Teleprotection / Digital Protection Signaling

Teleprotection over IP/MPLS, MPLS-TP

Teleprotection over IP/MPLS, MPLS-TP

Description

E1 plus IP/MPLS (1+1 Protected E1 + IP/MPLS Transmission Network Interfaces) with automatic link failure detection and failover protection.

In the event that either one of the transmission link fails, the equipment detects transmission link failure and automatically switches to secondary network interface. Both E1 and IP/MPLS links function concurrently and independently of each other. This ensures that protection is never lost at any point of time due to the failure of either of the transmission interfaces or the transmission links.

VCL-TP, Teleprotection over IP/MPLS – 10/100BaseT (Electrical) or 100BaseFX (Optical) Ethernet Interface incorporates the same level of “reliability” and “dependability” that the users have come to expect of the C37.94 based communication interface. Additionally, the VCL-TP, Teleprotection over IP / MPLS Equipment provides un-paralleled security, speed as well as all the advantages of operating in a “Digital Sub-station” environment.

Available with:

  • 10/100BaseT (Electrical) Interface to provide Teleprotection over IP/MPLS link.
  • 100BaseFX (Optical) Ethernet Interface to provide Teleprotection over IP/MPLS link.

VCL-TP, Teleprotection Equipment offers up to 4/8, 2-way independent command channels, operated selectively or simultaneously over a wide choice and a variety of transmission interfaces.

Related Links

Transmission interface options include:


Network Side (Transmission) interface options:

  • IP/MPLS Network Interface to provide “Distance Protection” over IP/MPLS Network.
  • IP / MPLS Network Interface - Includes both 10/100BaseT (Electrical) Ethernet and 100BaseFX (Optical) Ethernet options.

Sub-Station Side Interface Options:

  • 10/100BaseT (Electrical) Interface to provide Teleprotection over IP/MPLS link.
  • 100BaseFX (Optical) Ethernet Interface to provide Teleprotection over IP/MPLS link.
  • Bi-directional Transmission of 4/8 command Inputs and 4/8 command Outputs.
  • 110V DC and 250V DC command voltage and switching voltage options.

Features and Highlights

  • IP/MPLS Network Interface to provide “Distance Protection” over IP/MPLS Network.
  • IP / MPLS Network Interface - Includes both 10/100BaseT (Electrical) Ethernet and 100BaseFX (Optical) Ethernet options.
  • Less than 6ms back-to-back operating time (including relay operating time) over IP/MPLS Interface
  • 4/8 independent-simultaneous command channels which may be configured to operate selectively or simultaneously over IP/MPLS Network
  • Compact, standard 19-Inch Rack-mountable, 3U high chassis
  • Distance Teleprotection applications over IP/MPLS
  • 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
  • Error resistant transmission
  • IRIG-B Time / NTP 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.

Performance:

  • Less than 2ms command transfer time.
  • Less than 4ms relay operating time.
  • Less than 6ms back-to-back operating time (including relay operating time) over IP/MPLS interface.

Flexibility and User Programmability:

  • User programmable parameters for “Input” command sampling time and “Output” command holding time.
  • Input Sampling Time - Sets the “Sampling Time” of the INPUT Commands.
  • Output Holding Time - Sets the “Holding Time” of the OUTPUT Commands.
  • Output Extend 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” 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 of the transmission link that interconnects the “Local” Teleprotection Terminal and the “Remote” Teleprotection Terminal
  • Delay Measurement This feature automatically initiates an end-to-end “Delay Measurement Test” between the “Local” and the “Remote” Teleprotection Terminal through the interconnecting transmission link.

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
  • SNMP Traps and NMS for real time remote monitoring and management over an IP network
  • 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