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95-03009
MOTOR OVERLOAD CONDITIONS
Centrifugal pump motors may overload
(draw excessive
electrical current)
under certain conditions. This will trip
motor overload protection or burn out motor.
Certain combinations will overload motor when operated
with open, unrestricted discharge which results in too
high flow rate. Additional discharge restriction may be
required to lower flow rate and lower horsepower
requirements with .
DO NOT
add restriction to supply
line.
(If pump was incorrectly selected, a smaller impeller
may be required or a higher motor horsepower may be
required.)
AMMETER TEST
If uncertain about pump selection and application, the electrician
should temporarily install an ammeter in the electrical service to
determine motor load.
Operate pump under process conditions and check motor amp draw
versus nameplate full load rating. If amp draw exceeds motor rating,
a system change or pump change is required.
If process conditions and/or liquid changes (higher viscosity, higher
specific gravity) recheck motor amp draw.
Contact your authorized Waukesha Cherry-Burrell Distributor for
assistance.
(See PARTS ORDERING page 50 for information.)
TROUBLESHOOTING
MOTOR OVERLOADING
Summary of Contents for 200 series
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Page 25: ...24 95 03009 MAINTENANCE SEE PAGE 34 MOTOR MOUNTS ELECTRIC MOTORS ...
Page 26: ...25 95 03009 MAINTENANCE SEE PAGE 34 MOTOR MOUNTS ELECTRIC MOTORS ...
Page 30: ...29 95 03009 AVAILABLE SEALS FOR 200 SERIES PARTS LISTS Figure 38 ...
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