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Publish: 2021-05-26 03:20:32
1. Equivalent to the primary is parallel, the change of capacitance depends on whether it is step-up transformer or step-down transformer, and the equivalent capacitance of step-down transformer decreases in the past
2. Yes, as long as the voltage value of the secondary input is the same as its rated value, so that other secondary and primary outputs are output, and the total output power will become the power of this secondary
if the voltage value of that secondary input is lower than its rated value, all output voltages will be reced proportionally.
if the voltage value of that secondary input is lower than its rated value, all output voltages will be reced proportionally.
3. If several primary transformers are connected in series, according to the voltage division principle of the series circuit, the voltage applied to the primary of each transformer will certainly drop. There is no doubt that the secondary output voltage will drop in proportion. According to the working principle of transformer, it is not difficult to analyze: the ratio of primary and secondary voltage is equal to the ratio of primary and secondary turns
"different secondary series connection of the same transformer can increase the output voltage" -- it depends on how the series connection is made and the phase problem should be considered. If it is in series in the same direction, the output voltage is increased. Because this is equivalent to combining multiple coils into one, and the voltage increases with the number of turns. It's very simple, just like two 1.5V batteries connected in series in the same direction get 3V. But if it is in reverse series, the output voltage will drop, just as the total voltage of two 1.5V batteries in reverse series is 0V. In addition, the term "transformer secondary series connection" refers to series connection in the same direction, just as the term "battery series connection" refers to series connection in the same direction
"multiple primary transformers in series will rece the secondary output voltage" -- this is a conclusion drawn from the comparison of different conditions: only take the secondary voltage of a single transformer as an example“ The equivalent comparison of "multiple transformers in primary series" is "multiple transformers in secondary series": at this time, it will be found that the total output voltage does not change.
"different secondary series connection of the same transformer can increase the output voltage" -- it depends on how the series connection is made and the phase problem should be considered. If it is in series in the same direction, the output voltage is increased. Because this is equivalent to combining multiple coils into one, and the voltage increases with the number of turns. It's very simple, just like two 1.5V batteries connected in series in the same direction get 3V. But if it is in reverse series, the output voltage will drop, just as the total voltage of two 1.5V batteries in reverse series is 0V. In addition, the term "transformer secondary series connection" refers to series connection in the same direction, just as the term "battery series connection" refers to series connection in the same direction
"multiple primary transformers in series will rece the secondary output voltage" -- this is a conclusion drawn from the comparison of different conditions: only take the secondary voltage of a single transformer as an example“ The equivalent comparison of "multiple transformers in primary series" is "multiple transformers in secondary series": at this time, it will be found that the total output voltage does not change.
4. The primary coil series capacitance can eliminate the clutter, but the carrying capacity is reced.
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