Earth-fault and short-circuit indicator

Type EKS

The earth-fault and short-circuit indicator can be used in radial networks with one input and open-ring networks which are solidly earthed or low resistance-earthed.

The indication of the short-circuit is done by one or three LED indicator and one LED for earth-fault indication. The connections between the short-circuit sensors and accordingly the earth-fault sensors to the display unit are done by cable. All sensors must be mounted on screened cables. The sensors are 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 that should not fail in case of a fault.

The earth-fault and short-circuit indicator type EKS consists of:

– One display unit for displaying the earth-fault and short-circuit
– Three sensors type SK for detecting short-circuits
– One sensor type SE for detecting earth-faults

The earth-fault and short-circuit indicator type EKS is available in two versions:

Type EKS 1.2: Short-circuit indication by one common LED for all three phases
Type EKS 3.2: Short-circuit indication by one LED for each of the three phases.

Both versions provide an earth-fault indication with one LED.