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LZZBJ12-12 Current Transformer 1
LZZBJ12-12 Current Transformer 1

LZZBJ12-12 Current Transformer

Type LZZBJ12-12 current transformer is used for meteringand protective relaying purposes for installation in indoor up to 12kV rated votage frequency 50/60Hz,the current transformer is used for metering and protective relaying action in indoor and especially is suited for using in the narrow case(fixed)ring-network switchgear.

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    Execution Standards

    图片1 (2)

    technical specification

    1. Rated insulation level:12/42/75kV;

    2.Frequency(Hz):50/60Hz;

    3. Rated primary current:5-3150;

    4. Rated secondary current:5A;

    5. Accuracy classes:0.5/5P;

    6. Metering pole safeguard system:FS<10;

    7. 5P rated accuracy limited factor:5P10;

    8. The measurement of partial dis charge level is in accordance with GB7354-87 and IEC 185 Apparent partial discharge level not more than 20PC;

    9. Power factor:0.8 (hysteresis);

    10. Rated primary current accuracy classes,rated output and short-time thermal Current see table.

    1505705039555084542 - 副本
    1502277453959005815 - 副本

    Structure feature

    The product has a leg type.totally-enclosed structure and its ring core,primary winding and secondary winding are casted resin nsulated. Reinsforced insulation makes it workable uner humidity condensation nd pollution Il.Three wiring ways are for your choise(A.B.C).


    The outlet marks of the product are:primary P1 to P2,the secondary current from S1 to S2 through outside returncircuit. High voltage appears if secondary return circuit opens while primary current is flowing by.

    Technical specification

    Type

    Rated
    primary
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/150b 2s

    5

    0.2S/10P10

    10/15

    0.5

    1.25

    0.5/10P10

    10/15

    10

    0.2S/10P/10

    10/15

    1

    2.5

    0.5/10P10

    10/15

    15

    0.2S/10P10(15)

    10/15

    1.5

    3.75

    0.5S/10P10(15)

    10/15

    0.2/10P10(151

    10/15

    1.5

    3.75

    0.5/10P10(15)

    15/15

    20

    0.2S/10P10(15)

    10/15

    3.0

    7.5

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    2.0

    5

    0.5/10P10(15)

    10/15

    Type

    Rated
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/150b 2s

    30

    0.2S/10P10(15)

    10/15

    4.5

    11.25

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    3.0

    7.5

    0.5/10P10(15)

    10/15

    40

    0.2S/10P10(15)

    10/15

    6.0

    15

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    4.5

    11.25

    0.5/10P10(15)

    10/15

    50

    0.2S/10P10(15)

    10/15

    7.5

    18.75

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    5.0

    12.5

    0.5/10P10(15)

    10/15

    60

    0.2S/10P10(15)

    10/15

    9.0

    22.5

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    6.0

    15

    0.5/10P10(15)

    10/15

    75

    0.2S/10P10(15)

    10/15

    10

    25

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    7.5

    18.5

    0.5/10P10(15)

    1015

    100

    0.2S/10P10(15)

    10/15

    15

    37.5

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    10

    25

    0.5/10P10(15)

    10/15

    150

    0.2S/10P10(15)

    10/15

    22.5

    56

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    15

    37.5

    0.5/10P10(15)

    15/15

    200

    0.2S/10P10(15)

    10/15

    31.5

    80

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    21

    52.5

    0.5/10P10(15)

    15/15

    250

    0.2S/10P10(15)

    10/15

    45

    112.5

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    31.5

    80

    0.5/10P10(15)

    10/15

    300

    0.2S/10P10(15)

    10/15

    45

    112.5

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    31.5

    80

    0.5/10P10(15)

    10/15

    400

    0.2S/10P10(15)

    10/15

    45

    112.5

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    45

    112.5

    05/10P10(15)

    10/15

    Type

    Rated
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/15Ob 2s

    500

    0.2S/10P10(15)

    10/15

    63

    130

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    45

    112.5

    0.5/10P10(15)

    15/15

    600

    0.2S/10P10(15)

    10/15

    80

    160

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    63

    130

    0.5/10P10(15)

    10/15

    800

    0.2S/10P10(15)

    10/15

    80

    160

    0.5S/10P10(15)

    10/15

    0.2/10P10(15)

    10/15

    80

    160

    0.5/10P10(15)

    20/15

    1000

    0.2S/10P10(15)

    15/20

    80

    160

    0.5S/10P10(15)

    15/20

    0.2/10P10(15)

    15/20

    80

    160

    0.5/10P10(15)

    20/20

    1200,1250

    0.2S/10P10(15)

    15/20

    100

    160

    0.5S/10P10(15)

