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I have been calculation ground grid system by ETEP 4.0.0 version Given:Area 90*68mm^2 surface material is crushed rock;10 cm top layer 100 ohm/m low layer 20ohm/m fault current 31.5 kA,X=6 fault duration time 1 sec grid current factor 100% conductor is commercial Hard-Drawn Rods are copper-clad...

One again, For the correct operation of many relay features, the instrument transformer polarities shown above in the Typical Wiring Diagram on page 3–8 must be followed. Note the solid square markings shown with all instrument transformer connections. When the connections adhere to this...

Hi rockman How is going,have you already find out that wrong with multilin 750? Have you already check CT,VT input of 750 and also from VT and CT to the relay input must be same phase(not wrong wiring). jack

Yes,I think GE is the best. Easy to use and set.

Thank you for alls suggust.I will ask new question.

Dear alls. I would like to know that how to test Over/Under excite function of generator. Regrads.