Transformer
IEEE C57 · AS 60076 · GEMS
Nameplate
Standard size (AU ladder)
Rating
kVA
Phases
Primary (HV)
V
Secondary (no‑load)
V
Vector group
Construction
Impedance Z
%
No‑load loss P₀
W
Load loss Pₖ
W
Operating point & source
Load fraction
pu
Power factor
PF sense
LV neutral
NER resistance
Ω
Upstream source
Source fault level
MVA
Source X/R
Impedance & efficiency defaults
X/R (blank → T4 typical)
Z0/Z1 (blank → 0.90)
Cooling uprate
Pₖ measured temp (opt)
°C
GEMS min η @50% (opt)
%
Taps · through‑fault · service
Supply voltage
V
Tap target (LV)
V
Tap range ±
%
Tap step
%
Through‑fault category
Frequent‑fault duty
Inrush multiple
× FLC
Ambient (avg)
°C
Altitude
m
Analysis
solved
IEEE C57 · IEC 60909 · GEMS
Document
Audit-ready sheet
Notes
- Nameplate values assumed per the standard-size preset unless overridden — verify against the actual nameplate.
- Fault, regulation and efficiency evaluated at the stated operating point.
- Through-fault damage curve is an indicative overlay; confirm the manufacturer's withstand and any relay grading.
References
- — awaiting inputs —
Export
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