This standard specifies the content, methods and technical requirements that should be met for acceptance testing of steam turbine electro-hydraulic control systems in thermal power plants. This standard is applicable to the acceptance test of steam turbine electro-hydraulic control systems at all stages of new construction projects or technical renovation projects of thermal power plants with single unit capacity of 125MW to 600MW. The acceptance test of other capacity units and the acceptance test after major overhaul of the unit can also be performed with reference; the acceptance test of the steam-driven feed water pump steam turbine electro-hydraulic control system can be performed with reference to the relevant parts of this regulation.
DL/T 656-2006 Referenced Document
DL/T 657 Code for acceptance test of modulating control system in fossil fuel power plant*, 2015-07-01 Update
DL/T 659 Acceptance test procedure for decentralized control system in thermal power plant*, 2016-02-05 Update
DL/T 701 Terminology of Thermal Automation in Thermal Power Plants*, 2022-05-13 Update
DL/T 711 Test Guidelines for Steam Turbine Regulation and Security Systems
DL/T 656-2006 history
2016DL/T 656-2016 Acceptance test procedure for steam turbine control and protection system in thermal power plant
2006DL/T 656-2006 Code for acceptance test of turbine control system in fossil fuel power plant
1998DL/T 656-1998 Code for on-line acceptance test of turbine control system in fossil fuel power plant