ZGW8-816/1100 HV DC Disconnector
Product Characteristics
ZGW8-816/1100 HV DC disconnector, is characterized by double columns, single arm and horizontal expansion, which is used for outdoor and shown in a horizontal break structure. It is mainly used for changing over the HV line in case of no load, carrying out the electrical isolation or connection on the repaired HV electrical equipment, such as HV bus, circuit breaker and other and charged HV lines. It can switch the DC filter when used in the HV side of DC filter.
Product Parameters


No.

Name

Unit

ZGW8-816

ZGW8-1100

1

Rated voltage

kV

±816

±1122

2

Rated current

A

6930

7000

3

Rated short-time withstand current

kA

63

63

4

Rated peak withstand current

kA

170

170

5

Rated duration of short-circuit

s

3

3

6

Rated DC withstand voltage, 60min

kV

1360

1880

7

Rated lightning impulse withstand voltage (1.2/50μs, peak value)

kV

2205

2885

8

Rated switching impulse withstand voltage (250/2500μs, peak value)

kV

1790

2375