EKL-5 Fault Indicator | Short Circuit & Grounding Indicator

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Features:

The EKL-5 fault indicator is a high-performance detection componentdesigned for medium-voltage power distribution systems, specificallytailored for 3kV-40.5kV applications. As a key accessory for ring mainunits (RMU), gas insulated switchgear (GIS), and cable branch boxes,this EKL-5 fault indicator efficiently identifies short circuit and earthfaults in power lines, helping maintenance teams quickly locate faultpoints and reduce downtime. Developed by Xizi Energy, the EKL-5 faultindicator adheres to IEC international standards, ensuring stableperformance, high reliability, and strong compatibility with mainstreamswitchgear brands such as Schneider, ABB, and Siemens.

For complete RMU accessorysolutions to match the EKL-5 fault indicator, you can explore our RMUswitchgear accessories page.

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Description:

Key Features and Functionality

1. Dual Fault Detection: Precisely identifies both short circuit and earthfaults in 3kV-40.5kV distribution systems, with adjustable alarmcurrent to adapt to different working conditions.

2. Fiber Optic Communication: Equipped with fiber optic transmissiontechnology, enabling stable long-distance data transmission andremote fault monitoring without signal interference.

3. IP65 Protection Level: Fully sealed design with IP65 protection,effectively resisting dust, moisture, and harsh environmentalconditions, suitable for outdoor and harsh industrial environments.

4. Visual & Remote Alarm: Features on-site visual alarm (red LEDindicator) and remote alarm function, allowing maintenancepersonnel to quickly respond to faults without on-site inspection.

5. Long-Lasting Battery: Built-in high-capacity lithium battery with aservice life of up to 8 years, reducing maintenance frequency andoverall operational costs.

Main Technical Parameters (Typical Values)

Parameter Category Typical Specifications
Rated Voltage Suitable for 6/10/35kV distribution systems
Fault Detection Short-Circuit: Current surge detection (e.g., ≥1.5 times rated current)
Ground Fault: Transient method / zero-sequence current method (range: 0.5A–200A)
Temperature Measurement Channels: 1 to 12 (configurable)
Range: -40℃ to +150℃
Accuracy: ±1℃ to ±2℃
Wireless Range: ≤ 10m (within cabinet)
Display & Output LCD screen / LED indicators, relay alarm output (dry contact)
Communication Interface RS485 (Modbus), 4G / NB-IoT, LoRa, etc. (optional)
Power Supply AC/DC 85V–265V, or battery-powered (low-power version)
Operating Environment Temperature: -20℃ to +70℃, Humidity: ≤95% RH

Application scenario

1. Ring Main Units (RMU): Suitable for indoor and outdoor RMUsystems, providing real-time fault detection for cable circuits andswitchgear components.

2. Cable Branch Boxes: Ideal for medium-voltage cable branch boxes inurban power grids, helping to quickly locate faults in cable branches.

3. Pad-Mounted Substations: Compatible with pad-mounted substationsin industrial and commercial areas, ensuring stable operation ofpower distribution systems.

Compatibility

The EKL-5 fault indicator is fully compatible with mainstream medium-voltage switchgear brands, including Schneider RM6, ABB V/F Cabinets,and Siemens 8DJH series. Its universal installation design allows for easyintegration with existing RMU and GIS systems, without the need formajor modifications. Xizi Energy also provides customized adaptationservices to meet specific project requirements, ensuring seamlesscompatibility with different power distribution equipment.

OEM/ODM Services:

We offer comprehensive OEM and ODM services tailored to your specific requirements. Should you require customized products, our professional team will provide full support to meet your needs.

To ensure complete and stable operation of your switchgear system, we also provide a full range of matching switchgear instrument accessories including dehumidifiers, live line indicators, and electromagnetic locks for comprehensive equipment protection.

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