---
title: "TrafoCalc - Bewertungen, Einnahmen und Downloads in Malaysia | Apple App Store"
description: "TrafoCalc is a practical transformer calculation tool built specifically for field engineers, commissioning teams, and utility professionals. Designed for real-world use at substations and test sites,"
---

# TrafoCalc — Malaysia

![TrafoCalc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/a2/a2/68/a2a268e5-46e2-8a3c-7e4a-651ab7ddfc1d/AppIcon-1x_U007epad-0-1-85-220-0.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/de/developer/unknown-lHKpvb)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** db.Transformer-Data
**Store:** Apple App Store
**Country:** Malaysia
**Version:** 1.0.1 (released 2026-01-25)
**Original Release:** 2026-01-16
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/my/app/app/id6757797482)
**AppTail Page:** [https://apptail.io/de/app/trafocalc-Wpiy/malaysia](https://apptail.io/de/app/trafocalc-Wpiy/malaysia)

## TrafoCalc Description
TrafoCalc is a practical transformer calculation tool built specifically for field engineers, commissioning teams, and utility professionals.
Designed for real-world use at substations and test sites, TrafoCalc provides fast, reliable calculations without spreadsheets or manual formulas.
Key Features
• Rated current calculation (HV & LV, 3-phase)
• Transformer ratio calculation based on vector group
• Full tap-changer support (Tap 1 = highest voltage)
• Per-tap voltage and ratio calculation
• ±0.5% ratio tolerance range for testing reference
• Short-circuit current calculation
• Supports common IEC vector groups (Dyn, YNd, Yy)
• Clean, offline-ready interface
Built for Professionals
TrafoCalc follows IEC-based formulas and is suitable for:
• Factory Acceptance Tests (FAT)
• Site Acceptance Tests (SAT)
• OLTC verification
• Ratio testing reference
• Substation commissioning
No ads. No clutter. Just the calculations engineers actually need.

## TrafoCalc Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e0/52/9f/e0529f01-5a93-cf9a-a13a-3187c4cfce6c/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-01-15_at_23.17.22.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/27/84/95/2784956e-cb98-9939-4cbf-ae4a9423fd6a/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-01-15_at_23.17.52.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/18/ca/12/18ca1256-d8cb-ad17-9940-0518ce1f6a38/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-01-15_at_23.18.08.png/2688x1242.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/75/0c/e2/750ce22a-7dd0-8ef5-a348-9162f92e21a6/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-01-15_at_23.18.16.png/2688x1242.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d3/b9/03/d3b90354-cec1-ad30-455d-3f34a39e86bf/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-01-15_at_23.18.23.png/2688x1242.png)




## TrafoCalc Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Bezahlt | Malaysia | Utilities | #38 |
| Top Bezahlt | Malaysia | Overall | #202 |




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