transformer technology seminar pilot projects - 400kv ... · pilot projects - 400kv ester...

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Transformer Technology SeminarPilot projects - 400kV EsterTransformers

Pomona CA, May 24-25, 2016

Siemens AG – Transformers

© Siemens AG 2016 All rights reserved.

Benefit of Siemens TechnologyAlternative Insulating Liquids

First 420 kV/300 MVA naturalester filled unit in the world

Ratio: 405 +/- 11% /115 / 22 kV

Insulation liquid: Natural esterDesigninsulation level:AC inducedLightningimpulseSwitchingimpulse

630 kV1425 kV1050 kV

OLTC: MR VRC

Total weight: 400 tons

Reference - Natural Ester


Needs of specific projects:Ester filled unit with ester/water coolers & noise limits


School

Substation

ResidentialDevelopment

TunnelHeadHouse

400 kVUnit

Fire safe

Silent

Heatrecovery


240MVA 400/132/13kV Autotransformers

Siemens Transformer Technology SeminarEster fluid filled unit with ester/water coolers


Siemens Transformer Technology SeminarNew Project - Ester/water coolers with heat reclaimand heat exchangers



First 400 kV/240 MVA unit in the worldwith synthetic ester

Ratio:240 MVA 400/132/13 kV

Autotransformer400 / 132+10x1,5%/-4x1,25% / 13 kV

Insulation liquid: Synthetic ester

Design insulation level:AC inducedLightning impulseSwitching impulse

´462 kV1425 kV1050 kV

OLTC: MR VRC

Total weight:Liquid mass total:

≈ 230 tons≈ 70 tons

Reference – Synthetic Ester



First synthetic ester unitwith 1550 kV lightning impulse level*

Ratio: 120/60/60 MVA 433√3/16,8/16,8 kVGSU

Insulation liquid: Synthetic ester

Design insulation level:AC inducedLightning impulseSwitching impulse

420 kV1550 kV1175 kV

Total weight:Liquid mass total:

≈ 140 tons≈ 35 tons

*BIL used typically for 550 kV units

Reference – Synthetic Ester


Siemens design knowledge


• with ester,

• low noise

• and heat recoverysystems



Transformers needlot of space and

protection measures

Needs of specific projects: To safe space or to eliminate bus duct lengthsà Ester filled unit within buildings

Ester-Transformer

Caverns

Sky-scrapers



Needs of specific projects: Future substation design in citiesà The ideal application of ester filled units


Siemens AG - TransformersContact

Martin StösslHead – Global Technology CentreE T TR LPT GTC

Elingasse 38160 WeizAustria

Phone: +43 (51707) 71417Mobile: +43 (664) 80117 71417

E-mail:[email protected]

siemens.com/transformers

mailto:[email protected]

transformer technology seminar pilot projects - 400kv ... · pilot projects - 400kv ester...

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