LFZBJ-10 High Voltage Current Transformer (High Prototype)Detailed product description：

LFZBJ-10W1, LFZBJ-10GYW1, LDZBJ-10W1, LDZBJ-10GYW1 High Voltage Current Transformers

This type of ordinary current transformer is suitable for areas with an altitude of 1000m and below, while high-altitude products are suitable for areas with an altitude of 4000m and below. It is used for precision electrical measurement and relay protection in power systems with a frequency of 50Hz and a maximum operating voltage of 12kV.
Normal usage conditions
Environmental temperature: The normal type is+40 ℃~-15 ℃; The plateau type ranges from+25 ℃ to -15 ℃.
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 vibration 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 ℃.
Product execution standard: GB1208-1997 "Current Transformers"
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: Three 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.

insulation level

Ordinary type: 12/42/75kV; Plateau type: 12/61/110 kV (areas below 4000m)

accuracy level

0.2S、0.2、 0.5、5P、10P

partial discharge

The applied voltage is 80% of the power frequency withstand voltage, and after 60 seconds, it drops to the measured voltage of 8.3 kV with a discharge capacity of ≤ 20pC.

Rated primary current (A)

Rated secondary load (VA) COS φ=0.8

Accuracy limit coefficient for 5P and 10P levels

1S short-time thermal current (kA)

Dynamic stability current (kA)

0.2S

zero point two

zero point five

5P、10P

1A

5A

1A

5A

1A

5A

1A

5A

1A

5A

twenty

ten

15 20 30

ten

15 20 30

ten

15 20 30

thirty

fifty

ten

ten

four

ten

thirty

six

fifteen

forty

eight

twenty

fifty

ten

twenty-five

seventy-five

sixteen

forty

one hundred

twenty-two point five

fifty-five

one hundred and fifty

twenty-five

sixty-three

2 00

thirty-three

eighty

three hundred

forty-five

one hundred and ten

400~2000

eighty

two hundred

1. Two coil and three coil products: Appearance: 500 × 200 × 295 (length × width × height), 466 × 200 × 280 (400-600/5), 500 × 200 × 280 (800-2000/5), Level combination: 0.2S/0.2S; 0.2S /5P； 0.2S/0.2S/0.2S； 0.2S/0.2S/5P。 The two measurement levels are interchangeable, and special products with two coils can also be produced using a three coil shape.

LFZBJ-10 High Voltage Current Transformer (High Prototype)