Operation Principle; Signals - ABB 615 series Technical Manual

Hide thumbs Also See for 615 series:

Table of Contents

Basic functions

The typical additional operate time increase is +2 ms for all the receiver

application functions (using either local or remote samples) when SMV is

Operation principle

The ALARM in the receiver is activated if the synchronization accuracy of the sender or the

receiver is either unknown or worse than 100 ms. The output is held on for 10 seconds after

the synchronization accuracy returns within limits.

ALARM is activated when two or more consecutive SMV frames are lost or late. A single

loss of frame is corrected with a zero-order hold scheme. In this case, the effect on

protection is considered negligible and the WARNING or ALARM outputs are not activated.

The output is held on for 10 seconds after the conditions return to normal.

The SMV Max Delay parameter defines how long the receiver waits for the SMV frames

before activating the ALARM output. This parameter can be accessed via Configuration/

System/Common. Waiting of the SMV frames also delays the local measurements of the

receiver to keep them correctly time aligned. The SMV Max Delay values include

sampling, processing and network delay.

The WARNING output in the receiver is activated if the synchronization accuracy of the

sender or the receiver is worse than 4 μs. The output is held on for 10 seconds after the

synchronization accuracy returns within limits.

The WARNING output is always internally active whenever the ALARM output is active.

RESTVTR Input signals

RESTVTR Output signals

1MAC059074-MB A

IEC 61850-9-2 residual

615 series ANSI

Technical Manual

Table of Contents