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Synergy Engineering has created information portals to enable customers to access specific data about all the solutions we provide.



Synergy Corporate Brochure
To download PDF version, click here.



SRC
An engineered product, the Secondary Resistive Controller is used for accelerating Wound Rotor Induction Motors for all types of applications.

Essentially, the SRC controls the motor speed or torque through the programmed selection of binary-coded stainless steel resistors in the rotor circuit.

Ideally suited for replacing existing outdated resistive controllers, and for new materials handling systems which require:
  • controlled acceleration
  • limited inrush current
  • the highest reliability attainable

Requiring little to no maintenance over its 20+ year technological life, the SRC is an obvious drive choice for applications in the most remote locations, and the harshest operating environments.

To download PDF, click here.



Pump SRC
Synergy has applied its proven Secondary Resistive Controller technology with pumping applications to create a new Pump Drive SRC with variable speed capability.

By combining Synergy's SRC technology with our new theories and extensive engineering design, we have implemented the Pump Drive SRC to be one of the most reliable systems on the market with zero failures to date.

Each Pump Drive SRC is designed specifically to meet the requirements for each situation. This includes application-specific speed control and acceleration programs, as well as application-specific specially designed dual-purpose stainless steel resistor grids used for acceleration and continuous speed control.

This is a fully self-contained and compact unit that can be easily integrated into an existing system or used as a stand-alone unit. Benefits include:
  • Reliability
  • Efficiency
  • Cost
  • No harmonic generation
  • Due to the compact design, installation time is minimized.
The ability of the Pump Drive SRC to deliver up to breakdown torque to the driven load as required while still providing variable speed, makes the Pump Drive SRC a most effective drive.

Overall, the Pump Drive SRC proves to be less costly than other pump drive options.

To download PDF, click here.



Lauhoff—Saving Energy
Controlling belt speed does not significantly reduce energy costs, as presented in a recent technical paper by Hans Lauhoff: "The energy consumption of long, horizontal belt conveyor systems in stationary operating conditions is determined by the motion resistance."

(Click here to see Speed Control on Belt Conveyors—Does it Really Save Energy? by Hans Lauhoff PDF.)



Quarrying
To download PDF, click here.



Automation & Control
The Gibraltar mine was reopening after a long shutdown. They needed to revamp their entire control system, and called upon Synergy Engineering for expertise in instrumentation and control…

(Check back later to see Gibraltar Mines PDF.)

Synergy designs electrical systems for limestone and aggregate quarries. The original quarrying operation on Texada Island was built in 1973 to provide crushed limestone to the cement, agricultural and chemical industries…

(Click here to see Texada Quarrying Ltd. PDF.)

When the new Minera Antamina copper mine was constructed high in the Andes Mountains of Peru, a new port facility was needed to process the concentrate and transfer it to deep-sea vessels. Synergy was asked to design the electrical system for 1600 tph shiploader at Puerto Huarmey…

(Click here to see Minera Antamina PDF.)



Electrical

Safety Upgrade of 138 Kv substation for Highland Valley Copper. The original substation was built approximately 30 years ago and safety standards had changed regarding electrical clearances…

(Click here to see Highland Valley Copper electrical PDF.)



Partial Projects List
To download PDF, click here.



Design Fundamentals for Drive Systems on Conveyors
By Luke Meakin and Peter Saxby, Hatch

The combination of a number of factors can result in conveyor drives being undersized or operating in an unsuitable manner. Some of these factors include:
  • The trend to reduce drive sizes by reducing friction coefficients.
  • The trend towards using squirrel cage induction motors under variable voltage variable frequency controls combined without considering the drive characteristics.
(Click here to see the Meakin/Saxby PDF.)



The Right Drive to Maximize Efficiency and Production for Large Overland Conveyors
By Nicole Neuman, P.Eng, Synergy Engineering Ltd.


This paper examines various drive systems available for large overland conveyors, with special attention to starting and operating methods with respect to two most commonplace drives, the VFD (for squirrel cage induction motors) and the SRC, secondary resistive controller, (for wound rotor induction motors).

(Click here to see The Right Drive to Maximize Efficiency and Production for Large Overland Conveyors by Nicole Neuman, P.Eng PDF.)



Choose the Right Variable Speed Motor for Specific Equipment
By Tom Aloor, Nidec Motor Corporation


Why and how do leading OEMs choose a variable speed motor for their equipment? While rated efficiency has been an important driver in the past and will continue to be one in the future, leading equipment and machinery manufacturers now use sophisticated variable speed technologies to radically redefine their products.

The developments in this field throughout the past decade allow OEMs to create smaller machines with greater functionality, fewer wear parts, higher uptime and much lower total cost of ownership (TCO) for the user.

In a rapidly globalizing business environment, every tool in the kit must be used – a custom-engineered switched reluctance (SR) motor-drive package perfectly optimized for your machine may be one important tool.

Synergy has a licensing agreement to supply the Nidec-SRDL SR drive system and has extensive expertise as a drive systems integrator for a wide range of materials handling project. As such, we are excited to add this drive type to our portfolio of offerings for key industry applications.
 
(Click to see the complete article, "Trends in Variable Speed Technology" written by Tom Aloor, Nidec Motor Corporation.)



TECHNOLOGY PRIMER


SRC WRIM Drive Systems


The Secondary Resistive Controller is a most reliable and robust controller for various large Wound Rotor Induction Motor industrial applications…

(Click here to see SRC/WRIM PDF.)


SRC for Pumps

Secondary Resistive Controllers for Pumping Applications couples Synergy's long-time proven SRC technology with pump applications, resulting in the new Pump Drive SRC with variable speed capability…

(Click here to see SRC Pump PDF.)


Lauhoff—Saving Energy

Controlling belt speed does not significantly reduce energy costs, as presented in a recent technical paper by Hans Lauhoff: "The energy consumption of long, horizontal belt conveyor systems in stationary operating conditions is determined by the motion resistance."

(Click here to see Speed Control on Belt Conveyors—Does it Really Save Energy? by Hans Lauhoff PDF.)


Design Fundamentals for Drive Systems on Conveyors

The combination of a number of factors can result in conveyor drives being undersized or operating in an unsuitable manner. Some of these factors include:

  • The trend to reduce drive sizes by reducing friction coefficients.
  • The trend towards using squirrel cage induction motors under variable voltage variable frequency controls combined without considering the drive characteristics.

(Click here to see Design Fundamentals for Drive Systems on Conveyors by Luke Meakin and Peter Saxby PDF.)


The Right Drive to Maximize Efficiency and Production for Large Overland Conveyors

This paper examines various drive systems available for large overland conveyors, with special attention to starting and operating methods with respect to two most commonplace drives, the VFD (for squirrel cage induction motors) and the SRC, secondary resistive controller, (for wound rotor induction motors).

(Click here to see The Right Drive to Maximize Efficiency and Production for Large Overland Conveyors by Nicole Neuman, P.Eng PDF.)