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Differences between Current Transducers and Current Transformers

Current Transducers
Transducers, on the opposite hand, operate by changing power into different kinds of energy, like power, voltage, or current. They are used in a wide variety of applications, from microphones to car horns, and even photoelectric cells. Current transducers, in particular, convert alternating current (AC) to direct current (DC) signals for use in control systems that monitor electricity.

A Current Transducer appearance is nearly similar to a current transformer. We see these used a lot of in industries wherever we are observation motor or heater loads as an example. It has inbuilt circuitry to come up with a low-level DC signal base on the AC amps. This will usually be an analog 0-5VDC, 0-10VDC, or 4-20mA signal and will occasionally be a pulsed output where the frequency of the pulse is proportional to the amps going through the transducer.

As far as what does a CT stand for, I don't think there is a well-defined answer. Like an acronym, it can stand for many things and you must look at the context it is being used in to determine whether someone is talking about a current transformer or a current transducer. Also, many of us use the terms interchangeably and whereas i do not assume we'd like to correct them, it's necessary that you just understand that they're 2 completely different devices when selecting one for an application.


Current Transformers
Current transformers are used for measure energy consumption on the power grid. A current transformer is comparable to the other transformer. It has a primary, a magnetic core, and a secondary winding. The primary winding can sometimes be one flip and also the secondary winding is 10s or 100s of turns. Then by coupling the primary and secondary windings the amperage on the secondary winding will be proportional to the primary winding.

If an electric current is too powerful, it will render equipment and appliances inoperable. That’s why transformers are often used to “step down” or reduce a current to more usable levels. They do this by using two sets of coils—one to take in the input current and the other that steps down the current by a predetermined ratio.

For example, most current transformers are sized for a secondary current of 1 amp or 5 amps. If you've got a current transformer that's 1000:5 then which means that 0-5 amps on the secondary are going to be directly proportional to 0-1000 amps on the secondary. So if you've got zero amps on the first you'll have zero amps on the secondary, if you've got 250 amps on the first you'll have one.25 amps on the secondary, if you have 500 amps on the primary you will have 2.5 amps on the secondary, and if you have 1000 amps on the primary then you will have 5 amps on the secondary. Current transducers will be very dangerous and its kill you since an open secondary can produce voltages 100s or maybe 1000s of times on top of the first.

Some definitions could think about a Current Transducer as device that convert one kind of physical energy to a different, but in technology we frequently don't need energy to be regenerate and we only would like a transducer to purely convert any quite amount into an electrically measurable characteristic like impedance, capacitance, inductance that may don't have anything to do with energy conversion.


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