Megger MGFL100 Battery Ground Fault Locator
- Fast, Accurate Ground Fault Detection on AC and DC Systems
The Megger MGFL100 Battery Ground Fault Locator is a powerful, versatile tool designed to locate ground faults on ungrounded DC systems, battery installations, and AC IT networks—both online and offline. With precise measurements and smart alarm features, the Megger MGFL100 simplifies fault finding and eliminates guesswork, even in high-capacitance or noisy environments.
Megger MGFL100 Key Features:
- Real fault detection: Alarms only when a true resistive ground fault is found—no false positives from stray capacitance.
- Direct measurement: Accurately reads fault resistance, system capacitance, fault current, and leakage current.
- Dual power options: Operates from internal battery or AC mains, enhancing field flexibility.
- Adjustable safety limits: Set password-protected voltage and current thresholds to avoid circuit damage or breaker tripping.
- ARC flash protection: Fused leads at the connectors ensure operator safety on live DC systems.
- High resistance detection: Locates faults up to 400 kΩ on systems up to 600 V.
- Audible and visual alerts: Quickly identify faulted circuits with built-in indicators—no manual tuning required.
- AC/DC versatility: Locates faults across ungrounded DC systems and IT-grounded AC networks (with optional coupling filter).
Applications
The Megger MGFL100 is ideal for use in:
- DC battery strings (ungrounded)
- Substations and power plants
- Railway signal and control lines
- Hospitals and medical IT networks
- Maritime electrical systems
- Industrial facilities with critical uptime requirements
DC Ground Faults: Made Easy
The Megger MGFL100 excels at identifying and tracing high-impedance ground faults caused by insulation breakdown or water ingress. It measures both resistive and capacitive leakage currents, ensuring fast, accurate fault location even in systems with high background capacitance. No manual tuning or calibration is needed—just connect and trace using the lightweight transmitter and receiver.
AC Ground Faults: Safe, Online Fault-Finding
In sensitive AC IT networks—like those in hospitals or railway control systems—a single ground fault may not disrupt operations but poses serious risks if left uncorrected. The Megger MGFL100 enables fault tracing without interrupting service, using a low-frequency AC signal that won’t trip DC breakers. Locate faults safely and efficiently, even in complex installations.
Why Choose the Megger MGFL100?
- Zero guesswork: Automatically filters out reactive leakage currents, isolating true resistive faults.
- Field-ready: Compact, portable design with robust build for on-site use.
- Built-in memory: Save and recall test results for reporting and verification.
- No DMM needed: Identifies faulted side of the battery string without additional tools.
- Low-frequency output: Operates even on 16.67 Hz systems and in noisy environments.
What comes with the Megger MGFL100?
- (1011-259) MGFL100 Transmitter
- (1011-261) MGFL100 Receiver
- (1013-440) Transmitter leads with large and small fuse clips
- (1014-426) Transmitter power adapter (powers transmitter and charges internal batteries)
- (90028-218) Transmitter batteries 4 required per transmitter.
- (1011-353) ICLAMP current sensor (ICLAMP and cable for MGFL100 receiver)
- (23415) MGFL100 Active CT 9V battery
- (1011-540) Sync Cable (used between MGFL100 transmitter and receiver, or capacitive pick up and receiver to allow measurement of leakage current)
- (1011-352) Transmitter Safety Ground (green safety ground cable)
- (2012-180) Carry backpack for MGFL100 accessories
- (1015-367) 9m (30ft) Sync Cable
The Megger MGFL100 Battery Ground Fault Locator delivers unmatched accuracy, safety, and convenience in ground fault location across both AC and DC networks. Whether you‘re maintaining critical infrastructure or troubleshooting complex faults, the Megger MGFL100 provides a fast, reliable solution every time.
Order your Megger MGFL100 today and ensure maximum uptime and safety in your electrical systems.