Custom motor control centre for fire suppression system

The T-T Controls team recently supplied a motor control centre for a fire suppression system in an apartment complex in Mayfair, London.

The floor-standing control panel is housed in a double-door mild steel kiosk and operated via a Programmable Logic Controller (PLC) with bespoke software developed by T-T’s electrical engineers in collaboration with the client.

The system consists of seven booster pumps, one jockey pump and a pressure transducer that controls the panel’s start function.

The jockey pump maintains consistent pipeline pressure when the system is inactive. When a fire is detected, the sprinklers start, causing a drop in pipeline pressure. The pressure transducer detects this drop and activates the control panel. The control panel then controls pump operation in order to maintain the water pressure needed to supply each fire suppression outlet.

This motor control centre is unique in that it is designed to operate continuously once activated due to the critical nature of the task; any faults that occur, such as pump overloading, are managed so as not to interrupt the system’s operation.

T-T’s experts used a modular design for the motor control centre so that the number of motors and pumps in the system can be easily adjusted to reflect the application’s demand. Along with the standardised panel design and bespoke PLC software, this panel configuration can be scaled for use in other fire suppression systems supplied by the client.

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