Short Circuit and Earth Fault Indicator EKL4

Description

(for 3kV-40.5kV Power Distribution Networks)

—EKL4

Short Circuit and Earth Fault Indicator indicates high voltage power line short circuit fault by detecting the 3 single-phase line-currents and short circuit currents, and the grounding fault by detecting the zero sequence currents. With visual or audible indicators, it helps line patrol staff to fast find out the location where there is a short circuit or grounding fault on the 3kV-40.5kV power distribution networks, switchgears or cable branching units etc.

 

Short circuit fault alarm indication

Short-circuit fault sensors installed on 3 single phase cables, monitoring the current changes of the power supply lines, when the current change value reach or exceed Threshold currents for short circuit alarm (this value can be set as per user requirement), the short circuit fault sensors output alarm signal, through optical fiber the signal will be sent to the indicator host, the corresponding fault indicator light will flash to alarm the short circuit fault.

 

 

Earth fault alarm indication

Earth fault sensor installed on the bifurcation unshielded part of three-phase cable, detection the zero sequence current value of the three-phase cable, when its value reach or exceed Threshold currents for grounding fault alarm (this value can be set as per user requirement), the earth fault sensor outputs alarm signal, through optical fiber the signal will be sent to the indicator host, the earth fault indicator light will flash to alarm the earth fault.

 

Product Features

• Short-circuit and earth fault detection with 3 single-phase current sensors, and one grounding current sensor
• Short-circuit indication (3 single phase L1,L2,L3) by three super bright LEDs respectively
• Earth fault indication by one super bright LED display
• Remote indication via 2 relay contacts
• Auxiliary power supply: 24V-230V DC/AC or built-in Li-ion battery with low-power-status indication
• Reset/Test Button
• Remote reset
• Auto-reset: 7s/8h/12h/24h reset time for options

 

Technical Data

 

Product Dimensions

Terminal Diagram

Terminal Definitions

 

Ordering Information