Standard for High Voltage eg connections


Standard for High Voltage EG Connections



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STNW1175-Standard-for-HV-EG-Connections

Standard for High Voltage EG Connections 
 
STNW1175 
Owner: EGM Engineering
Release: 4, 11 Feb 2022 

Document ID: 2946177 
SME: Manager Generation & Customer Standards 
Uncontrolled When Printed
 
5 of 60 
5.2.8
 
Inter-trip ....................................................................................................... 35
 
5.2.9
 
DC systems or UPS integration protection ................................................... 35
 
5.2.10
 
Fail-safe tripping .......................................................................................... 35
 
5.2.11
 
Grid Isolation Device ................................................................................... 35
 
5.2.12
 
Grid Protection Relay .................................................................................. 36
 
5.2.13
 
Wireless transfer ......................................................................................... 36
 
5.3
 
Power quality response ............................................................................................. 37
 
5.3.1
 
IES power quality response modes ............................................................. 37
 
5.3.2
 
Rotating Machines power quality response ................................................. 37
 
5.4
 
Metering .................................................................................................................... 37
 
5.5
 
Technical Studies – Class A1 and Class A2 .............................................................. 38
 
6
 
Technical requirements for Class B EG Systems ................................................................ 38
 
6.1
 
General ..................................................................................................................... 38
 
6.2
 
Technical requirements overview .............................................................................. 39
 
6.3
 
Reasonable approaches for voltage and reactive power control ............................... 39
 
6.3.1
 
Voltage control strategy ............................................................................... 39
 
6.3.2
 
Control system ............................................................................................ 40
 
6.3.3
 
Control system damping .............................................................................. 40
 
6.3.4
 
Control system testing ................................................................................. 40
 
6.3.5
 
Power system stabiliser ............................................................................... 40
 
6.4
 
Protection requirements for Class B .......................................................................... 40
 
6.4.1
 
General protection requirements ................................................................. 40
 
6.5
 
DNSP Technical Study – Class B.............................................................................. 42
 
6.5.1
 
Plant energisation ........................................................................................ 43
 
6.6
 
EMT modelling requirements – Class B .................................................................... 43
 
6.7
 
Communication requirements – Class B ................................................................... 44
 
6.8
 
SCADA requirements – Class B ................................................................................ 44
 
6.8.1
 
General requirements .................................................................................. 44
 
6.8.2
 
Plant status ................................................................................................. 45
 
6.8.3
 
Voltage control ............................................................................................ 46
 
6.8.4
 
Distribution System support mode ............................................................... 46
 
6.8.5
 
Curtailment .................................................................................................. 46
 
6.8.6
 
Remote start ................................................................................................ 46
 
6.9
 
Meteorological data ................................................................................................... 46
 
6.10
 
Inter-trip .................................................................................................................... 46
 
7
 
Testing and commissioning ................................................................................................ 47
 
8
 
Operations and maintenance .............................................................................................. 49
 
Appendix A: Deviations from the National DER Connection Guidelines (informative) ................ 51
 



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