Status: Various — Current and Legacy Models
Overview
Megger manufactures a comprehensive range of transformer test equipment covering turns ratio, winding resistance, frequency response analysis, power factor/dissipation factor, and leakage reactance. The TTR series measures transformer turns ratio with high accuracy. The MTO series measures winding DC resistance with automatic tap changer sequencing. The FRAX provides swept frequency response analysis (SFRA) for detecting winding deformation. The IDAX performs insulation diagnostic analysis using dielectric frequency response. The Delta series and CB-100/CDAX605 measure power factor and dissipation factor for insulation condition assessment.
Specifications
| Parameter | Value |
|---|---|
| TTR Accuracy | ±0.1% turns ratio (TTR330) |
| MTO Current | Up to 50 A DC winding resistance (MTO330) |
| FRAX Range | 1 Hz to 25 MHz swept frequency |
| IDAX Range | 1 mHz to 5 kHz dielectric frequency response |
| Key Features | Automatic tap changer sequencing, SFRA winding analysis, dielectric response, power factor/dissipation factor testing |
Models We Repair
Select your model below to request a repair. If your exact model isn’t listed, choose the closest match — the evaluation and repair process is the same across all Megger Transformer Testers configurations.
| Model | Description | Service |
|---|---|---|
| Megger TTR330 | Transformer turns ratio tester, 3-phase | Request Repair |
| Megger TTR310 | Transformer turns ratio tester | Request Repair |
| Megger TTR300 | Transformer turns ratio tester | Request Repair |
| Megger MTO330 | Transformer ohmmeter, 50 A | Request Repair |
| Megger MTO300 | Transformer ohmmeter | Request Repair |
| Megger MTO210 | Transformer ohmmeter | Request Repair |
| Megger FRAX | Frequency response analyzer for transformer windings | Request Repair |
| Megger IDAX350 | Insulation diagnostic analyzer | Request Repair |
| Megger IDAX300 | Insulation diagnostic analyzer | Request Repair |
| Megger Delta 4310 | Power factor test set | Request Repair |
| Megger Delta 4110 | Power factor test set | Request Repair |
| Megger CDAX 605 | Power factor tester | Request Repair |
| Megger CB-100 | Power factor tester | Request Repair |
| Megger 670070 | Dissipation factor test set | Request Repair |
| Megger 670065 | Dissipation factor test set | Request Repair |
| Megger 670025 | Factor test set | Request Repair |
| Megger CTER-91 | Current transformer tester | Request Repair |
| Megger MCTT-10 | Transformer tester | Request Repair |
| Megger MLR10 | Leakage reactance tester | Request Repair |
| Megger MRCT | Transformer tester | Request Repair |
Common Megger Transformer Testers Failures We Repair
- Precision measurement circuit calibration drift
- High-current source degradation on winding resistance testers
- Communication interface failures (USB, RS-232, Ethernet)
- Display or touchscreen failure
- Internal reference standard drift
- Battery performance degradation on portable units
- Test lead connector wear from repeated field connections
Our technicians perform component-level diagnostics on every Megger Transformer Testers unit. We don’t just replace boards — we identify and repair the specific failed components, saving you the cost of full module replacements when possible.
Calibration
Every Megger Transformer Testers repair includes NIST-traceable calibration. We verify all critical measurement and output functions against our reference standards and provide a detailed calibration certificate documenting measured performance against the manufacturer’s published specifications.
Who Uses Megger Transformer Testers?
The Megger TTR / MTO / FRAX / IDAX / Delta / CTER / MCTT / MLR Transformer Test Equipment are used by electric utilities, transformer maintenance contractors, substation engineers, power generation facilities, and industrial high-voltage maintenance.
Our Repair Process
- Ship Your Instrument: Send your Megger Transformer Testers to our facility from anywhere in the US. We provide prepaid shipping labels on request.
- Free Evaluation: Our technicians perform a complete diagnostic assessment and provide a firm, no-obligation repair quote.
- Expert Repair: Upon approval, we perform component-level repair using OEM-grade parts.
- NIST-Traceable Calibration: Full calibration with documented results across all critical parameters.
- Return Shipment: Your instrument is securely packaged and returned with calibration certificate, repair documentation, and our 90-day warranty.
Request a Repair
Contact us for professional Megger Transformer Testers repair and calibration. Our team is ready to evaluate your instrument and provide a no-obligation quote.
Email: info@junecompany.com | All repairs include a 90-day parts and labor warranty.
