Megger MTO106-W-ACC Transformer Ohmmeter
Megger MTO106-W-ACC transformer ohmmeter with accessory package for field testing of winding resistance with dual channels, ±0.25% accuracy, and 48V test voltage.
Product details
| Model | MTO106-W-ACC |
| Manufacturer | Megger |
| Category | Electrical Testers |
| Availability | Made to order |
Description
Overview
The Megger MTO106-W-ACC is a line-operated transformer ohmmeter specifically designed for safe and accurate field measurement of winding resistance in transmission and distribution transformers. It features dual channels and a wide measurement range suitable for power transformers, reactors, and instrument transformers of various sizes.
The instrument offers simplicity of operation with a single selector switch for test current and a single button to activate the test cycle. It is supplied with 10 meter test leads fitted with Kelvin clamps for secure one-time connection to units under test. The compact, lightweight design is housed in a rugged plastic case rated IP67, ensuring portability and protection in harsh field conditions.
Key Features
- Dual channels with maximum 6 A current output
- ±0.25% measurement accuracy
- 48 V test voltage for fast transformer saturation
- Automatic passive discharge circuitry for safety
- 10 m (33 ft) test leads with Kelvin clamps
- IP67 rated plastic case for harsh environment protection
- Multimeter-type operation for intuitive use
Applications
- Field testing of power transformer winding resistance
- Reactor and instrument transformer testing
- Pole-mounted transformer diagnostics
Included Accessories
- Test leads with Kelvin clamps (10 m / 33 ft)
- Rugged plastic carrying case
Specifications
| Measurement Accuracy | ±0.25% |
| Number of Channels | 2 |
| Maximum Output Current | 6 A |
| Test Voltage | 48 V |
| Test Lead Length | 10 m (33 ft) |
| Test Lead Type | Kelvin clamps |
| Enclosure Rating | IP67 |
| Housing Material | Plastic case |
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Megger MTO106-W-ACC Transformer Ohmmeter