RELAYS 101 iPH at App Store analyse

App power index: 180 (based on ranks around App Stores today)
Utilities Education
Developer: Merle Ashton
Price: 0 free
Current version: 4.2.13, last update: 4 years ago
First release : 26 Dec 2013
App size: 2.26 Mb
4.8 ( 7488 ratings )
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Estimation application downloads and cost

> 3.96k
Monthly downloads
~ $ 1.62k
Estimation App Cost


Protective Relay Technician Calculator for iPhone. All of the calculations of the RELAYS 101 for iPad version just missing the phasor drawings to fit the smaller iPhone screens. Symmetrical Components, Apparent Impedance, Phase-Phase calculations and vector addition and subtraction are now at your finger tips.
There are also pages to help you set-up relay tests for Phase-to-Phase faults (with no V0 and no I0), Phase-Ground fault relay tests and 3-Phase fault relay tests. There is a page for up to 6 vector additions (help you add Bus Diff phasors) and a PQS calculations page. An amazing amount of information in this APP. Your iPhone is now an essential tool for your relay testing tool box.
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Available in countries
Country Price
Canada 2.79 CAD
China 12 CNY
France 2.29 EUR
Germany 2.29 EUR
Italy 2.29 EUR
Netherlands 2.29 EUR
Portugal 2.29 EUR
Spain 2.29 EUR
Poland 4.49 EUR
UK 1.99 GBP
India 159 INR
Japan 250 JPY
Korea, Republic Of 999.99 KRW
Poland 8.99 PLN
Russia 149 RUB
Turkey 12.99 TRY
USA 1.99 USD
Korea, Republic Of 4.39 USD
Ukraine 1.99 USD
Available for devices
iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,