Teleprotection
E1 / IEEE C37.94 Teleprotection 8 Binary Commands

VCL Products > Teleprotection > VCL-TP, E1 / IEEE C37.94 Teleprotection 8 Binary Commands
IEEE C37.94 over IP/MPLS - Front
IEEE C37.94 over IP/MPLS
IEEE C37.94 over IP/MPLS
IEEE C37.94 over IP/MPLS - Front
IEEE C37.94 over IP/MPLS
IEEE C37.94 over IP/MPLS - Back

VCL-TP, E1 / IEEE C37.94 Teleprotection
8 Binary Commands with IEC-61850 GOOSE

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VCL-TP, Teleprotection Equipment is an extremely reliable and flexible product that is available with a choice of E1 or IEEE C37.94 Transmission Interfaces which support both 8 Binary Protection Commands as well as IEC-61850 GOOSE Digital (PSCH A and PSCH B) Protection Commands. The equipment is powered by 1+1 redundant power supplies and supports an 8 Channel Digital Trip Counter Display Panel. VCL-TP, Teleprotection Equipment may be used independently in a standalone point-to-point application over a IEEE C37.94 compliant, optical transmission link, or over an E1 / SDH network.

VCL-TP, Teleprotection Equipment offers up to 8, 2-way independent command channels which can be operated selectively; or simultaneously; using Binary as well as IEC-61850 GOOSE Protection Schemes (PSCH A and PSCH B). The VCL-TP, Teleprotection Equipment is suitable for deployment in Sub-Stations that use “Binary” Commands as well as “GOOSE” Protection Schemes without requiring any modifications in system hardware or software.

Features and Highlights

  • Compact, standard 19-Inch Rack-mountable, 3U high chassis
  • Distance Teleprotection applications
  • Ready for use in IEC-61850 compliant Digital Sub-Stations with GOOSE and well is in “Legacy” Sub-Stations with Binary Commands
  • User programmable for Direct Tripping, Permissive Tripping and Blocking Protection Schemes
  • Compliant with IEC 60834-1 and IEC 834-1 specifications and standards for reliability
  • Optical Interface fully compliant with IEEE C37.94 for error resistant transmission
  • Use in a Standalone, Point-To-Point application
  • Use in a stand-alone mode over an IEEE C37.94 compliant optical transmission link, or over an E1 SDH or PDH data network
  • IRIG-B and NTP Time Synchronization
  • Available with Trip Digital Display Counters (8/16) with 8 user configurable External Relay Alarm outputs
  • Full Duplex Operation
  • Available with 48V DC, 110V DC, 220V DC and 250V DC command and switching voltage options
  • Option of 1+1, Redundant Power Supply
  • Available with 48V DC, 110V DC, 220V DC and 250V DC power supply options
  • Immunity to Voltage Dips, Short Power Supply Interruptions and Voltage Variations as per IEC 61000-4-11 specifications.

Network Side (Transmission) interface options:

  • IEEE C37.94 compliant Multi-Mode optical fiber interface for transmission over short-reach multi-mode optical fiber links
  • IEEE C37.94 compliant Single-Mode optical fiber interface for transmission over long-reach, single-mode optical fiber links (≤ 40 KM, ≤ 80 KM, ≤ 120 KM, ≤ 150 KM)
  • E1, 2.048Mbps, G.703 interface option for transmission over E1 links.

Sub-Station Side Interface Options:

  • Bi-directional Transmission of 8 binary command Inputs and 8 binary command Outputs
  • 110V DC and 250V DC command voltage and switching voltage options
  • IEC-61850, GOOSE Interface (PSCH A and PSCH B)
  • Concurrent GOOSE Subscriber and Server functions
  • Converts GOOSE Trip Message to Binary Commands
  • Converts Binary Command to GOOSE Trip Messages
  • Converts GOOSE Trip Messages for transmission over C37.94 Optical / E1 (TDM) Interfaces

Performance:

  • Less than 2ms command transfer time
  • Less than 3ms relay operating time
  • Less than 5ms back-to-back operating time (including relay operating time) in 2.048Mbps, E1 interface mode.
  • Less than 6ms back-to-back operating time (including relay operating time) in IEEE C37.94 Optical mode

Flexibility and User Programmability:

  • User programmable parameters for “Input” command sampling time and “Output” “relay deactivation” time
  • Input Sampling Time - Sets the “Sampling Time” of the INPUT Commands
  • Output “Relay Deactivation” Time - Sets the “Minimum Deactivation Time” of the OUTPUT Commands.

Event and Alarm Logging:

  • Time-Stamped Alarm Logging.
  • Time-Stamped Event Logging.
  • IRIG-B time / NTP synchronization option to synchronize time-stamps with GPS.

Maintenance:

  • Manual Loop Test: This feature initiates a “Manual Loop-Test” and checks the integrity of the transmission link that interconnects the “Local” Teleprotection Terminal and the “Remote” Teleprotection Terminal
  • Automatic Loop Test: The Automatic Link Test feature automatically initiates “Periodic Loop Tests” at user programmed intervals and checks the integrity of the transmission link between the “Local” Teleprotection Terminal and the “Remote” Teleprotection Terminal
  • Delay Measurement: This feature measures the transmission delay on the transmission link interconnecting the “Local” and the “Remote” Teleprotection Terminals

Access and Monitoring:

  • Command Line Interface (English text commands).
  • Telnet
  • SSH
  • SNMPv2 Traps.

Operations and Management (OAM):

  • RS232 serial interface for local terminal access
  • USB serial interfaces for local terminal access
  • 10/100BaseT Ethernet Interface for remote access over an IP network.

Management and Monitoring:

  • RS232 serial, USB serial interfaces for local terminal access
  • 10/100BaseT Ethernet Interface for remote access over an IP network
  • Encrypted Password Protection
  • Maintains an access log of over 10,000 most recent entries for security audit
  • Telnet - Remote access over IP links
  • SSH - Secured remote access using “Secure Shell Protocol” over IP links
  • Complaint with IEC-61850 Monitoring and Management Systems
  • 8, Dry contact external alarm relay to connect external alarms on an annunciator panel to extend audio and / or visual alarms – Optional
  • Trip Counter Display