Views
5 years ago

Overcurrent and Distance Relays - SIPROTEC

Overcurrent and Distance Relays - SIPROTEC

Overcurrent and Distance Relays 4 7SJ511 Numerical overcurrent–time protection relay (Version V3) US Curves The following inverse–time characteristics have been adapted to the requirements of the US market. The US–version has a ”1” in the 11th place of the order number. t � � A (��� p ) N –1 � B� � D t tripping time �p current setting A, B, N parameters � �–Squared–T Curve (Fig. 7) t � 50.7 D � 10.14 (��� p ) 2 t tripping time �p current setting D time dial setting 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 0.01 1 2 3 5 7 10 20 �/�p D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 D = 0.1 D = 0.05 Fig. 7 Tripping time characteristic, �–squared–T curve Curve type A B N Inverse 8.9341 0.17966 2.0938 Short inverse 0.2663 0.03393 1.2969 Long inverse 5.6143 2.18592 1.0000 Moderately inverse 0.054196 0.09328 0.0200 Very inverse 19.138 0.48258 2.0000 Extremely inverse 28.2785 0.12173 2.0000 Definite inverse 0.4797 0.21359 1.5625 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 0.01 D = 0.05 1 2 3 5 7 10 20 �/�p Fig. 8 Tripping time characteristic, inverse D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 D = 0.1 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 0.01 1 2 3 5 7 10 20 �/�p D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 D = 0.1 D = 0.05 Fig. 9 Tripping time characteristic, moderately inverse Siemens LSA 2.1.3 . March 1997

7SJ511 Numerical overcurrent–time protection relay (Version V3) 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 D = 0.2 D = 0.1 D = 0.05 0.01 1 2 3 5 7 10 20 �/�p Fig. 10 Tripping time characteristic, short inverse 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 0.01 1 2 3 5 7 10 20 �/�p Fig. 11 Tripping time characteristic, very inverse D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 D = 0.1 D = 0.05 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 0.01 1 2 3 5 7 10 20 Fig. 12 Tripping time characteristic, long inverse 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 Overcurrent and Distance Relays Siemens LSA 2.1.3 . March 1997 5 �/�p I/Ip D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 D = 0.1 D = 0.05 D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 0.02 0.01 1 2 3 D = 0.05 5 7 10 D = 0.1 20 Fig. 13 Tripping time characteristic, extremely inverse 100 70 t [s] 50 20 10 7 5 2 1 0.7 0.5 0.2 0.1 0.07 0.05 0.02 0.01 D = 0.05 1 2 3 5 7 10 20 �/�p D = 10 D = 7 D = 5 D = 3.2 D = 1.6 D = 1 D = 0.5 D = 0.2 D = 0.1 Fig. 14 Tripping time characteristic, definite inverse

SIPROTEC 7SJ602 Multifunction Overcurrent and Motor Protection ...
Protection Relays - SIPROTEC 5 - Siemens
IDMTL OVERCURRENT RELAY RSH 207 Series - munhean.com
D60 Line Distance Relay
Overcurrent Relay RAS70-3B - Industrial X Supply Co.,Ltd. Website
CT Requirements of Distance Relays - cigre
Adaptive window filters - based distance relay
Chapter 2: Monitoring relays - Hiquel
3RN1 thermistor motor protection relay - Siemens Industry, Inc.
relays sensors connectors - Panasonic Electric Works Corporation of ...
Relay couplers MICROSERIES, PLUGSERIES ... - Dyer Technology
Single/Three Phase Solid State Relay
Download our ISSR Selection Guide! - Teledyne Relays
PhotoMOS & Solid State Relays - Panasonic Electric Works Europe ...
Mitsubishi Electric Safety Relay brochure - Womack Machine Supply ...
UR Line Differential Relay High-speed current differential protection ...
SIPROTEC 4 7SA522 Distance Protection Relay for Transmission ...
SIPROTEC 4 7SJ63 Multifunction Protection Relay - Siemens
SIPROTEC 4 - 7SA6 Distance Protection Relay for all Voltage Levels
SIPROTEC Compact Overcurrent Protection 7SJ81 for Low-Power ...
SIPROTEC 4 7SJ62 Multifunction Protection Relay - Siemens
SIPROTEC 4 7UT6 Differential Protection Relay for ... - Siemens
MICROSHIELD O/Cä Multiphase Time-Overcurrent Relay - Abb