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Multi-function Transmission Line Protection Relay Type : L-PRO 4000
     
   

 

L-PRO 4000 is a digital, microprocessor-based line distance protection system that provides comprehensive distance based line protection for medium to extra-high-voltage transmission lines. Apply the L-PRO 4000 system for high-speed distance and directional protection and complete control in multi-breaker applications typically found in ring or breaker-and-a-half substation arrangements.

Applications

  • Primary and backup protection on transmission and sub-transmission lines (using pilot protection schemes)
  • Overhead lines and underground cables
  • Fully integrated breaker protection and control for 2 breakers
  • Single and multi breaker applications (i.e. ring-bus and breaker-and-a-half capability, including breaker failure and individual breaker monitoring requiring single pole/three-pole auto-reclosing)
  • Backup protection for generators, transformers and reactors

 

Features and Benefits

  • Ideal for multi-circuit line applications (to monitor mutual coupling via additional VT and CT inputs)
  • Ultimate flexibility with selectable “Single Pole”, “3 Pole” and “Single and 3 Pole” tripping and reclosing
  • Competitive operating speed (1.0 to 1.3 cycle operation at 80% reach, ideal for transmission line applications)
  • Flexible Communications
    • State-of-the-art communications (2 rear ports, 100BASE-TX RJ-45 or 100BASE-FX 1300 nm multimode optical with ST style connector to accommodate the industry’s latest network-based communications)
    • Ethernet ports with 2 unique MAC addresses that easily accommodate network access security needs
    • Front panel USB and 100BASE-TX RJ-45 Ethernet port interfaces (readily accommodate modern standard laptops)
  • Reduced Cost
    • Substation automation cost – includes IEC61850 protocol to display and transfer operational data via local-area network (LAN) for local HMI and wide-area network (WAN) for remote monitoring SCADA
    • Substation engineering, installation and commissioning cost and times – IEC 61850 GOOSE messages communicate high-speed information between IED’s on the substation LAN (including transfer trips, interlocking, load-shedding, and commands)
    • Product setting time – 240 x 128 LCD graphical user interface provides convenient means to check/change specific settings and parameters
  • Improved Overall Response Time
    • Expedited response to systems events (11 generic front panel LEDs can be mapped to internal elements) allowing operators to quickly identify the cause of system event
     
  • Easy to Use
    • Flexible programmable logic for building customized schemes with ProLogic™ statements – 24 control logic statements (total of 192 statements)
    • User-friendly, Windows®-based relay setting and record analysis software
    • Enhanced DNP3.0 Level 2 SCADA communication protocol including user-selectable point lists, class support and multiple master station support
    • Exceptional fault recording capabilities with 96 s/cycle, all channels with events (best combination of waveform accuracy and file size)
 
Standard Features
 
IEC 61850 communication via optical portsFaster processing capability
Enhanced user configurable logicSingle pole trip and reclose
 
 
 
Qty. 
Documentation
Brochure
L_PRO_4000_line_protection_relay_ds.pdf

Manual
L-PRO 4000 Manual
 
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