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siemens.com/answers© Siemens AG 2016 All rights reserved.
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
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© Siemens AG 2016 All rights reserved.
Needs of specific projects:Ester filled unit with ester/water coolers & noise limits
Benefit of Siemens TechnologyAlternative Insulating Liquids
School
Substation
ResidentialDevelopment
TunnelHeadHouse
400 kVUnit
Fire safe
Silent
Heatrecovery
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© Siemens AG 2016 All rights reserved.Page 4
240MVA 400/132/13kV Autotransformers
Siemens Transformer Technology SeminarEster fluid filled unit with ester/water coolers
© Siemens AG 2016 All rights reserved.Page 5
Siemens Transformer Technology SeminarNew Project - Ester/water coolers with heat reclaimand heat exchangers
© Siemens AG 2016 All rights reserved.
Siemens Transformer Technology SeminarNew Project - Ester/water coolers with heat reclaimand heat exchangers
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© Siemens AG 2016 All rights reserved.
Benefit of Siemens TechnologyAlternative Insulating Liquids
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
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© Siemens AG 2016 All rights reserved.
Benefit of Siemens TechnologyAlternative Insulating Liquids
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
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© Siemens AG 2016 All rights reserved.
Siemens design knowledge
Benefit of Siemens TechnologyAlternative Insulating Liquids
• with ester,
• low noise
• and heat recoverysystems
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© Siemens AG 2016 All rights reserved.
Benefit of Siemens TechnologyAlternative Insulating Liquids
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
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© Siemens AG 2016 All rights reserved.
Benefit of Siemens TechnologyAlternative Insulating Liquids
Needs of specific projects: Future substation design in citiesà The ideal application of ester filled units
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© Siemens AG 2016 All rights reserved.
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]
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