The definition of residual current transformer(RCT)

Residual current transformers are also called leakage current transformers. It is one or three current transformers that are used to transform the residual current.

The residual current transformer is the detecting component of the leakage protector. Its main function is to detect the residual current (grounding fault current such as electric shock and leakage) through the main circuit of the transformer core, and convert the residual current of the primary circuit into a secondary circuit. Output voltage.

The advantages of residual current transformer?

The protection action setting current can be from mA level to A level, and has a high operational sensitivity. Therefore, the residual current protection device can be applied to the TT, IT, TN-S TN-C-S system grounding system. During installation, the A, B, and C three-phase wires pass through a remaining C.T together with the N line. For example: AKH-0.66L residual current transformer, dedicated to the collection of residual current, used in conjunction with electrical fire monitoring devices and motor protection devices. The product can have two outputs twice, and select one output 0-20mA or 0-2mA, and one output 0~1V.

Why we need to use residual current transformer?

We can use the rail mounting method of the transformer. This method is convenient and quick to install, saving manpower and material resources. Especially suitable for small spaces, such as drawers. This kind of installation method is suitable for AKH-0.66 series current transformer. The transformer is a clam shell design with beautiful appearance and convenient wiring.

Hefei Mycoil Technology Co.,LTD is a high tech enterprises. Our miniature precision transformers, current and voltage sensors have been widely used in various types of power meters, load control terminals, power saving devices, microcomputer protection devices, low voltage motor protectors, reactive power compensators and smart capacitors, electrical fire monitoring devices. 

Related Reading: High Precision Current Transformer,PCB mount current transformer supplier,Professional Magnetic Cores

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