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E SQUARED POWER SYSTEMS INC.
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VOLTAGE REGULATOR RETROFITS

  • Equipment Base for Voltage Regulator Retrofits

    • General Electric Type EX2000 Digital Voltage Regulator System

    • Basler Electric Type DECS-300 Digital Voltage Regulator System

    • Basler Electric Type DECS-200 Digital Voltage Regulator System

    • Basler Electric Type DECS-15 Digital Voltage Regulator System

    • Basler Electric Type SR Voltage Regulators

 

 

will tailor its services to exactly fit your needs on Steam Turbine, Gas Turbine, Diesel and Hydro Generating systems.  These Voltage Regulator Retrofits, each complete with System O&M Training and thorough Documentation, can be offered as, but not limited to, one of these Packages;

  • Design Interface & Technical Direction

    • The Drawings are supplied (Elementaries, Connections, Interconnections), Demolition/Installation Details provided, Installation Materials and Equipment are specied (and supplied, if required) and Technical Direction provided to your Company's Installation Crews with guidance through all Start-up & Testing Activities.

  • Turnkey Installation

    • Just provide the System Outage and the crews and Engineers will provide the completed Upgrade Project.

 

 

Your Company's being paid $2,000 a MW-HR and your Generator can't operate because the Voltage Regulator has failed!

Can your business afford what this is going to cost in.........

  • Loss of Revenues?

  • Replacement part lead time?

  • Interruption in Service?

Utility and Industrial Power Plant personnel throughout the world have been making plans directed at avoiding these type of situations.

is your source for EFFECTIVE SOLUTIONS.

 

 

Retrofitting with Digital or Analog Type Solid-State Voltage Regulator Systems puts new life in older Generating Systems.  Types of Voltage Regulator Systems that are right for Retrofits include but are not limited to;

  • All Units with Rotating Brush Exciters

  • All Units with Rotating Brushless Exciters

  • General Electric Units with Amplidynes, SCT-PPT, SCPT, Bus-Fed, GDA Diactor, GFA-4

  • Westinghouse Units with WTA, WMA, PRX, Silverstat, Rototrol, BJ-30

  • Allis-Chalmers Units with Regulex

 

 

Reasons to retrofit with new Voltage Regulator Systems can include;

  • Lack of Spare or Renewal Parts

  • Automatic Voltage Regulator is Out-of-Service

  • High Maintenance Costs of Rotating Apparatus

  • System Requires Better Operating Performance / Better Response Time

  • Reliability Concerns

  • Power System Stabilizer Requirements

  • Personnel Attrition - Expertise has been lost

  • To Replace Obsolete Regulating Equipment

  • New Systems offer Communication Links for Control & Monitoring

  • To Take Advantage of Higher Efficiencies

  • To eliminate Operating Restrictions of the Older Equipment

  • To extend the MVAR Capabilities of the Generator via Better Protection & Limiter Circuitry

  • To Save Operating Costs via Performance, Reliability, Maintenance & Efficiency

 

 

's Voltage Regulator Retrofit Packages will include features and options such as;

  • VAR / Power Factor Regulation

  • Automatic Voltage Regulator 

  • Generator Voltage Softstart 

  • Modbus Communications 

  • Field Overcurrent Protection 

  • Off-Line Over-Excitation (OEL) Limit  

  • On-Line Over-Excitation (OEL) Limit 

  • On-Line Under Excitation (UEL) Limit 

  • Loss of Sensing Protection 

  • Bus Voltage Matching

  • Field Current Regulator

  • Regulator Automatic Tracking

  • Reactive Current Compensation

  • Line Drop Compensation

  • Generator Overvoltage Protection

  • Generator Undervoltage Protection

  • Volts Per Hertz Limiter

  • Field Overvoltage Protection

  • Real Time Metering (MW, MVAR, kV, etc.)

