Engineering verification - Arc protection - Bay control and measurement - Motor protection - Transformer protection - 2 winding - Busbar differential protection (low impedance) - Feeder protection - Voltage regulation - Busbar protection (voltage and frequency) - Capacitor bank protection - Interconnection protection - Power management/Load shedding - Back-up protection - Engineering Manual - SSC600 Smart substation control and protection - 1.5 - IEC - ANSI - 17.04.2023

This chapter gives a checklist of items to check and confirm during the engineering phase. The complete test specification depends on the network topology and used system components.

Table 1. SMV sender (only in IEDs sending SMV, not in SSC600)

Item	Description	Checked
Missing sender	Disable the SMV sender via Configuration/Communication/ Ethernet/SMVSENDER and verify the expected handling in receivers. In the SMV receives's Measurement view, the voltage values should be in brackets indicating invalid or questionable measurement. If The SMVSENDER is disabled from the LHMI, it can only be enabled from the LHMI. Thus, in this situation a configuration write from PCM600 does not enable the SMVSENDER.
Internal fault test	Force internal fault in the sender via Tests/IED test and check that the receiving devices behave as expected.

SMV receive monitored data is available in three locations.

• Monitoring/I/O status/Analog inputs
• Monitoring/IED status/SMV traffic
• Monitoring/IED status/SMV accuracy

Table 2. SMV receive

Item	Description	Checked
WARNING	WARNING (Monitoring/I/O status/Analog inputs/ Voltage(3U,VT)) works as specified in the Application Configuration tool. Necessary special handling considered in the Application Configuration tool logics. WARNING is active when the IED starts.
ALARM	ALARM (Monitoring/I/O status/Analog inputs/Voltage(3U,VT)) works as specified in the Application Configuration tool. Necessary special handling considered in the Application Configuration tool logics. ALARM is active when the IED starts.
Max delay	The maximum delay (Monitoring/IED status/SMV traffic) must be in all conditions smaller than the SV Delay parameter (Configuration/System). Larger values indicate configuration problems in the network or the need to change the SV Delay.
Average delay	The average delay (Monitoring/IED status/SMV traffic) variation is small in different network traffic setups. A large variation may indicate configuration problems in the network.
Measurement	In the SMV receives' Measurement view, the voltage values should be without brackets indicating good status. Brackets indicate questionable or invalid values. The SMV traffic delay (Monitoring/IED status/SMV traffic) value should be lower than the value of SV Delay (Max 6.48ms).

Table 3. Time synchronization

Item	Description	Checked
Time quality	Observe the grandmaster accuracy (Monitoring/IED status/Time synchronization/IEEE 1588). The accuracy decreases slowly if the GPS antenna is removed. The IED GNRLLTMS1 WARNING signal is activated if the accuracy is not within the specified limits.
Missing clock	Disable the clock master and check that one IED takes the clock master role.
PTP priority 1	Compare priorities against the grandmaster's priority. The clock master should have smaller value (bigger priority).
PTP priority 2	Same as above, but PTP priority 2 handles the selection when PTP priority 1 is the same. Can be used to set priorities to the IEDs in situation when the clock master fails.
SMV Synch accuracy	The global clock is seen when the clock master is present.
Local synch accuracy	According to 9-2 LE the synchronization accuracy needs to be better than 4 μs which is the defined supervision limit.1
Max Dev synch Accuracy	According to 9-2 LE the synchronization accuracy needs to be better than 4 μs which is the defined supervision limit.2
Grandmaster	Check the grandmaster monitoring from the master configuration via the HMI path Monitoring/IED status/Time synchronization/IEEE 1588. Check that all IEDs are synchronized to same PTP master.

Table 4. Network

Item	Description	Checked
Max HSR loop size	Maximum supported HSR loop size is 30. Consider applying different topology in case a larger system is needed.
Interlink port	IEEE 1588 v2 slave devices are not allowed in the interlink port.
Redundancy	Check the maximum delays in different network setups.