Howard Small Power - Manual (Page 10)

Document 2.4.54 Revision 0
July 2006 Small Power Substation Transformers
10
8. Delta/Wye and Series/Multiple Switch
Settings. Check delta/wye and series/multiple
switch settings to make sure they are set
correctly. If these connections are made using
an internal terminal board, check to ensure
that these connections are made properly
according to the chart on the transformer
nameplate. If the transformer is equipped
with an internal terminal board, refer to page 7
for instructions and warnings prior to opening
tank.
9. Grounding. Check to ensure that the
transformer tank is permanently and effectively
grounded. The transformer tank ground pad is
located near the bottom of the tank.
10. Wiring. Check wiring of control and alarm
circuits (if provided) to make sure there are
no loose connections and no damage to
insulation.
11. Fluid Level. Check to make sure the fluid level
is correct as indicated by the fluid level gauge.
12. Tank Finish. Check all painted surfaces
to make sure that there is no damage or
corrosion.
13. Bolted Connections. Check all bolted
connections for tightness.
14. Tools. Check to make sure that all tools and
equipment are accounted for and have been
removed from the transformer.
15. Fluid Temperature. Read the fluid temperature
gauge and make sure the temperature is no
lower than minus 20°C before the unit is
energized.