LB6-126KV series high-voltage current transformerDetailed product description：

The LB6-126KV series high-voltage current transformer is an oil immersed fully sealed insulation structure and outdoor product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, and relay protection.

2、 LB6-126KV series high-voltage current transformer model meaning


Anti pollution level (W2 is level III pollution, W3 is level IV pollution, GY is high-altitude area)
Rated voltage level, kV
Design Number
With protection level
current transformer

3、 Product Features and Structure Introduction
The LB6-126KV series high-voltage current transformer is an oil immersed fully sealed insulation structure, with the main insulation being an oil immersed paper capacitor composite insulation and the primary winding being in a "U" shape; The device is installed in an oil tank filled with transformer oil and undergoes vacuum drying and oil immersion treatment; The primary output terminal is connected in series or parallel to the oil storage tank as an external switching device, which can be switched outside the oil storage tank; A stainless steel metal expander is used as the oil compensation device, and the oil level indicator is indicated by the pointer position on the upper window of the expander. The secondary winding can be combined arbitrarily according to user needs, with strong load capacity. The internal electric field distribution is uniform and the field strength is low, with low partial discharge.

4、 Technical parameters of LB6-126KV series high-voltage current transformer

Rated insulation level kV	126/230/550
Rated primary current A	2×50～2×1250
Rated secondary current A	5 or 1
accuracy level	0.2S, 0.5S, 0.2, 0.5, 5P, 10P can be equipped with taps according to requirements
Rated output VA	20. 30, 40, 50, 60, etc
Number of secondary coils	3~8
Accurate level combination	Any combination of 0.2S/0.5/5P/5P/5P, etc
Measurement level instrument security factor	Fs≤5
Protection level accuracy limit coefficient	10. 15, 20, 25, 30, 35, 40, etc
Short time thermal current kA/s	22.5~50/1, can be specially designed according to user needs
Rated dynamic stability current kA	56.25~125, can be specially designed according to user needs
Product dielectric loss factor	≤0.005
Partial discharge amount pC	≤5
Radio interference level μ V	≤250
External insulation creepage distance mm	31503906, etc
Product altitude m	≤3500

5、 LB6-126KV series high-voltage current transformer appearance and installation dimensions

LB6-126KV series high-voltage current transformer