- Compact and portable
- Air insulated, uses no oil
- ±2% accuracy
- Leakage current measurement as low as 0.1 mA
- Continuously variable test voltage with zero-start safety interlock
- Fast charging of high-capacitance samples
- Current guard circuit for highly accurate measurements
- Strip chart recorder for hard copies (optionally available)
Megger portable dc dielectric test sets check the electrical insulation quality of motors, power cables, switchgear, insulators, transformers and capacitors. Typical applications include acceptance and maintenance testing of critical equipment used by electrical utility substations and industrial plant distribution systems. Power apparatus manufacturers may also use the equipment to perform QA/QC production tests.
The test sets can be used to perform step-voltage and proof tests which, when incorporated into a routine maintenance program, can aid in predicting potential failure before breakdown occurs.