    15/20

    0.2/10P10(15)

    15/20

    100

    160

    0.5/10P10(15)

    20/20

    LZZBJ12-12
    AS12/185b 2s

    5

    0.2S/10P10

    10/20

    1.0

    2.5

    05S/10P10

    10/20

    0.2/10P15

    10/20

    0.2

    1.25

    0.5/10P15

    20/20

    10

    0.2S/10P10

    10/20

    2.0

    5.0

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    1.0

    2.5

    0.5/10P15

    20/20

    15

    0.2S/10P10

    10/20

    4.5

    11.25

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    1.5

    3.75

    0.5/10P15

    20/20

    20

    0.2S/10P10

    10/20

    6.0

    15

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    3.0

    75

    0.5/10P15

    20/20

    30

    0.2S/10P10

    10/20

    12

    30

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    4.5

    112.5

    0.5/10P15

    20/20

    40

    0.2S/10P10

    10/20

    16

    40

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    6.0

    15

    0.5/10P15

    20/20

    Type

    Rated
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/185b 2s

    50

    0.2S/10P10

    10/20

    21

    52.5

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    7.5

    18.75

    0.5/10P15

    20/20

    60

    0.2S/10P10

    10/20

    21

    52.5

    0.5S,10P10

    10/20

    0.2/10P15

    10/20

    9.0

    22.5

    0.5/10P15

    20/20

    75

    0.2S/10P10

    10/20

    31.5

    80

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    10

    25

    0.5/10P15

    20/20

    100

    0.2S/10P10

    10/20

    45

    112.5

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    21

    52.5

    0.5/10P15

    20/20

    150

    0.2S/10P10

    10/20

    45

    112.5

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    31.5

    80

    0.5/10P15

    20/20

    200

    0.2S/10P10

    10/20

    45

    112.5

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    45

    112.5

    0.5/10P15

    20/20

    250

    0.2S/10P10

    10/20

    45

    112.5

    0.5S/10P10

    10/20

    0.2/10P15

    10/20

    45

    112.5

    0.5/10P15

    20/20

    300

    0.2S/10P10

    10/30

    63

    130

    0.5S/10P10

    10/30

    0.2/10P15

    10/200

    45

    112.5

    0.5/10P15

    20/20

    400

    0.2S/10P10

    10/30

    63

    130

    0.5S/10P10

    10/30

    0.2/10P15

    10/20

    63

    130

    0.5/10P15

    20/20

    500

    0.2S/10P10

    10/30

    63

    130

    0.5S/10P10

    10/30

    0.2/10P15

    10/20

    63

    130

    0.5/10P15

    20/20

    600

    0.2S/10P10

    10/30

    80

    160

    0.5S/10P10

    10/30

    0.2/10P15

    10/20

    80

    160

    0.5/10P15

    20/20

    Type

    Rated
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/185b 2s

    800

    0.2S/10P10

    15/30

    80

    160

    0.5S/10P10

    15/30

    0.2/10P15

    15/20

    80

    160

    0.5/10P15

    30/20

    1000

    0.2S/10P10

    15/30

    80

    160

    0.5S/10P10

    15/300

    0.2/10P15

    15/20

    890

    160

    0.5/10P15

    30/20

    1200,1250

    0.2S/10P10

    15/30

    100

    160

    0.5S/10P10

    15/30

    0.2/10P15

    15/20

    100

    160

    0.5/10P15

    30/20

    1500,2500

    0.2S/10P10

    20/30

    100

    160

    0.5S/10P10

    20/30

    0.2/10P15

    30/30

    100

    160

    0.5/10P15

    60/30

    300,3150

    0.2S/10P10

    20/30

    100

    160

    0.5S/10P10

    20/30

    3000,3150(1)

    0.2/10P15

    30/30

    100

    160

    0.5/10P15

    60/30

    3000,3150(2)

    0.2S/10P15

    20/20

    100

    160

    0.5S/10P15

    20/20

    Note:(1) Means rated secondary currentonly can be5A;

    (2) Means rated secondary current only canbe 1A.

