Directional Type Short Circuit and Earth Faulty Indicators

Product Description

Product Description 1. Short circuit fault alarm indication: Short-circuit fault sensor installed on single phase cable, monitoring the current changes of the power supply line in time, when the current change value reach or exceed short circuit current action when the alarm set point (this value can be setting according to user requirements before producing),the short circuit fault sensor emit alarm signal, the signal through optical fiber sent to the indicator host, the corresponding fault indicator light flashing, Send out alarm indicator.
2. Earth fault alarm indication: earth fault sensors installed on the bifurcation unshielded part of three-phase cable, detection of three-phase cable of zero sequence current value, when its value reach or exceed the earth current action when the alarm set point(this value can be setting according to user requirements before producing), the earth fault sensor emit alarm signal,the signal through optical fiber sent to the indicator host, the earth fault indicator light flashing, Send out alarm indicator.
3. Battery low battery alarm indication: When the indicator host internal battery voltage drops to 2.5 V, generate alarm signal,to mention maintenance personnel change the battery, the alarm signal lasts about two months. Furthermore it equipped with an external power supply interface,can use an external power source.(Type B terminal 12 "-", 9 "+"; Type A terminal 8 "+", 9 "-" AC/DC5V-10V).
4. Automatic reset: When the indicator emit alarm signals, In a set of automatic reset time, without manual reset, the indicator can be automatically reset.(Reset time: 4H.8H.12H.24H, open the host signs in the dial the code switch setting on its own)
5. Test and Reset: When the indicator emit alarm signals, press the indicator host "reset/test" button on the panel, can clear alarm status. In the normal state, hold down the indicator host "reset/test" button on the panel for 3 seconds, Panel on all the lights flashing 10 times.Type B also have relais working sound, this means the indicator is in normal working.
Product Parameters

Ambient temperature:	-35ºC≤T≤+75ºC	Relative humidity:	≤85%
Pollution:	JP40	Automatic reset time:	4.8.12.24H (Default 12H)
Line voltage grade:	≤35KW	Battery capacity:	3.6V 2Ah Service life 5 Years
Relay capacity:	AC230V/2A	Earth fault warning current:	≥20A(Default 20A)
Protection class:	IP65	Short circuit warning current:	≥100A(Default 800A)
Accuracy:	< ±10%	Action delay time:	20-300ms
Short circuit withstand current:	≥20kA 2S	Applicable line diameter:	≤Φ400mm
Weight of whole set:	<1000g	Installing hole size:	92mm×44mm

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