EKL Panel Type  line fault indicator

The Earth and Short Circuit Fault Indicator is an instrument for detecting short circuit and earth faults. This indicator is used in each loop of medium voltage radial networks. In order to avoid serious failure happening to distribution power network, especially in the network where lots of ring main unit with loadbreak switch were used, the upper level system must be tripped within the set time when short circuit or earth fault occurs in the lower level. When tripping and breaking happens, the whole network subjected to the upper level will be power off. The indicator can locate and indicate the fault section so that the operator can find and trip the fault section quickly according to the alarm signal; this will not only save a lot of working time, but also shorten the system interruption duration and range of power outage. 

Earthing fault warming current:3~200 amp±1%;

Short circuit warming current:150-1500 amp ±10%;

Ambient temperature: -18oC~+60 oC;

Power source: 3.6V lithium battery (duration more than 5 years)

Battery low voltage warning level: ≤2.93V

Automatic reset time: 2~48h (16h Default)

IP Code: IP54

Output capacity of transfer relay:  220V AC / 0.3A 30V DC/1A

Normal Consuming current: ≤10 A

Operating current of indicator:≤0.8 mA

Max withstand current of short circuit current sensor: 20kA 3S

Dimension of the indicating unit (length*height*depth):94 mm*48mm*88mm

Dimension of the mounting hole on the panel (length*height):  90.5 mm*42.5mm

Earth fault sensor is used on three-core cable, outer diameter ≤110mm

Short circuit sensor is used on single-core cable. outer diameter ≤35mm