February 10, 2020 Variable-Speed-Motor-Control-Swith

Switches To Control AC Motors

Can you vary the speed of an AC motor? AC motors are constant speed devices, but their speed may vary if the output voltage or frequency is modified. Why speed control switch is needed? Some loads require variable speed. If the load requires a variable speed (e.g. in case of traction motor), speed control becomes […]

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May 16, 2019 Temperature-Controls (1)

What is a Temperature Controller?

A temperature controller, as its name indicates, is a device that is used to control temperature. The temperature controller system has an input from a temperature sensor and has an output that is connected to a control element such as a heater or fan. How does a temperature controller works? The temperature controller reads an input […]

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May 8, 2019 Single-phase-autotransformers

What is an Autotransformer?

The autotransformer are a kind of electrical transformer where primary and secondary shares same common single winding. In other words, it’s a one winding transformer. An auto transformer is similar to a two winding transformer but differ in the way the primary and secondary winding are interrelated. In an auto transformer, one single winding is […]

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April 3, 2019 Temperature-Sensor-KTY-81

What are the temperature sensors used for?

A temperature sensor or thermal sensor is a device that, by mechanical or electrical means, transmits from one place (emitter) to another (receiver) the temperature of the emitter. That is, they are used for measuring the temperature and transmitting the signal to a remote control. Mechanical Temperature Sensors A mechanical temperature sensor consists of a […]

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March 21, 2019 Potentiometer TLR 016 EC Motors

What is a potentiometer?

Potentiometer definition: A potentiometer is a variable resistor mechanically used to measure the difference of electrical potential between two electrical terminals. The potential difference is what is commonly known as voltage. The first potentiometers and simpler are the rheostats. The potentiometer is a device that limits the passage of electrical current, causing a voltage fall. […]

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