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NERC RC BAL-004 with complete solution to pass
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NERC RC BAL-004 with complete solution to pass
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NERC RC BAL-004What is the purpose of BAL-004? - correct answer ✔✔To ensure that time error corrections are
conducted in a manner that does not adversely affect the reliability of the interconnection.
What is Time Error? - correct answer ✔✔Accumulated Time Difference Between Time based on
interconnection frequency & the National Bureau of Standards Time
What is 'Time Error Correction'? - correct answer ✔✔An offset to the interconnections scheduled
frequency to correct for accumulated time eror.
What is the standardized (NAESB) frequency offset used in a Time Error Correction? - correct answer
✔✔+ / - 0.02 Hz
Which interconnection uses automatic time error correction? - correct answer ✔✔WECC
What is a Interconnection Time Monitor & who is the Interconnection Time Monitor? - correct answer
✔✔It is an entity that monitors time error & initiates & terminates time error corrections.
One time monitor per interconnection
A RC acts as the Interconnection Time Monitor
What time notice is required to be given prior to a time error correction? - correct answer ✔✔1 hour
When can a time error correction be started & stopped - correct answer ✔✔on the hour or half hour or
stopped as required for reliability
What are BAs to do once they reconnect after separation (in regards to time error)? - correct answer
✔✔Adjust time error devices to coincide with the time error of the interconnection time monitor
Who can request a time error correction? - correct answer ✔✔Any RC in an interconnection
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