Siemens 7SA511 사용자 설명서

7SA511 Line Protection Relay

Chapter 2

2. Product Description ............................................................................................................ 2-3

2.1 About the Relay..................................................................................................... 2-3
2.2 Relay Features ....................................................................................................... 2-3
2.3 Relay Setting Types............................................................................................... 2-4

2.3.1 Relay Setting Descriptions (by Address Block)........................................ 2-5

2.4.1 Distance Protection ................................................................................. 2-8
2.4.2 Emergency Overcurrent Protection.......................................................... 2-10
2.4.3 Power Swing Protection (optional).......................................................... 2-10
2.4.4 Pilot Protection ....................................................................................... 2-10
2.4.5 High-Sensitivity Ground Fault Protection for Ungrounded Systems
(optional) ......................................................................................................... 2-10
2.4.6 High-Resistance Ground Fault Protection (optional)................................ 2-11
2.4.7 Automatic Reclose (optional).................................................................. 2-12
2.4.8 Distance-to-Fault Location...................................................................... 2-12

2.5.1 Secured Data Storage.............................................................................. 2-13
2.5.2 Serial Data Ports ..................................................................................... 2-13
2.5.3 Multiple Parameter Sets (optional) .......................................................... 2-14