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Home » Products » SIEMENS Siprotec Protection Relay » 7SD52 Line Differential Protection Relay

7SD52 Line Differential Protection Relay

7SD52 Line Differential Protection Relay
7SD52 Line Differential Protection Relay
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Product Code : 7SD52
Brand Name : SIEMENS
Price And Quantity
  • Minimum Order Quantity
  • 1 Piece
  • Unit of Measure
  • Piece/Pieces
  • Price
  • 1 Lakh INR
Product Description

Functions Protection Functions

·         Differential protection with phase segregated measurement (87L, 87T)

·         Restricted ground-fault protection (87N) if a transformer is within the protection zone

·         Sensitive measuring stage for high-resistance faults

·         Non-switched distance protection with 6 measuring systems (21/21N)

·         High resistance ground (earth)-fault protection for single and three-pole tripping (50N/51N/67N)

·         Phase-selective intertripping (85)

·         Ground-fault detection in isolated and resonant-grounded networks

·         Tele (pilot) protection (85/21, 85/67N)

·         Weak-infeed protection (27WI)

·         Fault locator (FL)

·         Power swing detection/tripping (68/68T)

·         3-stage overcurrent protection (50, 50N, 51, 51N)

·         STUB bus protection (50 STUB)

·         Switch-onto-fault protection (50HS)

·         Over/undervoltage protection (59/27)

·         Over/underfrequency protection (81O/U)

·         Auto-reclosure (79), Synchro-check (25)

·         Breaker failure protection (50BF)

·         Overload protection (49)

·         Lockout function (86)

Control functions

·         Commands for control of circuit-breakers (isolators)

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


RELISERV SOLUTION
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RELISERV SOLUTION
Office No.-9, Plot 53/54, Sector-34, Space Heights, Near Tawa Hotel, Kamothe, Navi Mumbai - 410209, Maharashtra, India
Phone :91-22-64525500
Mr. Piyush Lalchand Rathi (Partner)
Mobile :+919819614841, +919769207841
Mr. Rajesh Sawale
Mobile :+919819614841, +919769207841