550kN DC suspension porcelain insulator XZP-550 (U550B)

550kN DC suspension porcelain insulator XZP-550 (U550B)

DC disc suspension porcelain insulators are used on HVDC transmission lines to support and insulate conductors. The insulators can be used in heavy polluted area with reasonable shed profile design, the porcelain material has superior characteristics to resist DC ageing, and pins with zinc sleeve can prevent DC electrolytic corrosion. The main E&M performance has reached international advanced level.


The following suspension insulator comply with the IEC standard. The glaze color of the insulator are brown or light gray.


Item No.: XZP-550

Class IEC: U550B

Fig No.: 1


Dimensions:

Norminal Diameter (D): 400mm

Unit Spacing (H): 240mm

Norminal Creepage Distance (L): 700mm

Coupling Size: 32R


Mechanical Values:

Rated M&E Failing Load: 550kN

Routine Tension Load: 275kN

Impact Load: 10N.m


Electrical Values:

D.C. Withstand Voltage Wet: 60kV

D.C. Withstand Voltage Dry: 150kV

Dry Lightning Impulse Withstand Voltage, Positive: 150kV

Dry Lightning Impulse Withstand Voltage, Negative: 160kV

SF6 Puncture Withstand Voltage: 225kV


Packing and Shipping Data:

Net Weight, Approximate: 30.3kg