LRGBJ series high-voltage transformerDetailed product description：

I. Overview
The LRGBJ series high-voltage 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、 LRGBJ series high-voltage 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 Serial Number
With protection level
current transformer
3、 Product Features and Structure Introduction
This type of current transformer is an oil immersed fully sealed insulation structure, with the main insulation being a composite insulation of oil immersed paper capacitor type, 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 LRGBJ series high-voltage transformers

model	LRGBJ-35	LRGBJ-66	LRGBJ-110	LRGBJ-220
The highest voltage of the equipment is kV	forty point five	seventy-two point five	one hundred and twenty-six	two hundred and fifty-two
Rated frequency Hz	fifty	fifty	fifty	fifty
Power frequency withstand voltage kV	ninety-five	one hundred and forty	two hundred and thirty	four hundred and sixty
Lightning full wave impulse withstand voltage kV	two hundred	three hundred and twenty-five	five hundred and fifty	one thousand and fifty
Cut off impulse withstand voltage kV	two hundred and thirty	three hundred and seventy-four	six hundred and thirty-three	one thousand two hundred and eight
Creepage distance mm	one thousand and twenty	one thousand eight hundred and twenty	three thousand one hundred and fifty	six thousand and three hundred
Rated primary current A	100-2500, 2 × 100-2 × 1000
Rated secondary current A	5 or 1
Accuracy level (can be combined arbitrarily)	0.2S、0.5S、0.2、0.5、5P、10P
Rated output VA	20. 30, 40, 50, 60
Accurate limit coefficient	10~40
Short time thermal current (maximum) kA/s	50/3
Rated dynamic stability current (maximum) kA	one hundred and twenty-five
The transformer can withstand a load of N	two thousand

5、 Appearance and installation dimensions

LRGBJ series high-voltage transformer