Three-phase ac current source straight for temperature sensor manufacturers

What is the difference between current temperature sensor and current transformer?

ac/dc current temperature sensor can detect and measure communication communication, measuring dc dc, need an external power source.

only measuring AC current transformer, the output signal of AC 5 a or AC1A, don't need the power converter.

common current transformer can only measure the alternating current, if the open circuit can produce high voltage, ac current transformer breakdown line insulation, serious when produce blow electrical personnel security, so, when using secondary side cannot open circuit, short break secondary side must meet.

what are the advantages of current temperature sensor?

current temperature sensor has a response time is short, high operating frequency, strong overload capacity, high degree of isolation, and many other advantages. In general, according to the input signal, appearance, inner hole size to select the current temperature sensor.

its numerous advantages, through the study of the accurate detection and control of large current, ensure the inverter products safe and reliable operation, the inverter in the normal output at the same time, to the abnormal condition timely treatment, improve the reliability of the converter, improve the safety quality of the frequency converter. So the advantage in hall current temperature sensor in the inverter is more and more obvious, has become an indispensable part of frequency converter in the industry.

current temperature sensor in the control and protection of the door into the system, the application of

the door into the system must provide security and protection for the users. Imagine a garage door locked people or cars in consequence. Current measurements can provide this kind of protection function.

electronic systems control garage doors, shutter and awning is gradually into People's Daily lives, and the protection performance is the most important function of must be taken into account when designing these systems. Current measurements can provide this kind of protection function.

used in garage doors, doors, shutters and awning on dc brush motor, at every time of normal opening and closing to produce its own repeatability of current distribution. The current waveform can be stored in the microcontroller. Current temperature sensor can provide dc brush motor current feedback at work, the door into the system manufacturer defined tolerance range, to that of the current waveform is stored in the microcontroller in the comparison. If the values do not match, the security problems. Micro controller will be alert and closed system or reverse rotation motor, to close the door again. The obstacles, person, or other object provides protection, at the same time protect the motor from damage caused by high current.

the difference between the voltage transformer and current temperature sensor detection current

current transformer, is the primary side large current, in proportion to fit through the instrument or use the relay, rated current 1 a to 5 a or the transformation of equipment. Its working principle and the transformer is similar.

1, a winding and high voltage circuit in series, only depends on the high pressure loop current, which has nothing to do with the secondary load.

2, secondary loop is not allowed to open, otherwise it will produce dangerous high voltage, endangers one's personal and equipment safety.

3, secondary loop must have some grounding directly, prevent after the primary and secondary windings insulation breakdown of high voltage, but only a little ground.

the current temperature sensor has the advantage of this structure is simple, accuracy and linearity of the measurement result is higher. Measurable dc, ac and all kinds of current waveform. But its measuring range, such as bandwidth is limited by certain. In this application, hall device is magnetic field detector, it detects the magnetic core air gap of the magnetic induction intensity. After current increase, core may reach saturation; With increasing frequency, magnetic core in eddy current loss, hysteresis losses, etc. It will rise. These will have an effect on the measurement accuracy. Of course, also can take some improvement measures to reduce these effects, such as choosing high saturation magnetic induction intensity of magnetic core materials; Made from multilayer magnetic core; Multiple hall element is used to test and so on.