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A Balancing Authority notices that Operating Reserve has steadily declined throughout the hour. What is the most likely cause? a) Loss of a large generator in the area b) An inaccurate load forecast c) Loss of a major transmission line d) A malfunction of EMS -Answer b) An inaccurate load forec...

Common standard time period for station battery to handle outage of AC power to chargers - Answer 8-12 hours Time to restore data exchange redundancy when redundancy testing by RC/TOP/BA deemed unsuccessful -Answer 2 hours Transition period to backup control facility (fully functioning) -Answer ...

1. If a 500 kV transmission line with a surge impedance loading of 800 MW is currently loaded at 1400 MW, which of the following events would most likely occur? a. Generator MVAR output would increase b. All system capacitors would trip off-line c. Generator MVAR output would decrease d. All au...

The Reliability Coordinator just informed you of a slow time error correction which will begin at the top of the next hour. Your EMS system will not let you change your scheduled frequency. Your Frequency Bias Setting is -100 MW/.1Hz. What action should you take? A) Increase Net Interchange Sched...

A transmission line is operating with a voltage phase angle different of 30 degrees between the sending Vs and the receiving bus Vr. If the receiving end load is suddenly increased, the voltage phase angle difference will be? -Answer The phase angle will increase. When load is increased phase ang...

When current in an AC circuit is doubled, power losses in the circuit will respond in which way? a) half as much b) does not change c) doubles d) four times greater -Answer d) four times greater What determines the size of insulators used on power lines? a) Current flow on the line b) Voltage...

When using a dynamic schedule and the energy profile in an hour is >250 MW and the actual hourly integration deviates from the hourly energy profile by ____ the tag must be modified. A. 100 MW B. 10% C. 50 MW D. 25% -Answer B. 10% Dry steam plants, flash steam plants, and binary cycle power...

What percentage of load gives a 1 Hz change in an island condition? -Answer 6-10% (Think 6- 10 day island vacation) If ACE is Zero but system Hz is off, what should a system operator do? -Answer Nothing! ACE bias and interchange schedule will improve frequency If ACE is Zero, why not adjust gene...

If a Balancing Authority does not comply with the Control Performance Standard, the Balancing Authority is not permitted to provide which of the following for any other Balancing Authority entities? -Answer Regulation of other services related to control performance 1. It is the obligation of eac...

A misoperation occurred when an overhead ground wire on a 230KV transmission line between two substations broke and fell across A phase of the line. One of the line circuit breakers failed to open causing the breaker failure relay to pick up and as a result tripped the entire substation bus off l...

At what torque angle of operation does power typically begin to flow from the generator to the system? A) 90 degrees B) 60 degrees C) 30 degrees D) 10 degrees -Answer 10 degrees Choose the answer that best describes the operation of a rotor. A) The stationary part of the transmission system. ...

According to Nerc Standards, an emergency interchange transaction can be exempt from tagging if it is less than_________________ -Answer 60 minutes A BA or LSE that requests an EEA 3 must complete and EEA 3 report and submit it to the RC within how many days -Answer 2 business days During restor...

CIP-002 - BES Cyber System Categorization CIP-003 - Security Management Controls CIP-004 - Personnel and Training CIP-005 - Electronic Security Perimeter CIP-006 - Physical Security of BES Cyber Systems CIP-007 - System Security Management CIP-008 - Incident Reporting and Response Planning CI...

EDE - Energy Deficient Entity Ime - meter error DCS - Disturbance Control Standard DFRs - Digital Fault Recorder LOFT - Linear on the fly testing SCADA - Supervisory Control and Data Acquisition EMS - Emergency Management System SPS - Special Protection Systems ACE - Area Control Error Fs -...