NERC Compliance Process Directive #2011-CAG-001 Directive Regarding Generator Transmission LeadsAttachment 1Typical Generator Transmission Leads One-Line Diagrams

2 RELIABILITY | ACCOUNTABILITY

Glossary of Icons

Breaker

Disconnect

Generator

GSU Transformer

Bus

Generation Lead

Integrated System

Line

3 RELIABILITY | ACCOUNTABILITY

Single Generator Transmission Lead1a

Point of Interconnection

Integrated System Line

To Sub 1 To Sub 2

GO/GOP Entity Registered as a TO/TOP Area of

Responsibility

1. > 3 Towers +Adjacent spans

Interconnection TO/TOP

Responsibility

TransformerLow Side

TransformerHigh Side

2. GO/GOPBlackstart

Conditions of GO/GOP Entity with Single Generator Transmission Leads to be registered as a TO/TOP1. Long lead lines or2. Blackstart or3. Considered ‘major transmission’ by RE

NOTE:This is a generic representation.The internal components may increase or decrease.The TO/TOP Area of Responsibility may expand or contract based on specific facts and circumstances, and ownership. Registered GO/GOP

4 RELIABILITY | ACCOUNTABILITY

Multiple Generator Transmission Leads2a

Point ofInterconnection

Integrated System Line

To Sub 1 To Sub 2

Registered GO/GOP 1

Interconnection TO/TOP

Responsibility

NOTE:This is a generic representation.The internal components may increase or decrease.The TO/TOP Area of Responsibility may expand or contract based on specific facts and circumstances, and ownership.

GO/GOP Entity Registered as a

TO/TOP Area of Responsibility

(Typical)

Conditions of GO/GOP Entity with Single Generator Transmission Leads (feeding a bus) to be registered as a TO/TOP1. Long lead lines or2. Blackstart or3. Considered ‘major

transmission’ by REGO/GOP 2 would be registered

as a TO/TOP responsible for the bus to Point of Interconnection tie line.

Registered GO/GOP 2

Registered GO/GOP 3

1. > 3 Towers +Adjacent spans

2. GO/GOPBlackstart

2. GO/GOPBlackstart