trip Turbine trips 2 Condensate pump and feed pump trip Turbine trips Temperature and pressure in the primary loop are increasing 3 Relief valve in the pressurizer opens OPEN ID: 616191
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Slide1
1Slide2
- Condensate pump and feed pump
trip!
Turbine trips!
2Slide3
- Condensate pump and feed pump
trip!
Turbine trips!
Temperature and pressure in the primary loop are increasing!
3Slide4
- Relief valve
in the pressurizer opens !
OPEN
4Slide5
- Control rods are inserted !
OPEN
INSERTED
5Slide6
Pressure in the primary loop is decreasing !
INSERTED
6
OPENSlide7
- Emergency feed pump is
now in operation !
INSERTED
OPERATION
7
OPENSlide8
- Relief valve is closed
!
INSERTED
OPERATION
8Slide9
- Pressure in the primary loop is decreasing
!
INSERTED
OPERATION
9Slide10
Water level in the secondary side of stream generator is decreasing
!
INSERTED
OPERATION
10Slide11
Pressure in the primary loop is decreasing !
INSERTED
OPERATION
11Slide12
INSERTED
OPERATION
12
Water level in the pressurizer is gradually increasing !
Pressure in the primary loop is decreasing ! Slide13
INSERTED
OPERATION
13
NO WATER
There is no water in the secondary side of the steam generator !Slide14
INSERTED
OPERATION
14
NO WATER
Water level in the pressurizer is gradually increasing !
Pressure in the primary loop is decreasing ! Slide15
INSERTED
OPERATION
15
NO WATER
Why is pressure in the primary loop decreasing even though water level is increasing?Slide16
INSERTED
OPERATION
16
NO WATER
Water level in the pressurizer is gradually increasing !
Pressure in the primary loop is decreasing ! Slide17
- Emergency core cooling system is
now in operation because of the low pressure in the primary loop !
INSERTED
OPERATION
WATER IS INJECTED
17
NO WATERSlide18
Water level in the pressurizer is increasing !
Pressure in the primary loop is decreasing !
INSERTED
OPERATION
WATER IS INJECTED
18
NO WATERSlide19
It might be dangerous if the amount of water is too much in the primary loop…
INSERTED
OPERATION
WATER IS INJECTED
19
NO WATERSlide20
Water level in the pressurizer is increasing !
Pressure in the primary loop is decreasing !
INSERTED
OPERATION
WATER IS INJECTED
20
NO WATERSlide21
Emergency core cooling system is
operated
by
the manual mode from now !
INSERTED
OPERATION
WATER IS INJECTED
21
NO WATERSlide22
Water level in the pressurizer is increasing !
Pressure in the primary loop is decreasing !
INSERTED
OPERATION
WATER IS INJECTED
22
NO WATERSlide23
One
of two e
mergency core cooling systems is manually stopped and the injected water from the other one is reduced.
INSERTED
OPERATION
WATER IS INJECTED
23
NO WATERSlide24
Water level in the pressurizer is increasing !
Pressure in the primary loop is decreasing !
INSERTED
OPERATION
WATER IS INJECTED
24
NO WATERSlide25
- Water level is reaching the top
of the
pressurizer !
INSERTED
OPERATION
WATER IS INJECTED
25
NO WATER
FULL
WATERSlide26
- Water in the pressurizer is full, but measurement data at other positions in the primary loop do NOT show the
solid state…
INSERTED
OPERATION
WATER IS INJECTED
26
NO WATER
FULL
WATERSlide27
INSERTED
OPERATION
WATER IS INJECTED
27
NO WATER
FULL
WATER
Water level is at the top
of the
pressurizer !
Pressure of the primary loop is decreasing !Slide28
Water level is at the top
of the
pressurizer !
Pressure of the primary loop is decreasing !
Water in the containment sump is moved to the auxiliary building.
INSERTED
OPERATION
WATER IS INJECTED
28
NO WATER
FULL
WATERSlide29
The block values on the emergency feed water line pump have been CLOSED ! Why !
Now it is OPEN !
INSERTED
OPERATION
WATER IS INJECTED
29
FULL
WATER