Description
8915-880 Digital governor system
8915-880 Digital governor system
Module Clips Drive controller servo motor
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9907-1349
CPC-II
10 BAR, ZONE 1, SIMPLEX, ED, RU
CPC-II 10 bar, Zone 1, simplex, enhanced dynamics, Russian certification version (current-to-pressure converter, generation II) is an electrohydraulic pressure-regulating valve control designed for use in positioning single-acting steam turbine valve servos. This
FEATURES & FUNCTIONALITY
Woodward’s second generation current-to-pressure converters (CPC-II) 10 bar, Zone 1, redundant version with enhanced dynamics and Russian certifications are electrohydraulic pressure regulating control valves used to position single-acting steam turbine valve servos/actuators. The CPC-II solves one of the industries number one reliability issue of oil contamination affecting equipment uptime and performance.
The CPC-II accepts 4-20 mA pressure demand signals and accurately controls oil pressure to precisely position single-acting steam turbine governor-valves. Precise and stable steam valve control directly relates to improved steam turbine speed and load control and reduced system mechanical wear.
Features:
Oil contamination resistant (ISO20/16)
Precise fluid pressure control
Stable & linear valve control
Included valve linearization table (Full range <0.2%)
Redundant inputs/sensors for critical applications
Accepts signals from redundant controllers
Redundant (dual) CPCs (Master/Slave) functionality
Standard mounting and hydraulic connections
Self-cleaning valve algorithm
Status & health indication (Pressure transducer health, input demand signal health, internal unit health, Input power source quality)
Control pressure readout
Software service tool with trending
Certified for North American Hazardous Locations
Compliant with applicable CE Directives—ATEX, Machinery, PED, and EMC
Certified for use in explosive atmospheres within the Russian Federation
8918-116
CPC-DX
Redundant CPC-II Skid 10 BAR
CPC-DX 10 bar, Zone 2, redundant with enhanced dynamics dual-transfer current-to pressure converter skid enables on-line (automatic and manual switching) service capability for uninterrupted operation to position single-acting steam turbine
FEATURES & FUNCTIONALITY
Woodward’s redundant skid Current to Pressure Converters (CPC-DX) are electrohydraulic pressure regulating control valves used to position single-acting steam turbine valve servos/actuators.
The CPC-DX redundant version accepts 4-20 mA pressure demand signals and accurately controls oil pressure to precisely position single-acting steam turbine governor-valves.
Precise and stable steam valve control directly relates to improved steam turbine speed and load control and reduced system mechanical wear.
The CPC-DX Redundant version integrated design allows for a cost effective purchase and installation of one hydraulic assembly which provides all the isolation and support benefits of fully segmented current-to pressure converters. Hand isolation valves are included within the package to give users the capability to easily repair or replace each individual current-to-pressure converter.
Both automatic and manual transfer logic are available for use within this skid assembly, depending on the system’s design. This skid’s automatic transfer logic simplifies system design as it requires no external relay/switching logic to operate, minimizing both converter-to-converter and control-to-converter interface wiring. The CPC’s configurable alarm/shutdown logic allows users to easily configure which system conditions force an automatic transfer from the master CPC to the slave CPC.
Manual transfer functionality is also available for systems where users desire to switch between pressure converters via external logic or hand switches. Master selection discrete inputs are utilized to allow users to easily and quickly select the desired control CPC. Integrated oil pressure gauges allow users to visually understand which converter is in control and verify the skid’s output oil header pressure level. Discrete output relay contacts can also be connected to system indication (lights, lamps, plant DCS) to assist with system health monitoring.
Features:
Dirt resistant
No small passages to plug
111 N (25 lb.) rotary chip shear force
Self-cleaning valve design
Automatic & manual switching
Fast switching times
Minimizes system disturbances
Accurate pressure control
Increased reliability
High pressure signal select design
On-line repairable
Master/Slave logic
Included isolation valves
With tag-out lock protection
Large pressure gauges
Remote Master/Slave Indication
Compact size
10 and 25 bar models available
Certified for Division 2 and Zone 2 Hazardous locations
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1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
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Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
