| Prod Model: |
LB7-220 |
| Application: |
Audio |
| Phase: |
Single |
| Coil: |
Core-type Transformer |
| Cooling Method: |
Dry-type Transformer |
| Winding Type: |
Separated Winding Transformer |
| Brand: |
Ville |
Product Description
LB7-220 type oil-immersed fully-sealed structure Current Transformer
This product has an oil-immersed fully-sealed structure. It consists
of metal expander, oil conservator, main body and other
accessories. The primary coil is U-shape, the main insulation uses
capacitor type oilpaper, use the high voltage cable paper to wrap
the core of primary coil, and set up several main shields among it.
The secondary coil is set up at the lower part of primary coil; the
whole main body is fixed in the oil tank. There is a bushing at upper
part of oil tank, and an oil conservator is set up on top of bushing, the
primary wire is lead out via the hole of oil conservator, the seriesparallel
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 showing the technical data and a description plate showing the coils arrangement schematic diagram are set
up on the oil tank. There are four holes or lifting blocks on the under-frame for hoisting the product, and an oil-discharge valve
and earthing bolts at bottom of oil tank.
The product can have five or 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.
The secondary terminal has limit and double sealing functions. The outlet box is made by stretching wholly; it is elaborate
and practical. The oil tank is carried out surface treatment; it is bright and durable.
Complete transformer is fully sealed. New technology and new materials such as hot galvanizing or stainless steel
standard parts etc are used for outside of the product to prevent from rustless and get long working life.
Reasonable and originative structure as well as advanced technology ensures that the product runs reliably, safely and
durably.
Ningbo Ville Electric Co., Ltd. One of wholly owned subsidiaries of VILLE INDUSTRY, It was invested by VILLE INDUSTRY, It is a well-know listed company in China specialized in R&D of electric power technology, equipment manufacturing and engineering services specialized in research, development, production of transformer and high voltage & low voltage electrical power equipment
Our Transmission and distribution companies can provide with whole solution for transformer substation and switch substation trunkey project!
The rated voltage from 11kV up to 132kV.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in power substation, power plant project and electrical power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products. Turnkey substation from 11KV to 132KV.
Our transformer factory main working is visiting end user's site do measure and reseach before designe, and providing economic transformer solution for customer. Engineering, manufacturing, executing, commissioning and repairing for different kind of transformer (04kv -500kv ).
The products are mainly used in Steel plant; Power - Fossil fuel plant, Nuclear power plant, Railway, Subway and Airport. Wind power generation; Hydroelectric plant engineering; International power generation plant; Power substation transmission and distribution; Residential housing estate power distribution system and so on.
Transformer factory Product includes:
Three phase double (three)- winding power transformer, generator power transformer, auto power transformer, rectifier transformer for each industry, furnace transformer, movable transformer, traction transformer and reactor, power plant auxiliary and standby transformers, transformers for substations of backbone and distribution networks. Transformer for metallurgical companies etc.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide transformer supplier"
Supply the guide drawings and installation manuals information directions on the method of handling, storage, mounting and erection of transformers.
Power equipment application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier
