During a temperature-rise-test (TRT) in the lab the device to be tested is fed 4kA current taken directly from the grid. Usually the voltage applied is 1V so that the power during the test comes to about 4KW.
Now we are investigating how we can improve the efficiency of this lab and TRT.
Is it...
We have an asynchronous slip-ring induction Motor and we are currently evaluating ways to improve our energy efficiency. We have two concrete suggestions so far
Motor-Generator specs
6KV, 25MW
Pf= 0.9
R= 2975/min
f=50Hz
i) Slip-Ring Recovery System
Saving the slip power during the run-down...
(Drawing of the setup attached)
Background:
We conduct electrical tests in our lab on electrical components (circuit breakers, switchgears,etc). In the lab we have a short-circuit Generator that generates the electricity for the tests. The generator is powered by an asynchronous motor with a...
We have an asynchronous motor (slipring rotor) to run our short-circuit Generator which produces electricity for our testing procedures. Power factor = 0.9
During a capacitive current test we need only a capacitive current. During operation the output from our generator consists of both active...
Hi
We are measuring 3 Phase Power of an asynchronous Motor-Generator and have equipment installed on Phase 1 (L1) and Phase 3 (L3) to measure the current/voltage/power. I have some questions regarding the results.
Q) Why is the Power of Phase 1 positive and Phase 3 Negative ?
Q) How can I...
