The AVO (now part of Megger) 25 kV DC Dielectric Test Set / Hipot (often associated with specific legacy, regional, or probe designations like HVP-1025-C) is a highly reliable, portable high-voltage diagnostic instrument. Designed for heavy-duty field and industrial use, it is engineered to evaluate the insulation integrity of medium-voltage electrical apparatus to ensure safe operation.

Here are the key features of the equipment:

• Variable Output: Delivers a continuously adjustable DC test voltage from 0 up to 25 kV, enabling precise control for step-voltage, proof, and maintenance testing.

• Precision Metering: Features accurate, multi-range voltage (kV) and leakage current (µA/mA) meters to monitor insulation performance and detect potential weaknesses under high-voltage stress.

• Robust Safety Systems: Incorporates critical safety mechanisms, including a zero-start interlock (ensuring the voltage dial is set to zero before activation), overcurrent protection, and an internal discharge circuit to safely ground capacitive loads after testing.

• Durable Enclosure: Housed in a rugged, impact-resistant case specifically built to withstand the physical demands, vibrations, and harsh conditions of on-site testing in substations and industrial plants.

• Primary Applications: Ideal for performing dielectric withstand tests and insulation resistance measurements on medium-voltage power cables, switchgear, transformers, insulators, and rotating machinery.