# P&C Engineer Tools > Power system engineering utility for calculations and protection setting verification. (iPhone/iPad app by Miguel Rios.) - Source: https://appshunter.io/ios/app/p-and-c-engineer-tools/id919001170 (this page in markdown: same URL + `.md`) - Developer: [Miguel Rios](https://appshunter.io/developer/919001169) - Category: Utilities, Productivity - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 8 MB - Languages: English - Released: 2014-10-12 - Data updated: 2026-08-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/p-and-c-engineer-tools/id919001170/reviews.md ## What is P&C Engineer Tools? P&C Engineer Tools is the ultimate utility for protection and control engineers, relay technicians, and power system professionals. This all-in-one toolbox allows you to perform complex calculations and verify protection settings directly from your device. Key Features: • Symmetrical Components: Easily convert between Phase (ABC) and Sequence (012) values. Visualize phasors with dynamic vector graphs and analyze unbalanced fault conditions. • Distance Protection (21): Analyze impedance characteristics, calculate test values (Reach, MTA, Time), and visualize protection zones on the R-X diagram. • Differential Protection (87): Visualize differential slope characteristics, verify operating points, and check restraint currents. • CT Saturation: Analyze Current Transformer performance using IEEE C37.110 standards. Calculate Time-to-Saturate and assess saturation risks. • Power Vector Tool: visualize voltage and current phasors, and calculate Real (P), Reactive (Q), and Apparent (S) power. Designed for efficiency in the field or the office. Disclaimer: This software is for educational and reference purposes. MARDEVELO does not take responsibility for any errors the program may have. Always verify critical calculations manually. ## Key features - Symmetrical components analysis - Distance protection (21) calculations - Differential protection (87) visualization - CT saturation assessment - Power vector calculations - Phasor visualization ## Frequently asked questions about P&C Engineer Tools ### What is P&C Engineer Tools used for? P&C Engineer Tools is a utility app designed for power system professionals to perform complex calculations and verify protection settings. It helps with tasks like analyzing symmetrical components, distance and differential protection, and CT saturation. ### Is P&C Engineer Tools free to use? Yes, P&C Engineer Tools is available for free. There are no in-app purchases or advertisements within the application. ### What devices support P&C Engineer Tools? P&C Engineer Tools is supported on iPhone, iPad, and iPod devices. It is designed for iOS users in the utilities category. ### How often is P&C Engineer Tools updated? The latest version of P&C Engineer Tools is 2.3, last updated on April 26, 2026. While the last update date is in the future, indicating potential for future development, users can expect ongoing support. ### What are the key calculation features in P&C Engineer Tools? Key features include symmetrical components conversion, distance protection zone analysis, differential protection visualization, CT saturation assessment according to IEEE C37.110, and power vector calculations. ### Does P&C Engineer Tools have ads? No, P&C Engineer Tools does not contain advertisements. It is a completely ad-free utility application. ### What is the age rating for P&C Engineer Tools? P&C Engineer Tools has an age rating of 4+, making it suitable for a wide range of users interested in power system engineering. ### What is the user sentiment for P&C Engineer Tools? Based on the provided data, P&C Engineer Tools has a perfect rating of 5.0 stars from 1 rating, indicating very positive user sentiment. ## Version history (last 5 releases) ### 2.3 — 2026-04-26 2.3 Update! Bug Fixes: Improved stability and performance of: • Distance Protection Tool: Test impedance zones and reach. • Differential Protection Tool: Slope analysis and operating point verification. • CT Saturation Tool: Mitigation analysis and saturation timing. • Power Vector Tool: Phasor analysis and power calculations ### 2.2 — 2026-01-20 2.2 Update! New Polar to Rectangular Converter. Bug Fixes: Improved stability and performance of: • Distance Protection Tool: Test impedance zones and reach. • Differential Protection Tool: Slope analysis and operating point verification. • CT Saturation Tool: Mitigation analysis and saturation timing. • Power Vector Tool: Phasor analysis and power calculations ### 2.1 — 2025-12-19 2.1 Update! We have expanded the app into a complete P&C Engineer's Toolbox. • New Distance Protection Tool: Test impedance zones and reach. • New Differential Protection Tool: Slope analysis and operating point verification. • New CT Saturation Tool: Mitigation analysis and saturation timing. • New Power Vector Tool: Phasor analysis and power calculations. • UI Overhaul: A completely refreshed design for better usability in the field. • Bug Fixes: Improved stability and performance. ### 2 — 2025-12-16 Major 2.0 Update! We have expanded the app into a complete P&C Engineer's Toolbox. • New Distance Protection Tool: Test impedance zones and reach. • New Differential Protection Tool: Slope analysis and operating point verification. • New CT Saturation Tool: Mitigation analysis and saturation timing. • New Power Vector Tool: Phasor analysis and power calculations. • UI Overhaul: A completely refreshed design for better usability in the field. • Bug Fixes: Improved stability and performance. ### 1.0 — 2014-10-12 This app has been updated by Apple to display the Apple Watch app icon. ## Apps similar to P&C Engineer Tools | App | Rating | Price | Category | | --- | --- | --- | --- | | [VS borescope](https://appshunter.io/ios/app/vs-borescope/id6464238708) | — | Free | Utilities | | [Public Bathroom Finder](https://appshunter.io/ios/app/public-bathroom-finder/id6748286129) | 5.0 (3) | Free | Utilities | | [Power Grid Map](https://appshunter.io/ios/app/power-grid-map/id6740839186) | 5.0 (1) | Free | Utilities | | [Better Calc](https://appshunter.io/ios/app/better-calc/id1585689494) | 5.0 (2) | Free | Utilities | | [Vector Calculator Plus](https://appshunter.io/ios/app/vector-calculator-plus/id1630864948) | 4.0 (1) | $2.99 | Utilities | | [Gridphase](https://appshunter.io/ios/app/gridphase/id6469338974) | — | Free | Utilities | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*