| Type: | Distribution Metering Box |
|---|---|
| Structure: | Fixed Board |
| Certification: | ISO9001:2000 |
|
Still deciding? Get samples of $ !
Request Sample
|
Suppliers with verified business licenses
The EKL4 Fault Indicator is a real-time monitoring device designed for power distribution networks. It detects and signals short-circuit and single-phase grounding faults in cable sections, enabling quick fault localization for maintenance personnel. Installed in ring main units (RMUs), cable branch boxes, or box-type substations, it enhances power supply reliability and operational efficiency.
Short-Circuit Alarm
Triggers when fault current exceeds the preset threshold (default: 800A, adjustable).
Signal transmitted via fiber optics to the host unit for visual/remote alerts.
Grounding Fault Detection
Detects zero-sequence current; alarms activate at a set threshold (e.g., 20A).
Reset Options
Supports manual reset or auto-reset (configurable timer: 6/12/24/48 hours).
Remote Monitoring
Relay output (NO/NC contacts) for integration with SCADA or fault notification systems.
Self-Test Function
On-board button for LED and relay status checks.
Host Unit: Panel-mounted (cutout: 91×43mm); compatible with RMUs and switchgear.
Sensors:
Short-circuit sensor: Clamped onto single-phase cables.
Grounding sensor: Wrapped around three-phase cables with grounded conductor loop-through.
Power: 3.6V lithium battery (ER14505, ≥7-year lifespan).
Rating: Suitable for systems ≤20kV; IP40 (host), IP65 (sensors).
Widely used in power grids, the EKL4 reduces outage durations by streamlining fault identification. For technical details, consult manufacturer documentation.
| Ambient temperature: | -35ºC≤T≤+75ºC | Relative humidity: | ≤85% |
| Pollution: | JP40 | Automatic reset time: | 4.8.12.24H (Default 12H) |
| Line voltage grade: | ≤35KW | Battery capacity: | 3.6V 2Ah Service life 5 Years |
|
Relay capacity: |
AC230V/2A |
Earth fault warning current: |
≥20A(Default 20A) |
| Protection class: |
IP65 |
Short circuit warning current: |
≥100A(Default 800A) |
| Accuracy: | < ±10% | Action delay time: | 20-300ms |
| Short circuit withstand current: | ≥20kA 2S | Applicable line diameter: | ≤Φ400mm |
| Weight of whole set: | <1000g | Installing hole size: | 92mm×44mm |
){kind=link}