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Preview GB/T 20833.4-2021 9.3.2021
GB/T 20833.4-2021

Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization index

Standard published on 9.3.2021

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electronic design (pdf) (772.80 USD)


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772.80 USD


in 4 working days
Preview GB/Z 20833.5-2023 7.9.2023
GB/Z 20833.5-2023

Rotating electrical machines—The winding insulation—Part 5Off-line measurement of partial discharge inception voltage under repetitive impulse voltage

Standard published on 7.9.2023

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electronic design (pdf) (934.80 USD)


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934.80 USD


in 6 working days
Preview GB/T 20834-2024 29.9.2024
GB/T 20834-2024

Technical requirements for motor-generator

Standard published on 29.9.2024

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electronic design (pdf) (330.00 USD)


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330.00 USD


IN STOCK
Preview GB/T 20835-2024 23.8.2024
GB/T 20835-2024

Guide for magnetization test of generator stator core

Standard published on 23.8.2024

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electronic design (pdf) (478.80 USD)


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478.80 USD


in 4 working days
Preview GB/T 20836-2007 16.1.2007
GB/T 20836-2007

Oil-immersed smoothing reactors for HVDC applications

Standard published on 16.1.2007

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electronic design (pdf) (466.80 USD)


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466.80 USD


in 3 working days
Preview GB/T 20837-2007 16.1.2007
GB/T 20837-2007

Specification and technical requirements of oil-immersed smoothing reactors for HVDC applications

Standard published on 16.1.2007

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electronic design (pdf) (346.80 USD)


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346.80 USD


in 3 working days
Preview GB/T 20838-2007 16.1.2007
GB/T 20838-2007

Specification and technical requirements of oil-immersed convertor transformers for HVDC applications

Standard published on 16.1.2007

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electronic design (pdf) (382.80 USD)


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382.80 USD


in 3 working days
Preview GB/T 20839-2025 31.12.2025
GB/T 20839-2025

Intelligent transport systems—General terminology

Standard published on 31.12.2025

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electronic design (pdf) (646.80 USD)


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646.80 USD


in 5 working days
Preview GB/T 20839.2-2007 1.1.2007
GB/T 20839.2-2007

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Standard published on 1.1.2007

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electronic design (pdf) (ON REQUEST)


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ON REQUEST


Out of stock
Preview GB/T 20840.1-2010 2.9.2010
GB/T 20840.1-2010

Instrument transformers—Part 1:General requirements

Standard published on 2.9.2010

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electronic design (pdf) (ON REQUEST)


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ON REQUEST


Out of stock

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