Teleprotection with E1, IEEE C37.94, IEC-61850 GOOSE

VCL Products > Teleprotection > VCL-TP, E1 / IEEE C37.94 Teleprotection 8 Binary Commands

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.

Features
Specifications

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