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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 valve servos in critical applications.
Product Type

About 8918-116

Steam Turbine

  • Application Notes
  • Brochure
  • Product Specification
  • Software Manual
  • Technical Manual
  • Software
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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Application Notes
Name
Item Number
Language
CPC-II UPGRADE PROGRAM (CHINESE)
ZH51444
Chinese
CPC-II UPGRADE PROGRAM
51444
English
Brochure
Name
Item Number
Language
CPC-II FLYER
51353
English
Product Specification
Name
Item Number
Language
CPC-DX (CPC DUAL TRANSFER SKID)
03421
English
CPC-II CURRENT-TO-PRESSURE CONVERTER
03352
English
CPC-II CONVERSOR DE CORRENTE PARA PRESSÃO (PORTUGUESE)
PT03352
Portuguese
CPC-II CURRENT-TO-PRESSURE CONVERTER (CHINESE)
ZH03352
Chinese
Technical Manual
Name
Item Number
Language
CPC-II ED (ENHANCED DYNAMICS) (RUSSIAN)
RU26615
Russian
CPC-II ED CURRENT-TO-PRESSURE CONVERTER WITH ENHANCED DYNAMICS
26615
English
CPC-DX CURRENT TO PRESSURE CONVERTER DUAL TRANSFER SKID
26758
English
CPC-DX ON-LINE REPLACEMENT PROCEDURE
26824
English
CPC-II CURRENT-TO-PRESSURE CONVERTER WITH ENHANCED DYNAMICS (JAPANESE)
JA26615
Japanese

Software

Name
Item Number
Revision
CPC-II PC Service Tool
9927-1885
E
X
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