Megger MGFL100 Battery Ground Fault Locator
- Fast and accurate fault detection for AC and DC electrical systems
The Megger MGFL100 Battery Ground Fault Locator is your go-to solution for quickly finding earth faults in both ac systems and battery system setups. Designed for professionals in the power and utilities industry, this handheld device locates ground faults in ungrounded DC and AC IT networks—online or offline—without shutting anything down. Whether you’re maintaining power supplies, hospital circuits, railway networks, or high-uptime industrial sites, the Megger MGFL100 ensures accurate detection every time, even in noisy or high-capacitance environments.
Key Features of the Megger MGFL100
- Real Fault Detection: Filters out noise and capacitance. The Megger MGFL100 triggers alarms only on true resistive faults—no more false readings.
- Precise Readings: Displays fault resistance, system capacitance, leakage current, and fault current with clarity.
- Dual Power Sources: Run from its internal battery or plug it into mains power for longer field jobs.
- Safety First: Set secure voltage and current limits with a password, helping avoid accidental tripping or equipment damage.
- ARC Flash Protection: Fused leads offer added safety when testing live DC systems.
- Wide Fault Range: Detects faults with resistance up to 400 kΩ on circuits up to 600 V.
- Clear Alerts: Audible and visual indicators help you find faults without constant screen checking.
- Multi-System Use: Works on battery systems, ungrounded DC networks, and AC IT networks with an optional coupling filter.
- Memory Built-In: Save your test results for future reference and reporting.
- No Extra Tools Needed: No multimeter required. The unit identifies which side of the battery string the fault is on.
Powerful in Any Environment
Battery Ground Fault Locator for DC Systems
The Megger MGFL100 battery ground fault locator works flawlessly on ungrounded DC setups like battery systems, solar banks, and railway control circuits. It excels in tracing high-resistance faults caused by insulation damage or moisture. Simply connect and trace—no manual tuning required.
Safe Fault Tracing in AC Networks
In ac systems like medical-grade IT networks or maritime vessels, even one earth fault can be dangerous. The Megger MGFL100 injects a low-frequency signal that allows tracing faults without disrupting service or tripping protection devices.
Whether you’re tracing faults in hospitals, marine systems, or substations, this megger ground fault locator helps you stay online and stay safe.
Why Choose the Megger MGFL100 Battery Ground Fault Locator?
The Megger MGFL100 is more than just a battery ground fault detector—it’s a powerful field tool that eliminates guesswork.
- Designed for quick, accurate diagnostics
- Trusted across energy, transport, healthcare, and industrial sectors
- Operates in noisy environments and low frequencies (down to 16.67 Hz)
- Complements your toolbox—ideal with a megger battery ground fault tracer setup
Common Use Cases
- Battery system installations
- Power supplies in industrial sites
- Hospitals and medical facilities (AC IT networks)
- Railway signal control and electric transit
- Marine electrical systems
- Substations and high-availability infrastructures
▶ A Powerful Tool! Basic Operation Video:
▶ Noise on The grid?
❓ Frequently Asked Questions (FAQ)
Q1: Can the Megger MGFL100 be used while the system is running?
A. Yes! The Megger MGFL100 battery ground fault locator works on live systems. You can trace faults without interrupting service.
Q2: Is this the same as a regular battery ground fault detector?
A. It‘s more advanced. The Megger MGFL100 combines the best of a battery ground fault tracer, locator, and detector with added safety and accuracy features.
Q3: Does it work with AC and DC systems?
A. Yes. Use it for both ungrounded DC systems and AC IT networks (with optional coupling filter).
Q4: What kind of faults can it detect?
A. It detects high-resistance ground faults—up to 400 kΩ—as well as leakage and fault current.
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
Ready to Move Forward?
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