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Equipment Commissioning and Warranty Maintenance

Power Plant Commissioning Project Specifications and Personnel Allocation
Serial Number	Professional	Professional	Project Details
1	Electrical Engineering	Commissioning of Generator Protection System	1. External inspection of protective devices and power supply inspection.
			2. Verify that the protection device settings match the issued setting sheet.
			3. Perform static testing of the protective device to confirm that the trip values fall within the setpoint range and that the logic functions operate correctly.
			4. Secondary circuit verification to ensure protection, signaling, and control systems align with design drawings.
			5. Inspect the TV and TA secondary circuits to verify correct polarity and ensure proper grounding per design requirements. Measure the TA secondary circuit load to confirm the TA capacity meets design specifications.
			6. Verify circuit breaker and isolator secondary circuits, interlocking functions, local/remote operation tests, circuit breaker anti-jumping, and non-full-phase function transmission tests.
			7. Power-up inspection of the protection information substation equipment, secondary circuit inspection, channel debugging tests, and system integration tests.
			8. Perform a full transmission test to verify that the circuit breaker protection functions properly.
			9. Complete the trial operation record and finalize acceptance.
2	Electrical Engineering	Generator Synchronization System Commissioning	1. Verify that the setting values of the synchronous device match the setting value sheet.
			2. Confirm that the synchronous device has completed static testing, with logical functions operating normally and the start-up or lockout values within the permissible range of the set points.
			3. Verify the secondary circuit to confirm that the signal, operation, and control circuits match the design drawings.
			4. Inspect the TV secondary circuit to verify correct polarity and ensure grounding meets design requirements.
			5. Manual and automatic quasi-synchronization transmission tests. Quasi-synchronization and parallel operation.
			6. Conduct full-set transmission tests to verify normal operation of circuit breakers and synchronizing devices. Confirm alarm signals are functioning correctly. Collaborate with instrumentation engineers to verify DEH permitted control circuits and DCS start-up circuits. Verify isolator interlock circuits and confirm alarm signals are accurate.
			7. Complete the trial operation record and finalize acceptance.
3	Electrical Engineering	Commissioning of Generator Excitation System	1. Verify that the hardware configuration of the excitation system meets requirements.
			2. Verify that analog measurements for excitation system terminal voltage, current, active power, reactive power, rotor current, etc., are accurate. Confirm that functions and settings for over-excitation, under-excitation, and over-excitation limits (V/F limiter) are correct.
			2. Verify that analog measurements for excitation system terminal voltage, current, active power, reactive power, rotor current, etc., are accurate. Confirm that functions and settings for over-excitation, under-excitation, and over-excitation limits (V/F limiter) are correct.
			4. Inspect the demagnetization switch, demagnetization resistor, and overvoltage protection; all meet requirements. Verify correct circuit wiring, normal operation, logic, and display. Check that the power and timing for the demagnetization switch's closing and opening actions meet specifications.
			5. Inspect the fast-acting fuses within the rectifier, AC/DC disconnect switches, and other circuit wiring to ensure correct operation and accurate indications.
			6. Inspect the rotor grounding protection to ensure proper operation of the protection and normal alarm signals.
			7. Inspect the excitation system to ensure correct input and output signals, and perform secondary circuit transmission tests.
			8. Excitation System Open-Loop Low-Current Test
4	Electrical Engineering	Automatic Voltage Control System	1. Verify that the AVC device settings match the setting sheet and that the device version meets grid requirements.
			2. Confirm completion of static testing for the AVC device, verify that operating values fall within the permissible range, and ensure correct logic functionality.
			3. Verify the secondary circuits to confirm that the telemetry, signal, and command control circuits match the design drawings.
			4. Verify the TV and TA secondary circuits to confirm correct polarity and proper grounding.
			5. Channel Test. Verify normal communication with the master station.
			6. Test the entire drive system to verify that AVC regulation, locking, and other functions operate normally, and that alarm signals are accurate.
			7. Remote Transmission Testing
			8. Conduct a briefing on debugging procedures and organize guidance for operating personnel to inspect and adjust the AVC system.
			9. Test the trial run records and complete the acceptance inspection.
5	Electrical Engineering	Fault Recording System Commissioning	1. Verify that the device settings match the specified values on the setting sheet.
			2. Confirm completion of static testing for the fault recording device, verify that the trip values are within the set range, and ensure normal operation of the logic functions.
			3. Verify the secondary circuit to confirm that digital inputs, analog inputs, and signal loops match the design drawings.
			4. Verify the polarity of the TV and TA secondary circuits and ensure proper grounding. Measure the load on the TA secondary circuit and verify that the TA capacity meets design requirements.
			5. Remote Transmission Testing
			6. Verify that the alarm signal is correct.
			7. Complete the trial operation record and finalize acceptance.
6	Complete Electrical System	Complete Generator Set	1. Generator Short-Circuit Test
			2. Generator No-Load Test
			3. Generator Boosting
			4. Generator Excitation System No-Load Test
			5. Pseudo-Synchronization
			6. Generator Grid Connection
			7. Assist in turbine load shedding tests.
			8. Coordinate with the 72+24-hour trial operation
			9. Complete the trial operation record and finalize acceptance.
7	Electrical Engineering	Monomers and others	1. Generator Handover Test
			2. Generator Export Switch Handover Test
			3. Generator Excitation Handover Test
			4. PT and CT Handover Test
			5. Generator Cable Handover Test
			6. Generator Surge Arrester Handover Testing
			7. Generator and Main Transformer Protection Settings
			8. Electrical Handover Tests for Main Transformers
8	Turbine Engineering	Recirculating Water System	1. Circulating Water Inlet and Outlet Drive
			2. Circulating Water Pump Interlock Protection Transmission
			3. Commissioning of the circulating water system,
9	Turbine Engineering	Condensate System	1. Condensate system valves, interlock alarms, protection, start/stop, and other transmission tests
			2. Condensate Pump and System Trial Operation.
			3. Hydration System Commissioning
10	Turbine Engineering	Deaerated Feedwater System	1. Transmission tests for water pumps and systems, including valve interlock alarm protection and start/stop operations.
			2. Conduct trial operation of the sample water supply system.
11	Turbine Engineering	Vacuum System	1. Transmission tests for vacuum system valves, interlocks, alarms, protection devices, and start/stop functions
			2. Test run the vacuum pump and perform a vacuum test.
			3. Conduct vacuum tightness tests.
12	Turbine Engineering	Extraction System	1. Transmission tests for the steam extraction check valve's interlocking, alarm, and protection systems
			2. Deaerator and heater put into operation.
13	Turbine Engineering	Lubricating oil, pivot shaft oil, and turning gear system	1. Lubricating oil system single-unit trial operation completed
			2. Lubrication system and crank-over device valves, interlocks, alarms, protection, start-stop, and other transmission tests
			3. AC/DC Oil Pump Interlock Test, Flow Rate and Pressure Adjustment
			4. Motor Start-Up and Interlock Test
			5. Record the no-load current and turning-over current of the motor.
			6. Piston rod oil pressure and lifting height adjustment.
14	Turbine Engineering	Adjust Security System	1. Conduct transmission tests for security system valves, interlocks, alarms, and start-stop protection.
			2. Adjust the hydraulic system pressure and activate the accumulator.
			3. Adjustment of the safety oil system pressure.
			4. Throttle stroke adjustment and pull valve test
			5. Throttle Closure Time Measurement
			6. Measurement of Steam Extraction Quick-Close Valve Time
			7. Simulation Testing
15	Turbine Engineering	Auxiliary Steam System	7. Simulation Testing
			2. Auxiliary Steam Purge
			3. Auxiliary steam system put into operation.
16	Turbine Engineering	Shaft Seal System	1. Drive test for shaft seal system valves, interlocks, alarm protection, etc.
			2. Shaft Seal System Purge
			3. Temperature-Reducing Water Flushing of the Shaft Seal System
			4. Shaft seal heater commissioning and fan trial run.
17	Turbine Engineering	Complete Turbine Start-Up	1. Conduct local and remote gate valve tests to verify proper operation of the regulating gate and quick-closing valve.
