You didn't supply make/model/year and if it is drive by wire or cable operated, but can back probe the signal wire/pin at the throttle body. When the throttle is operated (by hand if cable operated, or with someone stepping on the pedal for DBW). You see a voltage change on your meter usually between 0<5 volts, if it stays at 5volts it is shorted to power.
the voltage "persay" comes from the ecu(computer) i would not use a test light to see if voltage is present thay can be intrusive and short the ecu u will need a dvom meter and service manual to test that circut
In Short circuit test High Voltage side is feeded with 2-5% of the High Voltage rating to circulate approximately full load current in low voltage winding by short circuiting it. Low voltage is generally short circuited to facilitate measurements because it is more difficult to measure the quantities at high voltages.
in the short circuit test we applied supply voltage on L.V side and short circuit the H.V side and connect the ammeter in H.V circuit to measure the short circuit current. with the help of s.c test we measure the copper losses in the transformers.
I assume "tension" in this question should be replaced with "voltage". Short circuit tests are often performed from the lower voltage side of the transformer, since a lower voltage source is then required to perform the test. Often times the test lab may not have a source that can output a high enough voltage to perform from the high voltage winding.
generally open circuit test is performed on the low voltage side.....not on high voltage side.... becuase on low voltage side, we can apply that low voltage very easily ( i.e with a less amount of source is required)... whereas on high voltage side, we need a large power source in order to apply full voltage... in short circuit test, we will test on high voltage side by keeping Low voltage side being short circuit.because high voltage side needs less current source than low voltage side....
open circuit & short circuit test, insulation resistance test, turns ratio, efficiency, if it is oil cooled then breakdown voltage of oil, voltage regulation and definitely visual inpection...
Because a short-circuit test is done at very low voltage to check the transformer windings on their maximum current. The low voltage ensures that the magnetic flux in the transformer's iron core is very low so that the eddy-current losses, usually known as iron losses, are negligible.
Open circuit means the circuit is not continuous . A short circuit is continuous but has a fault connecting between either live to neutral or earth .As result of this we saw that this answer is unsufficent to explain short and open circuit on the other hand you can use this answer also like i did:)
1)Short circuit test is performed at rated current. As the rated current on high voltage side is much less than low voltage side, so the rated high voltage side current is easily achieved compared to low voltage side. 2)Also because we cannot short circuit high voltage side, as, if we short circuit high voltage side, voltage of high voltage side essentially falls to zero and since VI=constant, so the high voltage side current will be very high and will burn the winding.
To test the Throttle Position Sensor (TPS) on a 1997 Chevy Lumina, first, locate the TPS on the throttle body. Use a multimeter to check the voltage output by connecting the positive lead to the sensor's signal wire and the negative lead to a ground. With the ignition on (but the engine off), the voltage should be around 0.5 to 1.0 volts at closed throttle and increase smoothly to about 4.5 to 5.0 volts at wide open throttle. If the readings are outside these ranges or show erratic behavior, the TPS may need replacement.
To test a throttle position sensor (TPS) on a 1994 Range Rover, first, you can use a multimeter to measure the voltage output of the sensor while the throttle is being opened and closed. The voltage should change smoothly and consistently between 0.5 to 4.5 volts as the throttle is actuated. If you notice any abrupt changes, drops, or a lack of response, the TPS may be faulty. Additionally, you can check for any stored trouble codes in the vehicle's onboard diagnostics system that could indicate TPS issues.
the winding would burn....