Breaker failure relay - Study guides, Class notes & Summaries

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 and analyzed to determine proper mitigation ...

NERC Problem Solving Exam Questions and With Distinction level Marking scheme updated 2023/2024 Power is flowing from source BA 1 to sink BA 2 and loading the tie-lines. Which action would reduce the power flow on the tie-lines? a) Reliability Coordinator declare an EEA b) Increasing generation in the sink BA c) Increasing generation in the source BA d) Buy more power from source BA - correct answer b) Increasing generation in the sink BA An Emergency outage request would result in ...

What is an air break switch? - A group operated switch used to deenergize short lines or small transformers What is the role of a transmission owner? - Own and maintain the transmission system What is the role of the transmission operator? - Direct all daily operation on the transmission facilities including maintenance, reliable operations, and transactions across area. Must adhere to the Regional Reliability plan and directives from the RC. What is a CCPD? - Capacitively Coupled Poten...

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 and analyzed to determine proper mitigation plans...

Stationary Engineer Electric Exam Questions With Correct Answers Latest 2024/2025 (Graded A+) A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is 30 amps. Under these conditions, the line voltage will be ____________ volts. - Answer 200 A 20-ohm resistor is connected in series with a parallel combination of two resistors, one of which is 10-ohms, the other 40-ohms. If the voltage across the parallel combination is 40 volts, ...

Stationary Engineer Electric Exam Questions With 100% Correct Answers An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - answercurrent lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - answerTrue ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is ...

Stationary Engineer Exam Questions and Answers Latest 2024/2025 (Graded) An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - Answer current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - Answer True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination...

Stationary Engineer Electric Exam Questions With 100% Correct Answers An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - answercurrent lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - answerTrue ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is ...

EES (Enphase Energy System) 3.0 installer certification training featuring the IQ Battery 5P practice test with actual possible questions and answers True or false: In a solar array with Enphase microinverters, all of the solar panels should have the same orientation for maximum energy production. -Ans: False The energy production of each micro/panel is independent from the others Which of the following are features of Enphase Enlighten monitoring? -Ans: E. All of the a...

Stationary Engineer Electric Exam Questions With 100% Correct Answers An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - answercurrent lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - answerTrue ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is ...