Teleprotection
Ethernet plus IEEE C37.94 Optical

Features & Highlights:

• Unrivaled Speed, Security and Reliability
• Bi-directional transmission of 8 Binary Command Inputs and 8 Binary Command Outputs
• Dual Direction Teleprotection with Teleprotection Command Distribution
• 8 Channels Trip Counter Display and Alarm Extension Unit
• Compact, standard 19-Inch Rack-mountable chassis
• Full Duplex Operation, Automatic loop test facility
• User programmable to support “Direct Tripping”, “Permissive Tripping” and “Blocking” Protection Schemes. Default “Direct Tripping”
• Compliant with IEC 60834-1 and all applicable sections of IEC 60834-2 standards
• SNMPv2 / SNMPv3 management protocol for management and monitoring
• Network interface options:
• IEEE C37.94 Optical; Ethernet / IP/MPLS / MPLS-TP with 1+1 redundant path protection / route protection options
• Substation interface options:
• 8 Binary Commands
• Available in 24 VDC, 48V DC, 110V DC, 220V DC, 250V DC, configurations.

Performance:

• Less than 2ms command transfer time
• Less than 4ms relay operating time
• Less than 5ms back-to-back operating time (including relay operating time) over IEEE C37.94 Optical Interface
• Less than 5ms back-to-back operating time (including relay operating time) over an Ethernet / IP/MPLS / MPLS-TP Interface.

Flexibility and User Programmability:

• User programmable input command sampling time for error resistant command inputs
• User programmable output command relay deactivation time.

Smart Grid Ready:

• Network Interfaces: IEEE C37.94 Optical, as well as IP/MPLS / MPLS-TP Interface redundant transmission link options
• Centralized NMS option for remote monitoring and management of more than 2,000 units from central site over an IP network
• Assignable user assigned access levels for configuration and monitoring
• Secure password control
• Encrypted Password Protection
• Maintains logs of all successful and un-successful access attempts
• User programmable “Input” Command sampling time and “Output” Command holding time:
• Input Sampling Time - Sets the “Sampling Time” of the INPUT Pulse
• Output Command holding time is the Relay Deactivation Time which sets the duration of the OUTPUT Pulse
• Complies with all relevant Teleprotection Standards and Regulatory Compliances.

Trip Counter Display Panel and Alarm Extension Unit:

• The “Trip Counter & Alarm Display” unit shows the total number of“Trip Input / Trip Receive” and “Trip Output / Trip Send” commands on each of the 8 Teleprotection channels. A manual display counter reset option is also provided which may be enabled or disabled by the system administrator.
• Trip Counter Display and Alarm Extension Unit is designed to function as an optional extension of the Teleprotection Equipment to provide 8 Channels, Digital Trip Counter Display in addition to providing up to 8 External Relay Alarm outputs.
• The Trip Counter Display and Alarm Extension Unit may be either powered from the Teleprotection Equipment, or directly from a 48V DC, 110V DC, 220V DC or 250V DC power source. 1+1 Redundant Power is also offered as an option.

Command Transfer Time (including relay operating time):

Management and Monitoring:

• Serial RS232 and USB interfaces for local terminal access
• 10/100BaseT Ethernet Interface for remote access over an IP network
• Encrypted Password Protection
• Telnet (with clear text disable option)
• SSH - Secured remote access using Secure Shell Protocol over IP links
• SNMPv2 / SNMPv3 Traps and NMS for secure, real time remote monitoring
• Centralised NMS option for remote monitoring and management of up to 2,000 units from central site over an IP network
• Automatic Link Test feature – link testing at user programmable periodical intervals
• Visual I/O status – LED Display
• Dry contact external alarm relay to connect an external alarm on an annunciator panel, which can be wired up for either NO or NC condition.

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.