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CTY Series current transformer
Current Transformer

CTY Series current transformer

A current transformer (CT) is a critical electrical device for controlling, monitoring, and protecting power supply. Small, measurable amounts of massive alternating current (AC) are generated. In power production, transmission, distribution, and industrial applications, high-current power circuits are typically connected by safety relays or sensitive measuring devices.

    Product Overview

    A CT uses electromagnetic induction and consists of two windings: a secondary winding with several turns connected to safety or measurement devices, and a primary winding with a few turns connected in series to a high-current circuit. The secondary winding, which is typically tuned to 5A or 1A for the majority of industrial applications, gets minimal current while the primary winding receives a lot. This proportionality, also known as the transformation ratio, protects people and equipment from dangerous voltages while allowing for precise current monitoring.

    CTs need sufficient insulation to sustain a high voltage between windings, linearity to reduce measurement error, and high precision for energy metering. The secondary winding should never be left open circuit while utilizing a CT. This is due to the possibility that an open circuit may produce extraordinarily high voltages that could harm electrical equipment.Lastly, current transformers are essential to guaranteeing the dependability, effectiveness, and safety of contemporary electrical systems since they allow for more accurate current monitoring and enhanced problem diagnoses.

    Technical Parameters

    Type

    Specification

    Lead length

    (mm) Outline Size

       c

       A

       B

    C

       D

       M

    CTY-45

    IOOA/5A

    1m

    45

    79

    84

    24

    66

    c5*8

    CTY-65

    250A/5A

    1m

    65

    100

    104

    24

    86

    c5*8

    CTY-80

    400A/5A

    1m

    80

    114

    119

    26

    101

    c5*8

    CTY-IOO

    630A/5A

    1m

    100

    136

    1 41

    26

      114

    c5*8

    Accuracy Grade:0.5

    Overload Current:≥1.2%ln