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HOME >> PRODUCT >> Composite Hollow Insulator
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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