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Sensors & Instrumentation Live

NEC Birmingham(B40 1NT)

25/09/2019 - 26/09/2019

Sensors & Instrumentation Live will celebrate its 10 year anniversary in 2019 and the UK’s (more)

PPMA Show 2019

NEC, Birmingham(B40 1NT)

01/10/2019 - 03/10/2019

The UK’s largest ever event in the processing and packaging sector calendar. With over 350 exhibitors (more)

Advanced Engineering 2019

NEC, Birmingham(B40 1NT)

30/10/2019 - 31/10/2019

The UK's largest annual advanced manufacturing trade show, Advanced Engineering is your opportunity to (more)

Harmonious outcome for thyristor controller

Harmonious outcome for thyristor controller Anew power controller, employing novel technology, has been developed by REO. Called the Reotron MEW 700/50 2S, the controller operates on the phase-angle principle but, unlike traditional systems, it reduces the harmonics (power factor) and provides a smoother process. The unit can be used for voltage, current or power regulation. The Reotron controller produces two output voltages simultaneously; one is adjusted by firing the thyristors at a variable phase-angle, whilst the other is permanently on full conduction but at a lower voltage level. This avoids abrupt switch-on of current at the firing-angle. The two outputs are combined by interposing a transformer, with two primary windings, between the controller and the load. The standard Reotron controller is built as a module with bus-bar and snap-on connectors, and it has a digital control panel for setting up the various operating parameters.

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