Power Transformers

Backed up with excellent manufacturing infrastructure, we are indulged in the process of manufacturing and supplying a high-quality H Class Scaled Type Transformer. We use updated technological implementation for manufacturing these classy transformers. The vital advantages of our transformers are Partial discharge, No-load loss, Load loss, Low noise and Operating at humidity circumstance. These transformers are widely used in Residential dense district, Petrochemical, Nuclear power stations and Nuclear powered submarines. 

Advantages:

• Advanced design
• Reasonable structure
• Good aesthetic
• Technical performance index is superior to national standard
• Partial discharge
• No-load loss
• Load loss
• Low noise
• Operating at humidity circumstance

Our transformers are intricately designed and finds wide application regions with special requirements including:

• Dirty, wet surroundings near lake, river, sea, heavy-load region
• Skyscrapers
• Airports
• Railway stations
• Wharfs
• Subway
• Hospital
• Power stations
• Shopping centers
• Residential dense district
• Petrochemical
• Nuclear power stations
• Nuclear powered submarines

Features

• Due to elaborate design for the windings and vacuum pressure immersion treatment, which can ensure SGB 10 transformers minimum partial discharge(¡Ü5pc)£¬ without any chaps and reduction of insulation level during whole service life
• The HV winding is continuous structure. The LV winding is foil structure. Use vacuum pressure immersion and high temperature solidifying treatment and adopt the high strength biphenyl aether material or ceramic as support. So it has well insulation performance and short-circuit withstand ability
• Difficult to flame, flameproof, innocuous, non-pollution, self-extinguishing, fireproofs.
• Even if burning under high temperature, SGB 10 transformers seldom bring any smoke.
• Hermo-tolerance class of insulation: H (180¡æ)
• Insulation layer is very thin and equality, it has extremely over-load ability in short duration, and it is not necessary to force air cooling, it allows 120% over-load for long duration and 140% over-load for 3 hours. Due to anti-aging insulation material with bound, so it can reach full-load at ¡À50¡æ condition

The expert team in our firm allows us to manufacture and supply leading products of Oil Immersed Power Transformers - 110kV. We are backed up with better-quality technologies and advanced machineries to manufacture these products. The remarkable features of these products are strong short-circuit withstand ability, low partial discharge, good aesthetics. This is efficiently used in all substations and also at wind mills in ample range.

Technical Characteristics:

• Low loss: The no-load loss reduced by about 40%, and the load loss reduced by 15%, compares to the actual National Standards GB6451-1999
• Low noise: The noise level achieved below 60dB, dropped by nearly 20dB compares to the National Standards. We can also manufacture transformers (below 55dB) to meet customer’s requirements
• Low partial discharge: The full procedure of 110kV products is completed in a depurated workshop, and the metal components, insulation components of the active part are completely rounded end. The partial discharge is controlled below 100pc
• Strong short-circuit withstand ability: Our company independently designed and made the SF10-160000kVA/110kV transformer, which passed the short-circuit test of China National Transformer Quality Supervision Testing Center
• Good Aesthetic: Corrugated tank, shot blast cleaning, electrostatic powder spraying, wide slice radiator and never-fading
• No leakage: All the sealings are fixed, the rims use two sealing and all the sealing is imported. Seriously promise to be no leakage

Structure and Technical Features:

• Windings

HV winding adopts interleaved-continuous or inside continuous model, which improves the winding vertical capacitance distribution under the impulse voltage. Windings are oil-cycle structure so that they can reduce winding temperature rise. The products¡¯ life is 30 years. The inside of winding has hard supporting and swallow-tail cushion, insulation of the top and the bottom ends are platform pressing plates, makes high mechanical strength and resistance to the sudden short circuit ability. Winding internal insulation parts and active parts of insulation are rounded to reduce partial discharge

• Active part

The active part assembled whole and dried under invariable pressure to ensure symmetrically shrink of windings with less rebound, so effectively improve electrical strength and the short circuit withstand ability.

• Core

The core is made of high quality cold-rolled silicon-steel sheet, without holes, frame structure; the D type yoke structure offers the large area platform. Step-lapping and laminated, cut by step-lap core lamination line from GEORG Co. of Germany in order to guarantee core burr smaller than 20¦Ìm, reduce no-load loss, no-load current and noise level

• Tank

Tanks structures are bell type and barrel type. The plates are curved to corrugated wall. All the sealings are fixed. Metal parts are round horn and go hair. Welding seam and sealed place pass three leakage testing (fluorescence, positive pressure, and negative pressure). The paint is according to the electrical appliances antirust requirements

(iii) Assembly

All components are pre-assembled in the factory, set shipment, and enclosed users service manual.

