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    35kV-1200kV AC Composite Hollow Insulator/±400kV-±1100kV DC Composite Hollow Insulator
    • Description
    • Parameter

    Structure: composed mainly of glass fiber reinforced plastic sleeve, high temperature liquid silicone rubber (LSR) sheds and alloy flange.

    Features:

    1) Made of non-brittle materials with excellent explosion-proof property;

    2) Excellent hydrophobic of LSR will result in almost no maintenance;

    3) Strongly resistant to leakage tracking (4.5 kV) and galvanic corrosion;

    4) Small weight and excellent seismic performance, easy for transportation and installation;

    5) Long service life, stable and reliable quality and short delivery time.

     

     35kV-1200kV AC Composite Hollow Insulator

     

     

    Type

    35

    66

    110

    220

    330

    400

    500

    750

    1100

    1200

    Rated highest voltage (kV)

    40.5

    72

    126

    252

    363

    440

    550

    800

    1100

    1200

    Wet power frequency short-time withstand voltage (kV)

    95

    200

    230

    460

    510

    680

    740

    960

    1200

    1300

    Wet switching impulse withstand voltage (kV)

    /

    /

    /

    /

    950

    1150

    1234

    1550

    1800

    2000

    Full-wave lightning impulse withstand voltage (kV)

    200

    350

    550

    1050

    1175

    1550

    1675

    2100

    2800

    2800

    Creepage distance (mm)

    1260

    2232

    3906

    7812

    10845

    13195

    17050

    26000

    34100

    37600

    Dielectric dissipation factor tgδ

    <0.005

    <0.005

    <0.005

    <0.005

    <0.005

    <0.005

    <0.005

    <0.005

    <0.005

    <0.005

    Partial discharge (pC)

    <5

    <5

    <5

    <5

    <5

    <5

    <5

    <5

    <5

    <5

    Anti-seismic strength

    9

    9

    9

    9

    9

    9

    9

    9

    9

    9

     

    * All dimensions are for reference only; all the products can be designed and produced according to client’s demands.

     

     

    ±400kV-±1100kV  DC Composite Hollow Insulator

     

     

    Type

    ±400kV

    ±500kV

    ±600kV

    ±800kV

    ±1100kV

    Rated highest voltage (kV)

    412

    515

    680

    824

    1100

    Wet power frequency short-time withstand voltage (kV)

    570

    680

    750

    1224

    1300

    DC withstand voltage (60 min)

    680

    780

    1020

    1224

    1700

    Wet switching impulse withstand voltage (kV)

    1175

    1380

    1800

    1800

    2150

    Full-wave lightning impulse withstand voltage (kV)

    1234

    1450

    1950

    2400

    2750

    Partial discharge (pC)

    <5

    <5

    <5

    <5

    <5

    Creepage distance  (mm)

    20600

    24720

    34000

    43200

    62720

    Rated bending load (kN·m)

    32

    43

    57

    108

    122.4

    Ultimate bending load (kN·m)

    ≥80

    ≥108

    ≥142

    ≥270

    ≥550.8

     

    * All products can be designed and produced according to client’s demands. 

     

    Product application:
     
    After the type test of 1100kV hollow insulator was completed in 2007, a series of products were developed according to the requirements of users. The ± 1100kV composite hollow bushing was successfully sold to snivent in early 2013.

        
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