(with 100% Correct Solutions)
What percentage of load gives a 1 Hz change in an island condition?
6-10% (Think 6-10 day island vacation)
If ACE is Zero but system Hz is off, what should a system operator do?
Nothing! ACE bias and interchange schedule will improve frequency
If ACE is Zero, why not adjust generation to help frequency?
Could overload equipment, this is a NERC violation
When restoring from blackout condition, what should be done with load?
All load breakers should be opened, load should be restored in a controlled manner not to exceed 5% of
current available gen
What's the point of COM-001?
Each TO, BA, RC and NERCNet Use Orgs need to have good comms
Where do they need to have comms?
Internal, Between RC, TO and BA, Other RC, TO, BA and authorities
,Where applicable comms should be ______ and _______ routed.
Redundant and Diversely routed, just in case something fails
How do we know comms will be good?
They will manage, alarm, test and/or actively monitor, especially emergency comm facilities and
equipment (non-routine equipment)
When can languages other than English be used?
Only for internal operation, Operation of the BES requires comms in English
What is required so operation during a loss of comms will be ensured?
Written operating instructions and procedures
What is the point of COM-002?
Ensure BA, TO, GO, and RC have comms and capability to use them for addressing emergency and that
operators are trained to use them
Who should a BA or TO notify if they are aware of any condition that could threaten area reliability or
when shedding load?
Notify their RC and any other potentially affected BA or TO
How should directives be issued by an RC, TO or BA?
In a clear, concise and definitive manner, using 3 part(way) communications
,Who is required to create a blackstart restoration plan? Who approves it?
Transmission Operators; Its RC
When is the blackstart condition finished?
When the choice of the next load to be restored is not driven by frequency and voltage control
Who directs the procedure for restoring interconnection between Tos?
RC
What must be done prior to implementing changes in a restoration plan?
The parties invloved must be told of changes to their role and specific tasks prior to implementation.
How often must the plan be confirmed given no changes were made?
TO annually review the plan and report to RC
After a system modification is made, how long does the TO have to update restoration plans?
90 days
Where is a copy of the restoration plan required to be kept?
Main and backup control rooms
, What must be done on the restoration plan every five years?
Analyze the plan through actual events, steady state and dynamic simulations or testing that the plan
can work as intended.
How often must a Blackstart Resource verify it can meet real and reactive power requirements of its
cranking path and intial load?
Every 5 years
How often must the location of loads required to control voltage and Hz in a blackstart be verified within
operating limits?
Every 5 years
How often is the capability of generating resources required to control voltage and Hz in a blackstart
condition verified?
Every 5 years
What should a TO use if the restoration plan cannot be executed?
Use its restoration strategies
Under what conditions can a TO resynchronize with its neighboring TO?
Only with RC approval or with the established procedures of the RC
What is the point of Blackstart Resource testing?
To ensure the resource is capable of me4eting the requirements of the restoration plan