Transformer of distribution, Electrical Engineering

Assignment Help:

Transformer of distribution:

Let be the transformer of distribution of the Face(Figure) 3 connected to the primary between phase a and c of a three-phase network of 23 kV. Both rolling-ups of low voltage are 120 V with the indicated polarities.

Loadsconnected to the secondary are:

L1: Heating, 1.5 kW with a power factor of 1

L2:Drill, 0.5 kW with a power factor of 0.81 lagging.

L3:Pump, 2.53 kW with a power factor of 0.92 lagging

The model of the transformer is of ideal type.

1-Calculate the current phasor of the loadL1.

2-Calculate the current phasor of the loadL2.

3-Calculate the current phasor of the loadL3.

4-Calculate the currentphasor in the primaryof the transformer (entering the positive polarity).

5-Calculate the total apparent power seen in the primary of the transformer.

1383_Transformer of distribution.png

Figure: The transformer of distribution

Related Discussions:- Transformer of distribution

Reversibility principle, The reversibility principle of electrical machines...

The reversibility principle of electrical machines states that an electrical machine can be used to operate either as a motor, converting electrical to mechanical energy, or as a g

Voltage and frequency control methods - motor control , Voltage and Freq...

Voltage and Frequency Control Methods In this control method the ratio of voltage to frequency is kept constant so that the flux remains constant. The voltage at varia

8 bit data to register - move immediate instruction , 8 bit data to Regi...

8 bit data to Register This form of the instruction is used to copy 8 bit data directly to the register location specified in the instruction. The instruction format i

What do you mean by byte, Q. What do you mean by Byte? Without question...

Q. What do you mean by Byte? Without question, the most vital data structure used by the 80x86 microprocessor is the byte this is true since the ASCII code is a 7-bit non-weigh

Lda load accumulator direct instruction, LDA Load Accumulator Direct Inst...

LDA Load Accumulator Direct Instruction This instruction is used to copy data from memory whose address is directly specified in the instruction to th e accumulator. The i

Illustrate working of direct-coupled amplifiers, Q. Illustrate working of D...

Q. Illustrate working of Direct-coupled Amplifiers? Direct-coupled Amplifiers : The following figure shows a direct-coupled amplifier consisting of two stages. A dc voltage i

Terminal, Terminal The oval symbol show below in indicate terminal ...

Terminal The oval symbol show below in indicate terminal of the program. Usually words like START BEGIN STOP END are written in terminal symbol. START

Mention the desirable properties of fuse materials, Mention the desirable p...

Mention the desirable properties of fuse materials. A fuse material must possess the properties as follows: Low resistivity - It means, thin wires can be used that will of

Find the induced emf across the coil, Q. A coil is formed by connecting 15 ...

Q. A coil is formed by connecting 15 conducting loops, or turns, in series. Each loop has length l = 2.5 m and width w = 10 cm. The 15-turn coil is rotated at a constant speed of 3

Derating factor, Conductors with a temperature rating of 75 degrees C are r...

Conductors with a temperature rating of 75 degrees C are run in an area with an ambient temperature of 55 degrees C. What would be the de-rating factor that should be applied?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages