Upload
walid-salama
View
1.218
Download
9
Embed Size (px)
DESCRIPTION
Citation preview
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
1
5. GENERATOR AUXILIA5. GENERATOR AUXILIARY SYSTEM AND CONTRRY SYSTEM AND CONTR
OL EQUIPMENTOL EQUIPMENT
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
2
CONTENTSCONTENTS5.1 HYDROGEN GAS CONTROL SYSTEM5.2 SHAFT SEAL OIL SYSTEM5.3 STATOR COOLING WATER SYSTEM5.4 GENERATOR AUXILIARIES MAINTENANCE5.5 CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES5.6 GENERATOR CONTROL/PROTECTION EQUIPMENT 5.6.1 GENERATOR PROTECTION SYSTEM 5.6.2 GENERATOR CONTROL/SYNCHRONIZING SYSTEM
CONTENTS
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
3
5.1 HYDROGEN GAS CONTROL SYSTE5.1 HYDROGEN GAS CONTROL SYSTEMM
HYDROGEN GAS CONTROL SYSTEM
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
4
CO2 Manifold
H2 Manifold
Machine GasPressureRegulator
Generator
ROTOR
HYDROGEN GAS CONTROL SYSTEMHYDROGEN GAS CONTROL SYSTEM
CO2 Distribution Tube
H2 Distribution Tube
H2 DetrainingSection
Gas Flow Sight
Liquid Detector
Vent H2 Gas Dryer
HYDROGEN GAS CONTROL SYSTEM
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
5
SHAFT SEAL OIL SYSTEM
5.2 SHAFT SEAL OIL SYSTEM5.2 SHAFT SEAL OIL SYSTEM
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
6
GENERATOR SHAFT SEALING OIL SYSTEMGENERATOR SHAFT SEALING OIL SYSTEM
SHAFT SEAL OIL SYSTEM
VENT
VACUUM TANK
VP
RSOP
ESOP
MSOP
PRESSUREREGULATINGVALVE
GAS DRYER
FLOATTRAPAIR
DETRAININGSECTION
TO TURBINELUBRICATINGOIL FEED LINE
FROM TURBINELUBRICATINGOIL FEED LINE
VENT
CO2 MANIFOLD
H2 MANIFOLD
MACHINE GASPRESSUREREGULATOR
GENERATOR
ROTOR
SEAL OILENLARGEMENT
M
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
7
SHAFT SEAL OIL SYSTEM
SHAFT SEAL OIL UNITSHAFT SEAL OIL UNITRelief Valve For MSOP
Main Seal Oil Pump
Terminal Box
Vacuum Pump
Recirculation Seal Oil Pump
Reduction Gear
Emergency Seal Oil Pump
Relief Valve For ESOP
Seal Oil Gauge Panel
Oil Filter
Differential Pressure Valve
Vacuum Tank
Level SwitchLevel Gauge
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
8
STATOR COOLING WATER SYSTEM
5.3 STATOR COOLING WATER SYSTEM5.3 STATOR COOLING WATER SYSTEM
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
9
STATOR COOLING WATER SYSTEM STATOR COOLING WATER SYSTEM
STATOR COOLING WATER SYSTEM
BOTTOM BAR
TOP BAR
GENERATOR
STORAGETANK
SCWP-A
SCWP-B
COOLER-A
COOLER-B
TEMPERATURECONTROL VALVE
FILTER
PRESSURECONTROLVALVE
DEIONIZER
MAKE-UPWATER
VENT
COOLER-A
COOLER-B
GEN AUX. CONSTRUCTION
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
10
STATOR COOLING WATER SYSTEM
STATOR COOLING WATER UNITSTATOR COOLING WATER UNIT
Storage Tank
PressureControlValve
TemperatureControlValve
Storage TankLevel Switch
Cooling Water
Outlets
Cooling Water Inlets
SCW Coolers
Stator Cooling Water Pumps
Deionizer
Filter
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
11
GENERATOR AUXILIARIES MAINTENANCE
5.4 GENERATOR AUXILIARIES MAINTE5.4 GENERATOR AUXILIARIES MAINTENANCENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
12
1. Daily Gas Control System Inspection and Tests 1. Daily Gas Control System Inspection and Tests
(1) Check the differential pressure of the duplex strainer in the seal oil feed line. (2) Check the differential pressure between the machine gas and the seal oil. (3) Check the oil level in the vacuum tank and float trap.