Technical parameters:

• Technical parameter sheets for SF10 series 110kV three phase double-winding off-load tap changer power transformer
• Technical parameter sheets for S10 series 110kV three phase double-winding off-load tap changer power transformer

 We expertise in offering an unmatched quality range of Oil Immersed Transformer - upto 400kV. These transformer are bear operating characteristics of power networks in urban and rural areas of our country and are fabricated adopting advanced technologies and equipment.

Technical Characteristics

• Low loss: The no-load loss reduced by about 40%, and the load loss reduced by 15%, compares to the actual National Standards GB6451-1999.
• Low noise: The noise level achieved below 60dB, dropped by nearly 20dB compares to the National Standards. We can also manufacture transformers (below 55dB) to meet customer¡¯s requirements.
• Low partial discharge: The full procedure of 220kV products is completed in a depurated workshop, and the metal components, insulation components of the active part are completely rounded end. The partial discharge is controlled below 70pc.
• Strong short-circuit withstand ability: Our company independently designed and manufactured the SFP10-200000/220 transformer, which passed the short-circuit test of China National Transformer Quality Supervision Testing Center.
• Good Aesthetic: Corrugated tank, shot-blast cleaning, electrostatic powder spraying, wide slice radiator and never-fading.
• No leakage: All the sealings are fixed, the rims use two sealing and all the sealing is imported. Seriously promise to be no leakage.

Structure and construction features:

All products should be calculated in electric field, magnetic field, temperature rise and short-circuit electric power force by software in order to guarantee magnetic field and oil flow of winding are distributed symmetrically. It has higher electric insulation performance and short-circuit withstand ability.

• Windings

HV winding adopts interleaved-continuous or inside continuous model, which improves the winding vertical capacitance distribution under the impulse voltage. Windings are oil-cycle structure so that it can reduce winding temperature rise. The products¡¯ life is 30 years. The inside of winding has hard supporting and swallow-tail cushion, insulation of the top and the bottom ends are platform pressing plates, makes high mechanical strength and resistance to the sudden short-circuit ability. Winding internal insulation parts and active part of insulation parts are rounded to reduce partial discharge

• Core

The core is made of high quality cold-rolled silicon-steel sheet, without holes, frame structure , the D type yoke structure offers the large area platform, Step-lapping and laminated, cut by step-lap core lamination line from GEORG Co. of Germany in order to guarantee core burr smaller than 20¦Ìm , reduce no-load loss, no-loaded current and noise level.

• Tank

Tanks structures are bell type and barrel type. The plates are curved to corrugated wall. All the sealings are fixed. Metal parts are round horn and go hair. Welding seam and sealed place pass three leakage testing (fluorescence, positive pressure, and negative pressure). The paint is according to the electrical home appliances antirust requirements. For the large capacity transformer, the tank adopts the magnetic shielding to reduce the stray loss

• Active Part

The active part assembled whole and dried under invariable pressure to ensure symmetrically shrink of windings with less rebound, so effectively improve electrical strength and the short-circuit withstand ability. The active part assembled in the purification workshop, after that put the active part into automatic controlling Kerosene Vapor Drying Plant

Backed up with excellent manufacturing infrastructure, we are indulged in the process of manufacturing and supplying a high-quality H Class Scaled Type Transformer. We use updated technological implementation for manufacturing these classy transformers. The vital advantages of our transformers are Partial discharge, No-load loss, Load loss, Low noise and Operating at humidity circumstance. These transformers are widely used in Residential dense district, Petrochemical, Nuclear power stations and Nuclear powered submarines.
Advantages:

    Advanced design
    Reasonable structure
    Good aesthetic
    Technical performance index is superior to national standard
    Partial discharge
    No-load loss
    Load loss
    Low noise
    Operating at humidity circumstance

The expert team in our firm allows us to manufacture and supply leading products of Oil Immersed Power Transformers - 110kV. We are backed up with better-quality technologies and advanced machineries to manufacture these products. The remarkable features of these products are strong short-circuit withstand ability, low partial discharge, good aesthetics. This is efficiently used in all substations and also at wind mills in ample range.

