Standard for High Voltage EG Connections
Bog'liq
STNW1175-Standard-for-HV-EG-Connections
Standard for High Voltage EG Connections
STNW1175
Owner: EGM Engineering
Release: 4, 11 Feb 2022
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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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