transformer cooling, Electrical Engineering

Assignment Help:
An oil-filled transformer has a c.m.r. of 500 kVA which allows it to run
continuously in an ambient of 35°C with an oil temperature rise of
50°C. The transformer has a time constant of 1.5. hours and the ratio of
copper losses to iron losses at c.m.r. is 1.5:1.
After switch-on, the transformer supplies a load of 600 kVA for one
hour and the load then rises to 750 kVA. Calculate the period of time
that the transformer can supply this load without exceeding its rated
maximum temperature. Sketch the heating curves for the two loads.

Related Discussions:- transformer cooling

Electrical Safety Management, What will this voltmeter register when connec...

What will this voltmeter register when connected to a battery as shown(assume a battery voltage of 6 volt)?

Substations, How to calculate Electrical losses by transformation

How to calculate Electrical losses by transformation

Show how a 16-to-1 multiplexer implement the logic function, Q. Show how a ...

Q. Show how a 16-to-1 multiplexer can be used to implement the logic function described by the following truth table.

Different types of probes used in cathode ray oscilloscope, Q.   Explain th...

Q.   Explain the different types of probes used in cathode Ray Oscilloscope (CRO). Sol. probes: The probe performs the very important function of connecting the test circuit

add instruction, ADD Instruction This  instruction use to add  content...

ADD Instruction This  instruction use to add  contents of any  register or memory  location with the  contents of accumulator. There are two  formats for ADD  instruction to ad

Determine the magnetic flux, Determine the magnetic flux: A coil is wo...

Determine the magnetic flux: A coil is wound uniformly with 300 turns over a steel ring of relative permeability 900, with a mean circumference of 40mm and cross-sectional are

Show application of bistable multivibrator, Q. Show Application of bistable...

Q. Show Application of bistable multivibrator? · Bistable multivibrator is used as counters and storing of binary information. · It is used as frequency divider in timing ci

Compare call and push instructions, Compare CALL and PUSH instructions ...

Compare CALL and PUSH instructions CALL PUSH When CALL is implemented the microprocessor automatically stores the 16-bit address of the instruction next to CALL on the sta

Zener diode, I need to know about the zener diode

I need to know about the zener diode

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd