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Short Circuit and Ground Fault Indicator

EKL5 Short Circuit and Ground Fault Indicator indicates high voltage power line short circuit fault by detecting the 3 single-phase line-currents and short circuit currents, and the grounding fault by detecting the zero sequence currents. With visual or audible indicators, it helps line patrol staff to fast find out the location where there is a short circuit or grounding fault on the 3kV-40.5kV power distribution networks, switchgears or cable branching units etc.

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    EKL5
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Short Circuit and Ground Fault Indicator EKL5

 

Short circuit fault alarm indication

 

Short-circuit fault sensors installed on 3 single phase cables, monitoring the current changes of the power supply lines, when the current change value reach or exceed Threshold currents for short circuit alarm (this value can be set as per user requirement),the short circuit fault sensors output alarm signal, through optical fiber the signal will be sent to the indicator host, the corresponding fault indicator light will flash to alarm the short circuit fault.


Earth fault alarm indication

 

Earth fault sensor installed on the bifurcation unshielded part of three-phase cable, detecting the zero sequence current value of the three-phase cable, when its value reach or exceed Threshold currents for grounding fault alarm (this value can be set as per user requirement), the earth fault sensor outputs alarm signal through optical fiber, which will be sent to the indicator host, and the earth fault indicator light will flash to alarm the earth fault.



Features of Short Circuit and Ground Fault Indicator EKL5

 

* Short-circuit and earth fault detection with 3 single-phase current sensors, and one grounding current sensor

* Short-circuit indication (3 single phase L1,L2,L3) by three super bright LEDs respectively

* Earth fault indication by one super bright LED display

* Remote indication via 2 relay contacts

* Auxiliary power supply: 24V-230V DC/AC or built-in Li-ion battery with low-power-status indication

* Reset/Test Button

* Remote reset

* Auto-reset: 8h/12h/24h/48h reset time for options


Technical Parameter of Short Circuit and Ground Fault Indicator EKL5


Model number

EKL5

Voltage level

3kV-40.5kV

Ambient

temperature

 -25°C to +70°C

humidity

95%

Threshold currents for short circuit alarm

150A-2000A

Threshold currents for grounding fault alarm

10A-100A

Alarm current accuracy

±10%

Alarm response time

short circuit fault

40ms

grounding fault

40ms

Working current

stand by

≤5uA

indication alarm

≤0.8mA

Auto reset time

8h/12h/24h/48h

Auxiliary power supply

built-in battery

Li-ion 3.6v2.25Ah

external

24V-230V DC/AC

Capacity of relay contact 

2A 30VDC/1A 125VAC

Applicable conductor diameter

short circuit sensor

type A

Φ20mm~Φ40mm

type B

Φ30mm~Φ50mm

type C

Φ50mm~Φ70mm

grounding sensor

type A

Φ60mm~Φ100mm

type C

Φ80mm~Φ130mm

Protection class

indicator

IP40

sensor

IP65

Fiber cable length for short circuit sensor

 1.5m can be customized

Fiber cable length for grounding sensor

 2.5m can be customized

Panel window size (WxH)

92x45mm

Indicator size (WxHxD)

96X48x69mm

Sensor size (WxHxD)

40x44x27mm



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Xiamen Andaxing Electric Group Co.,Ltd TEL:86-592-3170016 or 3170079 FAX:86-592-3170008 Email : ade@cnade.net ADD:58th, Siming Park, Tong’an Industrial Zone, Xiamen, China. Zip Code : 361100 Websites : www.andaxingelectric.com  www.andaxing.net   www.cnade.net
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