The thyristoric excitation system of the STS-300-800 2.5 UHL4 was modernized to ensure the stable and trouble-free operation of the G2 generator (20 MW) of the GTU-15 TPP PJSC “Railway Cardboard and Tarry Plant”.
As part of the modernization, a control cabinet was developed and mounted, which replaced existing controls, ARV and protection.
The commissioning and commissioning of the excitation system with a new control cabinet were completed.
generator parameters:
- Nominal active power – 20.0 MW;
- Nominal voltage – 10.5 kV;
- nominal current – 1375 a;
- Nominal excitation current – 548 A;
- excitation voltage – 192 century
The parameters of the excitation system:
- Power converter parameters:
– nominal rectified voltage – 300 V;
– nominal rectified voltage – 300 V;
– rated supply voltage – 572 V;
- cooling shu natural air;
- Reservation of controls, ARV and two -channel protection according to the 1+1 scheme.
- Power converter parameters:
– nominal rectified voltage – 300 V;
– nominal rectified voltage – 300 V;
– rated supply voltage – 572 V; - cooling shu natural air;
- Reservation of controls, ARV and two -channel protection according to the 1+1 scheme.
The ARV regulator is a strong-action regulator of the ARV-SDPK of the development “NPP” Preverter-Compulsion “.