GE MiCOM P40 Agile Technical Manual

Also see for MiCOM P40 Agile: Technical manual Technical manual Technical manual Technical manual Technical manual

Contents

Application Notes P44x/EN AP/Hb6MiCOM P40 Agile P442, P444 (AP) 5-3CONTENTS1 INTRODUCTION 71.1 Protection of overhead lines and cable circuits 71.2 MiCOM distance relay 71.2.1 Protection Features 71.2.2 Non-Protection Features 81.2.3 Additional Features for the P442 Relay Model 91.2.4 Additional Features for the P444 Relay Model 101.3 Explanation about specific symbols used in the logic diagrams 102 DISTANCE ALGORITHMS 112.1 Distance and Resistance Measurement 112.1.1 Phase-to-earth loop impedance 132.1.2 Impedance measurement algorithms work with instantaneous values (current and voltage).142.1.3 Phase-to-phase loop impedance 142.2 "Delta" Algorithm 152.2.1 Fault Modelling 162.2.2 Detecting a Transition 172.2.3 Confirmation 202.2.4 Directional Decision 202.2.5 Phase Selection 212.2.6 Summary 212.3 "Conventional" Algorithms 222.3.1 Convergence Analysis 232.3.2 Start-Up 232.3.3 Phase Selection 242.3.4 Directional Decision 252.3.5 Directional Decision during SOTF-TOR (Switch On To Fault/Trip On Reclose) 252.4 Faulted Zone Decision 262.5 Tripping Logic 272.5.1 General 272.5.2 DDB inputs / outputs for General trip logic 272.6 Fault Locator 292.6.1 Selecting the fault location data 302.6.2 Processing algorithms 302.7 Double Circuit Lines 313 DISTANCE PROTECTION AND DISTANCE SCHEME FUNCTIONS 333.1 Fault distance characteristics (“Distance elements” menu setting) 343.1.1 Line setting 343.1.2 Zone setting 343.1.3 Fault locator 44