Partial Discharge Testing

PDS 100 Partial Discharge Surveyor

The Doble PDS100 Partial Discharge Surveyor is a radio frequency interference (RFI) surveying tool that is designed for partial discharge measurement in a live substation.

Without the need for outages, the PDS100 can detect partial discharge (PD) in just a few seconds – making it an ideal tool for a condition based maintenance program.

Whole substations can be quickly surveyed and analyzed by simply walking around HV apparatus and using the PDS100 to detect and identify sources of PD and external interference.

PDS 200 PD Surveyor with EMI Capabilities

The PDS200 Surveyor is a partial discharge surveyor tool with EMI capabilities. It identifies and analyzes radio frequency (RFI) and lower frequency electromagnetic (EMI) emissions. These are associated with faulty or degraded insulation and other system defects.

The PDS200 uses EMI analysis to discriminate between different defects and discharge sources in transformers, cable terminations, high-voltage substation and plant equipment.

Use the PDS200 to quickly make a system wide survey.
The PDS200 connects with a variety of sensors for various applications. It can be purchased on its own or as part of a packaged kit, such as the EMI Surveyor.

DFA 300 RFI & Acoustic Signal Surveyor

Use the Doble DFA300 to identify and locate insulation defects.
This surveying tool combines radio frequency interference (RFI) and acoustic emission (AE).

The DFA300 partial discharge detector can locate partial discharge (PD) in a few seconds.

Designed for surveying live, high voltage apparatus, its versatility makes it the perfect, multi-purpose tool for condition-based maintenance programs.

Registered Office

114 , 24 – B Raja Bahadur Mansion 2,
Ambalal Doshi Marg, Fort,
Mumbai 400023, Maharashtra

Corporate Office

201,2nd Floor, Sahayog Complex,
Near Delux Crossroads, Nizampura,
Vadodara 390002, Gujarat


Tel: 0265 – 2575343-350