The L30 is a cost-effective line current differential protection relay intended for sub-transmission and medium voltage lines and cables providing reliable and secure operation even under the worst case power system conditions. The L30 provides secure high-speed fault detection and clearance suitable for three-pole tripping applications. The L30 supports inter-relay communications via direct fiber as well as standard RS422, G.703 and C37.94 telecommunication interfaces. The L30 also provides synchrophasor measurements over Ethernet per IEEE C37.118.

Key Benefits

• Proven current differential protection ensures secure high-speed tripping
• Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and flexible process bus support (IEC 61850-9-2LE, IEC 61869 or IEC 61850-9-2 Hardfiber) ensures interoperability, device managing optimization and reduced cost of ownership
• Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications
• Increased sensitivity through dynamic charging current compensation and communication channel asymmetry compensation
• Adaptive restraint characteristic provides excellent security against measurement errors including CT saturation
• Phasor Measurement Unit (synchrophasor) according to IEEE® C37.118 (2011) and IEC® 61850-90-5 support
• Advance Cyber security features “CyberSentryTM” that helps meet modern industry requirements
• Application flexibility with multiple I/O options including high density I/O, programmable logic, modularity, and specific customization
• An integrated large, full color display, provides real-time visualization and control of the protected bay, via a bay mimic as well as annunciator functionality and graphical visualization of phasors

Applications

• 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

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About Precise Module Ltd.

Our team specializes in sourcing discontinued and scarce automation components, and regardless of the year or scarcity of the part, we will find and deliver the spare parts you need so that your facility can be back up and running quickly. Our warehouses stock a wide range of automation and control components, and if you don't have what you need in stock, our team will search the globe to find the parts you need at the best price.

FAQ

Q: How about the warranty?

A: All goods have 1 year warranty.

Q: What about the delivery time?

A: Normally in 1-3days.

Q: Other suppliers have a better price than yours?

A: To create the greatest benefit for clients is our belief, if you have a better price, please let we know. We will try the best to meet your price and support you.

Q: What about the shipment?

A: We can arrange shipment by DHL, FedEx, UPS,TNT, EMS with competitive price, of course, customers can also use their own freight forwarders.

Q: How about the terms of payment?

A: Generally through T/T, Paypal and Western Union also accept.