ABB 1MRK505137-BEN Hardware description Line differential protection IED RED670

Hardware modules

Power supply module (PSM)

The power supply module is used to provide the correct internal voltages and full isolation between the terminal and the battery system. 

An internal fail alarm output is available.

Binary input module (BIM)

The binary input module has 16 optically isolated inputs and is available in two versions, 

one standard and one with enhanced pulse counting capabilities on the inputs to be used with the pulse counter function. 

The binary inputs are freely programmable and can be used for the input of logical signals to any of the functions.

They can also be included in the disturbance recording and event-recording functions. 

This enables extensive monitoring and evaluation of operation of the IED and for all associated electrical circuits.

Binary output modules (BOM)

The binary output module has 24 independent output relays and is used for trip output or any signal ling purpose.

Binary input/output module (IOM)

The binary input/output module is used when only a few input and output channels are needed. 

The ten standard output channels are used for trip output or any signalling purpose. 

The two high speed signal output channels are used for applications where short operating time is essential. 

Eight optically isolated binary inputs cater for required binary input information.

mA input module (MIM)

The milli-ampere input module is used to interface transducer signals in the –20 to +20 mA range

from for example OLTC position, temperature or pressure transducers.

The module has six independent, galvanically separated channels.

Optical ethernet module (OEM)

The optical fast-ethernet module is used to connectan IED to the communication buses 

(like the station bus) that use the IEC 61850-8-1 protocol. 

The module has one or two optical ports with ST connectors.

Serial SPA/IEC 60870-5-103 and LON

communication module (SLM)

The optical serial channel and LON channel module is used to connect an IED to the communication that use SPA,

 LON, or IEC60870–5–103. 

The module has two optical ports for plastic/plastic, plastic/glass, or glass/glass.

Line data communication module (LDCM)

The line data communication module is used for binary signal transfer. 

Each module has one optical port, one for each remote end to which the IED communicates.

Alternative cards for Long range (1550 nm single mode), Medium range (1310 nm single mode) and

Short range (900 nm multi mode) are available.

GPS time synchronization module (GSM)

This module includes the GPS receiver used for time synchronization. 

The GPS has one SMA contact for connection to an antenna.

Transformer input module (TRM)

The transformer input module is used to galvanically separate and transform the secondary currents and voltages generated by the measuring transformers. 

The module has twelve inputs in different combinations.

High impedance resistor unit

The high impedance resistor unit, with resistors for pick-up value setting and a voltage dependent

resistor, is available in a single phase unit and a three phase unit. 

Both are mounted on a 1/1 19 inch apparatus plate with compression type termnals.