Welcome to Stemar

Our mission is to provide sound technically competitive
solutions for Transformers, Metering and Distribution components

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Consulting Services


Stemar personnel have over 60 years experience in design of protection and energy monitoring systems. The service provided can include fault calculations and calculations for specific CT design requirements to ensure stability under fault in:

  • Differential protection schemes
  • Restricted Earth fault protection
  • Very sensitive earth leakage applications within switchgear with high busbar currents.

We look forward to meeting your next challenging requirement.