Partial Discharge Test

Partial Discharge (PD) Testing detects microscopic insulation defects that can lead to major electrical failures over time. It helps assess the condition of high-voltage equipment like transformers, switchgear, cables, and GIS by identifying early signs of degradation. This non-destructive test enhances reliability and reduces unplanned outages.

Insulation Health Diagnosis

Identifies internal defects such as voids, cracks, and contamination in insulation systems.

Applicable to Critical HV Assets

Ideal for transformers, cable joints, switchgear, bushings, and gas-insulated systems (GIS).

Early Fault Detection

Captures high-frequency discharge signals before they escalate into critical breakdowns.

IEC-Compliant Testing & Analysis

Follows IEC 60270 standards with detailed analysis, risk assessment, and maintenance recommendations.

End-to-End Partial Discharge Testing Process

Detecting Insulation Faults Early

Site Inspection & Test Setup

Assess the asset and connect PD sensors (capacitive, HFCT, or UHF) based on equipment type.

Step 01

Data Acquisition

Record high-frequency discharge activity under operating or test voltage conditions.

Step 02

Signal Analysis

Evaluate discharge patterns, severity, and location using advanced PD analysis software.

Step 03

Reporting & Maintenance Strategy

Provide a comprehensive PD report with diagnostics, condition rating, and preventive action plan.

Step 04

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