| Prod Model: |
LVQB(T) -500W3 |
| Application: |
Audio |
| Phase: |
Single |
| Coil: |
Core-type Transformer |
| Cooling Method: |
Dry-type Transformer |
| Winding Type: |
Separated Winding Transformer |
| Brand: |
Ville |
Product Description
LVQB Series Oil Immersed Inverted Current Transformers
LVQB series current transformer has an inverted structure with SF6 gas insulation (Please see the figure). It is connected in series with electric energy measurement, measuring, and relay protection functions.
Primary coil has a through-type conducting rod structure with good dynamic and thermal stability; its maximum thermalcurrent can be up to 63kA/3s (when primary coil is connected in series).
Primary coil passes through the center of secondary coil without flux leakage. Measurement precision can be up to 0.1 and 0.2S grades.
Secondary coil is fixed in an aluminum shielded-case by casting organic materials; measurement and protection circuits cannot be damaged by insulation breakdown.
Optimal Electrode shielded structure improves internal and external field distribution of the product. It has an excellent insulation property. Partial discharge test is carried out under power frequency test voltage.
There are two types of external insulation bushing for customers: they have excellent explosion-resistant and shockresistant behaviors.
External bushing uses silicon rubber umbrella type apron reinforced by glass fiber. Optimal external surface field makes silicon rubber avoid electrical erosion.
Porcelain bushing shell with high-strength.
Secondary outlet box is a complete structure by casting the aluminum alloy; its sealing structure meets the requirement of IP55, which is dust proof, water proof and air permeable; secondary terminal for wiring uses Phoenix special terminal; it is more convenient for operations such as plug-in, pull-out and wiring etc.
Seal ring is made of imported fluorocarbon silicone rubber, it is suitable for using in the area where there is great temperature change or the environmental temperature is extreme. The leakage rate per year is less than 0.5%.
Product performance keeps changeless after severe transporting test.
Use an aluminum alloy cast case, all components including the base, connection box, stainless steel expander, and nameplate etc do not rust forever.
A density meter is installed on the base, this meter can show the gas pressure and density in the transformer (The show value is turned to be the internal gas pressure at 20 automatically). A signal for refilling gas is sent out when the pressure in the transformer drops down to the alarm pressure.
Technical Parameters of LVQB(T)-330/500
Note: 1 The Company reserves the right to change the parameters in the table.
2 When the parameters required by the customer are different from that in the table, they can be negotiated according to the requirement of the customer.
3 There are several current ratios for one-time switch of the transformer.
4 We also can provide with products which meet the requirement of IEC and ANSI.
Outline and Dimensional Drawing
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"