Technical Characteristics:

    Low loss: The no-load loss reduced by about 40%, and the load loss reduced by 15%, compares to the actual National Standards GB6451-1999
    Low noise: The noise level achieved below 60dB, dropped by nearly 20dB compares to the National Standards. We can also manufacture transformers (below 55dB) to meet customer’s requirements
    Low partial discharge: The full procedure of 110kV products is completed in a depurated workshop, and the metal components, insulation components of the active part are completely rounded end. The partial discharge is controlled below 100pc
    Strong short-circuit withstand ability: Our company independently designed and made the SF10-160000kVA/110kV transformer, which passed the short-circuit test of China National Transformer Quality Supervision Testing Center
    Good Aesthetic: Corrugated tank, shot blast cleaning, electrostatic powder spraying, wide slice radiator and never-fading
    No leakage: All the sealings are fixed, the rims use two sealing and all the sealing is imported. Seriously promise to be no leakage

Technical parameters:

    Technical parameter sheets for SF10 series 110kV three phase double-winding off-load tap changer power transformer
    Technical parameter sheets for S10 series 110kV three phase double-winding off-load tap changer power transformer

The expert team in our firm allows us to manufacture and supply leading products of Oil Immersed Power Transformers - 110kV. We are backed up with better-quality technologies and advanced machineries to manufacture these products. The remarkable features of these products are strong short-circuit withstand ability, low partial discharge, good aesthetics. This is efficiently used in all substations and also at wind mills in ample range.

Technical Characteristics:

    Low loss: The no-load loss reduced by about 40%, and the load loss reduced by 15%, compares to the actual National Standards GB6451-1999
    Low noise: The noise level achieved below 60dB, dropped by nearly 20dB compares to the National Standards. We can also manufacture transformers (below 55dB) to meet customer’s requirements
    Low partial discharge: The full procedure of 110kV products is completed in a depurated workshop, and the metal components, insulation components of the active part are completely rounded end. The partial discharge is controlled below 100pc
    Strong short-circuit withstand ability: Our company independently designed and made the SF10-160000kVA/110kV transformer, which passed the short-circuit test of China National Transformer Quality Supervision Testing Center
    Good Aesthetic: Corrugated tank, shot blast cleaning, electrostatic powder spraying, wide slice radiator and never-fading
    No leakage: All the sealings are fixed, the rims use two sealing and all the sealing is imported. Seriously promise to be no leakage

Technical parameters:

    Technical parameter sheets for SF10 series 110kV three phase double-winding off-load tap changer power transformer
    Technical parameter sheets for S10 series 110kV three phase double-winding off-load tap changer power transformer

Under able guidance of our trained professionals, we manufacture and supply a wide range of Power Transformers. In order to meet the international competition we use high grade raw materials for manufacturing. It is peculiarly designed with low no- load-losses and load-losses facilities. This transformer requires low maintenance and easy to operate. The enhanced life expectancy of this transformer makes to lead the industrial market.
Features :

    Excellence withstand short-circuit capacity
    Low no- load-losses and load-losses
    Low partial discharge
    Low noise
    Enhanced life expectancy


Technical Specification :

    Standard : IEC 60076
    Voltage level : 33,66,110,138,220,400,& 550kv
    Mode of voltage regulator off circuit / on load
    Power Capacity : upto 460 MVA
    Frequency : 50 Hz
    Phase : 1ph, 3ph
    Vector group : Dyn11, YND1, YND11, YNYN0 etc...
    Type of cooling : ONAN / ONAF / OFAF / ODAF etc...
    Insulation level : As per IEC
    Termination : open Bushing / Cable box / Busduct.

Under able guidance of our trained professionals, we manufacture and supply a wide range of Power Transformers. In order to meet the international competition we use high grade raw materials for manufacturing. It is peculiarly designed with low no- load-losses and load-losses facilities. This transformer requires low maintenance and easy to operate. The enhanced life expectancy of this transformer makes to lead the industrial market. 

Features :

• Excellence withstand short-circuit capacity
• Low no- load-losses and load-losses
• Low partial discharge
• Low noise
• Enhanced life expectancy

Technical Specification :

• Standard : IEC 60076
• Voltage level : 33,66,110,138,220,400,& 550kv
• Mode of voltage regulator off circuit / on load
• Power Capacity : upto 460 MVA
• Frequency : 50 Hz
• Phase : 1ph, 3ph
• Vector group : Dyn11, YND1, YND11, YNYN0 etc...
• Type of cooling : ONAN / ONAF / OFAF / ODAF etc...
• Insulation level : As per IEC
• Termination : open Bushing / Cable box / Busduct.