Partial Discharge Testing Service

Advanced Condition Assessment for High Voltage Assets Based on IEC 60270

We are a specialized electrical testing and diagnostics service provider offering advanced Partial Discharge (PD) testing, analysis, and monitoring services. Using both conventional and non-conventional methods, our services are designed to detect and evaluate insulation defects in high-voltage equipment before failure occurs—enhancing safety, reliability, and asset longevity. Our methodologies comply with IEC 60270, the global standard for PD measurement.

Why Partial Discharge Testing Matters

Partial Discharges are early indicators of insulation deterioration. If undetected, they can lead to catastrophic equipment failures. PD diagnostics enables asset managers to implement predictive maintenance strategies and avoid costly outages.

Scope of Services (Based on IEC 60270)

Equipment We Test

Underground Power Cables (MV/HV)

Power Transformers

Rotating Machines (Motors and Generators)

Gas-Insulated Switchgear (GIS)

Switchboards and Busducts

Terminations and Joints

Testing & Monitoring Services

We offer both offline (factory/site) and online (in-service) testing solutions:

1. Conventional PD Testing (per IEC 60270):

PD detection using coupling capacitors

Pulse analysis and time-of-flight location

Calibration using PD calibrators

Noise suppression techniques and filtering

Phase-resolved PD pattern (PRPD) analysis

2. Unconventional PD Testing:

UHF (Ultra High Frequency) detection

HFCT (High Frequency Current Transformers) on grounding systems

Acoustic emission method (AE sensors)

TEV (Transient Earth Voltage) detection

VHF/UHF sensors for GIS and metal-clad equipment

3. Online PD Monitoring Solutions:

Continuous PD monitoring systems for critical assets

IoT/Cloud-based PD monitoring integration

PD alarm thresholds and trend tracking

Remote diagnostics and early warning systems

Reporting & Analysis

Each PD test is accompanied by a comprehensive report that includes:

PD inception and extinction voltage levels

PD pulse magnitudes and locations

PRPD and waveform analysis

Severity assessment and benchmarking

Actionable maintenance recommendations

Industries We Serve

Power Utilities

Oil & Gas

Industrial Plants

Renewable Energy

Infrastructure & Transportation

EPC & Engineering Firms