Substation transformer - Study guides, Revision notes & Summaries

Distribution substation - A location where transmission voltage is reduced to a distribution voltage Transmission substation - A location near a generator where generation voltage is stepped up to a transmission voltage Substation - A high voltage electrical system facility used to switch generators equipment circuits in and out change voltage from one level to another Power transformer - Used to reduce transmission voltages to distribution voltages

NERC Test 1questions With Complete Solutions 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 line that the failed circuit breaker was feeding off of. Who is charged with the responsibility to develop procedures to ensure misoperations are reviewed a...

NERC SOS Pre-Assessment Questions and answers, rated A+/ VERIFIED/ What are three primary AGC control models? - Tie-Line Bias, Constant Frequency, Constant Net Interchange When a balancing Authority's ACE is zero, what is true? - The BA load-interchange-generation balancing while supporting Interconnection Frequency In a 3-phase AC generator... - Each phase is physically offset by 120 degrees Inductance is a property of an electric circuit that opposes the change in ___ - current Wha...

Clint's Lineman Test latest complete update The most common frequency generated in the United States is 60 cycles. - answers A generation station is a plant which changes fossil fuel, waterfall, or the atom into electrical energy. - answers The generation transforms mechanical energy to electrical energy. - answers The power take-off of a digger derrick is not placed near the operator's platform. Name one other component control that is in an isolated location from ...

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 Schedule by 20 MWs. B) Inform the Reliability Coordinator that you cannot participate in the time error correction. C) Decrease Net Interchange Schedule by 20 MWs. D) Increase Net Interchange Sche...

NERC book quiz questions | updated 2024 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 Net actual interchange minus Net scheduled interchange is what? - Inadvertent interchange Suppose your interconnection operators at 59.97 Hz from one minu...

NETA Level 2 Study Material Guide for 2024 Tested and Already Passed!!! The state of charge of a lead acid battery is measured by which of the following: - CORRECT ANSWER-Hydrometer Temporary safety grounds: - CORRECT ANSWER-Are sized with consideration of available short circuit current and time duration Before personnel are allowed to operate a power circuit breaker they must first understand the ________ of the breaker. - CORRECT ANSWER-All the above Type MV is a single dielectric ...

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 Net actual interchange minus Net scheduled interchange is what? - Inadvertent interchange Suppose your interconnection operators at 59.97 Hz from one minute after midnight to noon and operate at ...

What are three primary AGC control models? - Answer :Tie-Line Bias, Constant Frequency, Constant Net Interchange Quiz :When a balancing Authority's ACE is zero, what is true? - Answer :The BA load-interchange-generation balancing while supporting Interconnection Frequency Quiz :In a 3-phase AC generator... - Answer :Each phase is physically offset by 120 degrees Quiz :Inductance is a property of an electric circuit that opposes the change in ___ - Answer :current Quiz :What three value...

PJM Test Questions - Answered (Complete Solutions) Which of the following statements are true concerning delays in restoring power to offline generation? a. the unit could suffer turbine shaft damage b. fuel oil for the unit could congeal c. startup time for the unit will be reduced d. the battery life used to maintain critical systems may run out During system restoration, you re-energize a fairly long distribution load circuit that has been off for several hours and notice that the loading i...