ABB Relion 670 Series Application Manual page 91

1MRK 505 382-UEN E
Example of transmission delay and asymmetry information on the local
HMI
0.4 ms transmission delay and 3.5 ms asymmetric delay in test set-up
IEC08000440 V1 EN-US
Figure 87: Example test set-up with specified transmission and asymmetric delays
Table 27:
Echo mode
Setting in IED A
AsymDelay
Table 28: Transmission and asymmetric delay values in echo mode
Echo mode
Service values in IED A
TransmDelay
AsymDelay
Table 29: Actual transmission and asymmetric delay values in GPS mode
GPS mode
Service values in IED A
TransmDelay
AsymDelay
Table 30: Information available on the local HMI (2Mb LDCM)
LHMI info
Setting/signal
NoOfShInterr
NoOfMedInterr
NoOfLongInterr
CommStatus
COMFAIL
Table continues on next page
Communication set-up, 670/650 series
Application Guide
IED A
Asymmetric delay settings in echo mode
–3.1 ms
0.4 ms
–3.1 ms (same as set
value)
0.4 ms
–3.1 ms
Normal
(example)
50
10
5
OK
0
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Setting in IED B
AsymDelay
Service values in IED B
TransmDelay
AsymDelay
Service values in IED B
TransmDelay
AsymDelay
Faulty Specification
(example)
- Counter
- Counter
- Counter
NoRXD Status
1 Status
Communication set-up
IED B
IEC08000440-1-en.vsdx
3.1 ms
3.5 ms
3.1 ms (same as set
value)
3.5 ms
3.1 ms
Description
No of short interruptions, 20-50 ms
No of medium interruptions, 50-200 ms
Number of long interruptions, > 200 ms
Communication status/no of received
messages
Communication failure, differential
protection blocked. Analog values are
substituted with zero, ref. disturbance
recorder
Section 5
85