ASME PTC 29-2005 provides detailed guidelines for testing the performance of wet scrubbers, including:
From full load, the generator breaker is tripped (or a large load bank is disconnected). The turbine accelerates.
: Gate/blade relationship for reaction turbines and needle/deflector relationship for impulse turbines. 📖 Related Standards
Beyond pure speed control, the standard covers essential mechanical relationships within the turbine-generator unit:
| Standard | Scope | Relation to PTC 29-2005 | |----------|-------|--------------------------| | | Hydraulic Turbines (performance, efficiency) | Complementary – PTC 18 covers turbine efficiency; PTC 29 covers governing dynamics. | | IEC 60308 | Hydraulic turbine governing systems testing (international) | Similar to PTC 29-2005 but with some differences in test tolerances and terminology. Many plants accept either. | | IEEE 125 | Recommended practice for generator governor testing | Focuses on thermal and hydro governors but less detailed on hydraulic specifics. | | NFPA 70 (NEC) | Electrical safety | PTC 29 assumes electrical safety but does not replace NFPA. |