Megger MIT1020.2 10kV

The Megger MIT1020.2 10kV Insulation Resistance Tester is a rugged, high-performance diagnostic instrument designed to accurately measure insulation resistance in medium‑ and high‑voltage electrical systems. Delivering stable DC test voltages up to 10 kV, this tester is ideal for evaluating the insulation condition of power cables, transformers, switchgear, motors, generators, and other critical electrical assets.

Built for field use in utility, industrial, and commercial environments, the MIT1020.2 combines precise measurement technology with a robust, portable design that withstands demanding conditions. With a wide measurement range extending from megohms (MΩ) into the teraohms (TΩ) range, it enables technicians and engineers to detect early signs of insulation degradation, contamination, moisture ingress, aging, and potential faults before they lead to failure.

The MIT1020.2 supports a comprehensive set of test functions tailored for thorough insulation analysis, including:

• Insulation Resistance (IR) Testing at selectable DC voltages up to 10 kV

• Polarization Index (PI) for evaluating long‑term insulation performance

• Dielectric Absorption Ratio (DAR) for deeper insulation condition assessment

• Step Voltage Testing to examine insulation behavior under increasing stress

• Leakage Current Measurement for pinpointing insulation flaws

• Automatic Discharge of the test object after completion, enhancing safety

Safety and ease‑of‑use are core elements of its design. The instrument features clear visual displays for real‑time readouts of test voltage, resistance, and leakage current, along with intuitive controls for quick test setup. Integrated safety protections — such as zero‑start interlocks, voltage‑presence indicators, discharge circuits, and rugged enclosure design — ensure secure high‑voltage operation even in challenging field settings.

To support asset management and maintenance documentation, the MIT1020.2 offers internal data storage and PC connectivity for exporting results and generating professional reports. This capability makes it a valuable tool for condition‑based maintenance, compliance verification, and preventive maintenance programs.

Whether performing insulation tests on underground power cables or validating transformer insulation integrity, the Megger MIT1020.2 provides reliable performance, accurate measurements, and essential safety features that professionals depend on to maintain electrical system reliability and reduce downtime.

Specification

High‑Voltage Output

• Maximum Test Voltage: Up to 10 kV DC

• Selectable Test Values: Typically includes standard steps (e.g., 500 V, 1 kV, 2.5 kV, 5 kV, 10 kV)

• Controlled Ramp‑Up / Ramp‑Down: Smooth voltage application and reduction to protect insulation under test

• Stable DC Output: Maintains consistent voltage for accurate measurement on high‑capacitance loads

Insulation Measurement & Test Functions

• Insulation Resistance (IR): Measurement from megohms (MΩ) up into teraohms (TΩ)

• Polarization Index (PI): Evaluates insulation condition over a timed interval

• Dielectric Absorption Ratio (DAR): Secondary indicator of insulation absorption performance

• Step Voltage Testing: Multi‑level voltage application to observe insulation response

• Leakage Current Measurement: Detects current associated with insulation imperfections

• Automatic Discharge: Discharges the test object safely at end of the test

Display & User Interface

• Large Digital Display: Real‑time readout of test voltage, resistance value, leakage current, and test duration

• Intuitive Controls: Easy selection of test voltage levels and test modes

• Visual Indicators: Test status and safety warnings clearly displayed

Safety & Protection Features

• Zero‑Start Interlock: Ensures test does not begin until safe conditions are met

• Voltage Presence Indicator: Alerts if voltage remains after testing

• Integrated Discharge Circuit: Protects operator and equipment by discharging after test

• Rugged Field Enclosure: Durable design for industrial and outdoor environments

Data Handling & Connectivity

• Internal Memory: Stores test results for later retrieval

• PC Connectivity: Export data to computer for analysis and reporting

• Software Support: Works with reporting and analysis applications

Power & Environmental

• Power Supply: Mains powered with suitable safety circuitry

• Operating Temperature: Suitable for field environments (approx. –10 °C to +50 °C)

• Portable Construction: Designed for field maintenance and installation testing

Typical Applications

• Insulation testing of medium‑voltage power and control cables

• Transformer insulation diagnostics

• Switchgear and breaker insulation verification

• Motor and generator insulation evaluation

• Commissioning and preventive maintenance testing

• Utility and industrial asset condition monitoring