Advanced AC Voltage Supervision Relay with Drawout enclosure & Fault, event Recording-CSEZEN-F 100-U

Advanced AC Voltage Supervision Relay with Drawout enclosure & Fault, event Recording - CSEZEN-F 100-U

FEATURES
  • Over-Voltage & Under-Voltage Protection (ANSI 59 / 27): Independent two-stage monitoring (U>, U>> and U<, U<<) with individual delay and trip timers.
  • Neutral Displacement / Residual Over-Voltage (ANSI 59N): Operates on zero-sequence voltage, using either calculated internal figures or a direct external voltage transformer (VT) feed.
  • Voltage Unbalance Protection (ANSI 47): Utilizes internally calculated Negative Sequence Over-Voltage components to identify phase unbalance issues.
  • Positive Sequence Under-Voltage: Monitors sequence drop-offs to prevent motor stalls or system damage.
  • Analog Inputs: 4 dedicated Voltage Analog Inputs.
  • Programmable I/O: 8 Digital Inputs (DI) and 8 Relay-type Digital Outputs (DO) manageable via an assignment matrix.
  • Local Human-Machine Interface (HMI): A 16×2 alphanumeric LCD display combined with 5 front-panel push buttons.
  • LED Signaling: 16 total LEDs (6 fixed for Pickup/Trip notification and 10 user-assignable LEDs).
  • Event Logging: Stores the last 500 event records with non-volatile date and time stamps002E
  • Fault Logging: Retains details on the last 20 fault occurrences, saving specific line-to-line/line-to-neutral voltages and the exact type of fault.
  • Disturbance Recorder: Saves a maximum of 1200 cycles of oscilographic pre-fault and post-fault records in the standard COMTRADE format (IEC 60255-24).
  • Front Access: Type-A USB port for rapid PC interaction and diagnostics.
  • Rear Access: RS-485 port supporting Modbus RTU or IEC 60870-5-103 protocols.
  • Modern Ethernet Automation: RJ-45 or dual fiber-optic ports supporting IEC 61850 (Edition 2), featuring GOOSE peer-to-peer messaging, and network redundancy protocols like PRP (Parallel Redundancy) and HSR (High Availability Seamless Redundancy)

CSEZEN-F-100-U Series relays provide reliable and high-performance protection, serve as a primary or backup protection unit for feeders, transformers, and distribution equipment. The CSEZEN-F-100-U is a compact, microprocessor-based numerical feeder protection and monitoring relay for AC voltage supervision with universal application; it is designed to protects the three-phase network against over, under voltage, unbalance or earth faults in isolated networks and is normally used in utility substations, public distribution networks, and industrial electrical systems. Besides the pure RMS value measurement of the line voltage the CSEZEN-F-100-U can detect the phase sequence, voltage unbalance and earth faults.

APPLICATION:

The relay serves as a controlling, protecting, and monitoring element in the following areas:

  • Power Networks: Industrial distribution setups, public utility networks, and electrical substations.
  • System Schemes: Integrates seamlessly into safety schemes protecting feeders, power transformers, and generators.
  • System Layouts: Native software configuration options make it suitable for both Star and Delta wiring configurations.
  • Enhanced Operator Safety: The draw-out modular design permits secure removal, servicing, and testing of the main chassis without risking open circuit damage.
  • Enhanced System Diagnostics: Detailed fault logging, event tracking, and waveform recording allow rapid root-cause analysis after trips.
  • High Interoperability: Support for standard protocols (IEC 61850, Modbus, IEC 60870-5-103) ensures smooth SCADA and substation automation integration.
  • Reliable Hardware Maintenance: The modular draw-out unit allows quick testing or replacement without disturbing fixed panel wiring.
  • Flexible Power Options: Supports universal auxiliary supply ranges (L,H and U models) to match various AC/DC substation power supplies.