SikhooSab

accircuit

Calculate the phase and line currents in a balanced delta connected load taking 75 kW at a power factor of 0.8 from a three phase 440 V supply.

bySIKHOO SAB -April 28, 2022

Given data:   DELTA connection,     Total power consumed, P = × 𝟏𝟎𝟑 𝐖 ,   …

accircuit

Three similar coils are star connected to a three phase, 400 V, 50 Hz supply. If the inductance and resistance of each coil are 38.2 mH and 16 Ω respectively. Determine - a) Line current b) Power factor c) Power consumed

bySIKHOO SAB -April 28, 2022

Given data: STAR connection, Resistance, R = 16 Ω, Inductance, L = 𝟑𝟖 . 𝟐 …

accircuit

A circuit takes a current of 3 A at a power factor of 0.6 lagging when connected to a 150 V, 50 Hz supply. Another circuit takes a current of 5 A at a power factor of 0.8 leading when connected to the same supply. If these two circuits are connected in series across 230 V, 50 Hz supply. Calculate the current and power consumed

bySIKHOO SAB -April 28, 2022

Given data:   For Circuit-1 Current, I= 3 A,   Power factor, Cos Φ = 0.6 laggi…

accircuit

A series circuit consists of a non-inductive resistor of 10 Ω, an inductor having a reactance of 50 Ω and a capacitor having a reactance of 30 Ω. It is connected to a 230 V AC supply. Calculate - a) Current b) Power Consumed c) Power factor

bySIKHOO SAB -April 28, 2022

Given data:   Resistance, R = 10 Ω,   Inductive reactance, X L = 50 Ώ,   Ca…

accircuit

A circuit is made up of 5 Ω resistance, 0.2 H inductance and 60 μF capacitance in series. If the circuit current is 20 A at a supply frequency of 50 Hz. Find the applied voltage?

bySIKHOO SAB -April 28, 2022

Given data:   Resistance, R = 5 Ω,   Inductance, L = 0.2 H,   Capacitance, C…

accircuit

A coil has a resistance of 75 Ω and an inductance of 1.4 H. When the applied AC voltage is 240 V at what frequency will the current be 0.3 A? What is the power factor at this frequency?

bySIKHOO SAB -April 28, 2022

Given data: Resistance, R = 75 Ω,   Inductance, L = 1.4 H,   Supply voltag…

accircuit

An inductive coil connected to a 200 V, 50 Hz supply takes a current of 10 A. If the power dissipated in the coil is 1000 W. Calculate - a) Inductance of coil b) Power factor c) Angle of lag

bySIKHOO SAB -April 28, 2022

Given data:   Supply voltage = 200 V,   Frequency, f = 50 Hz   Current = 10 …

accircuit

. A 200 V, 50 Hz, inductive circuit takes a current of 10 A lagging the voltage by 30°. Calculate - a) Resistance b) Reactance c) Inductance of the circuit

bySIKHOO SAB -April 28, 2022

Given data: Supply voltage = 200 V,   Frequency, f = 50 Hz, Current = 10 A…

accircuit

A resistance of 5 Ω is connected in series with a pure inductance of 0.01 H to a 100 V, 50 Hz supply. Calculate - a) Impedance b) Current c) Power absorbed

bySIKHOO SAB -April 28, 2022

Given data:  Resistance, R = 5 Ω,  Inductance, L = 0.01 H,  Supply voltage = 100 V …