Use this Quick NEC 250.64(E) calculator to quickly determine the grounding electrode conductor size for parallel service conductors, ensuring your installations stay safe and code-compliant.
Get the correct grounding electrode conductor in seconds—our GEC size calculator delivers quick, accurate, code-aware results for service and SDS installations so you can plan with confidence.
Get accurate grounding sizes in seconds with this EGC sizing calculator. It applies NEC 250.122(F) to parallel conductors in multiple raceways so you can size equipment grounding conductors confidently and quickly.
Need to know if transformers in parallel are compatible? Use our easy calculator to check kVA ratio, %Z and phase shift so you can connect confidently and avoid costly problems.
Stop wrestling with unequal currents — the parallel transformer load share calculator helps you pinpoint impedance mismatch and shows quick fixes. It’s fast, simple, and gets your transformers sharing load evenly.