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Air/Oil-Cooled Core Type Auto-transformer Starters

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We manufacture both Air and Oil-Cooled Core Type Autotransformer Starters based on Korndorfer Closed Circuit Principle and Primary Switch-Off Module with Core Type Auto-transformers.

Our Core Type Auto-transformer starters offer all the energy savings advantages of our R-Core technology. These controllers only require one cable to run from itself to the motor thereby providing uniform current at reduced resistance to the motor. As a result, a savings of between 2% and 7% in power consumption can be established, depending upon the application and cable length. The elimination of one cable also reduces the initial capital cost incurred at set-up. Our product brochure which can be downloaded from our web-site demonstrates a simple calculation for energy savings.

The technology is also based on Korndorfer Closed Transition Principle with Primary-Off Logic which eliminates transients completely between the change-over from ATS to DOL. The Auto-transformer acts as a choke in the transition mode, providing extra energy, thus possessing the capability to reduce the motor size in case of high initial torque and friction applications. As a result, these controllers guarantee a much longer life to the motor, the machinery connected to it and appliances that are in its vicinity.

Our Starters are most suitable for high inertia and high torque applications. Slip-Ring Motors can now be replaced with Squirrel Cage Induction Motors installed on our MSE Auto-transformer Starters because our starters, incorporated with Squirrel Cage Induction Motors, can provide the same high starting torques that are provided by Slip-Ring Motors. An additional power savings can be established because the efficiency of the Squirrel Cage Motor is 93% as compared to the lower 87% efficiency of the Slip-Ring Motor.

We follow all the guidelines of ISS 8544 Part IV and only use glass insulated wiring, Siemens/ABB/Schneider switchgear and optional RS232/485 ports for online real-time data collection, motor control and management. We manufacture our own enclosures with strict QA Systems.

SALIENT FEATURES

  • Korndorfer Closed Transition Technology
  • Primary-Off Logic Circuit
  • Built as per ISS 8544 Part IV, IEC and NEMA Standards
  • Glass Insulated Joint-less EC Grade Copper Mains Wiring, hot Tinned at Terminations
  • Enclosures Designed with strict QA Systems
  • Siemens/ABB/Schneider Switchgear

ADVANTAGES


  • Power Savings as compared to Star Delta Starters!
  • Reduces initial capital cost; requires only one cable to run the motor!
  • Eliminates Transients Completely; Reduces dips in Electrical Installations!
  • No motor burning; Reduces electrical and mechanical stresses of the machines!
  • No Damages to Mains Wiring!
  • Withstands high initial torques with MD Control!
  • Ideally suitable for high torque requirements: loads connected to DG/Turbine power supplies!
For Information on model numbers, click here

Our Products

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Contact
401, Apollo Trade Centre,
2 B, Rajgarh kothi, Geeta Bhavan Square, A.B. Road, Indore
M. P. - 452 001, India
Tel : + 91 731 4066666
Fax: + 91 731 4066555
e-mail : energy@midexgroup.com