(4) Check the liquid detector sight glasses.
(5) Check the hydrogen purity and flow meter indications.
(6) Check the operation of the seal oil vacuum pump and check for excessive accumulation of moisture.
(7) Check all the indicating instruments.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
13
2. Weekly Gas Control System Inspection and Tests2. Weekly Gas Control System Inspection and Tests
(1) Start and run the emergency seal oil pump. (2) Test the visual and/or audible alarm system.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
14
3. Three to Six Monthly Gas Control System Inspection 3. Three to Six Monthly Gas Control System Inspection and Testsand Tests
(1) Calibrate the gas analyzer.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
15
4. Six to Twelve Monthly Gas Control System Inspection 4. Six to Twelve Monthly Gas Control System Inspection and Testsand Tests
(1) Check the calibration and operation of all the alarm devices and/or contacts. (2) Check the calibration of all the indicating instruments.
(3) Test the hydrogen valves and the packing for leakage.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
16
5. Gas Control System Maintenance During Scheduled Generator5. Gas Control System Maintenance During Scheduled Generator ShutdownShutdown
(1) Drain and clean the seal oil strainer. (2) Inspect the motors.
(3) Inspect the gear and vacuum pumps.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
17
H2 GAS DRYERH2 GAS DRYER
P.No
1
2
3
4
5
6
7
8
9
10
11
Description
Bellows Valve
Body
Thermostat
Sheathed Heater
Desiccant
Bellows Valves
Drain Tank
Desiccant Casing
Name Plate
Control Box
Name Plate
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
18
HYDROGEN GAS DRYER TROUBLESHOOTINGHYDROGEN GAS DRYER TROUBLESHOOTING
Symptom Potential Cause CountermeasuresHydrogen Gas Dryer Operation Feasibility
Leak of hydrogen
Abnormal rise in temperature of desiccant during regeneration operation
Temperature fails to rise even with heater switched on
Loose bolts ;
Deteriorated gasket
Maladjusted thermostat ;
Defective thermostat
Defective wiring or connections
Heater Breakdown
Retighten bolts ;
Replace gasket
Readjust thermostat after inspecting electrical wiring ;
Replace thermostat
Inspect connections,check wiring inside
Replace heater
Possible ;
Close dryer inlet and outlet valves and disconnect from gas system
As above
As above
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
19
1. Daily Shaft Seal Oil System Inspection and Tests1. Daily Shaft Seal Oil System Inspection and Tests
(1) Check the difference between the seal oil pressure and generator hydrogen pressure. (2) Check the oil level in the vacuum tank and float trap. (3) Check the operating condition of the vacuum pump, and discharge the drain in the oil separator until the oil level reaches the normal operation level.
