Megger MIT1525/2 | 15 kV Insulation Tester

The Megger MIT1525/2 is a top-tier 15 kV insulation resistance tester, engineered for the most demanding high-voltage diagnostic applications. As the flagship model in the Advanced range, it provides unparalleled precision and reliability for technicians and engineers working with critical assets such as power transformers, bushings, large motors, and extensive cable networks. Its rugged, dual-case construction provides superior protection in harsh field environments, with an IP65 rating to safeguard against dust and water ingress.

Designed for operation in extreme EHV substations and other high-interference settings, the MIT1525/2 features an impressive 6 mA noise rejection capability. This ensures stable, accurate readings up to 30 TΩ, allowing for confident assessment of insulation integrity. The instrument supports a complete range of diagnostic tests, including Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Stepped Voltage (SV), and Ramp testing, providing a thorough analysis of insulation condition.

Safety is paramount in high-voltage testing, and the MIT1525/2 sets the standard with a CAT IV 1000 V safety rating up to 3000 m. It incorporates multiple safety warnings and is supplied with test leads specifically insulated for 15 kV applications. The instrument offers user-definable test voltages from 100 V to 15 kV, providing maximum flexibility for a variety of testing requirements.

Efficient workflow is supported by advanced data management features, including on-board memory for storing time and date-stamped results. Data can be transferred securely via an isolated USB connection or wirelessly using Bluetooth LE, enabling seamless integration with CertSuite Asset and PowerDB software for in-depth analysis and professional reporting. The rapid-charge dual Li-ion battery system delivers 4.5 hours of continuous testing and can be powered from an AC source, ensuring the MIT1525/2 is always ready for operation.

Key Features

• 15 kV Test Voltage: Provides high voltage capability for testing transmission-level and other critical high-voltage electrical assets.
• Exceptional Safety Rating: CAT IV 1000 V rating ensures maximum user protection in high-energy environments.
• High Noise Rejection: Delivers 6 mA of noise immunity for reliable and stable measurements in EHV substations.
• Extensive Measurement Range: Measures insulation resistance up to 30 TΩ for comprehensive diagnostic capability.
• Advanced Data Management: Features on-board memory with time/date stamp and data transfer via USB and Bluetooth LE.
• Full Suite of Diagnostic Tests: Includes PI, DAR, DD, SV, PDC, and Ramp test modes for complete insulation analysis.
• Robust Dual-Battery System: Operates on AC mains or its rapid-charge Li-ion batteries for up to 4.5 hours of continuous use.