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
 
52 of 60 
Section 
Description of deviations 
Type of deviation 
Justification 
5.2.2 
Facility fault protection, 
Generator phase balance 
removed from Central 
Protection. 
Promote improved 
benefit to Australia’s 
electricity system 
Compliance to best practice 
standards improves safety and 
performance. 
5.2.2 and 
5.2.4 
Overcurrent and earth fault for 
Class A1 IES systems not 
required. 
Promote improved 
benefit to Australia’s 
electricity system 
Acknowledging the low fault 
current rating of IES systems 
and aligning with the LV EG 
connection standard 
requirements for similar EG 
capacities. 
5.2.4 
Title shortened to “Overcurrent 
and earth fault protection” 
n/a 
Shortened to improve 
readability and formatting.
5.2.5 
Grid Low Forward Power 
terminology replaced by Power 
Limit 
n/a 
Existing terminology used in 
Queensland EG Standards 
5.2.11 
GID requirement for Class A1 
EG Systems exempted 
Promote improved 
benefit to Australia’s 
electricity system 
5.2.11 
GID ownership changed to 
DNSP except in circumstances 
stated in section 4.5.2 
n/a 
5.5 
No information or link provided 
for time and costs to complete 
the Technical study 
n/a 

Extra requirements for EG 
Systems connecting under 
Chapter 5 of NER 
Promote improved 
benefit to Australia’s 
electricity system 
The DNSPs had one standard 
for all HV EG Systems and this 
practice is carried out with 
clear separation of 
requirements for different 
categories 

Removed the requirement for 
DNSP to require an operation 
and maintenance plan for sign-
off before energisation. 
Operational and maintenance 
report are only required to be 
produced on request to the 
DNSP. 
Promote improved 
benefit to Australia’s 
electricity system 
This is not currently a 
requirement. 

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