At equal 800 V full span and 200 kW load, midpoint and two-wire implementations carry equal ideal 250 A; their grounding changes earth stress and fault duty.
±400 V; 800 V span; 200 kW / 250 A; 400 V / 800 V to earthderived
| Value kind | derived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method. |
|---|---|
| Scope | Assumed screening case; use the full-precision equations for comparisons, not rounded display limits. Actual equipment qualification remains separate. |
| As of | Illustrative guide derivation, September 8, 2026 |
| Source | Guide derivation, September 8, 2026; Chapter 4.7 stated-assumption case. · Chapter 4.7 — Illustrative — stated assumptions |
| Derivation | I=200000/800=250 A. Ideal solid midpoint sets +400/-400 V to earth; bonding one end sets the other end at 800 V. Isolated output requires its distinct first-fault envelope, including capacitor discharge. |
| Review | checking…cadence-derived review 2027-01-06 · standard cadence |
| Recorded changes | none recorded |
| Claim id | part4-equal-span-interface |
Where the guide uses it
Not quoted in a chapter yet; it is kept in the curated register.
← Full numbers register — every date-stamped figure in the guide, with revision history.