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FL2-0.66 30I(B)
  • product manual

  • Overview:

    The low-voltage protection type current transformer is mainly applied to the relay protection circuit which passes through the busbar. The product is developed for the protection system to detect the short circuit fault, and has different accuracy level and accurate limit coefficient. It is widely used in low voltage distribution protection system.

    Features:

    FL2-0.66III current transformer, vertical square hole, can wear copper 1 ~ 3 bus, not only has the characteristics of type I, II, and can be used for power supply system measurement of energy with , And can be used with the current relay for protection.

    FL2-0.66III series of current transformer shell with flame retardant, Taiwan Chi Mei ABS injection molding, the core is oriented with cold-rolled silicon steel coil with the second wire using high-strength electromagnetic enameled wire, the product structure is novel, handsome in appearance, easy to install , High accuracy, large capacity.

    Used to collect low-voltage overload, short-circuit signal, and supporting the use of protective relays, a measurement range of 100-5000A, secondary output 5A, 1A, the main accuracy level: 5P10 and so on. Collecting low-voltage overload, short-circuit signal, and supporting the use of motor protection unit.

    Standards compliant

    Products meet GB GB20840.2-2014

    Technical indicators

    L protection CT primary current 100-5000A, secondary current 5A, 1A

    2 rated working voltage AC0.66kV (equivalent AC0.69kV, GB / T156-2007)

    3 rated frequency 50-60Hz

    4 ambient temperature -30 ℃ ~ 70 ℃, the maximum temperature of 120 ℃

    5 Altitude ≤ 3000m

    6 power frequency withstand voltage 4000V / 1min 50Hz

    7 for the direct invasion without rain and snow, no serious pollution and severe vibration of the place

    Selection instructions

    L According to a current and bus cross-section and other parameters to select the corresponding specifications products. One wire crosses the transformer window. Open the flip, through the pressure line for the second wiring, the second wiring leads to flip after the flip. Metering energy can be directly used to cover the closure of small holes sealed to prevent theft.

    L working current long-term does not exceed 1.1 times the rated value, allowing 1.2 times the rated value of short-term use, the time does not exceed 1h;

    L According to the measured current size, the selected rated current ratio, the general choice than the measured current about 2/3 of the rated current;

    2, the polarity of the product is expressed as: one wiring sign P1, P2, corresponding secondary wiring sign S1, S2; S1 denotes the same name terminal of P1, S2 denotes the same name of P2;

    3 measuring instrument connected to the S1, S2 side, then the total load connected to the loop should not exceed the rated load of the transformer, when the installation of the instrument position and the current transformer is far apart or loop load is large, should be preferred two Current of 1A specifications;

    4 Note According to the busbar specifications and the number of roots, select the matching window size of the transformer.


    Standard sizes


    Size
    specification

    Dimensions(mm)

    Bore mounting dimensions(mm)

    length

    width

    height

    length

    height

    FL2-0.66-30III

    60

    37

    79

    32

    20

    FL2-0.66-40III

    78

    46

    104

    42

    31

    FL2-0.66-50×30III

    91

    77

    127

    33

    55

    FL2-0.66-60×30III

    99

    77

    144

    33

    65

    FL2-0.66-80×30III

    99

    77

    167

    33

    85

    FL2-0.66-100×50III

    123

    77

    199

    55

    105

    FL2-0.66-130×50III

    123

    77

    230

    55

    135


    FL2-0.66IV medium voltage motor protection dedicated current transformer



    FL2-0.66IV 3.3kV protection with current transformer shell ABS material, with a strong heat resistance and mechanical properties. The transformer can be overloaded 10 times, dedicated to coal mines, and coal mine dedicated motor protection device supporting the use.


    model

    Rated current

    Rated load

    Accurate level

    FL2-0.66-30III

    100~400A/1A

    2.5~10VA

    5P10

    100~500A/5A

    FL2-0.66-40III

    150~800A/1A

    5~10VA

    5P10

    150~800A/5A

    FL2-0.66-50×30III

    200~1200A/1A

    5~10VA

    5P10

    200~1200A/5A

    FL2-0.66-60×30III

    200~2000A/1A

    5~10VA

    5P10

    200~2000A/5A

    FL2-0.66-80×30III

    300~2500A/1A

    5~20VA

    5P10

    300~2500A/5A

    FL2-0.66-100×50III

    600~4000A/1A

    5~30VA

    5P10

    600~4000A/5A

    FL2-0.66-130×50III

    600~5000A/1A

    5~30VA

    5P10

    600~5000A/5A