Megger DELTA 4000 Series – 12 kV Insulation Diagnostic System

• Immediate 50/60 Hz and 1 Hz power factor/tan delta assessment.
• Patented ITC for temperature correction from 0 to 50 °C.
• Guided test forms for streamlined asset evaluation.
• Simplified bushing tap connections with quick-disconnect clamps.
• Portable two-piece design: lightweight (14 kg control unit, 22 kg HV unit).
• Accurate measurements in noisy environments like 765 kV substations.
• Measures excitation current, tip-up tests, watts loss, inductance, capacitance.

The Megger DELTA4000 Series delivers reliable insulation diagnostics through automated power frequency and 1 Hz tan delta testing, helping identify degradation in critical HV assets without relying on historical trends. Its ITC technology ensures precise temperature-adjusted results, while the intuitive interface and guided forms simplify workflows for field or lab use. The system’s high noise immunity and compact, rugged build make it ideal for on-site assessments, supporting proactive maintenance to prevent outages. With optional accessories for oil, TTR, and rotating machine testing, the DELTA4000 offers versatility across applications.