TONBRIDGE POWER GREEN LINE parsons 110899 TONBRIDGE POWER GREEN LINE PLAN OF SERVICE PE&C1099.ppt
TONBRIDGE POWER GREEN LINE WECC VOLTAGE CRITERIA SYSTEM INTACT CONDITIONS: MAXIMUM 1.05 PER UNIT MINIMUM 0.95 PER UNIT N-1 CONTINGENCY CONDITIONS: MAXIMUM 1.10 PER UNIT MINIMUM 0.90 PER UNIT POST CONTINGENCY CONDITIONS: ALL VOLTAGE CHANGES < 0.02 PER UNIT OF PRE-CONTINGENCY LEVEL FOR: 230 KV BUSES BELOW 0.90 PER UNIT 500 KV BUSES BELOW 1.00 PER UNIT 10-30-2009
TONBRIDGE POWER GREEN LINE WECC TRANSMISSION INTERCONNECTION CRITERIA N-1 CONTINGENCY CONDITIONS: POWER SYSTEM SHALL BE OPERATED AT ALL TIMES SO THAT GENERAL SYSTEM INSTABILITY, UNCONTROLLED SEPARATION, CASCADING OUTAGES AND/OR VOLTAGE COLLAPSE WILL NOT OCCUR AS THE RESULT OF THE LOSS OF A SINGLE SYSTEM ELEMENT 10-30-2009
TONBRIDGE POWER GREEN LINE 10-30-2009
TONBRIDGE POWER GREEN LINE 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3 – TONBRIDGE SS to GARRISON 230KV System Performance – Voltage Impacts System Intact: – No Significant Voltage problems N-1 Contingencies: Outage of Garrison-Taft 1 & 2, 500 kV Lines with Colstrip ATR With 950 MW WTG on-line – No significant Voltage Impacts Outage of Townsend-Garrison 1 & 2, 500 kV Lines with Colstrip ATR 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3 – TONBRIDGE SS to GARRISON 230KV System Performance – Impacts on Area Transmission Facilities System Intact: – No Significant Line Loading problems N-1 Contingencies: Outage of Garrison-Taft 1 & 2, 500 kV Lines with Colstrip ATR With 950 MW WTG on-line – Overloaded Hot Springs 500/230 kV transformer 117 % Trip 300 MW WTG at Hay Lake – Hot Springs 500/230 kV transformer still overloaded 104 % Trip 650 MW WTG from Renewable Collector System (RCS) WTG – No significant increases on overloaded area facilities 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3 – TONBRIDGE SS to GARRISON 230KV System Performance – Impacts on Area Transmission Facilities System Intact: – No Significant Line Loading problems N-1 Contingencies: Outage of Townsend-Garrison 1 & 2, 500 kV Lines with Colstrip ATR With 950 MW WTG on-line – No significant increases on overloaded area facilities Trip 300 MW WTG at Hay Lake – No significant increases on overloaded area facilities Trip 650 MW WTG from Renewable Collector System (RCS) WTG – No significant increases on overloaded area facilities 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3 10-30-2009
TONBRIDGE POWER GREEN LINE 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3A – TONBRIDGE SS to GARRISON 230KV System Performance – Voltage Impacts System Intact: – No Significant Voltage problems N-1 Contingencies: Outage of Garrison-Taft 1 & 2, 500 kV Lines with Colstrip ATR With 300 MW WTG on-line and 300 MW Transfer from Alberta – No significant Voltage Impacts Outage of Townsend-Garrison 1 & 2, 500 kV Lines with Colstrip ATR With 950 MW WTG on-line and 300 MW Transfer from Alberta – No significant Voltage Impacts 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3A – TONBRIDGE SS to GARRISON 230KV System Performance – Impacts on Area Transmission Facilities System Intact: – No Significant Line Loading problems N-1 Contingencies: Outage of Garrison-Taft 1 & 2, 500 kV Lines with Colstrip ATR With 300 MW WTG on-line and 300 MW Transfer from Alberta – No significant increases on overloaded area facilities 10-30-2009
TONBRIDGE POWER GREEN LINE PLAN 3A – TONBRIDGE SS to GARRISON 230KV System Performance – Impacts on Area Transmission Facilities System Intact: – No Significant Line Loading problems N-1 Contingencies: Outage of Townsend-Garrison 1 & 2, 500 kV Lines with Colstrip ATR With 300 MW WTG on-line and 300 MW Transfer from Alberta – No significant increases on overloaded area facilities 10-30-2009
TONBRIDGE POWER GREEN LINE parsons 110899 TONBRIDGE POWER GREEN LINE PLAN 3A PE&C1099.ppt 14
Tonbridge Switching Station parsons 110899 TONBRIDGE POWER GREEN LINE Tonbridge Switching Station PE&C1099.ppt 15