uA 200 KVA, 350V/ 11 KV, 1-phase transformer has a full-load copper loss of 600 W and an iron loss of 350W. The primary winding contains 120 turns. Calculate the following: ui) Total full-load losses uii) Full load output power at 0.75 power factor uiii) ¼ th of full- load copper loss uiv) Efficiency at  full-load when PF is 0.75 uv) Efficiency at ¼ th full load when PF is 0.75

Q: Seconday winding of transformer is made-up of material. O insulated CRGO conductor O insulated…

A: Given Secondary winding of transformer is made by using which type of conductor

Q: A 800/170V, 50 HZ, 1-phase transformer with cross sectional area of the core is 24 cm? and maximum…

A:

Q: A 3-phase 100OKVA, 11000/416 transformer is delta-connected on the primary and star connected on the…

A: Given that  3-phsee , 11000V/416V , delta connected Xmer   S3ϕ=1000 KVAr1=1.45 ohmr2=0.0006…

Q: Ql-phase step down transformer 1250 KVA, 110002200 V, 50 Hz. The resistance iphase and leakage…

A:

Q: A 3-phase 100OKVA, 11000/416 transformer is delta- connected on the primary and star connected on…

A: Transformation ratio K=0.416kV3*11kV=0.0218Per phaes…

Q: The efficiency of transformer is maximum at 10O0% loading? * True False

A: The given statement is a false statement.

Q: A 2400/240 V, 200 kVA, single phase transformer has a core loss of 1.8 kW at rated voltage. Its…

A: A 2400/240 V, 200 kVA Single phase transformer- Core loss Pe=1.8 kW, Equivalent resistance Reqv=1.1%…

Q: A single phase transformer with the maximum value of flux 0.0991wb and an effective cross sectional…

A:

Q: A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase.…

A: Scott connection is used to convert a balanced three-phase into balance 2 phases or vice versa. it…

Q: A single phase 500/200 V ,55HZ transformer has an efficiency of 98% at full-load. Determine the…

A: Given input frequency = 55 Hz and no load terminal voltage = 200 volts full load terminal voltage =…

Q: A 400/230V, 50Hz, single phase  transformer has 200 turns on high  voltage side. Find turns ratio,…

A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…

Q: The idle operating current of the three-phase transformer connected to Yy0 (Y-Y) with a power of…

A: Given transformer with rating 6300 KVA and 15/0.4 KV The no load current I0=2.91No load active power…

Q: The magnetization current of transformer depends on: Select one:

A: The magnetization currrent of transformer depends on

Q: In the system shown in Figure 1, the transformers are connected star-star with both star points…

A: It is given that: MVAbase=15XT1=XT2=XT3=0.04 pu

Q: A 3-phase 100OKVA, 11000/416 transformer is delta-connected on the primary and star connected on the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: At the end of a one-phase supply line with a series impedance of 1+j2 ohms, a 50 kVA, 2400/240 volt,…

A:

Q: A 3000V/4400V, single-phase transformer takes a no-load current of 0.5A and the iron loss is 200W.…

A: We will solve this question by using the no-loaad conditions of the transformer.

Q: Figure Q1 shows a transformer core that has the primary winding (Np) of 500 second winding (N,) of…

A: Introduction: A transformer is a device that steps up or steps down the level of voltage without…

Q: With base MVA of 150 and base voltage of 33. If the reactance of the transformer is 0.23 pu. The…

A: Base MVA S= 150MVA Base voltage VB = 33kV Reactance per unit = 0.23  Reactance?

Q: A 40 KVA, 1000 V/ 400 V, 50 Hz, single phase transformer has HV and LV side winding resistance as…

A: Given- 40 KVA, 1000 V/400 V, 50 Hz, single phase transformer, HV side winding resistance = 0.7 ohm,…

Q: A 50 kVA transformar has a core loss of 500 W and full load core loss of 900 W. The load at which…

A:

Q: A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase.…

A: Scott connection is used to convert a balanced three-phase into balance 2 phases or vice versa. It…

Q: B)-Bescribe various losses in transformer. Explain how each loss varies with load current, supply…

A: Type of transformer  Single phase transformer  Three phase transformer  Star Star connection  Star…

Q: an ideal transformer circuit is shown in Figure Q4(a). Its primary and secondary turns are 400 and…

A:

Q: talk about coreless transformer

A: The brief explanation is as follows.

Q: The purpose of using oil in transformers is due to:

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If the core loss of single phase transformer at full load is 98 W, then the core loss at 25% of load…

A: In the transformer core losses independent of load.   We can also say in the transformer core losses…

Q: A single-phase transformer 11000/420 V, 50 kVA, 50 Hz has resistance and leakage reactance as…

A:

Q: In a single-phase transformer induced electromotive force per turn on secondary winding is Select…

A: Let E2 be the induced electro magnetic force in secondary winding and N2  be the number of turns in…

Q: Maximum efficiency of a single phase transformer occurs at 80 percent of full load. What is the…

A: Given that maximum efficiency of single phase transformer occurs at 80 percent of full load.…

Q: The ratings of a three-winding transformer are: Primary: Y connected, 66kV, 20MVA Secondary: Y…

A: Given data: System base=20 MVA a) The expression for the per unit value of reactance Xst is given…

Q: A power company supplies power to a small town that is 10 km away from the nearest substation. The…

A: The above question is based on the power system transmission network.To transfer impedance from one…

Q: 6- A 100KVA, 1000/10000V, SOHZ transformer has an iron loss of 1200w. the copper loss with 6A in the…

A: Transformer:  Transformer is a static electrical device which transfers power from one circuit to…

Q: Complete the blank The copper loss of a transformer at 4/5 of the full load is 4000 W,  full load…

A:

Q: A 50Hz, single phase transformer has a ratio of N2:N1 = 0.2. On full-load, the secondary current is…

A: On the transformer primary side a resistance of 0.8ohm and reactance of 4 ohm is connected while on…

Q: Draw the scheme of a single-phase transformer with two secondary windings and mark the main symbols…

A: Transformer: A transformer is a electrical equipment whose main purpose is to transfer electrical…

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.