 

 

GE TYPE SCT-PPT VOLTAGE REGULATOR RETROFIT

17_300.jpg (12948 bytes)

(Generator Control Panel for GE Frame 7 Gas Turbine)

Contributions directly to the manufacturer, including 's expertise, field development and product support, have lead to our newest Voltage Regulator Retrofit offering;

Basler Type DECS-300 Digital Voltage Regulator System as a direct replacement for the GE Type SCT-PPT Voltage Regulators.

  1. The existing Power Magnetics of the Compound Source Excitation System remain, including the Saturable Current Transformers (SCT), the Power Potential Transformer (PPT), the Linear Reactors and the Power Diode Bridge(s).

  2. The new Voltage Regulator can be installed into the existing Generator Control Panel and Generator Auxiliary Compartment (GAC), or a new Generator Control Panel can be provided.

GCP_245.jpg (7472 bytes)

(New Generator Control Panel)

 

 

 

Recent Voltage Retrofit Projects Completed by include;

  • Turnkey Retrofit Project of a Voltage Regulator on a GE290 MVA Steam Turbine with a GE Type SCPT Static Excitation System;

    • Utilized a Basler Type DECS-300 Digital Voltage Regulator System interface directly with the Control Windings of the SCT Saturable Current Transformer.  Included a "Hot Backup" DECS-300 Control Module.

  • Turnkey Retrofit Project of Qty. (3) GE Amplidyne Voltage Regulator Systems of (2) 140 MVA GE Steam Turbines and (1) 190 MVA GE Steam Turbine;

    • Utilized the Basler Type DECS-300 Voltage Regulator Systems.

  • Turnkey Retrofit Project of the Voltage Regulators on Qty (6) GE Frame 7 Gas Turbines with GE Type SCT-PPT Static Excitation Systems;

    • Utilized the Basler Type DECS-300 Digital Voltage Regulator System interfaced directly to the Control Windings of the SCT Saturable Current Transformers.  All new equipment was retrofit directly into the existing Generator Control Panels and Generator Auxiliary Compartments.

  • Turnkey Retrofit Project of the Voltage Regulators on Qty (10) GE Frame 7 Gas Turbines with GE Type SCT-PPT Static Excitation Systems;

    • Utilized the Basler Type DECS-300 Digital Voltage Regulator System interfaced directly to the Control Windings of the SCT Saturable Current Transformers.  All new Voltage Regulator equipment was supplied in new Generator Control Panels, along with a new Generator Protection, Automatic Synchronizing and Monitoring Package.

  • Turnkey Retrofit Project of the Voltage Regulators on a GE Frame 5 Gas Turbine with a GE Type SCT-PPT Static Excitation System;

    • Utilized the Basler Type DECS-300 Digital Voltage Regulator System interfaced directly to the Control Windings of the SCT Saturable Current Transformers.  All new Voltage Regulator equipment was supplied in new Generator Control Panels, along with a new Generator Protection, Automatic Synchronizing and Monitoring Package.

  • Design Interface / Technical Direction Retrofit Project of Qty (2) Westinghouse 501 Gas Turbines;

    • Utilized Basler Type DECS-300 Digital Voltage Regulator Systems

  • Design Interface / Technical Direction Retrofit Project of Qty (5) Westinghouse 251 Gas Turbines;

    • Utilized Basler Type DECS-300 Digital Voltage Regulator Systems

  • Design Interface / Technical Direction Retrofit Project of Qty (2) Pratt & Witney FT-4 Twin-Pak Turbines;

    • Utilized Basler Type DECS-15 Digital Voltage Regulator Systems

  • Turnkey Retrofit Project of Qty (1) Pratt & Witney FT-4 Twin-Pak Turbine;

    • Utilized Basler Type DECS-15 Digital Voltage Regulator Systems

Call or email Jill Kelsic to request pricing information and/or Reference Contacts with regard to Voltage Regulator Retrofit Projects

Back to Generator Control & Protection Upgrades

 

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E2 Power Systems, Inc.
7961 Shaffer Parkway, Unit 2
Littleton, CO 80127
TEL 303/988-6659 FAX 303/988-5714
E-Mail esquared@e2psi.com

Copyright ©2004 E Squared Power Systems Inc. All rights reserved.