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    Oil Filled Immersed Insustrial Inductive Voltage Transformer VT IVT PT Manufacturer factory price ISO9001 Inductive Voltage Transformers

    PRODUCT INTRODUCTION

    Oil Immersed Inductive Voltage Transformer shall be suitable for measurement control and relay protection in the outdoor AC power system of nominal voltage 40.5~252kV, and frequency of 50 or 60Hz.

    PRODUCT DETAILS

    Inductive instrument transformer of JDX series shall be suitable for measurement control and relay protection in the outdoor AC power system of nominal voltage 40.5~252kV, and frequency of 50 or 60Hz, this type voltage transformers are oil immersed electromagnetic voltage transformer. The core was used cold-rolled silicon steel strip to folded single-column and three pairs of the same potential with the ground. High voltage coil main insulation chose sheet paper, small oil clearance and large structures. It was wounded as pagoda-shaped segments. High-voltage leads were insulated by a condenser bushing. We select corrugated metal expander as oil temperature variation compensator and can inspect the oil level through window. Fuel tank and the lower tank welded together, and all the other seals are made of sealed limit, effectively preventing the leakage of oil. Outline dimensions drawing and structure shown in Figure 1.

    Sihui Low Voltage to High Voltage Transformers

    一、Service Conditions

    a. Ambient air temperature: maximum +40℃, minimum -45℃, average value of the ambient air temperature does not exceed 30℃ measured during a period of 24h.

    b. Altitude: The altitude does not exceed 1000m (this is the routine requirement, if there is any different requirement, we can provide the products with 2000m, 3000m, 4000m or 5000m altitude according to the clients’ requriments).

    c. The average value of the relative humidity does not exceed 95% at 25℃ measured during a period of one month.

    d. The maximum wind speed does not exceed 34m/s.

    e. Eerthquake intensity does not exceed 8 degree.

    f. There have to be no gas that may seriously affect the insulation and conductive ability of electric equipments, steam, ash, salt, chemical deposit, pollution and corrosive or explosive material.

    二、Main Technical Parameters

    1. Rated frequency: 50Hz or 60Hz
    2. Rated primary voltage:66/3, 110/3, 132/3, 150/3 kV
    3. Secondary voltage for metering:100/3, 110/3, 120/3, 150/3V                      
    4. Secondary voltage for protection: 100/3, 110/3, 120/3, 150/3V
    5. Residual winding voltage: 100,110,120,150 V
    6. Accuracy class for metering: 0.2,0.5
    7. Accuracy class for protction: 3P,6P
    8. Accuracy class for residual winding: 3P,6P
    9. Rated output for metering: 50,100,150,200 VA
    10. Rated output for protaction: 50,100,150,200 VA
    11. Rated output for residual winding: 100,200,300 VA
    12. Thermal limited burden: 1000VA
    13. Ambient air temperature: -45 ℃~+40 ℃
    14. Altitude: 1000m, if need to design exceed 1000m, please declare in the order.

    Note:System earthing conditions: Non-effectively earthed neutral system and effectively earthed neutral system.

    三、Arcing distance and creepage distance of outer insulation please see table 1.

    Rated voltage

    (kV)

    Arcing distance

    (mm)

    Creepage Distance (mm)

    Pollution Level Ⅱ (W1)

    Pollution Level Ⅲ (W2)

    Pollution Level (W3)

    35

    ≥410

    ≥810

    ≥1013

    ≥1256

    66

    ≥720

    ≥1450

    ≥1813

    ≥2248

    110

    ≥1010

    ≥2520

    ≥3150

    ≥3906

    132

    ≥1160

    2900

    3625

    4495

    150

    ≥1350

    3400

    4250

    5270

    220

    ≥2010

    5040

    6300

    7812

    四、Insulation requirements for the primaries please see table 2.

    Rated voltage (kV)

    35

    66

    110

    132

    150

    220

    Power-frequency withstand voltage (r.m.s)   (kV)

    95

    140

    230

    275

    325

    460

    The wet   test for the current transformer of power-frequency withstand (r.m.s) (kV)

    95

    140

    230

    275

    325

    460

    Rated   lightning impulse withstand voltage (peak) (kV)

    200

    325

    550

    650

    750

    1050

    Chopped   ligtning impulse voltage (peak) (kV)

    230

    373

    635

    750

    865

    1208

    Partial discharge level

    Prestressing performed voltage (r.m.s) (kV)

    76

    112

    184

    220

    260

    368

    Test   voltage 1.2Um or Um (kV) PD≤10pC

    49

    87

    126

    145

    170

    252

    Test   voltage 1.2Um/ (kV) PD≤5pC

    28

    50

    87

    100.5

    118

    175

    五、Mechanical requirements for the primary terminals please see table 3.

    Rated voltage (kV)

    35

    66

    110

    132

    150

    220

    Mechanical requirements (horizontal of two   directions and vertical) (N)

    Load

    500

    1000

    1000

    1000

    1000

    Applied   to the primary terminals with duration (s)

    60

    60

    60

    60

    60

    六、Dimensions Of The Inductive Voltage Transformer

    1.The outline and installation dimensions please see drawing 1.

     

    The demonstration of the voltage transformer

    2. The dimensions of the primary termanils please see table 4.

    Rated Voltage

    kV

    H1

    mm

    H2

    mm

    A

    mm

    B

    mm

    C

    mm

    D

    mm

    35

    1340

    410

    550

    700

    450

    20

    66

    1720

    720

    550

    700

    450

    20

    110

    2090

    1010

    670

    710

    450

    20

    132

    2240

    1160

    670

    710

    450

    20

    150

    2430

    1350

    670

    710

    450

    20

    220

    3860

    2010

    680

    900

    600

    24

    Notes: There may be any change of the dimensions for the inductive voltage transformer because of renewing, the clients must basis on the updated drawings.

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