Determine the input power and power factor

Assignment Help Electrical Engineering

Reference no: EM131266052

A 20 kVA, 2000/200 V, 50 Hz transformer is operated at no-load on rated voltage, the input being 150 W at 0.12 power factor. When it is operating at rated load, the voltage drops in the total leakage reactance and the total resistance are, respectively, 2 and 1 per cent of the rated voltage. Determine the input power and power factor when the transformer delivers 10 kW at 200 V at 0.8 pf lagging to a load on the LV side.

Reference no: EM131266052

Questions Cloud

Who is close to this particular retailer : What considerations might the retailer had to have considered when thinking about their location. Parking considerations? Who is close to this particular retailer? How will that affect the business? What is their trade area? Tapestry Segment (focus s..

What is beta what type of risk does it represent : What is the difference between systematic and unsystematic risk? What is beta? What type of risk does it represent? What effect will diversifying your portfolio have on your returns and risk? What is the security market line? What does it represent

How do beliefs and attitudes influence consumer behavior : How do beliefs and attitudes influence consumer behavior? How can negative attitudes toward a product be changed?

Compute the voltage at the sending-end of the feeder : A single-phase load is fed through a 66-kV feeder whose impedance is 120 + j 400 Ω and a 66/6.6 kV transformer whose equivalent impedance (referred to LV) is 0.4 + j 1.5 Ω. The load is 250 kW at 0.8 leading power factor and 6 kV.

Determine the input power and power factor : When it is operating at rated load, the voltage drops in the total leakage reactance and the total resistance are, respectively, 2 and 1 per cent of the rated voltage. Determine the input power and power factor when the transformer delivers 10 kW ..

What would be the present value of her deferred annuity : Mary's replacement is unexpectedly hired away by another school, and Mary is asked to stay in her position for another three years. The board assumes the bonus should stay the same, but Mary knows the present value of her bonus will change. What w..

Calculate the primary and secondary impedances in ohms : Calculate the primary and secondary impedances in ohms and also the magnetizing reactance in ohms on the LV side.

Compute all the parameters of the equivalent circuit : Compute all the parameters of the equivalent circuit referred to the HV and LV sides of the transformer. Also calculate % voltage regulation and efficiency at full load and 0.8 pf lagging.

Find the equivalent winding resistance : Find the equivalent winding resistance, reactance and impedance referred to the HV and LV sides. Convert these to pu values.

User Account

All Pages