Medium Voltage & Transformer System

I. Medium Voltage System.

Medium Voltage System is electricity lines having Voltage from 1kV to 35kV: using insulated wire, uninsulated wire supported by ceramic insulators. Spin-cast concrete pole with height 9-12m, using insulators as post insulator or string insulator.

Vincom Megamall Thao Dien - one of projects, BSe supplying and installation of medium voltage system.

II. Transformers

Currently, transformer using popularly in our daily living, especially where locating big substations providing electricity to certain living area. Therefore, transformer is a equipment very importance and necessary.

Transformer is?

Transformer is a electrical device consist of 1 or 2 or many circuits having input and output in the same magnetic field. Constructing of basic transformer consist of 2 or many coils of wire winding to ferit core. General Constructing of transformer having main components as: iron core, winding wire, and casing.

-          Iron core: consist of  pillar and gong. Pillar is component locating winding, while gong is component connecting amongst pillar for created closed magnetic circuit. Iron core being constructed by thin sheets of iron joined insulated, and manufactured from magnetic-conducting materials.

-          Winding wire: manufacturing by Cu or Al and insulated cover. Duty of winding wire are receiving energy in and transferring energy out. Winding wire receiving energy in (connecting to AC) being called as primary winding wire (symbol: N1), while winding wire transferring energy out (connecting to consumes) being called as secondary winding wire (symbol: N2). Number of turns of 2 winding wires are to different, depending on duty of machine, then number of turns of winding wires differently.

Casing: depending on every type, then manufacturing from resin, wood, steel, cast iron, or thin steel sheet, having function as protection components inside of machine, casing consist of: cap of casing, and casing. Cap for covering in top of casing. Above it having some component as: ceramic output of winding wires of medium voltage and low voltage, conservator tank (auxiliary tank) and upper pipe.

Constructing principle of Transformer

Use of transformer

Transformer using for changing AC voltage or booster or lower voltage, and having very importance role in electricity power transmission.

Apart from that, transformer with 3 winding wires, beside primary and secondary, having the 3^rd winding wire with medium voltage. Transformer altering system of single-phase AC being called as single-phase transformer; Transformer altering system of three-phase AC being called as three-phase transformer; Transformer soaked in oil being called as Oil transformer; Transformer no soaked in oil being called as Dry transformer; Transformer having 3 pillars in same surface being called as transformer plane surface; Transformer having 3 pillars in space being called as transformer spatial.

Transformer can changing voltages to prefer figures, e.g. from medium voltage line 10kV to low voltage 230V or 400V using at house. In Power Plant, transformer changing medium voltage from generators (10kV to 50kV) to high voltage (110kV to 500kV or higher) for high voltage line. In electricity power transmission, voltage higher losses lower.

Apart from that, transformer using popularly in welding technique, equipment in furnace, in technique of radio, in measurement field, in automatics equipment, as sources for equipment of electric, electronics, family living,…

In production and living, electricity is very importance, assisting us living in convenience, but using electricity properly and economy, we are to using transformer adjusting electricity lines as preferred.

Based on 20 years experiences, BSe being selected by reputation clients, becoming believable partner of local and international enterprises. BSe supplied and installed medium system, synchronizing for hundreds of big projects, from North to South, resulted of BSe works are successes of customers’ partners.