RCS-9622 Transformer Management Relay

The RCS-9622 transformer management relay is designed for the fast and selective short-circuit protection, control and monitoring of transformers (substation-used or grounding transformers) in impedance grounded or Peterson coil grounded or......

  • Overview
  • Functions
  • Features

The RCS-9622 transformer management relay is designed for the fast and selective short-circuit protection, control and monitoring of transformers (substation-used or grounding transformers) in impedance grounded or Peterson coil grounded or ungrounded- system. The relay is suited to be flush mounted into a control panel.

Protection and Control
  • Current differential protection. (87T)
  • Unrestrained current differential protection. (87UT)
  • Zero-sequence differential current protection. (87GT)
  • Non-directional overcurrent protection. (50P/51P)
  • Time zero sequence overcurrent protection. (50N)
  • Negative sequence overcurrent protection. (51Q)
  • Voltage control element. (VCE)
  • Earth fault protection. (64)
  • Thermal overload supervision. (49)
  • Mechanical protection. (MR)
  • Voltage and current drift auto adjustment.
  • Self diagnostic.
  • Voltage transformer supervision. (VTS)
  • Current transformer supervision. (CTS)
  • Rear communication ports: printer.
  • Rear communication ports: RS-485/Ethernet.
  • Time synchronization port.

Management
  • Circuit breaker status monitoring.
  • Remote control and measurements.
  • Tripping/Closing circuit supervision.
  • Multiple setting groups.
  • 64 Trip records.
  • 64 Self-check alarm records.
  • 64 Operating alarm records.
  • 64 User operating records.
  • 8 Disturbance records FR.
  • 256 SOE records, latest records of following elements state changing: operating abnormality alarm elements, self-check alarm elements, protection elements, binary input elements
  • Circuit breaker operating time monitoring.

Auxiliary Testing
  • Virtual SOE records generation.
  • Virtual measurement values generation.
  • Virtual tripping reports generation.
  • Virtual fault wave records generation.

  • On the premise of 24 samples per cycle, all data measurement, calculation and logic discrimination can be finished within one sampling period. The event recording and protection logic calculation can be finished simultaneously.
  • Definite time and inverse time of overcurrent protection are both provided.
  • Definite time of negative sequence overcurrent protection is provided for the high voltage side of transformer.
  • Definite time and inverse time of negative sequence overcurrent protection are both provided for the low voltage side of transformer.
  • Overcurrent protection can be controlled by voltage element.
  • It constantly measures and calculates a large amount of analog quantities, such as phase-to-phase voltage, phase current, neutral current, active power, reactive power, power factor and frequency.
  • It can monitor and record the operating times of opening/ closing circuit breakers.
  • Multiple GPS clock synchronization, including message, pulse per second, and IRIG-B synchronization.
  • It is equipped with two EIA RS-485 standardized interfaces and two Ethernet interfaces. Two alternative designs of Ethernet interfaces are provided: electrical or optical.
  • It can communicate with SAS or RTU using IEC60870-5-103 and MODBUS communication protocols.
  • Fault and disturbance record function: 64 latest fault reports, 8 latest fault wave (up to 15s), 64 user operating records of users to equipment, and 256 records of time tagged sequence of event can be recorded.