PYD Electrobombas MOTOR 8 Series, Руководство по эксплуатации и техническому обслуживанию, Страница: 8 / 18

PRE-INSTALLATION CHECKLIST
Please check the following:
1. Ambient temperature of the water to be pumped and ensure that it is lower than the
rated temperature of the motor.
2. Engine PH should be between 6.5 and 8.
3. The maximum chlorine content in the water must be less than 500 PPM.
4. The maximum content of iron sulphuric acid in the water must be less than 15 ppm.
5. The maximum fluoride content in the water must be less than 0.8 PPM.
6. The maximum content of sand must be less than 25 PPM.
7. The electrical control equipment includes a suitable fast-acting current overload protec-
tion, which is set to shut down the motor within 3 seconds under locked rotor current or
starting current conditions.
8. The electrical control equipment includes suitable fuses or circuit breakers to shut down
the system in the event of a fault.
9. The variation of the power supply voltage and frequency combination is within 5% of the
motor nameplate voltage and frequency.
10. The maximum voltage unbalance must be less than 5%.
11. The wire size is calculated to ensure that the voltage at the motor is still within 10% of
the motor nameplate voltage after allowing for the volt drop at full current load.
12. Waterproof submersible type cables should be used with these motors.
13. The motor has been properly selected to suit the pump, the thrust load of the pump, the
power supply capacity and the water availability of the well. The motor should be installed
with at least 3 meters (10 feet) between the bottom of the motor and the bottom of the
well.
14. The motor has been properly selected to suit the pump, the thrust load of the pump, the
power supply capacity and the water availability of the well. The motor should be installed
with at least 3 metres between the bottom of the motor and the bottom of the well supply
capacity and the water availability of the well. The motor must be installed with at least 3
meters (10 feet) between the bottom of the motor and the bottom of the well.
15. Connection of the motor to an incorrect supply will invalidate any warranty.
16. Protection against single phase adjustment is strongly recommended. If the motor
fails due to single phasing, the warranty will be void.
17. The installation of lightning arresters to protect the control panel, motor cables and
motor is also recommended. Any failure due to lightning will not be covered by the warran-
ty.
18. All cable joints must be properly made by technically competent technicians. They
must be waterproof and give a good electrical connection with no voltage drop.
19. Reduced voltage starting with soft starters, WVF drives, autotransformers (or Star-Del-
ta starters if the motor has been supplied with 6 outputs) can create additional problems
for submersible motors. Be sure to comply with the following points:
* Motor runs at speed in less than 3 seconds.
* Correctly selected overloads or fast tripping circuit breakers are correctly installed and
the motor protection is correctly adjusted.
* Adequate short-circuit protection is installed.
* The starter will allow the motor to generate enough torque to start the pump and run it at
speed. (In general the torque is reduced by the voltage table - a small reduction in voltage
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MANUAL DE INSTALACIÓN Y MANTENIMIENTO
MOTOR PYD 8”
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