Replacement of the electromagnetic exciter of the turbine generator TV-60-2 and ARZ type POA with a single-group two-channel thyristor self-excitation system implementing redundancy schemes (1+1) with microprocessor-based ARV and AWP for monitoring turbine generators TG-5, TG-6, TG-7

Equipment used, specifics of works provided

1. The works starting with dismantling the old system finishing with grid connection to the Ukrainian power system with 60 MW output for TG-5 took 41 days, including dismantling, installation, connection of power and control circuits, as well as comprehensive testing and commissioning.
2. The excitation system SSTE-800-250-2.5-UHL4 (SPE “PREOFRESHCHATELNAYA TECHNIKA”) is a Ukrainian development, the field damping system is developed under a Ukrainian patent.
3. The power transformer TSZP-630/10-UZ (PE “ELTIZ”) 630 kVA, 10.5 kV/0.475 kV, U/D-11 and the microprocessor-based relay protection device RZL-01 (LLC “SPE “RELSIS”) are also developed by Ukrainian companies.
4. The premises with the excitation system equipment were air-conditioned by MIDEA MFM-48 column air conditioners.
5. As part of the comprehensive testing and commissioning, thermal imaging surveys of the power thyristor sections and process oscillography were performed using the ADC-BS-8V-9C digital recorder of electrical parameters.
6. Digital models of the turbine generator were used to develop the field damping system and to adjust the current, voltage, and reactive power controllers.