Introduction

The TVPA 400 Acoustic Camera is a compact, lightweight multi‑function inspection tool designed for effortless portability and long on‑site operation. It combines infrared thermal imaging, transient ground voltage detection, ultrasonic partial discharge detection, and acoustic imaging in one device, eliminating the need to carry multiple instruments. Technicians can switch between detection modes instantly, enabling fast, multi‑dimensional analysis of thermal defects, airborne ultrasonic anomalies, and open‑point discharges.

Despite its small form factor, the TVPA 400 delivers high‑definition imaging with stable accuracy, maintaining temperature measurement within ±2°C or ±2% even under fluctuating ambient conditions. Built for substations, distribution networks, and high‑voltage O&M work, it provides true “one‑machine full‑field inspection” performance while remaining easy to carry, easy to operate, and ideal for long‑duration field use.

Key Features

• Microphone array: 136

• Multi-functional

• Multidimensional detection

• Lightweight and portable

• Unified Analysis and Management Platform