LB6-110 type current transformer has an oil-immersed fullysealed
structure. The primary coil is U-shape, the main body is fixed
on the bracket, the main insulation uses capacitor type oilpaper, use
the high voltage cable paper to wrap the core of primary coil, and set
up several capacitor shields among it, the internal shield is connected
to high potential, and the external shield is connected to
There is a porcelain bushing at the upper part of oil tank, and an
oil conservator is set up on top of porcelain bushing, primary outlet
terminal is on the oil conservator, series-parallel connection uses an
external switch device, i.e., the switching operation is carried out
outside the oil conservator.
Use a stainless steel expander as the oil compensation device to
ensure oil quality. Oil level is indicated by the pointer at the upper
window of expander.
A nameplate is set up on the oil tank to show the technical data. There are four lifting blocks for hoisting, an oil-discharge
valve and earthing bolts at the bottom of oil tank.
The product can have four to six secondary coils, the secondary measurement coil is made by microcrystalline alloy with
high magnetic conductivity, thus can ensure that the measurement precision reaches up to 0.2 grade or 0.2S grade. 2 600A
or above current transformer has a pigtail at measurement secondary coil, in order to get two current ratios.
Use new technology and new materials such as hot galvanizing or stainless steel standard parts etc for outside of the
product to make complete equipment rustless.
Reasonable and originative structure as well as advanced technology ensures that the product runs reliably, safely and