Motor Control System Retrofits
A Regal Brand
Retrofit: The Smart Alternative Extend the life of your motor and controls without the expense of replacing the entire structure by choosing to retrofit with Benshaw. Retrofit Benefits • Increase expected lifetime
• Enhanced reliability
• No or low downtime of critical
• Minimization of downtime including
equipment during retrofit work
• Capital costs are minimal • New technology • Optimized investment • Speed of execution • Improved safety standards
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shutdowns/outages
• No need to change location— foundation is not disturbed
• No need for re-routing of power/ control cables
• Easy procurement of spare (stock) parts
Scope of MV Retrofit
Methodology
Replacement of contactors, fusing/ all other components as required
Defining required performance parameters
Upgrading of panels with respect to current and voltage rating
Study of existing system
Conservation of fixed type circuit breaker soft start draw out type, transformer feed to fusing, to contactor, to motor, etc.
Identifying problem areas
Installation cost, downtime, space requirements
Providing solutions based on the best technology
Upgrade protection devices—additional programmable motor protection
Execution with minimal downtime
The Benshaw Advantage Here are just a few of the advantages you’ll gain from Benshaw’s soft starters.
Control of the current ramp during startup. The Benshaw soft start protects electrical systems from disruptive voltage drops and power outages caused by motor-locked rotor inrush current. Protection of machinery from failure and excessive maintenance caused by mechanical shock during starting or stopping. The Benshaw soft start uses controlled acceleration and deceleration. Programming capabilities include control and power electronics, as well as bypass and isolation contactors and power factor correction capacitor banks that can reduce maintenance and operating costs. Complete line monitoring, motor control and protection. These functions protect mission critical motors from failure or unscheduled outages caused by machine or electrical system faults.
In a one-to-one retrofit solution, the new system is re-engineered: 1. The static portions of the equipment, enclosure panels, bus bar, main cabling or components are not changed. 2. Maintain original switchgear system. 3. Increase expected lifetime, improve availability/safety and reduce maintenance cost.
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Retrofit: The Smart Alternative Application
GE Limit Amp Draw-out Stacks
4160 VAC 2000 HP Natural Gas Compressor Includes: MX 3 fiber optic controls; draw-out power stacks
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Before: obsolete power section
After: new state-of-the-art 3000 HP power section
Before: obsolete controls
After: new MX3 fiber optic controls
Pull-out design
Easy access
Wound Rotor Motor Starter Technology Retrofit
Application 4160 Vac 1000 HP Gyratory Crusher Includes: load break disconnect switch; inline/bypass contactors; motor fuse protection 120 Vac CPT; solid state reduced voltage starter; MX 3 controls/protection; new secondary resistors and timing control
5 kV medium voltage lineup
Before: full voltage starter
After: Solid state reduced voltage starter
Full Voltage Technology Retrofit
Application 2300 Vac 1000 HP Blower Starter Includes: load break disconnect; inline and bypass contactors; motor fuse protection; 120 Vac CPT; solid state reduced voltage starter and electronic controls / protection
Before: full-voltage starter
After: solid state reduced voltage starter
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Retrofit: The Smart Alternative Application
GE Limit Amp Auto Transformer Retrofit
4160 Vac 1000 HP Fresh Water Pump Includes: MX 3 controls and protection; solid state reduced voltage starter; updated pump control logic
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Controls before
Controls after
Completed starter
New front panel controls
Square D Synchronous Motor Starter Technology Retrofit
Application 4160 Vac 500 HP Refrigeration Compressors
New field discharge resistor Load break disconnect
Includes: load break disconnect switch; inline and bypass contactors; motor fuse protection 120 Vac CPT; solid state full voltage starter; MX 3 controls/ protection; 125 Vdc motor secondary exciter and control
Smart ATL and SEP control keypads
Completed controls
Before
Retrofit in progress
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24/7 Technical Support
Repairs
Benshaw is dedicated to providing comprehensive 24-hour-a-day, 7-day-a-week phone support. Benshaw provides repair, spare parts, field engineering, retrofit and training services, when and where you need us. You can count on our experienced team, backed by the latest diagnostics and repair tools and an extensive parts inventory to support your operations. Call 1.800.203.2416
Repairs are made on Benshaw equipment by trained, experienced personnel, using the latest diagnostic and test equipment. Field Services are performed on-site by skilled technicians, engineers or complete teams if needed, including:
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Start-up commissioning
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Field repairs
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Field analysis/data collection
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Preventative maintenance
24/7 Hotline Support from our operations in Pittsburgh and Listowel (Canada):
The Benshaw Product Line
• Technical phone support
A wide range of motor controls and drives is available.
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Overnight parts shipment
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Solid state starters fractional up to 30,000 HP at 15 kV
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24-hour service dispatch
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LV AC drives to 700 HP, MV AC drives to 3,000 HP
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Coordination of all service capabilities
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Electromechanical controls to 800 A
Benshaw Express is a 24/7 online inventory and order entry system for authorized Benshaw distributors:
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24/7 shipment
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Either air or truck delivery
Visit us online at benshaw.com and benshawexpress.com, or contact: BENSHAW, Inc. 615 Alpha Drive Pittsburgh, PA 15238 Phone: 412.968.0100 Fax: 412.968.5415 BENSHAW Canada 550 Bright Street East Listowel, Ontario N4W 3W3 Phone: 519.291.5112 Fax: 519.291.2595
Specifications are subject to change without notice. ©2014 Regal-Beloit Corporation MKT 125-014R Printed in the USA
A Regal Brand
www.regalbeloit.com
