Power Transmission and Distribution - Siemens

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High Voltage Power Transmission and Distribution At first - an Overview on the 2003 Events Great Britain (August 28): • 1 Transformer out of service due to Buchholz Alarm and a wrong Protection Relay Setting. However, only a limited Area (South London) was affected Denmark-Sweden (September 23): • A large Collapse in the Synchronous Area due to Power Station Outages in Combination with a double Busbar Fault (storms and wrong “construction”) Italy (September 28): • Outage of 2 major Transmission Lines; Overload on the __ remaining Lines – Full Blackout – very similar to the US- Canada Event PTD H 1TM / Re 11-2005 46
High Voltage Power Transmission and Distribution Blackout in London – Sequence of Events Transmission System in South London 3 1 2 1 Transformer Buchholz Alarm Loss of Supply for 410,000 Customers in South London © Crown Copyright, National Grid Transco EL273384 2 Disconnection of the first 275 kV Cable Section to isolate the Transformer 3 Wrong Protection Setting ( Disconnection of the 2nd Cable Section Source: NGC Investigation Report 10-10-2003 PTD H 1TM / Re 11-2005 47
Page 1 and 2: Bottlenecks in Transmission Systems
Page 3 and 4: Power Transmission and Distribution
Page 29 and 30: High Voltage Power Transmission and
Page 39 and 40: The UCTE Structures - in Details Po
Page 45: Power Transmission and Distribution
Page 59 and 60: High Voltage Summary: Blackout in I

Power Transmission and Distribution - Siemens

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