LZZBJ12A-10W1 type current transformerDetailed product description：

LZZBJ12A-10W1 current transformer is suitable for precise electrical measurement and relay protection in power systems with an altitude of 1000m and below, a rated frequency of 50Hz, and a maximum operating voltage of 12kV and below.
Environmental temperature: The normal type is+40 ℃~-15 ℃; The plateau type ranges from+25 ℃ to -15 ℃.
Environmental humidity: The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%; The daily average saturated vapor pressure shall not exceed 2.2 × 10-3MPa, and the monthly average shall not exceed 1.8 × 10-3MPa.
Product type: Indoor.
Atmospheric conditions: There is no pollution or explosive medium in the installation site that seriously affects the insulation of the transformer.
The installation site has no severe vibrations or bumps.
Open circuit is not allowed during product operation, otherwise there is a high voltage hazard.
The temperature during transportation and storage ranges from+40 ℃ to -15 ℃.
When using the product, the equipotential lead wire should be reliably connected to the high-voltage bus.

Technical parameters of LZZBJ12A-10W1 current transformer
Product execution standard: GB1208-1997 "Current Transformers".
Rated insulation level: 12/42/75kV.
Rated secondary current: 5A and 1A.
Instrument security factor: 0.2S level FS ≤ 5; Level 0.2 and 0.5 FS ≤ 10.
Insulation and heat resistance grade: Grade E.
Secondary structure: two coils, three coils, four coils.
The rated secondary lower limit load is 25% of the rated secondary load.
The rated primary current value, rated secondary load, accurate limit coefficient, rated short-time current value, level combination, and weight are listed in the following table. Please consult with the manufacturer for special specification products.

Rated primary current (A)

Rated secondary load (VA) COS ∧=0.8

5P、10P Accuracy limit Value coefficient

1S short-term Thermal current (KA/s)

Rated dynamic stable current （KA）

0.2S

zero point two

zero point five

5P、10P

1A

5A

1A

5A

1A

5A

1A

5A

1A

5A

fifteen

fifteen

fifteen

fifteen

fifteen

fifteen

fifteen

fifteen

fifteen

ten

ten

1/2

four

twenty

1.5/2

six

30, 40

3/2

ten

50, 60

5/2

sixteen

seventy-five

7/2

twenty-two

one hundred

12/2

thirty-eight

one hundred and fifty

18/2

sixty

two hundred

24/2

seventy-six

three hundred

fifteen

fifteen

31.5/3

one hundred

four hundred

45/3

one hundred and forty-four

five hundred

six hundred

seven hundred and fifty

one thousand

one thousand two hundred and fifty

one thousand and five hundred

LZZBJ12A-10W1 current transformer