ZGW23A-515 HV DC Disconnector
Product Characteristics
ZGW23A-515 HV DC disconnector, is characterized by double columns, single break and folding clamp and shown in a horizontal structure, which is used for outdoor operation. It is mainly used for changing over the HV line in the power supply system with ±515kV (or substituting±408kV) 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.
Product Parameters


No.

Name

Unit

Value

1

Rated voltage

kV

±515

2

Rated current

Adc

6930

3

Rated short-time withstand current

kA

63

Rated peak withstand current

kA

170

Rated duration of short-circuit

s

3

4

Rated DC withstand voltage, 60min

kV

905

5

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

kV

1715

6

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

kV

1390