How Siemens 7SK80 Siprotec Compact Motor Protection Numerical Relay works

A multi-functional motor protection relay, the Siemens 7SK80 SIPROTEC Compact, is designed to protect asynchronous motors of all sizes. The relays are equipped with all of the necessary features to serve as a backup relay for a transformer differential relay.

Functions of 7sk80 siprotec compact motor protection numerical relay

  • Positive and reverse time-overcurrent assurance (stage/ground) (50, 50N, 51, 51N)
  • Directional time-overcurrent security, ground (67N)
  • Directional overcurrent security, ground (defi-nite/inverse)(67Ns, 50Ns))
  • Relocation voltage, zero-arrangement voltage (59N)
  • Trip-circuit oversight (74TC)
  • Inclination checking (37)
  • Temperature checking (38)
  • Warm over-burden security (49)
  • Load jam security (51M)
  • Locked rotor security (14)
  • Discontinuous ground shortcoming assurance
  • Directional discontinuous ground shortcoming assurance (67Ns)

Benefits of 7sk80 siprotec compact motor protection numerical relay

  • Pluggable current and voltage terminals
  • Double information edges settable utilizing DIGSI (3 phases)
  • Optional current transformer esteems (1 A/5 A) settable utilizing DIGSI
  •  9 programmable capacity keys
  • 6-line show
  • Cushion battery interchangeable from the front
  • USB front port
  • 2 extra correspondence ports
  • Coordinated switch for minimal expense and repetitive optical Ethernet rings
  • Ethernet repetition conventions RSTP, PRP and HSR for most noteworthy accessibility
  • Hand-off to-hand-off correspondence through Ethernet with IEC 61850 GOOSE
  • Millisecond-precise time synchronization through Ethernet with SNTP (over Port An or Port B)

Hardware of  7sk80 siprotec compact motor protection numerical relay

  • 4 current transformers
  • 0/3 voltage transformers
  • 3/7 double sources of info (edges configurable utilizing programming)
  • 5/8 double results (2 changeover)
  • 0/5 RTD inputs
  • 1 life contact
  • Pluggable current and voltage terminals.

 With modest area requirements, it’s ideal for protection in distribution networks and industry. SIPROTEC Compact offer a wide variety of capabilities in a surprisingly small and space-saving package. A single SIPROTEC Compact provides protection functionality for any conceivable issue, whether as primary or backup protection. And it can go even further: it can help with the substation’s control, automation, and monitoring tasks.

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