A transformer with turns ratio 8:1, has the resistances of the primary and secondary windings as...
A single-phase 50-kVA, 2400/240-volt, 60-Hz distribution transformer has a 1-ohm equivalent leakage reactance and a 5000-ohm magnetizing reactance referred to the high-voltage side. If rated voltage is applied to the high-voltage winding, calculate the open-circuit secondary voltage. Neglect 'R and G^V losses. Assume equal series leakage reactances for the primary and the referred secondary
A single phase transformer has 2000 turns on the primary winding and 500 turns on the secondary. Winding resistances are ?1 = 2Ω, ?1 = 8Ω, ?2 = 0.125Ω, ?2 = 0.5Ω, ?? = 1122?? 800Ω and ???? = 1000Ω. a. Draw the complete circuit for the transformer with the parameters and transformation ratio indicated. b. Refer the secondary parameters to the primary side and draw the equivalent circuit (Draw the circuit with the core in parallel with the voltage...
QUESTION ; If the turns ratio of the primary and tertiary windings of the forward transformer are in the ratio of 1:2, what is the maximum duty ratio at which the converter can be operated? Corresponding to this duty ratio, what should be the minimum ratio of secondary to primary turns if the input dc supply is 400 volts and the required output voltage is 15 volts? Neglect switch and diode conduction voltage drops.
A transformer consists of 290 primary windings and 824 secondary windings. Part A: If the potential difference across the primary coil is 21.5 V , what is the voltage across the secondary coil? Part B: If the potential difference across the primary coil is 21.5 V , what is the current in the secondary coil if it is connected across a 115 Ω resistor?
. An ideal transformer has 600 turns on its primary side and 100 turns on its secondary side. The primary voltage is 1000 V AC. a. Is this transformer considered to be Step-Up or Step-Down? b. What will the secondary voltage be with this configuration? c. What is the secondary current if the primary current is 100 A? d. The primary windings are reconnected to a 1000 V battery (DC) for a long time. What is the secondary voltage?
A transformer consists of 300 primary windings and 830 secondary windings. A.) If the potential difference across the primary coil is 28.5 V , what is the voltage across the secondary coil? V2= ______________ V B.) If the potential difference across the primary coil is 28.5 V , what is the current in the secondary coil if it is connected across a 140 Ω resistor? I = _____________ A
A transformer has 1020 turns in the primary and 12 turns in the secondary. (a) Is this a step-up or step-down transformer? (b) If the primary is connected across 120 V rms, what is the open-circuit voltage across the secondary? ( ) V (c) If the primary current is 0.3 A, what is the secondary current, assuming negligible magnetization current and no power loss? ( ) A
Question 11 (1 point) A transformer has a primary coil with 200 turns, and a secondary coil with 2000 turns. The input voltage is 120 V, and it runs at 1800 W. Choose the correct answer. D V. N 1, N. P= IV N N, W = Vs-12V. Ip-15A Vs-12000V. Ip-150A Vs-1200V. Ip=15A Vs-1200V. Ip-150A
A transformer consists of 290 primary windings and 842 secondary windings. PART A: If the potential difference across the primary coil is 29.0 V , what is the voltage across the secondary coil? Express your answer in volts to three significant figures. PART B: If the potential difference across the primary coil is 29.0 V , what is the current in the secondary coil if it is connected across a 150 Ω resistor? Express your answer in amperes to three...
A single-phase transformer is rated at 10 kVA, 240/100 V. When the secondary terminals are open-circuited and the primary winding is supplied at normal voltage, the input current is 2.6 A at a power factor of 0.3 lag. When the secondary terminals are short-circuited, a voltage of 18 V applied to the primary causes the full-load current to flow in the secondary, the power input to the primary being 240 W. Calculate (a) the regulation (b) the efficiency of the...