Main function: Distance protection
Interoperability: SIPROTEC 5 and 4 line protection devices
Tripping: 1-pole & 3-pole, minimum 9 ms
Inputs/Outputs: 12 standard variants; 4/4 or 8/8 current/voltage transformers; 5–31 binary inputs; 8–46 binary outputs
Hardware: Flexible I/O quantity within SIPROTEC 5 modular system
Housing width: 1/3 × 19" to 2/1 × 19"
Standard: Conformal Coating
Application: Detection & selective 1-/3-pole tripping; ground fault detection; backup protection; serial communication; Phasor Measurement Unit (PMU)
Location: Mumbai & India, through authorized Siemens suppliers
Breaker management and protection relay with 4 current and 4 voltage inputs (4xI, 4xV)
Text display for user-friendly operation and real-time monitoring
Advanced breaker automation and precise control
Auto-reclosure for up to 8 cycles
Sequential and evolving trip recognition
Synchro-check with ΔV, Δφ, and Δf measurement
Monitoring functions:
Measurement of operational values
Self-supervision of relay
Event buffer and fault protocols
Oscillographic fault recording
CB auxiliary contact monitoring
Communication interfaces:
Front interface for PC (DIGSI 4)
IEC 61850 Ethernet, IEC 60870-5-103, PROFIBUS-FMS/-DP, DNP 3.0
Rear service/modem interface
Applications: industrial automation, electrical substations, and breaker control
