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LZZBW-15 Outdoor current transformer 1
LZZBW-15 Outdoor current transformer 1

LZZBW-15 Outdoor current transformer

This resin cast type current transformer is a support structure. It is suit to the polluting and humidity area.It is a kind of high accuracy, high dynamic stability, high thermal stability and large capacity product. Its metering iron core adopts the super crystallite magnetizer. This current transformer has the merits of small volume, light weight and can be installed at free direction.

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    Description of product's type

    technical specification

    (1) Rated insulation level:15/38/95kV;

    (2) Standard: IEC60044.1-2003 Current transformer;

    (3)Load power factor:COSΦ=0.8(delay);

    (4)Rated secondary current: 5A or 1A;




    (5)Meter protection factor:FS≤10;

    (6) Surface creepage distance:confirm to the requirement of pollution class II;

    (7) Partial discharge level: confirm to the requirement of GB7354-97,visual discharge electricity less than 20PC;

    (8)Main technical specification as below:

    1502176188201085148 - 副本
    1502244698523039934 - 副本

    Structure feature

    1. Cores and windings are cast together in epoxy resin.

    2. The transformer cores are manufactured of high-grade magnetic material.

    3. The transformer is fixed to the base plate by four screws.

    4. The bolted earthed clamp is located on the transformer base plate.

    5. The secondary terminals are covered with a protective cover.

    6. As the high level of insulation,it can work normally in damp and Pollution II condition.

    7. The cores and windings are cast together.

    8. Three optional ways of installation,correspondent to product version of A/B/C.

    9. The outlet terminals of theprimary winding and secondary winding, are respectively marked as P1,P2 and S1,S2.

    10. The case that, primary current runs from P1 to P2 and secondary current flows from S1 to S2 through external circuit, is called subtractive polarity. The secondary circuit should not be open, when primary current is flowing. Otherwise,a high voltage will be generated.

    11. The transformers are equipped with primary winding and secondary windings.The windings are fixed to the iron core bar by casting,

    12. For the two secondary windings,the first one is for either measuring or protecion purposes; the other is for being connected into an open-delta connection in a three-phase system.

    13. The outlet of the primary winding is insulated from the earth to a correspondent level.

    14. The secondary terminal board is covered with a transparent cover made of plastic.

    Technical specification

    (1) Rated insulation level:15/38/95kV;

    (2) Standard: IEC60044.1-2003 Current transformer;

    (3) Load power factor:COSΦ=0.8(delay);

    (4) Rated secondary current: 5A or 1A;

    (5) Meter protection factor:FS≤10;

    (6) Surface creepage distance:confirm to the requirement of pollution class II;

    (7) Partial discharge level: confirm to the requirement of GB7354-97,visual discharge electricity less than 20PC;

    (8) Main technical specification as below:

    Ratio(A)

    Class

    Capacity

    Tender No.

    200-400

    0.5S(IEC)

    12.5VA

    TMIMT-3C

    Outline Dimension

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