Timer gets started on power generation
A
Sensor-Technik product story
Edited by the Engineeringtalk editorial team
Apr 17, 2006
Sensor-Technik has developed a simple, electromechanical solution to the problems associated with starting up diesel powered mobile electricity generators.
Diesel powered mobile electricity generators are used throughout the world to provide emergency backup power, to provide added power for outdoor concerts, to meet power needs on construction sites, and to provide reliable power in remote areas where there is either an unreliable grid or no power at all.
Although modern generators are frequently computer controlled, startup can often be a problem as battery power can get too low for the computer systems and electronics to operate.
Sensor-Technik was asked to develop a simple, electromechanical solution to this problem, providing a means to start the engine.
Once running, the generator could be switched to power the onboard electronics.
Sensor-Technik recommended a motorised cam timer.
This comprises a small DC motor, with a gearbox providing a full 360-degree turn in 60 seconds.
Mounted on the shaft are several switches, which activate the equipment in stages as required.
Sensor-Technik supplied a complete unit suitable for mounting directly onto a DIN rail.
All that was then required was for a few wires to be connected, either on the production line or as an in-the-field modification.
The only issue for Sensor-Technik was to establish how many switches were needed and the precise switching timings.
This was quickly established and the solution is now available as a standard product.
The world would be a much poorer place without the power of computer technology, but there are still key roles for good old fashioned electromechanical engineering in environments where power supplies or unstable or unreliable.
This particular solution has proved very popular, thanks to its low construction cost and high reliability.
The motorised potentiometer is the ideal solution for the startup operation of motors of large diesel engines, especially for emergency power supplies in countries where high tech electronics are still just a dream of the future and where the local service staff have little or no training in maintaining overly complex systems.
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