Uninterruptible Primary Power Delivery for Spot Networks
Trayer Engineering’s PNP Series of primary network protection for spot networks is designed to assure cost-effective and reliable service to critical and sensitive loads requiring uninterruptible primary power delivery.
The self-contained PNP switchgear provides simultaneous connection of the load from two independent feeders. Should a fault be detected on either of the feeds, a vacuum fault interrupter (VFI) disconnects the spot network from the fault while seamlessly providing uninterrupted primary power to the load. When the fault condition is cleared, the unit automatically reverts to its dual-feed operation.
PNP Series units are offered with 5kV, 15kV and 25kV ratings in both padmount and submersible configurations. All feature Trayer’s signature welded 304 grade stainless steel, storm-hardened construction and SEL grid protection relay controls.