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Siprotec 7SD52/53 line differential protection Relay, siemens siprotec relay

Siprotec 7SD52/53 line differential protection Relay, siemens siprotec relay
Siprotec 7SD52/53 line differential protection Relay, siemens siprotec relay
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Product Code : 7SD52
Brand Name : SIEMENS
Price And Quantity
  • Minimum Order Quantity
  • 1 Unit
  • Price
  • 1 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/under voltage protection (59/27)
  • Over/under frequency 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
Trade Information
  • FOB Port
  • Mumbai
  • Payment Terms
  • Letter of Credit (L/C), Cheque, Cash in Advance (CID), Cash Advance (CA), Cash on Delivery (COD)
  • Delivery Time
  • 6-8 Week
  • Main Domestic Market
  • All India


Office No.-9, Plot 53/54, Sector-34, Space Heights, Near Tawa Hotel, Kamothe, Navi Mumbai - 410209, Maharashtra, India
Mr Piyush Lalchand Rathi (Partner)
Mobile :+919819614841, +919769207841
Mr. Dnyanesh Gawande (Partner)
Mobile :+919833686249