Teleprotection
E1 / IEEE C37.94 Teleprotection 8 Binary Commands

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