LMZBJ(3,4,5)-10W1(GYW1) type current transformerDetailed product description：

LMZBJ (3,4,5) -10W1 (GYW1) current transformer is suitable for areas with an altitude of 1000m and below, and 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 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 LMZBJ (3,4,5) -10W1 (GYW1) current transformer

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: 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.

LMZBJ3-10W1, LMZBJ3-10GYW1 (three coils)
LMZBJ4-10W1, LMZBJ4-10GYW1 (four coils)

Edge 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 once current （A）

Rated secondary load (VA) COS φ=0.8

5P and 10P level standards Limit coefficient

0.2S

zero point two

zero point five

5P  10P

1A

5A

1A

5A

1A

5A

1A

5A

5A

1A

5A

one thousand

twenty

twenty

twenty

twenty

twenty

forty

twenty

thirty

thirty

forty

fifteen

fifteen

one thousand and five hundred

fifty

forty

fifty

two thousand

thirty

thirty

sixty

two thousand and five hundred

sixty

three thousand

fifty

four thousand

five thousand

thirty

thirty

thirty

1. Three coil product: Appearance: 315 × 265 × 315 (length × width × height), Level combination: 0.2S/0.2S/0.2S; 0.2S/0.2S/5P 。 2. 4 Four coil products: Appearance: 315 × 265 × 380 (length × width × height), Level combination: 0.2S/0.2S/0.2S/0.2S; 0.2S/0.2S/5P/5P 。

LMZBJ5-10W1, LMZBJ5-10GYW1 (four coils)

rated once Current (A)	rated quadratic Current (A)	Rated secondary load (VA) cos∮=0.8				P-level accuracy limit coefficient 5P15 10P15	weight (kg)
		0.2S level	Level 0.2	Level 0.5	P-grade 5P15 10P15
five thousand	five	fifty	fifty	fifty	fifty	fifteen	fifty
six thousand
eight thousand
five thousand	one	thirty	thirty	thirty	thirty	fifteen	fifty

LMZBJ (3 4 5) -10W1 (GYW1) type current transformer