Sewage pumping station, Croatia Pumpe Nova

As a partner for the electrical part of the project, in cooperation with Croatia Pumpe Nova d.o.o. from Karlovac, we have developed a complete monitoring and remote control center for sewage pumping station.

Sewage pumping station is used in waste water systems and serves to raise water level in the drainage system. The pumping station is detached and adapted for installation below ground level.

The station features two pump generator units with mutually independent ascent pipelines which are connected to a common outlet pipeline. The pumps operate independently and individually (1+1) and in the peak loads both pumps can operate parallel. The pumps are switched on via soft-start device.

Electrical equipment consists of a control cabinet + ROPS with the power section of the equipment, and computational unit with logic control and remote communication unit. Power section consists of power input terminal from the public electricity network and power input terminal from the auxiliary electric power generators.

An ultrasonic probe is also integrated in the pumping station for level measuring, two floats for detecting the level in the station and two pressure probes on ascent pipelines.

The control panel includes ON/OFF signalization for the pumps, signal for over-current protection on the soft-start device and signal for water presence in the motor winding. In addition, instruments for voltage and current measuring of the pump motor are on the panel.
Each pump has a switch to select the mode of operation. Operation can be MANUAL – 0 – AUTOMATIC.
At automatic operation mode the computational unit manages the pump. The display on the computational unit shows work hours of each pump.

The computational unit also holds a communication unit via GSM/GPRS communication interface. All the relevant information about the work of pumping stations is transmitted in real time to a server and can be presented on any computer or smart phone that has been granted access via an access password.
Manual management of the pumps is possible via access approved computer which limitations depend on the actual level in the pumping station.
The capacity and number of pumps and size of the shaft is variable, as required by the user.