads. Bearings have lifelong lubrication.
Operation in particular settings.
If the alternator is going to be used at more than 1000 m above sea-level, a 4% derating per each 500 m
increase will need to be operated. If ambient temperature exceeds 40°C a 4% derating per each 5°C increase
will need to be operated.
INSTALLATION AND START UP
The following start up and control operations should be carried out only by quali-
fied personnel.
⇒ The alternator must be installed in a well ventilated room. Ambient temperature should not exceed
standard recommended values.
⇒ Particular attention must be paid to ensure that air inlets and outlets are never obstructed.
While installing the alternator it is important to avoid direct suction of warm air coming from the
alternator's outlet and/or from the prime motor.
⇒ Before starting up the alternator it is advisable to check (visually and manually) that all terminals in every
terminal board are properly clamped and that the rotation of the rotor in not blocked in any way.
⇒ If the alternator has not been used for a long time, before starting it up it is recommended to test the
windings insulation resistance to earth, keeping into account that every single part has to be isolated
from the others. This particular checkup must be carried out using a "Megger" instrument at 500 V. c.c..
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