Megger NIM1000 Loop Impedance Tester
The Megger NIM1000 is an advanced megger earth loop impedance tester engineered for accurate, high-current diagnostic testing in low-voltage electrical networks. Designed for utility teams, industrial electricians, and commissioning engineers, the Megger NIM1000 provides precise loop impedance measurements under real-world load conditions using test currents up to 1000 A. This high-current capability helps reveal hidden problems such as weak contacts, neutral conductor faults, and load-dependent issues that traditional testers often fail to detect. With its rugged build, intuitive rotary control, and bright TFT display, the Megger NIM1000 delivers professional-grade performance for demanding on-site environments.
As a versatile megger earth loop impedance tester, the Megger NIM1000 measures complex impedance up to the 10th harmonic, allowing users to evaluate the true behaviour of electrical systems under load. Its sophisticated measurement process uses a controlled load circuit and real-time waveform capture, providing accurate readings for resistance, reactance, and overall network impedance. Whether used for preventive maintenance, network approval testing, or troubleshooting intermittent faults, the Megger NIM1000 ensures fast, reliable, and repeatable results.
The Megger NIM1000 also supports both single-phase and multi-phase testing, automatically switching between phases to provide a complete assessment of the electrical installation. Its capability to calculate voltage dips (VDIP) and maximum connected load (PMAX) makes it extremely valuable for verifying system design, checking fuse ratings, and confirming safe operating limits. This functionality ensures that installations remain compliant, safe, and prepared for today’s increasingly demanding electrical loads.
▶ Megger NIM1000 Loop Impedance Tester – Technical Overview for Engineers
Key Features of the Megger NIM1000
- High test current capability up to 1000 A, ensuring maximum measurement accuracy.
- Measures impedance, resistance, reactance, and PEN conductor impedance up to the 10th harmonic.
- Single and three-phase operation, ideal for LV utilities and industrial networks.
- Automatic phase switching during multi-phase assessments for efficient workflow.
- Reveals load-sensitive and neutral faults, including issues that appear only under stress.
- 5.7" sunlight-readable colour display for clear viewing on site.
- USB data export for easy reporting and storage of up to 1000 test records.
- Rugged, field-ready construction with IP50/IP53 protection.
- Wide input voltage range and CAT IV 300 V safety rating.
Why Choose the Megger NIM1000?
The Megger NIM1000 stands out because it delivers professional-level accuracy while remaining simple to use in the field. As a high-performance megger earth loop impedance tester, it assesses the condition of cables, busbars, distribution boards, and supply lines with exceptional precision. Its real-time measurement method captures how installations behave under different loads, providing a deeper understanding of grid stability and potential weak points.
By enabling long-term monitoring, automatic multi-phase analysis, and advanced harmonic evaluation, the Megger NIM1000 provides actionable insights that help prevent downtime, maintain power quality, and ensure the safe operation of electrical infrastructure. For engineers who require reliability, accuracy, and durability in one device, the Megger NIM1000 is the ideal choice.
❓ Frequently Asked Questions (FAQ)
Q1: What does the Megger NIM1000 measure?
A. It measures impedance, resistance, reactance, PEN impedance, voltage dip, maximum connected load, and short-circuit parameters.
Q2: Can the Megger NIM1000 detect intermittent faults?
A. Yes. Its fault mode gradually increases load to uncover load-dependent and neutral conductor faults.
Q3: Does it support three-phase systems?
A. Yes, it automatically switches between phases for full multi-phase analysis.
Q4: Can data be exported?
A. Yes. It stores over 1000 test results and exports them via USB in CSV format.
Q5: Is it suitable for industrial testing?
A. Yes. It’s built for demanding environments and meets CAT IV 300 V electrical safety standards.
Note: Be sure to check the official datasheet before buying, and the user manual before using any test equipment. Need training? Just reach out - we’re happy to help