Siemens Siprotec 4 SIPROTEC 7SD5 Protection Relay

Siemens Siprotec 4 SIPROTEC 7SD5 Protection Relay – 4xI 4xV, text or graphical display, up to 6 ends, 1-/3-pole tripping.

The Siemens SIPROTEC 7SD5 relay is a cutting-edge Siemens protection solution. Specifically, it is designed for reliable line differential and distance protection in industrial and utility applications. Moreover, ideal for industries, utilities, and EPC contractors in Mumbai, this relay ensures robust protection and operational efficiency.

With support for up to six line ends and flexible 1-/3-pole tripping. In addition, the SIPROTEC 7SD5 delivers precise fault detection and rapid response to safeguard your network. It features both text and graphical displays. Consequently, this makes monitoring and configuration simple for engineers and operators.

Equipped with 4xI 4xV inputs, this relay provides high-performance measurement capabilities, ensuring accuracy and stability in complex protection schemes. Whether you need a single-pole solution or full three-pole tripping, the SIPROTEC 7SD5 adapts seamlessly to your protection requirements.

Available through trusted suppliers in Mumbai, the SIPROTEC 7SD5 combines Siemens reliability with local accessibility.

Monitoring Functions

• Self-supervision of relay and protection data (R2R) communication
• Trip circuit supervision (74TC)
• Measured-value supervision
• Oscillographic fault recording
• Event logging/fault logging
• Switching statistics

Front Design

• User-friendly local operation
• PC front port for relay setting
• Function keys and 14 LEDs f. local alarm

Communication Interfaces

• 2 serial protection data (R2R) interfaces for ring and chain topology
• Front interface for connecting a PC
• System interface for connection to a control system via various protocols
  • IEC 61850 Ethernet
  • IEC 60870-5-103
  • PROFIBUS-FMS/-DP and DNP 3.0
• Rear-side service/modem interface
• Time synchronization via IRIG-B or DCF77, or system interface

Siemens SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide