ABB NWX511A-2/R HESG112548R12｜Analog Control Station｜

The main control board for simulating and regulating the excitation system of thermal power turbine generator units belongs to the core control unit of generator excitation regulation. It is specifically used for synchronous generator excitation current closed-loop regulation, stabilizing the terminal voltage and reactive power of the unit. It is a key self-control component of the power plant generation system and is compatible with the Symphony/INFI90 complete power plant DCS system.
Generator excitation closed-loop regulation control
Real time collection of generator terminal voltage, stator current, reactive power analog signals, built-in PID excitation regulation algorithm, automatic adjustment of excitation output current, maintenance of grid voltage stability, suppression of unit reactive power fluctuations and voltage flicker.
Multi order relay fault protection logic
Integrated differential protection, three-phase overcurrent protection, and ground fault protection module:
Transformer/generator winding short circuit, inter turn short circuit differential quick break protection;
Three stage overcurrent time limit tripping and high and low voltage side grounding fault monitoring;
The current transformer can still operate quickly under saturation conditions to avoid damage to the generator.

NWX511A-2/R HESG112548R12

NWX511A-2/R HESG112548R12

ABB NWX511A-2/R HESG112548R12｜Analog Control Station｜