EARTH-FAULT AND SHORT-CIRCUIT INDICATOR TYPE EKL8001 / EKL8002 surface mounted

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1 EARTH-FAULT AND SHORT-CIRCUIT INDICATOR TYPE EKL8001 / EKL8002 surface mounted General description The earth-fault and short-circuit indicators type EKL8001 and type EKL8002 can be used in radial networks with one input and open-ring networks which are solidly earthed or low resistance earthed. The connection between the short-circuit sensors and the earth-fault sensor to the display unit is done by fibre optic cables. Therefore all connections from the sensors to the display unit are potential-free. The short-circuit sensors and the earth-fault sensor can be mounted on screened and unscreened cables. But the earth-fault sensor must be mounted on insulated cables only. All sensors are divisible and can be retrofitted on the cable. Features and Options Permanent earth-faults: 2nd short-circuit: Separate response delays: Two relays: Optional three relays: Optional reset input: Optional power supplies: Indication of permanent earth-faults by double blinking of the earthfault LED. Indication of a second short-circuit passing through by double blinking of the respective short-circuit LED. The response delay for short-circuits and earth-faults can be adjusted individually. Configurable two relays. Options for configuration: - permanent contact or wipe contact - combined or separate remote indication of earth-faults and shortcircuits - NO or NC contacts At site configuration by DIP switch. The third relay can be used for the remote indication of an empty battery (type EKL8002). For reset by recovering auxiliary voltage supply (V DC or V AC) V DC or 110/230 V AC power supply with optional lithium backup battery External connectors Connector 1-2: Connector 3-4: Connector 4-5: Optical terminal L1 - L3: Optical terminal E: Connector 14-15: optional external power supply remote test input remote reset input short-circuit sensors L1, L2 and L3 earth-fault sensor external blinking lamp (Type BL4.1+BL6) Connector 16-17: SCADA relay contact 1 Connector 18-19: SCADA relay contact 2 Connector 19-20: type EKL8002 only: SCADA relay contact for low battery remote indication figure 1 - connectors EM GMBH Page 1

2 General Data Subject short-circuit trip current (phase to phase) earth-fault trip current (phase to ground) response delay short-circuit response delay earth-fault indication unit indication of a) short-circuit b) earth-fault c) battery reset of the indicator on site function test a) function test b) battery test c) remote function test dimensions: indication unit Protection class: indication unit Protection class: sensors Value 200 / 300 / 400 / 500 / 600 / 800 / 1000 * A (±10 %) 10 / 20 / 30 / 40 / 60 / 80 / 100 * A (±10 %) 40 / 60 / 80 / 160 * ms 40 / 60 / 80 / 160 * ms suitable for surface installation 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 external power supply (on/off) by push-button a) the button has to be pressed for 1 second b) the button has to be pressed for 3 seconds c) connection for a potential-free remote test (WxHxD) 100 mm x 162 mm x 50 mm IP65 IP67 internal type test according to IEEE operation temperature range power supply SCADA contact short-circuit sensor (CT) earth-fault sensor (CT) -25 C to +70 C lithium battery (LiSOCl2) type AA / 3.6V / 2600 mah Optional: V DC with lithium backup battery type AA / 3.6V / 2600 mah Optional: 110 / 230 V AC with lithium backup battery type AA / 3.6V / 2600 mah type EKL8001/EKL8002: 2x NO/NC contacts Configurable at site by DIP switch: - contact type (NO or NC) - combined or separate earth-fault and short-circuit indication - permanent / wipe contact (100ms * ) max. 230 V AC / max. 2 A / max. 30 W type EKL8002: 1x additional NO/NC contact for empty battery remote indication (configurable at site) three short circuit sensors type LK (for single-core cable) diameter: 22-42* mm connection cable length: 3* m (fibre optic cable) one earth-fault sensor type LE (sum current sensor for a three-core cable) diameter: * mm connection cable length: 3* m (fibre optic cable) *PLEASE NOTE: other values can be ordered EM GMBH Page 2

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4 Short-circuit sensor type LK EM GMBH Page 4

5 Earth-fault sensor type LE EM GMBH Page 5