MAVR upgrade

Product catalog summary

Overview: The document outlines the upgrade from MAVR to PRISMIC® digital AVR systems, specifically the A30 and A32 models, for the global power industry. It highlights the features, benefits, and installation procedures of the PRISMIC® excitation controllers.

Key Features of PRISMIC® A30 and A32:

Enhanced control of response settings through digital adjustments.
Windows-based Human Machine Interface (HMI) for easy commissioning.
SCADA system compatibility for adjustable AVR settings via serial link or Ethernet (A32 only).
Hot Standby channel and digital control eliminating motorized potentiometers.
Switching between power factor, voltage, and VAr control via external inputs.
Improved Volts/Hertz limitation and display of voltage overshoot and settling time.
Integrated Power System Stabilizer and rotor earth fault receiver (A32 only).

Upgrade Package Includes:

PRISMIC® A30 and A32 Excitation Controllers.
MAVR conversion wiring loom.
HMI software and communication cables (PC required).
Operator and maintenance manual.

Installation and Commissioning:

Removal of existing MAVR unit.
Installation of new AVR unit with auxiliary wiring.
Electrical commissioning of the excitation system.

Product Comparison:

PRISMIC® A30 and A32 offer improved voltage regulation accuracy (+/- 0.25% for A32) compared to MAVR (+/- 0.50%).
Both models support single or three-phase VT sensing and continuous field current of 20 Amps.
Remote set points are managed via digital input rather than motorized potentiometers.

Contact Information: The document provides contact details for BRUSH Aftermarket offices in the USA, UAE, Malaysia, UK, Netherlands, and Czech Republic for further inquiries.

Catalog excerpts

UPGRADE MAVR TO PRISMIC® DIGITAL AVR UPGRADE www.brush.eu Parts and Service for the Global Power Industry

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MAVR TO PRISMIC® DIGITAL AVR UPGRADE — PRODUCT COMPARISON BRUSH PRISMIC excitation controllers benefit from constant development and improvement. Enhancements in power electronics and digital control have given the ability to create effective solutions for today’s demanding environments. Providing a clear upgrade path for users of MAVR systems, a preassembled and tested package has been developed, so that existing generator control panels can be kept with the control unit being quickly replaced, reducing generator downtime. Any upgrade can be scheduled to coincide with planned maintenance outages....

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BRUSH MAVR BRUSH MAVR Flux Limiting VOLTAGE/pf Control Diode failure detection Over and under excitation limiters/ Monitors Remote communications Data logging STATOR CURRENT LIMITER Rotor earth Fault Indication External unit – PRISMIC® T20 INTEGRATED POWER SYSTEM STABILIzER Negative Field Forcing Remote SET POINTS Motorized Potentiometer Commissioning HMI VT Sensing Continuous Field Current Voltage regulation accuracy Single or three phase Single or three phase Single or three phase

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BRUSH Aftermarket 15110 Northwest Freeway, Suite 150, Houston, Texas 77040, USA T +1 281 580 1314 F +1 281 580 5801 E [email protected] BRUSH Aftermarket P.O. Box 111209, Abu Dhabi, United Arab Emirates T + 971 4362 6391 F + 971 2550 1920 E [email protected] BRUSH Aftermarket Lot 7 Jalan Majustret U1/26, Hicom Glenmarie Ind. Park, 40150 Shah Alam, Selangor DE, Malaysia T + 60 3 705 3736 F + 60 3 703 9625 E [email protected] BRUSH Aftermarket Falcon Works, Nottingham Road, Loughborough, Leicestershire, LE11 1EX, United Kingdom T + 44 (0) 1509 611511 F + 44 (0) 1509 612436 E [email protected]...

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