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L-PRO 4000* Transmission Line Protection Relay
L-PRO Model 4000

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LATEST APPLICATION NOTES


NEWS

EVENTS

Introducing the 4000 series of Protective Relays and Recorders

  • built on a contemporary new substation hardened hardware platform and powered by a new processor
  • embedded with IEC 61850 station bus communication protocol
  • with enhanced user configurable DNP mapping list
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Smart solutions for your power system protection, monitoring and control needs.

ERLPhase protection relays and power system recorders use the best in class technology to deliver high quality and reliable products. With innovative design and software, our products give maximum user configurability and are intuitively easy to use.

A History of Intuitive Solutions

ERLPhase prides itself in being an Idea leader. We were the first to introduce key applications such as transformer loss of life monitoring, and dynamic swing record capture with cross triggering.
TESLA - Transmission and distribution fault, disturbance recording and phasor measurement TESLA - Transmission and distribution fault, disturbance recording and phasor measurement TESLA - Transmission and distribution fault, disturbance recording and phasor measurement TESLA - Transmission and distribution fault, disturbance recording and phasor measurement TESLA - Transmission and distribution fault, disturbance recording and phasor measurement TESLA - Transmission and distribution fault, disturbance recording and phasor measurement TESLA - Transmission and distribution fault, disturbance recording and phasor measurement Transmission line protection B-PRO - Transmission and distribution bus and backup protection T-PRO - Transformer protection and load management B-PRO - Transmission and distribution bus and backup protection TESLA - Transmission and distribution fault, disturbance recording and phasor measurement B-PRO - Transmission and distribution bus and backup protection F-PRO - Feeder line protection & load management T-PRO - Transformer protection and load management

Poised for a Global Footprint

Established in 1993, ERLPhase has its Technology, Engineering and Manufacturing base in North America, and Marketing presence across the Americas.

ERLPhase is now a wholly owned subsidiary of Easun Reyrolle Ltd., which acquired the Relay and Recorder division of NxtPhase Corporation on June 28, 2007.

ERLPhase products will now be available to the global market through Easun Reyrolle’s international marketing organization, ERLMint.
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