The reactor coolant temperature is maintained at its demanded value during normal operational transients
|
Table 2.16 Control 5ysiem signals
|
Signal
|
Redundancy
|
Via
PPS
|
Control subsystems
|
|
l
|
Turbine power
|
Three per turbine
|
|
Cold leg temperature Power mismatch Load rejection Plant trip Turbine load
|
|
■>
|
N-16 power
|
4-fold
|
|
Pressuriser iesel
|
|
3
|
Power range flux
|
4-fold
|
к"*
|
Power mismatch Steam generator ieset Load rejection Plant trip
|
|
4
|
Steam flow
|
Three per SG
|
—
|
Steam generator Iesel Feed pump speed
|
|
5
|
Steam header pressure
|
3-fold
|
—
|
Feed pump speed Steam header pressure
|
|
6
|
Steam line pressure
|
Two per SG
|
—
|
Steam generator PORVs
|
|
7
|
Feedwater flow
|
four per SG
|
|
Steam generator level
|
|
8
|
Feed header pressure
|
3-fold
|
—
|
Feed pump speed
|
|
9
|
Cold leg temperature
|
Four per loop
|
|
Cold leg temperatures Pressuriser level Load rejection Plant trip
|
|
10
|
Pressuriser
|
4-fold
|
|
Pressuriser pressure
|
|
11
|
Pressuriser
level
|
4-fold
|
У
|
Pressuriser level
|
|
12
|
Steam generator level
|
Four per SG
|
У*
|
Steam generator level
|
|
13
|
Deaerator level
|
Three per DA
|
—
|
Feed pump speed
|
|
14
|
Grid frequency
|
Three per TG
|
—
|
Turbine load
|
|
by regulation of the insertion of the appropriate
banks of control rods.
