Engineering Board Exam Reviewer · Three-Phase Systems in Power Applications · medium
A three-phase generator is rated 1500 kVA at 4160 V (line-to-line). What is its rated line current?
- 208 A
- 361 A
- 120 A
- 625 A
Answer
A. 208 A
Solution
S= 3,VLIL IL=S/ 3,VL= 1,500,000 3(4160)=208 A.
More Three-Phase Systems in Power Applications questions
- Three 10, resistors are connected in delta across a 240 V three-phase line. What is the line current?
- A balanced three-phase load of 100 kW operates at 0.8 power factor lagging. How many kvar of capacitors are needed to raise the power…
- In the two-wattmeter method on a balanced three-phase load, the wattmeters read 5 kW and 3 kW. What is the load power factor?
- The 30 kW, 0.8 power factor lagging three-phase load above is supplied from a 480 V line. Find its total reactive power.
- A balanced three-phase load takes 30 kW at 0.8 power factor lagging from a 480 V line. Find the line current.
- A balanced delta-connected load, with Z=6+j8, in each phase, is supplied from a three-phase line of 400 V (line-to-line, rms). Find the…
- A balanced delta-connected load, with Z=24+j18, in each phase, is supplied from a three-phase line of 208 V (line-to-line, rms). Find the…
- A balanced delta-connected load, with Z=12+j9, in each phase, is supplied from a three-phase line of 208 V (line-to-line, rms). Find the…
- A balanced wye-connected load, with Z=15+j20, in each phase, is supplied from a three-phase line of 480 V (line-to-line, rms). Find the…
- A balanced wye-connected load, with Z=16+j12, in each phase, is supplied from a three-phase line of 400 V (line-to-line, rms). Find the…