Project Description

Teleprotection

Protective relays communicate with each other to clear faults faster, increase fault sensitivity, and restore power quicker. Select SEL products and technology to implement reliable teleprotection.

Related Products

SEL-2595 Teleprotection Terminal

Securely transfer contacts through high-speed IEEE C37.94 optical fiber interface. Use the SEL-2595 Teleprotection Terminal to send and receive up to eight relay contacts directly over a pair of optical fibers or through a digital T1 or SONET multiplexer.

SEL-2100 Logic Processor

The SEL-2100 Logic Processor interconnects as many as 15 MIRRORED BITS® devices. Combine the resulting 120 inputs and outputs using SELOGIC® control equations to implement fast, flexible bus protection, bus sectionalizing, and breaker failure protection.

SEL-2505 Remote I/O Module

The SEL-2505 Remote I/O Module has eight digital inputs, eight digital outputs, and a fiber-optic communications port. Use two optical fibers instead of 32 wires between outdoor or remote equipment and the control building to reduce costs, improve safety, and boost reliability.

SEL-2506 Rack-Mount Remote I/O Module

The SEL-2506 Rack-Mount Remote I/O Module has eight digital inputs, eight digital outputs, and a fiber-optic communications port. Connect an SEL-2506 to a fiber-optic port or transceiver on a protective relay to add digital I/O. Or, wire the SEL-2506 I/O to relay I/O to add SEL Mirrored Bits® teleprotection.

Comparison

2505 2506 2595
Save Wiring Via I/O Multiplexing
I/O for SEL Relays/SEL-3530/SEL-2100 A A
Transfer I/O to SEL-2505/2506
Transfer I/O to SEL-2594/2595
Teleprotection
Improve Safety With Optical Fiber
Surface-/Wall-Mount
Rack-Mount + +
Panel-Mount + +
Projection Panel-Mount + +
User-Configurable Labels
Screw-Terminal Connectorized Blocks
Digital Inputs (DI) Base 8 8 8
DI Maximum 8 8 8
Digital Outputs (DO) Base 8 8 8
DO Maximum 8 8 8
SEL Mirrored Bits
IEEE C37.94
Standard Feature
+ Model Option
A With SEL-3044 Encryption Card Option With compatible SEL fiber-optic transceiver or interface option or processor.