Product Description

It is safe, non-pollute, and flame proof which can be installed directly on the load centre with the merits of free maintenance, easy installation, low combined operation cost, low loss and excellent humidity resistance.
Technical Specifications
1. Voltage class: 6~35kV
2. Model of voltage regulation: Off-excitation or on-load tap changer
3. Tapping range: 5%, 2x2.5%,
4. Power Capacity: 30-4000kVA
5. Frequency: 50Hz or 60HZ
6. Phase No.: Single phase or three phases
7. Vector Group: Yyn0 or Dyn11 or according to customers' requirements
8. Impedance voltage: 4~9% or according to customers' requirements
9. Service condition: 100% relative humidity, ambient temperature not more than 40ºC or according to customers' requirements
10. Type of cooling: ONAN or ONAF
11. Guard class: IP00, IP20, IP23
12. Thermo-tolerance class of insulation: F
13. Insulation level: A. For 10kV class: LI75AC35; B. For 35kV class: LI170AC70

Service conditions
The height above the sea level is below 1000m
Ambient temperature:
Highest air temperature +40 degree
Highest daily average air temperature +30 degree
Highest annual average air temperature+20 degree
Lowest outdoor air temperature-25 degree
Scope of application
High-rise buildings, airports, terminals, power plants, transformer stations, residential areas or packages of various sites.

Product Description

SG(C)10 series grade C insulated unsealed coil dry type transformer, which is exploited firstly by our company, is a new kind transformer with the advantages of low loss, high efficiency, safety and environmental protection according to the demand of Chinese power market, the limit of using location and regular over-load of transformer. It combined the techniques of Mora in Germany and dupont in American SG(C) 10 filled the blank of national dry type transformer market and has obtained the national patent already. (patent No: 20042002633.8).

Functional characteristics
1. Good heat emission, big overload capacity. Can work without wind machine for long time under 130 overload, and be full load without compulsive wind cool without capacity descending under IP45 condition
2. Perfect safe and resistance to fire operating can be combusting for long period under 800ºC and without smoke
3. Strong resistance to thermal shock(can be full load immediately at -50ºC)
4. Complete waterproof and airproof
5. No partial discharge
6. Good hydrophobility and good resistance to alkaline cauterization and fundal influence
7. Environmental, low noise, no deleerious gas, easy to decomposition

Service condition
The height above the sea level is below 1000m
Ambient temperature:
Highest air temperature +40ºC
Highest daily average air temperature +30ºC
Highest annual average air temperature+20v
Lowest outdoor air temperature-25ºC

Scope of application
Applies to high fireproofing, load fluctuating, unventilated, incommodious, dirty and moist environment such as power plant field, subway, metallurgy, hospital, high-rise building, shipping centre, crowded resident zone, and the special environment such as petro-land chemical industry, nuclear power station, unclear submarine.

Product Description

SGBH16 Amorphous alloy dry transformer has been developed and made with ripe technology and it possesses excellent performance such as safe, reliable and environment. It can be used in the load centre and suitable for demand and development of modern big cities. It reduces greatly loss of no-load and load loss. It is an advance dry transformer in the world.

It possesses a great many good features such as non-flammable, self extinguishing, wet-proof, no-crack and maintenance-free. It is an idea product used for high-story building. Shopping centre, subway, airport, bus station, factory and power plant. It is especially used for the place where it needs high flame retardant and flamproof.

Product Features
1. Iron core is made of Amorphous alloyed strip core with rectangular cross section and structure of four frame and five pillars. Loss ratio of load reduces by 75% comparing with the common dry transformer.
2. The low voltage coil adopts copper foil winding and high voltage coil uses NOMEX Paper insulation meterials with continuous structure. It has been soaked with class H non-solvent insulation many times through VPI vacuum pressure equipment and cure box. It has high mechanical strength good heat radiation, Strong short circuit capacity and operates safe and reliable.

3. The product uses NOMEX paper insulation system with flame retardant, explosion-proof and no pollution to environment.
4. Low noises, small volume, easy installation and maintenance-free.
5. Low partial discharge, high insulation and long life.
6. Good three-protection capability and no-crack.
7. It can be regained after use and no any pollution.
8. It has strong overload(120%) capability and can operate long time normally.

Service conditions
Ambient temperature:
Highest air temperature +40ºC
Lowest air temperature -5ºC
Hottest monthly average temperature +30ºC
Hottest yearly average temperature +20ºC
The height above the sea level is below 1000m

Scope of application
This product has the merit of low no-load loss, no oil, self burn-out if prohibition is encountered, humidity endurance, anti-crack, no maintenance etc. It may take replace any normal Dry Type Transformer at high building, business centre, subway, airport, bus station, industrial enterprise and power-plant, extremely suit for those site with high inflammable & explosive needs