Woodward QuickTrip User Manual

Manual 26815 QuickTrip Electro-Hydraulic Trip Block Assembly
Woodward 10
Because gas and steam turbines are often used in hazardous locations where flammable gases may be
present, the QuickTrip is designed to be mounted next to the turbine and is certified for use in Zone-1 or
Zone-2 (Class 1 or Class 2) hazardous locations.
When packaged with a Woodward ProTechTPS safety logic solver, the ProTechTPS performs the
required routine safety system diagnostic tests to verify unit operation while the turbine is on-line, and the
proof test trip time response monitoring and logging ensures the total turbine safety system can respond
fast enough to safely shutdown the turbine.
The total installed cost for this fully integrated trip block assembly is low because it has been completely
assembled and tested at the factory. This greatly reduces OEM and end-user fabrication time, installation
time, and testing time.
Dirt Tolerance
The QuickTrip is specifically designed for gas and steam turbine applications where turbine lube oil is
also used to power the hydraulic turbine control valve actuator(s). Gas and steam turbine applications can
be extremely challenging for hydraulic trip block assemblies as dirt, metal shavings, water, and other
contaminants (Babbitt, ammonia, etc.) are common in such oil systems. Also due to the high
temperatures at which turbines operate, turbine oil breakdown is common, resulting in the creation of a
sludge-type substance and the varnishing of internal system components. However, the QuickTrip is
designed to operate reliably within such challenging applications. Its corrosion-resistant materials, rotary
valve design, and self-cleaning ports allow it to operate in such applications without experiencing
undesirable sticking or dragging.
In the past, older style trip block assemblies utilized internal orifices and pressure gauges to verify
solenoid valve operation, causing many maintenance problems when applied in turbine lube-oil-powered
trip systems. Since the QuickTrip does not utilize problematic orifices or pressure gauges, maintenance is
reduced and system reliability improved.
Valve Status (local & remote)
Each valve solenoid accepts power for one or two (redundant) power sources and has the following
status indications to assist operators with understanding the status and health of each valve.
• Valve Open—Local LED (red)
• Valve Open—Limit Switch
• Valve Closed—Local LED (green)
• Valve Closed—Limit Switch
• Power Supply #1 Healthy—Local LED (blue)
• Power Supply #2 Healthy—Local LED (blue)
Redundancy/Availability
Designed for use in critical gas and steam turbine applications where turbine up time is important, the
QuickTrip uses three isolated solenoid valves designed to be driven by a triple modular redundant 2-out-
of-3 voting based safety logic solver. Each isolated solenoid valve uses redundant power supply inputs to
increase both system reliability and availability. Note: Only one power source is required to
power/energize each of the isolated solenoid valves.
On-Line Repairable
The QuickTrip’s modular design allows independent repair/replacement of each valve’s solenoid,
electrical module, and associated power supplies and wiring to increase both system reliability and
availability. Note: Only one power source is required to power/energize each of the isolated solenoid
valves.
Released

Woodward QuickTrip Specifications

General

Brand	Woodward
Model	QuickTrip
Category	Control Unit
Language	English