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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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