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Home >>CTSS Products >>Power Transmission >>Oil-immersed transformer(OIT)

500kV Single-phase Oil-immersed Convert Transformer

500kV Single-phase Oil-immersed Convert Transformer Product Details

General:

Converter transformers are one of the major components in a converter station to connect the convert bridge withAC sys tem and providingone ungrounding natural point three phase convert voltage. Converter transformers are the next significant component parts in a converterstation. The key elements to consider are weights, electrical losses, availability and costs.Converter transformer's main task is to link the ACgrid with the converter valves.CTSS digests and absorbs the advanced manufacture technology of the world, accordingly develops on its own hands 500kV transformers on the basis ofCTSS own experiences and advantages.

Standards:

IEC-76 .1-1993 Power Transformers: general IEC-61378: convertor transformer IEC-60076-3: 2000 Power Transformers Insulation levels, dielectric tests and external clearances in air

IEC60076-4-2002 Power Transformers part4 guide to the lighting impulse and switching impulse testing-power transformers and reactors

IEC-60076-5:2000 Power Transformers ability to withstand short circuitJ B/T3837-1996 Approaches for Editing Type of Transformer GB1094.1.2-1996 Manufacturing Standard of Power Transformer GB1094.3.5-2003 Manufacturing Standard of Power Transformer GB/T 6451-2008 Technical Parameters and Requirements of the Three-phase Oil-immersed Power TransformerTechniques

Design:

Electromagnetic calculations: Adopt most advanced design software, SolidWorks three-dimensional software and to guarantees allperformance indexes

Strength analysis: COMOS software Leakage magnetic distribution and its electro-dynamic force: leakage magnetic field analyzing software Electrical insulation: Power frequency electrical field calculating software and lightning over-voltage winding potential distribution calculating

software for calculating of gradient distribution of main insulation, longitudinal insulation and impulse voltage in the windings as well as thatof winding terminals.

Manufacture:

Core: effectively upgrade transformers no-load performance by below methods:

Adopt high-quality imported silicon steels

Three phase five limb drawing plate structure

Five-step of laminated, fully mitered, with the technique of none-pile on upper yoke

Meanwhile, appropriate magnetic flux density and the auto-oscillation frequency of cores are selected for lowering transformers soundlevel.

Winding:

Optimize winding transposing to effectively reduce load losses and eddy current losses as well.

Zigzag oil conduit structure to lower average temperature rise and the hot-spot temperature rise and thereby extend transformers servicelife.

Core structural parts: decrease the stray losses by lowering eddy current losses, drawing plates of core or minimizing slots on the basis ofthe location of core structural parts.

Transformer tank: combining magnetic blocking and copper blocking methods to reduce the stray losses.Features of products:

Low loss Low noise No hauling With innovation in safety Reliability assured

Low maintenance Fully tested and certified Suits local conditions Cost effective Easy operationBrief specification:

Voltage class: 500kV or 550kV

CTSS always commits itself to be the No. 1 among all top Ultra-voltage oil-immersed power transformer, HV power transformer and Special power & distribution power transformer suppliers in China.

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kV Single-phase Oil-immersed Convert Transformer http://www.china-power-transformer.com/500kV-Single-phase-Oil-im...

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7/28/2019 500kV Single-Phase Oil-Immersed Convert Transformer

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Capacity: 100000334000kVA

Short circuit impedance: 14% No load current: 0.15~0.25%

Losses: no-load losses is strictly comply with IEC standard requirementsTypical specification:

Model: 730000-500kV Rated voltage:500kV Rated Capacity:730000kVA Type:Three Phases, OLTC, Power Transformer

App lication: 500kV power system of power plant, substation, mining enterprise and etc.

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China Transpowers Electric Co., Limited. Tel: (+)86 574 8300 8192 Fax: (+)86 574 8300 8193 Mobile:+86 186 5826 3190 E-mail: sales@china-power-transformer.com

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kV Single-phase Oil-immersed Convert Transformer http://www.china-power-transformer.com/500kV-Single-phase-Oil-im...

2 05/05/2013 12:53