    Type

    Rated
    primary
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/S)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/150b 4s

    20,30,40,
    50,75,100

    0.2S/0.2/5P10

    10/10/30

    15011n

    37511n

    0.2S/0.5/5P15

    10/20/20

    0.5S/0.5/5P20

    10/10/15

    0.2S/5P10/10P15

    10,10/15

    0.5S/5P10/10P20

    10/10/10

    150,200

    0.2S/0.2/5P10

    10/10/30

    31.5

    80

    0.2S/0.5/5P15

    10/20/20

    0.5S/0.5/5P20

    10/10/15

    0.2S/5P10/10P15

    10/10/15

    0.5S/5P10/10P20

    10/10/10

    300,400

    0.2S/0.2/5P10

    10/10/30

    45

    112.5

    0.2S/0.5/5P15

    10/15/20

    0.5S/0.5/5P20

    10/15/15

    0.2S/5P10/10P15

    10/15/20

    0.5S/5P10/10P20

    15/15/15

    Type

    Rated
    primary
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/150b 4s

    500

    0.2S/0.2/5P10

    10/10/30

    63

    130

    0.2S/0.5/5P15

    10/10/20

    0.5S/0.5/5P20

    10/15/15

    0.2S/5P10/10P15

    10/15/20

    0.5S/5P10/10P20

    15/15/15

    600,800

    0.2S/0.2/5P10

    10/10/30

    63

    130

    0.2S/0.5/5P15

    10/15/20

    0.5S/0.5/5P20

    10/15/15

    0.2S/5P10/10P15

    10/15/20

    0.5S/5P10/10P20

    15/15/15

    1000,1200,1250

    0.2S/0.2/5P10

    15/15/30

    80

    160

    0.2S/0.5/5P15

    15/20/20

    0.5S/0.5/5P20

    10/20/15

    0.2S/5P10/10P15

    15/15/20

    0.5S/5P10/10P20

    20/15/15

    Type

    Rated
    primary
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/S)

    Rated
    dynamic
    current(kA)

    LZZBJ12-12
    AS12/185b 4s

    20,30,40,
    50,75,100

    0.2S/0.2/5P10

    10/10/40

    15011n

    375l1n

    0.2S/0.5/5P15

    10/15/30

    0.5S/0.5/5P20

    10/15/20

    0.2S/5P10/10P15

    10/20/20

    0.5S/5P10/10P20

    10/20/15

    150,200

    0.2S/0.2/5P10

    10/10/40

    31.5

    80

    0.2S/0.5/5P15

    10/15/30

    0.5S/0.5/5P20

    10/15/20

    0.2S/5P10/10P15

    10/20/20

    0.5S/5P10/10P20

    10/20/15

    300,400

    0.2S/0.2/5P10

    10/10/40

    45

    112.5

    0.2S/0.5/5P15

    10/15/30

    0.5S/0.5/5P20

    10/15/20

    0.2S/5P10/10P15

    10/20/20

    0.5S/5P10/10P20

    10/20/15

    500

    0.2S/0.2/5P10

    10/10/40

    63

    130

    0.2S/0.5/5P15

    10/15/30

    0.5S/0.5/5P20

    10/15/20

    0.2S/5P10/10P15

    10/20/20

    0.5S/5P10/10P20

    10/20/15

    600,800

    0.2S/0.2/5P10

    10/10/40

    63

    130

    0.2S/0.5/5P15

    10/20/40

    0.5S/0.5/5P20

    10/20/30

    0.2S/5P10/10P15

    10/20/30

    0.5S/5P10/10P20

    10/20/20

    Type

    Rated
    current(A)

    Accuracy
    classes

    Rated
    output(VA)

    Short-time
    thermal
    current(kA/s)

    Rated
    dynamic

    LZZBJ12-12
    AS12/185b 4s

    1000,1200,1250

    0.2S/0.2/5P10

    15/15/40

    85

    160

    0.2S/05/5P15

    15/30/30

    0.5S/0.5/5P20

    10/30/20

    0.2S/5P10/10PI5

    15/30/30

    0.5S/5P10/10P20

    30/30/20

    1500

    0.2S/0.2/5P10

    15/15/40

    100

    160

    0.2S/0.5/5P15

    15/30/40

    0.5S/0.5/5P20

    15/30/30

    02S/5P10/10P15

    15/30/30

    0.5S/5P10/10P20

    30/30/20

    2000

    0.2S/0.2/5P10

    15/15/40

    100

    160

    0.2S/0.5/5P15

    15/30/40

    05S/0.5/5P20

    15/30/30

    0.2S/5P10/10P15

    15/30/30

    0.5S/5P10/10P20

    30/30/20

    2500

    0.2S/0.2/5P10

    20/20/40

    100

    160

    0.2S/0.5/5P15

    20/40/40

    0.5S/0.5/5P20

    20/40/30

    02S/5P10/10P15

    20/30/30

    0.5S/5P10/10P20

    40/30/20

    3000,3150

    0.2S/0.2/5P10

    20/20/40

    100

    160

    0.2S/0.5/5P15

    20/40/30

    0.5S/0.5/5P20

    20/40/20

    0.2S/5P10/10P15

    20/20/20

    0.5S/5P10/10P20

    40/20/15

    Outline dimension

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