Preliminary Checks; Handling; Reception Check; Transportation And Storage - ABB M2A Manual De Instalación E Usuario

1.4 Preliminary Checks

Users should check all documentation quoted in the
standard technical information in conjunction with data
concerning standards on explosion-proofing, such as:
a) Gas group
Industry Gas group
Explosive IIA
atmospheres
IIB
other than mines
IIC
b) Marking temperature
Temperature class T1 T2
Max. temperature °C 450 300 200 135 100 85
Max. temperature rise 400 250 155 90
of surface K
at 40°C
Max. temperature rise of surface is considered to be the
surface inside the motor (rotor) for temperature classes T1,
T2 and T3 and the outer surface of the motor (frame and/
or end shields) for other temperature classes.
It should be noted that the motors are certified and
classified according to their group. This is determined by
reference to the ambient gas or dust atmosphere and by
the marking temperature, calculated as a function of the
ambient temperature of 40°C.
If the motor is to be installed in ambient temperatures
higher than 40°C or at altitudes higher than 1000 meters,
please consult ABB for eventual new rating data and test
reports at the required ambient temperature.
The ambient temperature must not be less than -20°C.
If lower temperatures are expected, please consult ABB.
6 – EN ABB Motors and Generators | Low voltage Ex motor manual 01-2007
Gas type (examples)
Propane
Ethylene
Hydrogen/Acetylene
T3 T4 T5 T6 T125°C T150°C
125
55 40 80

2. Handling

2.1 Reception check

Immediately upon receipt check the motor for external
damage (e.g. shaft-ends and flanges and painted surfac-
es) and if found, inform the forwarding agent without delay.
Check all rating plate data, especially voltage, winding
connection (star or delta), category, type of protection and
temperature class. The type of bearing is specified on the
rating plate of all motors except the smallest frame sizes.
In case of a variable speed drive application check the
150
maximum loadability allowed according to frequency
105
stamped on the motor's second rating plate.

2.2 Transportation and storage

The motor should always be stored indoors (above
–20°C), in dry, vibration free and dust free conditions.
During transportation, shocks, falls and humidity should be
avoided. In other conditions, please contact ABB.
Unprotected machined surfaces (shaft-ends and flanges)
should be treated against corrosion.
It is recommended that shafts are rotated periodically by
hand to prevent grease migration.
Anti-condensation heaters, if fitted, are recommended to
avoid water condensing in the motor.
The motor must not be subject to any external vibrations
exceeding 0.5 mm/s at standstill so as to avoid causing
damage to the bearings.
Motors fitted with cylindrical-roller and/or angular contact
bearings must be fitted with locking devices during trans-
port.

2.3 Lifting

All ABB motors above 25 kg are equipped with lifting lugs
or eyebolts.
Only the main lifting lugs or eyebolts of the motor should
be used for lifting the motor. They must not be used to lift
the motor when it is attached to other equipment.
Lifting lugs for auxiliaries (e.g. brakes, separate cooling
fans) or terminal boxes must not be used for lifting the
motor.
Motors with the same frame may have a different center of
gravity because of different output, mounting arrange-
ments and auxiliary equipment.
Damaged lifting lugs must not be used. Check that
eyebolts or integrated lifting lugs are undamaged before
lifting.
Lifting eyebolts must be tightened before lifting. If needed,
the position of the eyebolt can be adjusted using suitable
washers as spacers.