ABB DTDX991A 61430001-UW Circuit Board

The DTDX991A 61430001-UW is Circuit Board.The gate units can be grouped into two generations. Within a generation, the gate units are very similar in circuitry and functionality.

They only differ in mechanical size and the dimensioning of the gate drive circuit. Basic design rules and handling / application recommendations for IGCT gate units regarding power supply, insulation and optical control interface, control-, diagnostics- and protection parameters as well as environmental aspects are described in this application note. 

DTDX991A 61430001-UW Data sheet

All modules conform to the highest standards of electromagnetic noise immunity and satisfy the requirements of the EU directives 2014/30/EU and 2014/35/EU. 

For each machine, a control mode can be selected for both governor and automatic voltage regulation (AVR) individually. The behavior of the machine is subject to this control mode and to changes or fluctuations detected in the electrical network or steam system.

The operator is able to give an MW setpoint to the generator, and the regulator will keep the generator at this value. After a new value is set, the setpoint will change slowly to the new value.

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