EARTH-FAULT indicator

TypE EASI

The earth-fault indicator can be used in radial networks with one input and open-ring networks which are solidly earthed or low resistance-earthed. The special feature of the EASI is the indication of an earth-fault by one LED indicator and optionally one additional flag indicator (EASI-ER / EASI-R version). 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 retrofi tted on the cable. The display device is powered by an exchangeable lithium battery. Alternatively the display device can be connected to an auxiliary power supply.

The earth-fault indication provides two indication modes by LED:

Single blink per second: There has been an earth-fault current, but it is not present any more.

Double blink per second: The earth-fault current is still present or there is an asymmetrical current in the network.

The indicator is available in three versions:

– Type EASI with LED indication
– Type EASI-ER / EASI-R with LED and flag indication
– Type EASI-R with LED and fl ag indication and push-button on the front-side.

The earth-fault indicator type EASI and EASI-R consists of:

– One display unit for displaying the earth-faults
– One sensor type SE (page 19) for detecting the earth-faults

Features and Benefits

Trip currents for earth-fault between 10 and 160 A

Response delays: 40 / 60 / 80 / 160 ms

Button to test the function of the display unit

Contacts for remote monitoring (NO + NC)
– permanent or wipe contact type can be selected on-site

Reset function:
– Manual
– Time: 1 / 2 / 4 / 8 h
– Optional: by recovering operating current
– Optional: by recovering auxiliary power supply

Power supply:
– lithium battery type AA 3.6 V
– or 12-110 V DC
– or 115/230 V AC

Surface-mounted and panel-mounted housing

Optional blinking unit type BL4.1 for outdoor indication

LED indication
Or
LED and flag indication