Sea Recovery Aqua Whisper DX 1400-2, Руководство пользователя

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Aqua Whisper DX Modular 450-1800
Page 9-9
Troubelshooting
Solutions : Check wiring size and connections to,
from, and in between the Power Supply and the
electric motor. Correct wire size or any loose wires.
Check the capacitor on the motor, and replace it if
it has shorted out.
Measure voltage at the motor during attempt to
start it. If voltage drops more than 10% locate and
correct the reason.
Check the motor starter relay (contactor) for
“burnt” contacts.
b) Three Phase Motor
The Three Phase (230/380/460 VAC) Electric
Motor “hums”, pulls starting current (locked rotor)
amperage, does not rotate, and trips the supply
power circuit breaker when attempting to operate
the System.
The Three Phase Electric Motor requires all three
power lines (all three phases) to be operative else
it will “single phase” causing extensive damage to
the motor’s internal windings.
Low voltage will also cause the same symptom.
Low voltage is caused by an undersized power
supply or generator, undersized power lead
wires to the System or motor, loose power wire,
or connection at the motor or within the power
supply line, and “burnt” contacts on the motor
starter relay (contactor).
Solutions
: Check wiring size and connections to,
from, and in between the Power Supply and the
electric motor. Correct wire size or any loose wires.
Measure voltage at the motor during attempt to
start it. If voltage drops more than 10% locate and
correct the reason.
Check the motor starter relay (contactor) for
“burnt” contacts.
Ensure all three phases have power.
c) Grinding Sound
The Electric Motor makes an unusual “grinding”
sound when operated.
Solutions : Check and replace as necessary the
front and rear bearings.
Check to see if the fan is rubbing against
the fan guard.
d) Grinding Noise
The High Pressure Pump makes an unusual
“grinding” noise.
WARNING ! When switching from Three
Phase Generator power to Three Phase
Shore power ALWAYS check phases prior
to operating the System else Reverse
Rotation along with extensive damage to
the High Pressure Pump will occur should
the power be out of phase.
This High Pressure Pump is a Quintiplex Radial Axial
Positive Displacement Plunger Pump made of high grade
Duplex material specifically designed for sea water
Reverse Osmosis applications. The Pump is connected to
the attached electric motor with a flex coupler and safety
bell housing.
As with all Positive Displacement pumps it must
receive a specified minimum amount of water at a
positive pressure. A vacuum at the inlet of the pump
will cause cavitation and damage. This pump does not
use oil, it is self lubricated with the feed water. Internal
components are designed for 8,000 hours of continual
service in sea water. As with any component exposed
to sea water, use is best.
Problems and Symptoms appearing and caused by the
High Pressure Pump or its Electric Motor:
Prior to assuming that the High Pressure Pump’s Electric
Motor has failed, perform a Function Test.
a)
Single Phase Motor
The Single Phase (115 or 230 VAC) Electric Motor
“hums”, pulls starting current (locked rotor)
amperage, does not rotate, and trips the supply
power circuit breaker when attempting to operate
the System.
The Single Phase Electric Motor is a capacitor start
motor. If the motor was started with low voltage,
a drop in voltage during starting, and if this
was repeated several times in rapid concession
the capacitor will short out. Without the aid of
a working capacitor the motor will “hum”, pull
starting current (locked rotor) amperage, not
rotate, and trip the supply power circuit breaker
when attempting to operate the System.
Low voltage will also cause the same symptom.
Low voltage is caused by an undersized power
supply or generator, undersized power lead
wires to the System or motor, loose power wire,
or connection at the motor or within the power
supply line, and “burnt” contacts on the motor
starter relay (contactor).