(4) Check all the indicating instruments.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
20
2. Weekly Shaft Seal Oil System Inspection and Tests2. Weekly Shaft Seal Oil System Inspection and Tests
(1) Test the start of the emergency seal oil pump. (2) Test the visual and/or audible alarm system.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
21
3. Three Six Monthly Shaft Seal Oil System Inspection and Tests3. Three Six Monthly Shaft Seal Oil System Inspection and Tests
(1) Change the lubricating oil in the vacuum pump and reduction gears.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
22
4. Six to Twelve Monthly Shaft Seal Oil System Inspection 4. Six to Twelve Monthly Shaft Seal Oil System Inspection and Testsand Tests
(1) Check the calibration and operation of all the alarm devices and/or contacts. (2) Check the calibration of all the indicating instruments.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
23
5. Shaft Seal Oil System Maintenance During Scheduled 5. Shaft Seal Oil System Maintenance During Scheduled Generator ShutdownGenerator Shutdown
(1) Drain and clean the seal oil strainer. (2) Inspect the main and recalculating seal oil pumps and motors. (3) Inspect the emergency seal oil pump and motor. (4) Inspect the vacuum pump and geared motor. (5) Inspect and clean the inside of the vacuum tank and float trap, and also inspect the operation of the float valve and switch. (6) Clean the inside of the hydrogen detraining tank and air detraining tank. (7) Carry out the oil flushing of the shaft seal oil system of the generator. (8) Confirm that the seal oil is at the normal level.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
24
1. Daily Stator Cooling Water System Inspection and Tests1. Daily Stator Cooling Water System Inspection and Tests
(1) Observe all the indicating values and compare them with the normal operating conditions. (2) Check the differential pressure between the machine gas and the cooling water. (3) Check the water level in the storage tank.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
25
2. Weekly Stator Cooling Water System Inspection and Tests2. Weekly Stator Cooling Water System Inspection and Tests
(1) Alternate use of the in-service and standby stator cooling circulation pumps. (2) Check the pressure drop across the cooling liquid filters.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
26
3. Three to Six Monthly Stator Cooling Water System Inspection3. Three to Six Monthly Stator Cooling Water System Inspection and Testsand Tests (1) Check the quality of the stator cooling liquid. (2) Check the temperatures and thermocouples at the cooling liquid outlet connections.
(3) Calibrate the conductivity instrument.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
27
4. Six to Twelve Monthly Stator Cooling Water System Inspection4. Six to Twelve Monthly Stator Cooling Water System Inspection and Testsand Tests (1) Check the calibration of the automatic interlock devices. (2) Check the turbine interlock thermometer for high cooling water temperature.
(3) Check the calibration and operation of all alarm devices and/or contacts.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
28
5. Stator Cooling Water System Maintenance During5. Stator Cooling Water System Maintenance During Scheduled Generator ShutdownScheduled Generator Shutdown (1) Clean the flow meter tubes. (2) Inspect the stator cooling water pumps. (3) Replace the filter elements if necessary.
(4) Carry out the water flushing of the stator cooling water system of the generator.
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
29
STATOR COOLING WATER FILTER MAINTENANCESTATOR COOLING WATER FILTER MAINTENANCE
Detailed View Of Filter ElementFilter Element
AA
Section A-A
Name of partCasingUpper coverSeparator plateSpringRetainerFilter elementCenter postSpacerGasketBoltNutLifter armLifter handleLegAir vent valveDrain valve
No.12345678910111213141516
GENERATOR AUXILIARIES MAINTENANCE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
30
WATER OUTLET
STATOR COOLING WATER STATOR COOLING WATER DEIONIZER MAINTENANCEDEIONIZER MAINTENANCE
DEIONIZER RESIN
DETAILED VIEW OF DISTRIBUTOR DETAILED VIEW OF COLLECTOR
WATER INLET
“B”“A”
GENERATOR AUXILIARIES MAINTENANCE
RESIN DISCHARGE
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
31