			2. Low-pressure cylinder water injection temperature reduction test completed normally.
			3. Over-speeding test simulation.
			4. Main Protection Transmission Test for Steam Turbine
			5. Machine-Boiler Interlock Test
			6. Turbine Spin-Up
			7. Steam turbine trip test. Record coastdown time.
			8. Checking the No-Load Characteristics of the Control System
			9. Valve Seal Test
			10. Speed Test
			11. Load Shedding Test
			12. Vacuum Leak Test
			13. Analysis of Parameter Records Under Different Loads
18	Thermal Control Engineering	Distributed Control System	1. DCS Power Reception and Restoration
			2. Network Switching and Power Supply Switching Tests
19	Thermal Control Engineering	Computer Monitoring and Control System (DCS)	1. Configuration Check
			2. Parameter and Constant Value Verification
			3. Assist the DCS manufacturer in verifying the computer monitoring and control system wiring diagrams based on the I/O list from the system configuration.
			4. Refine the computer operation interface based on the wiring diagram.
20	Thermal Control Engineering	Sequential Control System (SCS)	1. Signal Loop Inspection
			2. Local and Remote Debugging of Actuators
			3. Interlock Logic Protection Transmission
			4. Functional Group and Subfunctional Group Transmission
21	Thermal Control Engineering	Analog Control System (MCS)	1. Verify that the circuit wiring is correct.
			2. Inspect the actuator and transmission system. Verify that the actuator's direction of motion, linearity, and deadband meet requirements.
			3. Set the measurement range and relevant computer coefficients for analog signals, and verify the correctness of all parameters.
			4. Static Simulation Testing of Analog Control Systems
23	Thermal Control Engineering	Turbine Supervision Instrumentation System (TSI)	1. Verify the signal circuit is correct.
			2. Powering up and restoring the device
			3. Coordinate with the construction team to install and commission the sensors.
			4. Range, Alarm, and Protection Setting Values
24	Thermal Control Engineering	Turbine Protection System (ETS)	1. ETS Protective Cabinet Commissioning
			2. Interlock Protection Transmission Test
			3. Verify the signal circuit is correct.
25	Thermal Control Engineering	Digital Electro-Hydraulic Control System for Steam Turbines (DEH)	1. Check signal circuit Correct
			2. Valve calibration.
			3. Static parameter check, configuration
			4. Static Simulation Testing
26	Thermal Control Engineering	Complete set	1. Adjustment Test of Steam Turbine Electro-Hydraulic Control System
			2. Commission thermal equipment and systems in stages: no-load, partial-load, and full-load.
			3. Analog Control System Adjustment Test
			4. Machine-Boiler Electrical Interlock Test
27	Thermal Control Engineering	Others	1. Electric gate, individual unit debugging for gate adjustment, point-to-point measurement
Note: Standard staffing: 1 Chief Engineer, 3 Turbine Operators, 2 Electrical Technicians, 2 Thermal Control Technicians. Extended staffing: 1 Chief Engineer, 1 Electrical Technician, 1 Thermal Control Technician, 2 Turbine Operators.

Power Plant Maintenance Personnel Allocation
Serial Number	Position	Quantity	Organize, coordinate, and manage
1	Project Manager	1	Implement a four-shift, three-rotation system. For each unit, organize shifts as follows: Turbine configuration: 2 main operators, 2 assistant operators Electrical configuration: 2 main operators, 2 assistant operators Rotate monitoring and inspection duties to better ensure stable operation and enhance accident response capabilities.
2	Turbine Shift Supervisor	8
3	Turbine Assistant Operator	8
4	Electrical Shift Supervisor	8
5	Electrical Deputy Shift Supervisor	8
6	Turbine Specialist	1	24-hour on-site guidance for operational support and routine maintenance.
7	Electrical Engineer	1
8	Thermal Control Specialist	1