ZSP Station Class

The type “ZSP” Station Class arresters offer the benefits of polymer housings for system voltages up to 198 kV. The arresters are approximately 25% the weight of the porcelain equivalent. Handling and installation become much easier tasks. The risk of damage to the housing is reduced compared to porcelain.

Features:

• The design consists of a number of metal oxide valve elements contained within a fibreglass winding and then inserted into the polymer housing
• ZSP arresters are shipped as single units for all ratings: 3 kV through 198 kV
• There is no need to combine sections, even for the 198 kV duty cycle rating
• The metal oxide valve elements combine excellent protective characteristics with steady state performance to maximise protection over many years of service

Performance

• ZSP are available in duty cycle ratings of 3 kV through 198 kV (2.55 kV through 158 kV MCOV) and are designed for system line to line voltages of 2.4 through 230 kV
• The arrester designs are tested in accordance with the latest industry standards for metal oxide arresters
• The “ZSP” arresters consistently withstand the following minimum design tests.
• High Current-Short Duration: 100 kA crest
• Transmission Line Discharge: Exceeds ANSI/IEEE and IEC class 2 standard requirements
• Nominal discharge current per IEC: 10 kA
• Line Discharge Class per IEC: Class 2 Minimum
• Energy Capability: 6.1 kJ/kV
• MCOV Fault Withstand Capability: 80kA rms sym
• Working cantilever strength:10,000 in. -lbs. REA Listed 
• Other voltages available and different configurations available