DEMOL for Android

Calculates fuse link sizes from transformer kVA, system voltage, and phase selection, producing ready-to-use fuse types for field checks. DEMOL, from Caio Nunes, targets electrical engineers with a mobile technical calculator. The app supports single- and three-phase systems, multiple distribution voltages, and identifies standard fuse types such as Type K and Type T. Field technicians, electricians, and students get immediate, on-site results without manual table lookups; it's designed for Android phones and tablets for on-site use.

What does the app calculate for transformer protection?

The app accepts a transformer's power rating (kVA), the distribution voltage level, and the system phase to produce a fuse link dimensioning result. It maps those inputs to standard fuse types, including Type K and Type T, and returns a recommended link based on engineering tables encoded in the tool. Inputs and results display on a single screen so technicians can copy values into field reports.

Does it affect device performance during calculations?

The tool runs locally on Android and performs instant arithmetic and table lookups rather than prolonged background tasks. Because it is intended as a quick technical reference, it does not run scans or services that persist after a session ends. The calculation path is input → lookup → result, which keeps interaction short and lets a technician return to other mobile tasks immediately.

Is it safe to use on-site for protection decisions?

The app produces outputs derived from technical standards for fuse link dimensioning, so results reflect those encoded rules when given correct inputs. It operates as a read-only calculator on the device and does not modify system settings or networked equipment. Users should treat the output as a technical aid that reports a candidate fuse link rather than a final coordination study performed by protection engineers.

Do I need electrical expertise to operate the app correctly?

The interface requests domain-specific values such as transformer kVA and operating voltage, so an operator must understand those parameters. The developer designed the experience for engineers, technicians, and students, so the tool assumes knowledge of transformer ratings and basic protection concepts. Casual users without electrical training will find the input requirements technical and may need reference material to interpret the suggested fuse types.

Practical utility for field checks, not a substitute for full coordination studies

The app is a practical on-site calculator for technicians who need rapid fuse-link candidates based on transformer kVA and voltage. Use it to speed routine checks and to reduce manual table lookups; keep formal coordination studies and detailed protection analysis separate from these quick results. Recommended.