Emcee 1004156, User Manual

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Technical data 3-phase motors-English Rev.1.1 - 31-12-2005
AC INDUCTION THREE-PHASE MOTORS
Used petrol or benzene in airtight tanks should be disposed of as special refuse with the marking «Petrol» or
«Benzene».
Afterwards, with the outer bearing cap open but the inner cap screwed on, the rotor should be turned slowly and grease
pressed in through the regreasing device until approximately half the empty space between the rolling elements and the
roller tracks is filled with grease.
If a grease with a different soap base is to be used, clean bearing seats thoroughly. Make sure that the bearing
grease used meets the following requirements:
Pour point : approx. 190° C
Ash content : 4%
Water content : 0.3%
Lubricant
Grease K 3 N to DIN 51825 (lithium-based, water resistant to DIN 51807 Part 1, grade 0 or 1). Regrease only with a
similar grease (e.g. Esso Unirex N 3, Shell-Alvania G 3, Esso Beacon 3, Klüber HQ72-102 etc.).
Insulation resistance:
Before commissioning check the insulation resistance. With values ≤1kΩ per Volt rated voltage, dry the
winding.
Check the insulation resistance of each phase against earth by means of a hand-driven generator (max. 630 V
DC) until the measured value is constant. The insulation resistance of new windings is above10 M Ω. The resistance can
be lowered considerably by moisture.
If, at room temperature, the resistance is below 0.5 M Ω, the winding must be dried. In this case the winding temperature
must not exceed 80° C. For drying connect the space heater or another heating device, or apply an AC voltage of 5 or 6
% (connect in delta) of the rated motor voltage to terminals U1 and V1. Repeat the measurement. The motor can be put
into operation when the resistance is above 0.5 M
Ω.
Insulation resistance is temperature-dependent, i.e. if the temperature is increased/decreased by 10 K, the resistance
value is halved/doubled, respectively.
Degrees of protection
Degrees of protection for mechanical machines are designed in accordance with IEC 60034-5 by the letters IP and two
characteristic numerals.
First numeral: protection against contact and
ingress of foreign bodies Second numeral: Protection against ingress of water
IP Description IP Description
0 No special protection 0 No special protection
1 Protection against solid foreign bodies larger
than 50 mm (Example: inadvertent contact with
the hand) 1 Protection against vertically falling water
drops (condensation)
2 Protection against solid foreign bodies larger
than 12 mm (Example: inadvertent contact with
the fingers) 2 Protection against dropping water when
inclined by up to 15°
3 Protection against solid foreign bodies larger
than 2.5 mm (Example: wires, tools) 3 Protection against water spray at up to 60°
from vertical.
4 Protection against solid foreign bodies larger
than 1 mm (Example: wires, bands) 4 Protection against water splashed from any
direction
5 Protection against dust (harmful deposits of
dust) 5 Protection against water projected by a
nozzle from any direction
6 Complete protection against dust. Is not
described for electrical machines to IEC 34-5. 6 Protection against heavy seas or water
projected in powerful jets
7 Protection when submerged between 0.15
and 1 meter
8 Protection when continuously submerged in
water at conditions agreed between the
manufacturer and the user.