- 12 -
Operation
Relubricate Bearings (see
Bearings
Section).
Remove Desiccant (if present).
Test Insulation Resistance (see
Tests Before
Operation
).
Regardless of the method of storage, the windings of
every motor should be tested prior to placing in
service. See Insulation Resistance Section under
Corrective Maintenance Section.
Normal Operation
Start the motor in accordance with standard
instructions for the starting equipment used.
Sometimes the load should be reduced to the
minimum, particularly for reduced voltage starting,
and/or high inertia connected loads.
Voltage/Frequency Variation
Motors will operate successfully under the following
conditions of voltage and frequency variation, but not
necessarily in accordance with the standards
established for operating under rated conditions:
1. If the variation in voltage does not exceed
10% above or below rated voltage, with all
phases balanced. Voltage unbalance should not
exceed 1%.
2. If the variation in frequency does not exceed 5%
above or below rated frequency.
3. If the sum of the voltage and frequency variations
does not exceed 10% above or below rated values
provided the frequency variation does not exceed
5%.
Содержание CAZBHS
Страница 25: ... 24 Maintenance UPPER BEARING ARRANGEMENTS Figure 7 Figure 8 ...
Страница 26: ... 25 Maintenance LOWER BEARING ARRANGEMENTS Figure 9 Figure 10 Figure 11 ...
Страница 27: ... 26 Maintenance Self Release Coupling Arrangement At Top Of Motor Figure 12 ...
Страница 30: ... 29 Spare Parts Figure 16 ...
Страница 31: ... 30 Spare Parts Figure 17 ...
Страница 32: ... 31 Spare Parts Figure 18 ...
Страница 33: ... 32 Spare Parts Figure 19 ...
Страница 34: ... 33 Spare Parts Figure 20 ...