Type GSA Power Supplies are components used to convert incoming voltage AC power to DC output, either single phase or 3 phase regulated depending on the unit selected. The 24 volt DC standard size outputs are available 2.5 Amp to 120 Amp.

Other DC output voltages dow to 5 volt DC are also available. Many models are DIN rail mountable.

The opening and the closing of every electric device generates various random circuit phenomenon's depending on the type of loading, connecting gears, cables, screens, etc. and their effect on command devices, bother electro-mechanical and electrical. The mixed overvoltages, so generated, result from the disconnecting of these inductive loads. The electrical "noise" generated by these inductive loads varies dramatically. Typical diagrams include:

Every load represents a combination of factors such as, resistance, capacitive and inductive loads, type of input, temperature variations, etc., which determines the variables to consider in the choice of the most suitable transient voltage suppressor to avoid random malfunction or direct, the destruction of the connected device.

The suppression, which can operate at different circuit levels, is obtained using a module, mounted in parallel to the inductive load.

Drastic variations in load current, on power lines, generate radio frequecy interferences.

Normally defined as "conducted" emission noise, interference through the power line wires, flows throughout all the line. Additionally the "radiated" emission noise is transmitted by the wires through the air, as if these were antennas.

This difference is only theoretical because the voltage and currents, changing though time, correspond with the radiated noise. Every radiated noise induced on the power wires, work as receiving antennas, porducing an equivalent conducted signal. LC Filters, then, are key in power line distribution to avoid tese interferences in the electrical network.

The typical LC filter has circuit configuration, as noted in the "Detas Power Line Filters" pdf document.