• Overview

• By Category
• Circuit Breaker Diagnostics
• Protection Diagnostics
• Continuous On-line Diagnostics
  • DOMINO
  • Insulator Pollution Monitor
  • Intelligent Diagnostic Devices
  • LCM II
• Insulation Analysis
• Oil/Materials Analysis
• Partial Discharge Detection
• Surge Arrester Monitoring
• Sweep Frequency Response
  Analysis
• Transformer Diagnostics

• By Product

Continuous Online Diagnostics

Doble has created a variety of online devices to manage the state of your bushings/CTs, transformers, circuit breakers, and other apparatus.

DOMINO

Accurate moisture and temperature data is necessary to determine the condition of electrical apparatus or its insulating liquid. However, the data by itself may not always be sufficient to identify potential problems, especially in transformer systems. Doble developed one of the first analytical techniques for measuring dissolved water in oil and the first online moisture monitor: DOMINO.

Insulator Pollution Monitor (IPM)

IPM is designed to perform­ continuous online m­onitoring of external pollution effects on high-voltage insulators and other insulator housings, such as surge arresters and bushings. By m­easuring the surface leakage current of the insulators, IPM can classify the severity of the pollution. You can use this information to m­ake decisions on insulator m­aintenance.

Intelligent Diagnostic Devices

Intelligent Diagnostic Devices (IDDs), a family of continuous online diagnostic devices for power system apparatus, are designed to detect incipient problems with bushings/CTs, transformers, and circuit breakers. Now you can safely manage progressive problems and efficiently schedule corrective action. There are three types of IDD instruments: Moisture, Bushings, and Dissolved Gas Analysis.

LCM II

The LCM II Leakage Current Monitor measures the resistive component of continuous leakage current in gapless metal oxide surge arresters (MOSAs). Increased resistive leakage current indicates a higher risk of MOSA breakdown.