Siemens 680 Benutzerhandbuch

 

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Lifting devices are provided for handling only.  An 
experienced rigger should be used to install motors. 
 
To avoid damage, the use of spreader bars is recommended 
on other than single point lifts.  Lifting devices are provided to 
facilitate handling with shackles and cables.  Avoid pounding 
or bumping shaft, coupling or bearing parts, as shocks may 
damage bearings. 
 
NOTE WEIGHT BEFORE LIFTING.  The weight is indicated 
on the outline drawing.  Apply tension gradually to cables.  
Do not jerk or attempt to move the unit suddenly. 
 

 

If the equipment is not to be installed and operated soon after 
arrival, store it in a clean, dry, well- ventilated place, free from 
vibration and rapid or wide variations in temperature.  Rotate 
the shaft a minimum of 10 complete turns by hand each 
month to coat the bearings with lubricant  which will retard 
oxidation or corrosion, and prevent possible false brinelling.  
If drain plugs are provided in enclosed motors, they must be 
removed periodically to drain any water accumulation from 
the motor.  Consider a unit in storage when: 
 
1.  It has been delivered to the job site and is awaiting 

installation. 

2.  It has been installed but operation is delayed over 30 

days pending completion of plant construction. 

3.  There are long (30 day) periods between operating 

cycles. 

4. 

The plant (or department) is shut down for 30 days.

 

 

Storage requirements vary, depending on the length of 
storage and the climate. For storage periods of three 
months or longer or climate variations, consult Siemens 
Storage Recommendations ANIM-03114. Storage 
maintenance is to be documented for warranty 
information. 

 

 

The motor type designation consists of a basic letter or 
letters indicating the motor enclosure type to which other 
letters may be added denoting modifications. 

 

CGG or NCGG 

Totally Enclosed 

Water to Air Cooled 

CAZ 

Totally Enclosed 
Air to Air Cooled 

 

Type CGG, NCGG – 500 Frame and 
Type CGG – 580, 680, 800 & 1120 Frame 
The heated internal air from the hot stator core is directed to 
an internally mounted heat exchanger where it is cooled and 
recirculated back into the motor in a closed cooling loop. The 
cooled internal air enters the motor from the heat exchanger 
and non-metallic air baffles direct the air to an internal rotor 
fan that circulates it through the rotor core, around the coil 
ends, into the air gap, and through the vent ducts in the rotor 
and stator cores. Heated air is exhausted through internal 
openings in both sides of the motor and is directed to the 
heat exchanger in the motor top cover. The hot internal air is 
circulated over the finned surface of the heat exchanger. A 
steady flow of cooling water provided by the customer enters 
and exits the heat exchanger. Refer to motor outline drawing 
for specific water inlet and outlet locations. 
 
Type CAZ – 580, 680, & 800 Frame 
The heated internal air from the hot stator core is directed to 
an internally mounted heat exchanger where it is cooled and 
recirculated back into the motor in a closed cooling loop. The 
cooled internal air enters the motor from the heat exchanger 
and non-metallic air baffles direct the air to an internal rotor 
fan that circulates it through the rotor core, around the coil 
ends, into the air gap, and through the vent ducts in the rotor 
and stator cores. Heated air is exhausted through internal 
openings in both sides of the motor and is directed to the 
heat exchanger in the motor top cover. The hot internal air is 
circulated over a series of cooling tubes in the heat 
exchanger. A steady flow of cool ambient air is blown through 
the cooling tubes by a shaft mounted external fan or an 
auxiliary blower mounted on the heat exchanger. Refer to 
motor outline drawing for specific air intake and exhaust 
locations.