NAV-TF2.8DA-8

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The NAV-TF2.8DA-8 is a highly efficient current transformer (CT), designed and manufactured by Shanghai Nianavo Automation Technology Co. Its main application area is in commercial electrical systems. It is a versatile, robust and reliable CT, capable of accurately measuring and monitoring current in multiple applications. The NAV-TF2.8DA-8 is suitable for use in medium and low voltage systems, and provides precise monitoring and metering of power, phases and frequency.

The NAV-TF2.8DA-8 is designed with high accuracy, low noise, and reliable performance. It is capable of monitoring three-phase current up to 30 amperes and provides precise measuring with an accuracy of 0.61%. It has an operating temperature range of -20 to 80ºC, and the mechanical construction is robust and offers vibration and shock resistance. With a Core Loss of less than 4.8VA, the NAV-TF2.8DA-8 can be used for applications such as electricity meter, electric bus, electric locomotive, protection and control system, energy meter, surge arrester, automatic transfer switch, reactive power compensation system, and monitoring system.

The NAV-TF2.8DA-8 working principle is based on the Faraday’s Law of Electromagnetic Induction. The core of the transformer is made up of a insulated magnetic material which is surrounded by a copper coil or wound wire. When an alternating current or voltage is applied across the input coil, a corresponding voltage is induced in the output coil. This induced voltage is proportional to the applied input current. This transformer works on the principle that the electromagnetic field created by the input current flows through the core of the transformer and produces a current in the secondary coil. This external current influences the primary coil and the secondary current is proportional to the primary current. This is the basic working principle of current transformer.

The NAV-TF2.8DA-8 is specifically designed for monitoring currents in commercial electrical systems. It is equipped with an alarm output which can be used for emitting an alert signal when the secondary current reaches a certain level. It also features phase differential protection that can be used for detecting any abnormal state in the system and precaution prevent any emergency. It is also designed to be simple to install and configure, and provides higher accuracy and stability compared to conventional CTs.

In conclusion, the NAV-TF2.8DA-8 is a highly efficient current transformer and is suitable for use in both medium and low voltage applications. It is designed with high accuracy, low noise, and reliable performance and provides phase differential protection for detecting any abnormal state. It is also simple to install and configure and is well-suited for use in the commercial electrical system.

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