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CHAPTER 6: TRIP AND RELIEF VALVE TESTING - Coggle Diagram
CHAPTER 6:
TRIP AND RELIEF VALVE TESTING
TRIP
Fault or error detect by the circuit breaker
to protect an electrical circuit from damage caused by overload or short circuit.
SAFETY VALVE
a valve mechanism for the automatic release of a gas
Used on steam boilers during the industrial revolution
TRIP INITIATION
LEVEL
vessel fill with water
fill the isolated level bridle
PRESSURE
Using a standard calibration pump, pressurise the instrument
TEMPERATURE
At the field intersection, inject a signal
FLOW
Using a standard calibration pump, pressurize the various pressure cells
HAND SWITCH
Push button
RELIEF VALVE
To control or limit the pressure in a system.
2 Catagories : spring-operated , rupture discs
SOER
Sequence of Event Recorder
wide application in power generation and process plant
an intelligent stand-alone micro processor based system
TRIP TESTING
Confirm trip
Confirms the correct operation of the sequence of events recorder
Confirms the correct operation of bypass switches, both control room and maintenance
Confirms the correct trip actions as detailed in the trip schedule and logic diagrams
RELIEF VALVE TESTING
Visual check of any damage during pipe erection
reinstall on site with permanent gaskets.