EARTH-FAULT INDICATOR TYPE EASI

Product catalog summary

General Description
The EASI earth-fault indicator is designed for use in radial and open-ring networks that are either solidly earthed or low resistance-earthed. It comes in two versions: EASI, which uses a single LED for fault indication, and EASI-R, which includes both an LED and a flag indicator. The system comprises a display unit and a sensor (CT), connected via cable, and is suitable for retrofitting on screened cables.

Features and Options
- Permanent Earth-Faults: Indicated by double blinking of the LED.
- Remote Reset and Test: Can be remotely reset and tested via an external contact.
- Power Supplies: Standard lithium battery (LiSOCl2) with optional DC or AC power supply and backup battery.
- Push Button: Available on the side or front of the housing.
- Sensor Reset: Automatic reset upon recovery of net current.
- Optional Inrush Current Filter: Suppresses inrush currents up to 3 seconds.

External Connectors
- Connectors for earth-fault sensor, remote reset/test, external blinking lamp, SCADA contacts, and external power supply.

Technical Specifications
- Earth-Fault Current: Adjustable between 25 to 125 A (±10%).
- Response Delay: Adjustable between 40 to 160 ms.
- Indication: Red LED for earth-fault, yellow LED for low battery, with optional flag indication.
- Reset Options: Manual, remote, time-based, or automatic upon current recovery.
- Function Tests: On-site and remote tests available.
- Dimensions: 76mm x 117mm x 43mm.
- Protection Class: IP65 for indication unit, IP67 for sensors.
- Compliance: EMI according to IEC standards, internal type test per IEEE 495-2007.
- Operating Conditions: Temperature range from -25°C to +70°C, maximum humidity 95%.
- SCADA Contacts: One NO and one NC, with selectable contact type.
- Earth-Fault Sensor: Type SE, suitable for three-core or single-core cables, with a diameter of 80-100 mm and a 3 m connection cable.

Note: Standard values are provided, with custom values available upon request.

Catalog excerpts

DATA SHEET EARTH-FAULT INDICATOR TYPE EASI surface-mounted General description The earth-fault indicator type EASI can be used in radial networks with one input and open-ring networks which are solidly earthed or low resistance-earthed. The EASI is available in two versions: EASI: indication of an earth-fault by one LED EASI-R: indication of an earth-fault by one LED and one flag indicator The indicator set consists of one display unit and one sensor (CT). The connection between the earth-fault sensor and the display unit is done by cable. The sensor must be mounted on screened cables. The sensor is divisible and can be retrofitted on the cable. The earth fault indicator detects the earth fault by measuring the sum current of the monitored network with one sensor (CT). Features and options Permanent earth-faults: Remote Reset and Test: Power supplies: Push button: Sensor reset: Optional reset input: Optional inrush current filter: Indication of permanent earth-faults by double blinking of the earthfault LED. Device can be remotely resetted and remotely tested through one external contact. lithium battery (LiSOCl2) type AA / 3.6V / 2600 mAh Optional: 10-110 V DC or 110 / 230 V AC power supply with optional lithium backup battery Push button on the side of the housing Optional: push button on the front of the housing Automatic reset on recovering net current For reset by recovering external power supply Suppression of inrush currents up to 3 seconds (custom value can be ordered, 230V AC input required.) earth-fault sensor (CT) remote reset/test external blinking lamp (Type BL4.1 + BL6) SCADA contact NO SCADA contact NC external power supply ELEKTRO-MECHANIK EM GMBH Ringstr. 4 - D-42553 Velbert / Germany Tel: +49 2053 422890 - Fax: +49 2053 422899 www.emg-ger.com

Open the catalog to page 1

DATA SHEET Subject earth-fault current (phase to ground) response delay indication unit suitable for surface installation one red LED Optional: one flag indication one yellow LED indication of low battery reset of the indicator a) manual by push-button b) connection for a potential-free remote reset c) time*: 1 / 2 / 4 / 8 (+/-1%) hours after fault Optional: d) self-acting after recovering net current Optional: e) self-acting after recovering of 230 V AC on site function test a) function test b) battery test by push-button a) the button has to be pressed for 1 second b) the button has to be pressed...

Open the catalog to page 2