ZSP Station Class Polymer Arresters

ZSP Station Class Polymer Arresters offer the benefits of polymer housings for system voltages up to 198kV. The arrester designs are tested in accordance with the latest industry standards for metal oxide arresters.

ZSP Station Class Polymer Arresters Features:
The type "ZSP" Station Class arresters offer the benefits of polymer housings for system voltages up to 198kV.
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.

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

ZSP Station Class Polymer Arrester

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

Fault Current Withstand:
The severity of a failure depends on the duration and magnitude of the available fault current conducting through the arrester at the time of the failure. This type of arrester, with its polymer housing, eliminates the potential danger of porcelain fragmentation. The design uses a fiberglass epoxy wrap to relieve the pressure that is present during a failure.

Three Phase Installation Layout:
The holes for mounting are .56 inches (14.2 mm) for 1/2" bolts. The tripod base hs three holes with a 10" bolt circle at 120º. Mounting bolts and washers are not furnished with the arrester.

In addition to the information that is included on the tripod base, a namelate is attached to the casting to provide all of the required arrester details. The catalog number, the rated voltage, the maximum continuous operating voltage, and the pressure relief current rating are shown. The serial number includes information about the time of manufacture.


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