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(b) A 100 VA, 110/10 V conventional transformer is to be used to supply power from...
Ons Nse-12) Nc(-120) Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up...
ons Nse-12) Nc(-120) Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the transformer? Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the...
A 25 KVA 380/100 V conventional (two winding) transformer is to be used as an auto...
A 25 KVA 380/100 V conventional (two winding) transformer is to be used as an auto transformer. Sauto = kVA according to the configuration is 090 IL Vu = 480 source 192 VL= 380 load 31.58 120 48 95 None of these
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms)...
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms) to a 5.00 Ohm resistor in the secondary circuit. (a) What should the ratio of turns of the primary to secondary circuit of the transformer be? (b) What is the average power delivered to the secondary? (c) Assuming the transformer to be ideal (i.e., 100% of the power in the primary is transferred to the second), what is the rms current in the primary?
Palred Quiz) 3 For ideal transformer as shown in figure P.3, determine: a. The currents I1,...
Palred Quiz) 3 For ideal transformer as shown in figure P.3, determine: a. The currents I1, I2 and I3! b. The primary and secondary voltage Vu V, Vg and Va C. The complex power supplied by the source! d. The effective power dissipated by the load impedance, Zioad 812-20 Ω 1:3 18 Ω Zload 40200 v ( 45 Figure P.3 Ideal Transformer Circuit
Solution: 7. (12 pts) A transformer is rated at 480V / 120V, 1.8kVA. Assume the transformer...
Solution:
7. (12 pts) A transformer is rated at 480V / 120V, 1.8kVA. Assume the transformer is ideal and all voltages and currents are RMS. a) What is the current rating of the primary? ww b) What is the current rating of the secondary? ZL = 8 •12 pf := 85.% lagging V l = 100. V c) V := 100.V How big is the source voltage (IVsI)? d) The secondary load (ZL) has a magnitude of 8 22 at...
Rework problem 3.4 if the load connected to the 240-V secondary winding absorbs 110 kVA under...
Rework problem 3.4 if the load connected to the 240-V secondary winding absorbs 110 kVA under short-term overload conditions at an 0.8 power factor leading and at 230 volts. Reference of problem 3.4 A single phase 100-kVA 2400/240-volt 60 Hz distribution transformer is used as a step down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 60kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary...
A single-phase transformer is rated at 10 kVA, 240/100 V. When the secondary terminals are open-circuited...
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...
A single-phase 10 kVA, 460/120 V, 60 Hz, transformer has an efficiency of 96% when it...
A single-phase 10 kVA, 460/120 V, 60 Hz, transformer has an efficiency of 96% when it delivers 9 kW at 0.9 pf lagging. The transformer is connected as an autotransformer to supply load to a 460 V circuit from a 580 V source. Show the autotransformer connection Determine kVA rating of the autotransformer Determine the efficiency of the autotransformer at full-load with 0.9 pf lagging
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of thr...
please solve the question in pu sysyem !!!!
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I is supplied with power directly from a large constant-voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8...
3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8 kVA resistive load (i.e., the load has a power factor of 1.0) at rated voltage of 120 V a) If you assume the transformer is ideal, what would be the magni- tude of the expected primary side (240 V side) current? b) Again, if you assume the transformer is ideal, what is the apparent impedance of the load viewed from the high-voltage side of...
ons Nse-12) Nc(-120) Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the transformer? Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the...
A 25 KVA 380/100 V conventional (two winding) transformer is to be used as an auto transformer. Sauto = kVA according to the configuration is 090 IL Vu = 480 source 192 VL= 380 load 31.58 120 48 95 None of these
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms) to a 5.00 Ohm resistor in the secondary circuit. (a) What should the ratio of turns of the primary to secondary circuit of the transformer be? (b) What is the average power delivered to the secondary? (c) Assuming the transformer to be ideal (i.e., 100% of the power in the primary is transferred to the second), what is the rms current in the primary?
Palred Quiz) 3 For ideal transformer as shown in figure P.3, determine: a. The currents I1, I2 and I3! b. The primary and secondary voltage Vu V, Vg and Va C. The complex power supplied by the source! d. The effective power dissipated by the load impedance, Zioad 812-20 Ω 1:3 18 Ω Zload 40200 v ( 45 Figure P.3 Ideal Transformer Circuit
Solution:
7. (12 pts) A transformer is rated at 480V / 120V, 1.8kVA. Assume the transformer is ideal and all voltages and currents are RMS. a) What is the current rating of the primary? ww b) What is the current rating of the secondary? ZL = 8 •12 pf := 85.% lagging V l = 100. V c) V := 100.V How big is the source voltage (IVsI)? d) The secondary load (ZL) has a magnitude of 8 22 at...
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...
please solve the question in pu sysyem !!!!
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I is supplied with power directly from a large constant-voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8 kVA resistive load (i.e., the load has a power factor of 1.0) at rated voltage of 120 V a) If you assume the transformer is ideal, what would be the magni- tude of the expected primary side (240 V side) current? b) Again, if you assume the transformer is ideal, what is the apparent impedance of the load viewed from the high-voltage side of...
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