Xi'an Xigao Electricenergy Group Co., Ltd.
Xi'an Xigao Electricenergy Group Co., Ltd.
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1.LB6-110kV CT Current Transformer High Voltage Power Transformer
LB6-110 110 kv oil immersed current transformer for oil paper insulation, outdoor products, for rated frequency 50Hz or 60Hz, rated voltage 110kV power system, for energy measurement, current measurement and relay protection purposes.
2.Introduction to Structure
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 ground reliably.
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 durably.
3.technical parameter
| Rated voltage | 110KV |
| Rated frequency | 50/60Hz |
| Rated insulation level | 126/230/550KV |
| Creepage distance | 3155mm |
| Flashover distance | 1150mm |
| Rated short-time thermal curent (kA) | 5.3~45kA/3s |
| Rated dynamic stability current (kA) | 13~115 |
| Rated primary current (A) | 50~3200A |
| Rated secondary current (A) | 1 or 5 |
| Accuracy class | 0.2,0.2S,0.5,0.5S,5P,10P any combinations |
| Rated burden (VA) | 15~60VA |
| Instrument security factor(FS) | ≤5 or 10 5 or 10 |
| Accuracy limit factor | 10,15,20,30 |
| Mounting hole dimension (mm) | 4 X 18 |
| Mounting dimension (mm) | 475 X 475 |
| Oil weight /Total weight (kg) | 120/450 |
| Outline Dimensions (mm) | (695±15) X570X (2150±15) |
4.TECHNICAL DRAWING
5.FAQ:
1. Send the technical data, better for all useful information; we will make a good recommendation.
possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.
5. Technology ensure the quality satisfy international request.