Protection Coordination

Purpose

We will model all protective devices in your system including Fuses, MCBs, MCCBs, ACBs and modem digital protection relays. The protection coordination study will:

  • Ensure all electrical equipment is adequately protected against overloads, fault currents & earth fault, evaluate and confirm adequacy and performance of protection CTs
  • Confirm coordination between upstream and downstream devices using graphical Time Current Curves (TCCs) and sequence of operation analyser to avoid and totally eliminate costly spurious trips in the power system
  • Determine optimal settings of all protective equipment
  • Evaluate impacts of motor starting on protection settings
  • Calculate relays settings to cater for impacts of infeeds and mutual couplings in parallel and T’d-feeders for HV & EHV systems