Short Circuit Fault Indicator Type EKL5
Model Number: EKL5
Type: Panel Type
Usage: Ring Main Unit, Cable Distribution Box, Switch Cabinet
IP Code: IP65(Fault Indicator Sensors) / IP55(Indicator Host)
Short Circuit Fault Indicator Type EKL5 is widely used in 3kV-40.5kV power distribution systems, in various ring network cabinets, switch cabinets and cable branch boxes. By separately monitoring the line current and short circuit current of the three phases, the indicator can indicate a short circuit fault, which can indicate a ground fault by monitoring the zero sequence current. The fault indicator can be used by visual or audible alarms to help the inspector quickly find the location where the short circuit or ground fault occurred.
Current sensors are respectively installed on the three-phase line to monitor the line current change of the three-phase line. When the line current change amount reaches or exceeds the short-circuit fault alarm threshold (the alarm threshold can be set according to the user's needs), the short circuit The fault sensor will output an alarm signal, which is transmitted to the display unit through the optical fiber, and the corresponding fault indicator on the display unit will flash an alarm.
The short circuit and ground detector consists of 3 single-phase current sensors and 1 ground current sensor
Short-circuit fault indication: L1, L2, L3 are separated by one indicator
Ground fault indication: indicated by an indicator light
Remote transmission indication via two relay contacts
Auxiliary power supply: 24V-230V DC/AC or built-in lithium battery with low potential reminder
With reset/test button
Automatic reset: 8h/12h/24h/48h for user to choose settings
The principle of the short-circuit part is based on the short-circuit phenomenon; the current is abruptly changed at the moment of short-circuit, and the protection action is blackout as the action basis.
The grounding part detects the zero-sequence current of the line as the judgment basis, and the display mode is completed by the indicator light on the panel. When the cable system fails, if the grounding indicator on the panel is on, it indicates that the cable system has a ground fault; if a two-phase short-circuit indicator on the panel is on, it indicates that the two phases have a short-circuit fault.
Short circuit fault alarm indication
Low battery alarm indication
Remote alarm and reset
Automatic reset (Selectable 220.127.116.11H)
Test and manual reset
High voltage electric indication
High voltage phase checking and electric examination
Main technical parameters:
Automatic reset time
4. 8. 12. 24H
Line voltage grade
Static power loss
Short circuit warning current
Action delay time
Short circuit withstand current
Applicable line diameter
Weight of whole set
Installing hole size
Indicator Host...........................................1 piece
Short Circuit Fault Sensor.........................3 pieces
High Voltage Electric Sensor..........................3 pieces
Sensor Optical fiber..................................3 pieces
Our products have already passed the test by CMA, CNAS,CE till now, and we also have ability to arrange other relevant testing and factory audit as your requirement.