Power Plant Station With Globe Style Control Valve - GE Becker VRP-SB-PID Series Instruction Manual

Example Application #4

Power Plant Station with Globe Style Control Valve

(2" and 3" Size)
2" and 3" Globe Valves are used with VRP-PID controllers
without a low flow start up run.
For this particular setup one controller is used as a monitor
and another as the operating regulator. Monitor serves as a
security device that protects power plant in case of a failure
in the regulator.
DERIVATIVE
S=2
FLOW
SPRING TO CLOSE GLOBE VALVE
KEY
(1)
OUTPUT PRESSURE
SENSING PRESSURE
(1) ALL LINES ARE SEPARATE, INTERSECTING LINES DO NOT IMPLY CONNECTIONS
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VRP-SB-PID-40
REVERSE ACTING
HIGH GAIN
(SMALL RINGS)
INTEGRAL=12
DEAD BAND = 0
MONITOR REGULATOR
Recommended Application:
Small Power Plants (200 MW & smaller)
VRP-SB-PID-40
DIRECT ACTING
DERIVATIVE
S=3
SPRING TO OPEN GLOBE VALVE
WORKING REGULATOR
Becker VRP-SB-PID Series Natural Gas Controllers Instruction Manual | 18
INTEGRAL=7
HIGH GAIN
(SMALL RINGS)
DEAD BAND = -1/4
TO COMPRESSOR
TURBINE