At present, the research and development of submersible electric pump domestic manufacturers are less, and the size is small, the product does not form a series of and scale. In order to enhance the competitiveness of the domestic submersible electric pump protector and make up the deficiency of the old protector, it is necessary to develop a kind of protection device for submersible electric pump.
Submersible electric pump protector belongs to the motor protector. In the measurement, protection, communication and other functions, the submersible electric pump protector and the motor protector basic general, but all kinds of protection of
electric submersible pump, such as under load, unbalanced current, over-voltage, under voltage by inverse time type, and protect these in general motor protector in the timing and limiting type.
Submersible electric pump protector must have historical data record, export function, and the conventional motor protector with fault record can be.
For the convenience of electric submersible pump maintenance, assessment, oil submersible electric pump protector need with clock function for punch assessment, and the conventional motor protector without with this function.
2. Characteristics of submersible electric pump protector
Oil submersible electric pump protector can be real-time measurement of three-phase current, three-phase voltage, frequency, and at the same time, active power, power electric parameter display, detection, acquisition to the switch quantity type parameters, 4-20mA process type parameters, through the unified communications sent to the system.
Oil submersible electric pump protector with overload, broken, current imbalance, locked rotor, obstruction, and undervoltage, overvoltage, voltage unbalance protection function, and can realize under just starting.