5.5 CONTROL/MONITORING EQUIPMEN5.5 CONTROL/MONITORING EQUIPMENT FORT FOR
GENERATOR AUXILIARIESGENERATOR AUXILIARIES
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
32
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
GENERATOR AUXILIARY CONTROL PANELGENERATOR AUXILIARY CONTROL PANEL
H2 & Shaft Seal Oil System
Stator Water System
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
33
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
ARRANGEMENT OF GACPARRANGEMENT OF GACP
SCW System Pump Running Condition
FRONT VIEW(WITH DOORS OPEN)
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
34
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
ARRANGEMENT OF GACPARRANGEMENT OF GACP
H2/CO2 Gas Purity Indicator
Seal Oil System Pump Running Condition
FRONT VIEW(DOOR OPENING)
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
35
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
STATOR COOLING WATER MEASURING RACKSTATOR COOLING WATER MEASURING RACK
Generator Inlet SCW Pressure Gauge
SCWP Discharge Pressure Gauge
SCW Flow Transmitter
SCWP Discharge Pressure Transmitter
Generator Inlet SCW Pressure Switches
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
36
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
H2 GAS MEASURING RACK
H2 Gas Pressure Gauge
H2 / CO2 Gas Flow Meter
H2 / CO2 Gas Purity Meter
H2 Gas Pressure Transmitter
H2 / CO2 Gas Filter
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
37
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
SEAL OIL GAUGE PANELSEAL OIL GAUGE PANELSeal Oil Vacuum Tank Pressure Gauge
MSOP Discharge Pressure Gauge
Seal Oil Feed Pressure Gauge
Seal Oil Vacuum Tank Pressure Transmitter
MSOP Discharge Pressure Switch
Seal Oil Differential Pressure Transmitter
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
38
CONTROL/MONITORING EQUIPMENT FOR GENERATOR AUXILIARIES
STATOR COOLING WATER AUXILIARY PANELSTATOR COOLING WATER AUXILIARY PANEL
SCW Pressure Controller
Generator Inlet SCW Conductivity Transducer
Generator Outlet SCW Conductivity Transducer
Deionizer Outlet SCW Conductivity Transducer
SCW Temperature Controller
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
39
GENERATOR PROTECTION SYSTEM
5.6.1 GENERATOR PROTECTION SYST5.6.1 GENERATOR PROTECTION SYSTEMEM
5.6 GENERATOR CONTROL/PROTECTI5.6 GENERATOR CONTROL/PROTECTION EQUIPMENTON EQUIPMENT
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
40
GENERATOR PROTECTION SYSTEM
GENERATOR PROTECTION RELAY PANELGENERATOR PROTECTION RELAY PANEL
FRONT VIEW
Protection Relays
Lock-Out Relays
Test Terminals
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
41
GENERATOR PROTECTION SYSTEM
FUNDAMENTAL PROTECTIVE FUNCTIONS FOR GENERATORFUNDAMENTAL PROTECTIVE FUNCTIONS FOR GENERATOR
DEVICE No.
21
24
32
40
46
59
59N
60FL
81
87
51V
Description
Phase Distance
Over-excitation Protection(V/F)
Generator Reverse Power Protection
Generator Loss of Field Protection
Generator Negative Phase Sequence Protection
Generator Phase Over Voltage Protection
Generator Ground Fault Protection
VT Fuse Failure Supervision
Under/Over Frequency Protection
Generator Differential Protection
Generator Over Current Protection
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
42
5.6.2 GENERATOR CONTROL/SYNCHR5.6.2 GENERATOR CONTROL/SYNCHRONIZING SYSTEMONIZING SYSTEM
GENERATOR CONTROL/SYNCHRONIZING SYSTEM
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
43
GENERATOR CONTROL/SYNCHRONIZING SYSTEM
GENERATOR CONTROL / SYNCHRONIZING PANELGENERATOR CONTROL / SYNCHRONIZING PANELSynchronizing scope
Meters For Synchronizing Operation
Meters For Monitoring Generator
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
44
GENERATOR CONTROL/SYNCHRONIZING SYSTEM
FUNDAMENTAL FUNCTIONS OF THE GENERATOR FUNDAMENTAL FUNCTIONS OF THE GENERATOR CONTROL/SYNCHRONIZING PANELCONTROL/SYNCHRONIZING PANEL
1.Monitoring Electrical Parameters of the Generator
- Current
- Voltage
- Power Output
- Reactive Power Quantities
- Power Quantities(Watt Hour)
-Frequency
-Power Factor
2.Generator Synchronizing Operation
- For Closing The Generator Circuit Breaker and EHV Circuit Breakers
Not Monitored Here
Not Monitored Here
Not Monitored Here
Classroom Lecture Series for Steam Turbine Generator TOSHIBA
GENERATOR AUX.
45
END END GENERATOR AUXILIARY SYSTEM AND GENERATOR AUXILIARY SYSTEM AND
CONTROL EQUIPMENTCONTROL EQUIPMENT