The single phase padmounted distribution transformer is designed to provide electrical service on underground distribution systems. The tra n s fo rmer is designed for outdoor m o u n t i n g on a pad. Primary and secondary cables enter the t ra n s fo rmer compartment from below, through openings in the pad. All exposed live parts are completely enclosed in tamper-resistant cabinets with provisions for padlocking.
The document provides comprehensive instructions for the ABB 1LUJ000001-BLE single-phase padmounted distribution transformer. It details safety precautions, receiving procedures, and external inspections required before operation.
Key operational guidance includes internal tank inspection protocols, storage requirements to prevent moisture ingress, and specific steps for opening and closing composite enclosures using socket wrenches and padlocks.
Voltage must not be applied until the oil reaches the 25° C level.
The space above the oil must be pressurized with dry air to two (2) to three (3) psi.