OT

4" three-phase oil-cooled motor (3x380-415V / 50Hz)

Electric motors from series OT are 2 pole asynchronous three-phase submersible motors designed to operate coupled to hydraulic parts with 4” Nema standard. Strong and reliable, they are made of materials suitable for contact with water and oil-cooled by FDA - Food Drug Administration approved dielectric fluid. OT motors require a start, operation and protection system.
Supply cable connector is removable for quick and easy maintenance.
 
APPLICATIONS
OT oil-cooled motors ensure reliable working in 4” or larger diameter wells and are designed to be used for lifting, distribution, and pressurisation of water in water systems. OT motors are equipped with phase separator which ensures optimal operation when the motor is used with frequency inverter.
 
CHARACTERISTICS OF CONSTRUCTION
  • 2 pole asynchronous three-phase oil-cooled motor.
  • Rewindable stator and rotor immersed in dielectric fluid (FDA approved).
  • Oversized axial and radial oil-lubricated bearings to guarantee longer life to the motor.
  • The pressure compensation inside the motor is ensured by a special internal diaphragm.
  • Sand protection to guarantee optimal operation even with sand in the borehole.
  • Motor bottom cover for extra protection and safety.
  • Removable lead connector to make installation and maintenance easier.
  • Supply cable according to drinking water regulations (ACS), available in different lenghts.

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  • кВт: 0,37 - 5,5
  • Диапазон напряжения: 380-415V / 50Hz
  • Гидравлический соединительный фланец: Стандартный размер NEMA 4"
  • Допуск напряжения по отношению к номинальным параметром: +6% / -10% Un
  • Вращение: против часовой стрелки
  • Степень защиты: IP 68
  • Класс изоляции: F
  • Температура использования:  max 40° C
  • Флюкс охлаждения: минимум 8 см/секунду
  • Maximum quantity of suspended sand: 600 g/m3
  • Максимум запусков/час: 150, равномерно распределены
  • Монтаж: вертикальный/горизонтальный, вал к верху
  • Максимальная глубина погружения: 150 м
  • PH воды разрешен: 6,4 – 8,0
  • Осевая нагрузка: 1.500 N, 3.000 N 4.500 N(в зависимости от мощности)
  • Требования безопасности: Для двигателей OТ должна быть установлена защита от перегрузки

Информация о правильной установке

  • Before installation, it is necessary to verify technical requirements of the given hydraulic part (thrust, power) to select the correct motor.
  • If you are using a generator with an internal combustion engine, it is necessary that the generator’s power measured in kW (in continuous delivery) is three times the rated power in kW of the submersible pump.
  • We recommend to install a proper cooling jacket in installations bigger than 10 cm, to guarantee the correct motor cooling flow.
  • The maximum quantity of sand allowed in the pumped water is 120 g/m³.

 

 

 

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