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Multilin L30 Line Differential Relays

Multilin L30 Line Differential Relays
Multilin L30 Line Differential Relays
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Product Code : GE_L30
Product Description

Multilin L30

Line Current Differential System

The L30 is a cost-effective line current differentialprotection relay intended for sub-transmission and medium voltage lines andcables providing reliable and secure operation even under the worst case powersystem conditions. The L30 provides secure high-speed fault detection andclearance suitable for three-pole tripping applications. The L30 supportsinter-relay communications via direct fiber as well as standard RS422, G.703and C37.94 telecommunication interfaces. The L30 also provides synchrophasor measurementsover Ethernet per IEEE C37.118.


  • Overhead lines and underground cables of different voltage levels
  • Circuits with tapped transformer feeders
  • Suitable for three-terminal line configurations, with channel redundancy and direct transfer tripping (DTT)
  • Wide area system monitoring and control and using integrated protection and synchrophasor measurement
  • Applications requiring three-pole autoreclosing and independent synchrocheck supervision


Office No.-9, Plot 53/54, Sector-34, Space Heights, Near Tawa Hotel, Kamothe, Navi Mumbai - 410209, Maharashtra, India
Mr Piyush Lalchand Rathi (Partner)
Mobile :+919819614841, +919769207841
Mr. Dnyanesh Gawande (Partner)
Mobile :+919833686249