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Gas-insulated AC test transfromer

Gas-insulated AC test transfromer

The system is used to do AC voltage test and PD measurement on electric apparatus such as combined electric apparatus, insulation products, circuit breakers, isolating switches, instrument transformers, capacitors, etc. It is suitable to operate in high voltage lab or distribution stations site. Electromagnetic induction is taken use of to generate high voltage output.

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  • Application

    Thesystem is used to do AC voltage test and PD measurement on electric apparatussuch as combined electric apparatus, insulation products, circuit breakers,isolating switches, instrument transformers, capacitors, etc. It is suitable tooperate in high voltage lab or distribution stations site. Electromagneticinduction is taken use of to generate high voltage output.

    Features

    l  low PD: pd<3pC under 80% ratedvoltage

    l  low investment: totallyenclosed structure, thus no shielding room is need and the whole capitalinvestment can be low.

    l  Small space occupation:generally 1/3 space occupation of AC test system oil-filled type

    l  Good insulation performance:insulated by SF6, with relatively high safety factor. The system runs reliablyand safe.

    l  High efficiency: output viabushings or metal enclosure, able to test on multiple units or multiple phasesat the same time.

    l  Highly intelligent: auto,semi-auto, and manual test mode; automatic generate test report


    Technical parameters

    Model

    GTU-kVA /kV

    Rated  output voltage, kV

    150

    300

    550

    600

    800

    1000

    1200

    Rated  output current, A

    ≤10

    ≤8

    ≤4

    ≤4

    ≤3

    ≤2

    ≤2

    Input  voltage, kV

    0.38/3/6/10

    Short  time insulation level, kV

    165

    330

    605

    660

    880

    1100

    1250

    Rated  frequency, Hz

    50

    PD,  pC

    ≤3pC at 80% Un

    Annual  SF6 leakage

    ≤0.2%

    Duty  cycle

    continuous running for 15/30/60min at  rated voltage and current

    Weight,  kg

    600

    800

    2500

    2800

    7200

    8500

    12000

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