Voltage drop limits - Study guides, Class notes & Summaries

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 increase. A load has a power factor of 0.9 lagging. If the load draws 100 MVA, what is the MW draw? - 90 pf= mw/mva The high side of a delta-wye connection transformer is connected to a pow...

_______ can be generated. I. Electricity II. Electrical Energy a. I only b. II only c. both I and II d. neither I nor II - Answer Ans. b A phenomenon where a circuit stores electrical energy is called ______. a. Inductance b. Capacitance c. Resistance d. Susceptance - Answer Ans. b A general term including material, fittings, devices, appliances, fixtures, apparatus, and the like used as part of, or in connection with, an electrical installation is ______. a. premises wiring (s...

SOS NERC RELIABILITY EXAM QUESTIONS & ANSWERS LATEST GRADED A+. 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 Inte...

Practice Test NERC Questions and answers | updated 2024 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 increase. A load has a power factor of 0.9 lagging. If the load draws 100 MVA, what is the MW draw? - 90 pf= mw/mva The high side of a delt...

_______ can be generated. I. Electricity II. Electrical Energy a. I only b. II only c. both I and II d. neither I nor II Ans. b A phenomenon where a circuit stores electrical energy is called ______. a. Inductance b. Capacitance c. Resistance d. Susceptance Ans. b Brainpower Read More A general term including material, fittings, devices, appliances, fixtures, apparatus, and the like used as part of, or in connection with, an electrical installation is ______. a. pre...

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...

Two phase conductors of a 138kV transmission line come in contact due to a storm, creating a phase to phase fault. The distance relay at each end of the line tripped and isolated the line. What two measured parameters of the line caused the distance relay to operate? Temperature and length MWs and MVARs Voltage and current Resistance and Impedance - Voltage and current What is the main cause for having low voltage on the Transmission and Distribution system? Over generation in t...

If a generator is producing 500 MW and 200 Mvar, is the generator? A. Leading B. Lagging C. Underexcited D. Dropping B. Lagging (Solve for phase angle, + is lagging, - is leading What is the IEEE device number for a differential relay? A. 87 B. 86 C. 67 D. 50 A. 87 (See IEEE chart pg. 125) Can a synchronous machine have a negative torque angle? What does this mean? A. Yes / the machine is absorbing reactive power B. No / the machine is absorbing active power C. No / the machine i...

PSI Journeyman Online Practice Test Questions And Answers A fitting is a part of a wiring system that is intended primarily to perform which type of function? - answermechanical When the disconnecting means of a transformer is located remotely it must be? - answerlockable If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall not exceed how many feet? - answer6 feet What is an askarel? - answera group of nonflammable synthetic chlorinated hy...

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