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What is the current of a microwave oven transformer?
Microwave ovens contain a very powerful high voltage transformer (MOT = microwave oven transformer), see photo. A typical output voltage is 2kVeff, at around 1000W power. This is equivalent to about 0.5Aeffoutput current @ 2kVeffoutput voltage. The short-circuit current is even higher. MOT. Transformer from microwave oven.
Is it safe to touch the HV output of a microwave transformer?
Seriously, DO NOT. However, just because something can be deadly doesn’t mean that it must be. Just don’t touch the HV output and you’ll live to tell stories about the MOT and its wonderful arcs (which are insanely bright). The secondary ground is connected to the transformer’s core, and it is neutral.
What happens when a microwave transformer is saturated?
Once a transformer is saturated it starts to draw a lot of extra amps; amps that do not make it to the secondary coil, but instead are wasted as heat. An MOT in saturation is likely to trip your circuit breaker and that’s no fun. To prevent excessive current draw MOTs are usually ballasted, and this can be accomplished a couple different ways.
How to calculate the voltage of a transformer?
Primary full-load current, I 1 = (50 × 1000 / 4000) = 12.5 A Secondary full-load current, I 2 = (50 × 1000 / 400) = 125 A b) Turns Ratio = N 1 / N 2 = V 1 / V 2 = (4000 / 400) = 10 You may also be interested in our Voltage Divider Calculator or Motor FLA Calculator
How much power does a microwave oven have?
Microwave ovens contain a very powerful high voltage transformer (MOT = microwave oven transformer), see photo. A typical output voltage is 2kVeff, at around 1000W power.
What’s the normal input voltage for a microwave?
I would assume it’s normal primary input voltage would be 120 volts (in USA) I copied this quote from a Google search. “A typical home microwave transformer has two secondary windings. One winding provides 3.1 to 3.2 volts, while the high voltage winding provides between 1800 – 2800 volts (average ~ 2200 volts ).
Why does my microwave oven have a high current?
When connecting a MOT to the mains (i.e. switching it on), there may be a very high current for some very short time. This may be enough to blow the fuse. This problem can be avoided by using a so-called switch-on current limiting circuit, see figure.