FAULT INDICATOR TYPE EKL8000NG / EKL8001NG

Product catalog summary

General Description: The document describes an earth-fault and short-circuit indicator suitable for radial and ring networks. It requires solidly or low resistance-earthed networks for earth-fault detection. The system uses fibre optic cables for potential-free connections between sensors and the display unit. The sensors are divisible and can be retrofitted, with the short-circuit sensor applicable to both screened and unscreened cables, while the earth-fault sensor is for screened cables only. The EKL8001NG model includes two remote contact relays for separate fault indications.

Features and Options: The indicator provides permanent earth-fault indication via LED blinking, and a second short-circuit pass-through indication. It includes an optional reset input for 230 V AC recovery. External connectors are available for various functions, including SCADA remote contacts and external blinking lamps.

Specifications: The short-circuit trip current is adjustable between 200 to 1200 amps, and the earth-fault trip current between 10 to 100 amps. The response delay is adjustable from 40 to 160 ms. The indication unit is panel-mountable, with LEDs for short-circuit, earth-fault, and battery status. Reset options include manual, remote, timed, and automatic after 230 VAC recovery. The unit supports on-site function and battery tests via push-button.

Technical Data: The indication unit dimensions are 97 mm x 48 mm x 47 mm, with a protection class of IP40, while the short-circuit sensor is IP67. The operating temperature range is -25°C to +70°C, powered by a 3.6V lithium battery. SCADA contacts vary between models, with EKL8000NG having one NO and one NC, and EKL8001NG having two NO contacts. The sensors include three short-circuit sensors for single-core cables and one earth-fault sensor for three-core cables, with specified diameters and connection cable lengths.

Catalog excerpts

FAULT INDICATOR TYPE EKL8000NG / EKL8001NG-1

FAULT INDICATOR General description The earth-fault and short-circuit indicator can be used in radial networks with one input and ring networks. For earth-fault de- tection, the network has to be solidly earthed or low resistance- The potential-free connections between the short-circuit sensors, the earth-fault sensor and the display unit are done by fibre opti- cal cables. The short-circuit sensor can be mounted on screened and unscreened cables. The earth-fault sensor must be mounted All sensors are divisible and can be retrofitted on the cable. The fault indicators of the NG-Series have a compact design with low installation depth. The earth-fault and short-circuit indicator type EKL8001NG is equipped with two remote contact relays to indicate earth-faults Permanent earth-faults: Indication of permanent earth-faults by double blinking of the earth- 2nd short-circuit pass-through: Indication of a second short-circuit passing through by double blin- king of the respective short-circuit LED. Optional reset input: For reset by recovering 230 V AC External connectors Optical terminal (triple): Optical terminal (single): Connectors to short-circuit sensors L1, L2, L3 Connector to earth-fault sensor Remote reset input External blinking lamp (Type BL3.1 and BL4.1) Reset input for recovering 230 V AC (not for supply) SCADA remote contact (NC) SCADA remote contact (NO) SCADA remote contact for earth-fault indication (NO) SCADA remote contact for short-circuit indication (NO) Reset Input Reset Input Blinking white - ^~|| I IEFI licl I NO- ELEKTRO-MECHANIK EM GMBH Document Rev. 3 Ringstr. 4 - D-42553 Velbert / Germany Page 1

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FAULT INDICATOR TYPE EKL8000NG / EKL8001NG-2

DATA SHEET General data Subject short-circuit trip current (phase to phase) earth-fault trip current (phase to ground) response delay indication unit suitable for panel installation indication of a) short-circuit b) earth-fault c) battery a) one red LED for each phase b) one red LED for earth-fault c) one yellow LED a) manual by push-button b) connection for a potential-free remote reset c) time*: 1 / 2 / 4 / 8 (+/-1%) hours after fault d) self-acting after recovering of 230 VAC (the 230 VAC connector is only for reset, not for supply!) on site function test a) function test b) battery test by...

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