Engineering, 25.02.2020 00:04 mbede002

A three-phase load is supplied from a 2.4-kV:460-V, 150-kVA transformer whose equivalent series impedance is 0.038 j0.135 per unit on its own base. The load voltage is observed to be 438 V line-line, and it is drawing 95 kW at unity power factor. Calculate the voltage at the high voltage side of the transformer. Perform the calculations on a 460-V, 100-kVA base.

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:20

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options

Answers: 2

Answer

Engineering, 04.07.2019 18:20

Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.

Answers: 1

Answer

Engineering, 04.07.2019 19:10

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Analyze the factors that influence the choice between the following pairs of processes to make the products indicated: i) sand casting versus die casting of an electric-motor housing ii) thread rolling versus machining of a bolt for high-strength application. (co3/c5)

Answers: 3

Answer

You know the right answer?

A three-phase load is supplied from a 2.4-kV:460-V, 150-kVA transformer whose equivalent series impe...

Questions