Functions of Siemens Reyrolle 7SR224 Directional Overcurrent Protection Relay

Siemens 7SR224 Relay

Siemens 7SR224 Relay series transfers incorporate for directional control of three-stage overcurrent and earth issue usefulness and commonly introduced as a fundamental regulator for a shaft mounted recloser. The regulator offers a coordinated auto-reclose answer for use on OHL feeders.The hand-off usefulness permits exceptionally adaptable settings for current and time reviewing making it viable with a wide range of overcurrent protections.Siemens 7SR224 Relays have four current and four voltage inputs and are housed in E10 cases.Integrated rationale is given to permit the ideal arrangement of hand-off usefulness with the transfers simple information sources and parallel info/yield circuits.Protection, instrumentation and metering usefulness is open through information comms channel(s). A front USB port for neighborhood PC association and back electrical RS485 port for far off association are given as standard, extra ports are accessible as choices.

Protection functions of siemens reyrolle 7sr224 directional overcurrent protection relay:-

  • Siemens reyrolle 7sr224 directional overcurrent protection relay protects from Thermal Overload
  • These relays provide protection from earth fault, high impedance REF, negative phase sequence voltage, voltage controlled overcurrent, directional control of overcurrent
  • Siemens 7SR224 Relay provides protection from undercurrent & broken conductors.
  • Over-current relay provides protection from Negative Phase Sequence Overcurrent

Supervision functions of over current relay:-

  • CT Supervision 
  • Trip & Close Circuit Supervision 
  • VT Supervision 
  • Inrush Detector 
  • Circuit Breaker Fail 

Monitoring functions of Siemens 7SR224 Relay:-

  • Primary/Secondary Current Phases and Earth Direction
  • Primary/Secondary Line and Phase Voltages
  • Apparent Power and Power Factor
  • Real and Reactive Power
  • W Hr & VAr Hr Forward and Reverse
  • Historical Demand Record
  • Positive Phase Sequence (PPS) Voltage & Current
  • Negative Phase Sequence (NPS) Voltage & Current
  • Zero Phase Sequence (ZPS) Voltage
 

The thorough scope of Siemens 7SR224 Relay items gives the all-out assurance necessities of appropriation markets and modern applications – going from overcurrent security through transformer insurance and voltage control to a full range of helper and excursion transfers. The portfolio incorporates numerous popular items, for example, ‘Argus”, ”Duobias “,”Solkor “,”Rho “, and so on Through progressive ages, Reyrolle mathematical items have been created to build worth to framework administrators. 

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