Three phase power delta - Study guides, Class notes & Summaries

Stationary Engineer Electric Pre Test Questions And 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 - 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 i...

Compared to traditional US power sources, _____ delivers three times the power with only 1.5 times the conductor material. - ANSWER-three-phase power In a delta configuration, the phase voltage is _____ the line voltage - ANSWER-equal to Three-phase power ______ than single-phase power - ANSWER-is more efficient Proper overcurrent protection for a three-phase motor requires - ANSWER-a triple-pole breaker Three-phase induction motors can be damaged by ____ in a three-phase power distr...

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 is 30 amps. Under these conditions, the line voltage will be ___________...

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 correct answers current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. correct answers True ; apparent 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 ...

Under what considerations can tag out without lock out be permitted? - Answer-***&If an energy isolating device is not capable of being locked For PV systems, a(n) _____ is a device that changes direct-current input to an alternating-current output. - Answer-Inverter Identify the contact pictured above. (NC and NO separated by a node) - Answer-Form C When applying personal protective grounds, which end is attached first? - Answer-***&The equipment end An induction motor has 40kVA input po...

ABYC Advanced Pretest Questions & Answers 100% Accurate!! contributing factor? - ANSWER-Temperature rating of shore-cord insulation An inter-circuit short can cause: - ANSWER-" All of the above; Unrelated circuits to operate simultaneously; Components to work at reduced capacity; An over-current situation" Which of the following is addressed by ABYC A-32? - ANSWER-Power conditioning and conversion LED navigation lights are required to meet: - ANSWER-72 Colregs Which of the foll...

Construction Red Seal Practice Exam (2023/2024) Already Graded A C The rotational frequency of a 6 pole alternator generating an output frequency of 60 HZ would be ______ RPM. A) 3600 B) 2400 C) 1200 D) 600 B A balanced wye connected three-phase four-wire system has a phase voltage of 347 Volts. The line voltage would be: A) 208 Volts B) 600 Volts C) 347 Volts D) 120 Volts A In a wye connected four wire system, the neutral conductor maintains equal; A) voltage in each phase with unbalanced...

Three-phase power ______ than single-phase power -ANSWER - is more efficient Proper overcurrent protection for a three-phase motor requires -ANSWER - a triple-pole breaker Three-phase induction motors can be damaged by ____ in a three-phase power distribution system. -ANSWER - loss of voltage In the SO-Hertz world, the Three-Phase _(___) configuration is by far the most frequently used. -ANSWER - wye Three-Phase is a more efficient use of conductors. Given the same peak voltage betwe...

Stationary Engineer Electric Exam Questions and Answers 100% Pass 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 - Correct Answer ️️ - current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - Correct Answer ️️ -True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn ...

NERC Practice Text Questions And Answers 100% Verified. 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? - correct answer.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? - correct answer.9...