Siemens Siprotec 4 SIPROTEC 7SA64 Protection Relay

SKU: 7SA64 Categories: ,

Description

Siemens Siprotec 4 SIPROTEC 7SA64 Protection Relay

The SIPROTEC 7SA64 distance protection relay is a universal relay for protection, control and automation with a graphic display on the basis of the SIPROTEC 4 system. Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs. High-speed tripping time-Impedance setting range allows very small settings for the protection of very short lines-Self-setting detection for power swing frequencies up to 7 Hz-Current transformer saturation detector prevents non-selective tripping by distance protection in the event of CT saturation.-Phase-segregated teleprotection for improved selectivity and availability-Digital relay-to-relay communication by means of an integrated serial protection data interface-Adaptive auto-reclosure (ADT)

PROTECTION FUNCTIONS

  • Non-switched distance protection with 6 measuring systems (21/21N)
  • High resistance earth-fault protection for single and three-phase tripping (50N, 51N, 67N)
  • Earth-fault detection in isolated and resonant-earthed networks
  • Tele (pilot) protection (85)
  • Fault locator (FL)
  • Power-swing detection/tripping (68/68T)
  • Phase-overcurrent protection (50/51)
  • Switch-onto-fault protection (50HS)
  • STUB bus overcurrent protection (50STUB)
  • Overvoltage/undervoltage protection (59/27)
  • Over/underfrequency protection (81O/U)
  • Auto-reclosure (79)
  • Synchro-check (25)
  • Breaker failure protection (50BF)
  • Thermal overload protection (49)

CONTROL FUNCTIONS

  • Commands for control of c.b. and isolators

MONITORING FUNCTIONS

  • Trip circuit supervision (74TC)
  • Self-supervision of the relay
  • Measured-value supervision
  • Event logging
  • Fault logging
  • Oscillographic fault recording
  • Switching statistics

FRONT DESIGN

  • Easy operation with numeric keys
  • Function keys
  • LEDs for local alarm
  • PC front port for convenient relay setting

COMMUNICATION INTERFACES

  • Front interface for connecting a PC
  • System interface for connecting to a control system via various protocols
    – IEC 60870-5-103 protocol
    – PROFIBUS-FMS/-DP
    – DNP 3.0
    – IEC 61850 Ethernet
  • 1 serial protection data interface for teleprotection
  • Rear-side service/modem interface
  • Time synchronization via – IRIG-B or DCF 77 or – System interface

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 – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.

 

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