Earth Leakage Monitoring System (ELMS)

Monitoring & Control Solutions

Early Detection, Maximum Protection

Earth faults are silent threats that compromise both safety and uptime. Chhabi’s ELMS identifies insulation degradation at an early stage, enabling operators to take preventive action before minor leaks escalate into major hazards

Earth Leakage Monitoring System (ELMS)

ELMS is a precision system for detecting ground faults in DC systems, offering multi-channel monitoring and seamless integration with control infrastructure.

High-precision leakage detection

Multi-channel monitoring up to 8 feeders

Clear alerts with local and remote signals

SCADA integration ready

Reliable Ground Fault Detection for Critical Systems

By monitoring leakage currents in real time, ELMS ensures operators can act before faults compromise safety or continuity. Its compact, centralized design makes it indispensable for substations, utilities, and industrial DC systems.

High-Precision Detection

Identifies positive and negative ground faults with sensitivity down to 50mA (100mA optional).

Multi-Channel Monitoring

Simultaneously supervises up to 8 independent feeders.

Clear Alerts

Seven-segment LED displays per feeder, with positive/negative indicators.

Remote Integration

Modbus RTU/TCP options for SCADA/BMS connectivity.

User-Friendly Operation

Includes scan-and-hold function with configurable scan time

Technical Specifications

Specification	Details
Monitoring Range	24V – 360V DC systems
Cell Voltage Accuracy	±0.05%, resolution 1 mV
Internal Resistance	0.1–64 mΩ, resolution 1 µΩ, ±2% accuracy
String Voltage	Up to 2500V DC, resolution 10 mV, ±0.1% accuracy
Current Monitoring	Up to 500A, resolution 10 mA, ±1% accuracy
Temperature	–10°C to +100°C, resolution 0.1°C, ±2% accuracy
Humidity	5–90% RH, resolution 1%, ±5% accuracy
SOC / SOH Estimation	SOH 0–100%, resolution 1%, ±5% accuracy
Communication	RS-485 Modbus RTU, Ethernet (TCP/IP), optional Wi-Fi/GPRS
Protections	Internal fuses, reverse polarity protection
Operating Conditions	–10°C to +70°C, 5–90% RH, 80–110 kPa pressure
Enclosure	ABS/metal, modular power design

Why Choose Chhabi ELMS?

With ELMS, industries gain a reliable shield against hidden earth faults, reducing downtime and improving safety.

Detects leakage currents with high precision
Monitors multiple feeders from a single unit
Provides both local and remote alerts
Seamless integration with plant SCADA systems
Compact and user-friendly design
Backed by Chhabi’s trusted industrial expertise

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Monitoring & Control Solutions

Early Detection, Maximum Protection