550kV GIS
Product Characteristics
ZF16-550 is composed of circuit breaker, disconnector, earthing switch, current transformer, voltage transformer, lightning arrester, bus, incoming and outgoing line bushing or cable sealing end enclosed in an earthed metal enclosure, and filled with SF6 in certain pressure as the insulating medium.
Product Parameters

Rated voltage (kV)

550

Rated current (A)

5000/6300

Rated short-circuit breaking current (kA)

63

Rated short-time withstand current/time (kA/s)

63/3

Rated peak withstand current (kA)

171

Rated power frequency withstand voltage (kV)

To earth

740

Across breakers

740+315

Rated lightning impulse withstand voltage (kV)

To earth

1675

Across breakers

1675+450

Rated switching impulse withstand voltage (kV)

To earth

1300

Across breakers

1175+450