NERC EXAMS AND STUDY GUIDES COMPILATION PACKAGE DEAL.

You are an external BA with a frequency bais of 20 MW/.1 Hz that sees a frequency of 60.02 due to a large loss of load in the contingent BA. If your generator governor control systems responded to the frequency deviation approximately how much of a generation change would you BA experience? -4MW ...

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 b) An inaccurate load forecast ...

Which type of relay operates on the premise of comparing the flow in and out of the area of protection? Differential relay Underfrequency load shedding is set-up so that which of the following does NOT occur? Uncontrolled separation Who is responsible to make sure that the operation of v...

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

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 a...

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? The phase angle will increase. When load is increased phase angle will in...

Generating units jointly owned by two or more Balancing Authorities may be modeled in the AGC systems as a "virtual" tie line flow (pseudo-tie). To properly account for the jointly owned unit as a pseudo-tie, each Balancing Authority must include a portion o fthe unit's MW output as an adjustment...

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% B. 10% Dry steam plants, flash steam plants, and binary cycle power pla...

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 bi as and interchange schedule will improve frequency If ACE is Zero, why not adjust generation to help frequ...

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? Regulation of other services related to control performance 1. It is the obligation of each Bal...

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 10 degrees Choose the answer that best describes the operation of a rotor. A) The stationary part of the transmission system. B) A type of su...

NERC Reliability Coordinator Exam Vocabulary (STUDY GUIDE)