Current transformers produce a ratio of primary current in the secondary. If the secondary of a CT is open circuited, and primary current is flowing, the CT will try to push that same ratio of current through the secondary open circuit. This causes secondary voltage to climb until it the secondary open circuit flashes over. This can often damage the CT.
I am assuming the question is about the power / distribution transformer and not the current transformer. The primary current is a function of load connected on secondary. With the open secondary, there is no load, no current, it is open circuit. Hence no primary current. However there is always some small amount of no load current in the primary winding.
Yes you can use both. They are also acutally the easiest way to find a short in an automotive circuit.
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why does have to short-circuit secondary wire of current transformer ?
To electrically isolate the secondary circuit from the primary circuit, without changing the voltage.
The coil spring provides suspension and absorbs shock.
The function of an isolation transformer is to electrically-isolate the secondary circuit from the primary circuit, without changing the voltage levels. So, its secondary voltage will be the same as the primary voltage.
Same as any fuse in an electrical system- to protect components in the electrical system from damage in an overload or short circuit.
If the primary circuit is closed, the current will flow through the primary coil, inducing a magnetic field. This magnetic field will in turn induce a current in the secondary coil, allowing for the transfer of energy from the primary to the secondary circuit.
Most automotive circuit breakers reset themselves after they cool off. Some bigger trucks use circuit breakers that are reset manually. They have a button you push in to reset the breaker after it has cooled off.
it's function is to supply energy(electric)
A secondary current of 0 would suggest to me that the secondary circuit is open. A normally operating circuit with zero current flow would be very unusual. No load in secondary circuit. No secondary current can also be attributed to the primary power source open or an open primary winding.
The three circuits of a magneto are the primary circuit, secondary circuit, and charging circuit. The primary circuit controls the generation of an electrical current, the secondary circuit amplifies the voltage output, and the charging circuit ensures the magneto stays charged for optimal performance.
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YES
Identity the components of an automotive engine with diagram