Question: A 6 0 0 - kVA transformer working at unity power factor has an efficiency of 9 2 % at both half load and full

A 600-kVA transformer working at unity power
factor has an efficiency of 92% at both half load
and full load. Determine the efficiency at 60% of
full load and 0.8 power factor lagging. What is the
maximum efficiency?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Electrical Engineering Questions!

Q:

The efficiency of a 4 0 0 kVA, 1 - phase transformer is 9 8 . 7 7 % when delivering full load at 0 . 8 power factor, and 9 9 . 1 3 % at half load and unity power factor. Calculate ( a ) the iron...

Q:

1.A recent critic bemoans what he calls "the Socratic fallacy," namely, the doctrine that one cannot recognize instances to which some general term applies unless one knows, and can give, the...

Q:

A 1, 10 kVA, 2400=240 V, 60 Hz distribution transformer has the following characteristics: Core loss at full voltage = 100 W Copper loss at half load = 60 W (a) Determine the efficiency of the...

Q:

QUESTION 3 A \ ( 1 0 \ mathrm { kVA } , 1 2 0 / 4 8 0 \ mathrm { ~V } \ ) single - phase transformer is to be used as an autotransformer to supply a 4 8 0 V circuit from a 6 0 0 V source. When it is...

Q:

The losses of a 30 kVA, 2000/200 V transformer are Iron losses: 360 W Full load copper losses: 480 W Calculate the efficiency at unity power factor for (i) full load and (ii) half load. Also...

Q:

A 100 KVA transformer has Its maxi- mum efficiency of 98%. at full load, and unity power factor during the day. it is loaded as follows: LM (@) 12 Hrs - 20 KW at a power factor of 0.5 lagging. (6) 6...

Q:

The following data were obtained on a 7 . 5 kVA, 5 0 0 / 2 5 0 V , 5 0 Hz singlephase transformer: Open - circuit test: 2 5 0 V , 1 . 2 5 A , 1 5 0 W ( on low voltage side ) Short - circuit test: 2 2...

Q:

A 120: 480-V, 10-kVA transformer is to be used as an autotransformer to supply a 480-V circuit from a 600-V source. When it is tested as a two-winding transformer at rated load, unity power factor,...

Q:

A single-phase, 50 kVA, 250 V/500 V two winding transformer has an efficiency of 95% at full load, unity power factor. If it is re-configured as a 500 V/750 V its efficiency at its new rated load at...

Q:

A simple phase transformer has a maximum efficiency of 90% at full load and unity power factor. Efficiency at half load at the same power factor is (A) 86.7% (B) 88.26% (C) 88.9% (D) 87.8%

Q:

When games were sampled from throughout a season, it was found that the home team won 127 of 198 professional basketball games, and the home team won 57 of 99 professional football games (based on...

Q:

Fusion Metals Company is considering the elimination of its Packaging Department. Management has received an offer from an outside firm to supply all Fusions packaging needs. To help her in making...

Q:

Funcin clave en las organizaciones trata del proceso de administrar y optimizar los recursos financieros (monetarios) de una empresa para garantizar su liquidez, solvencia y rentabilidad Grupo de...

Q:

QUESTION 1 What is the one-time application fee to join SABOR? What is the total cost of a primary membership to SABOR, whichalso includes a membership in the Texas Association of Realtors andthe...