USER MANUALSNV-EKL3.2 Earth fault and short circuit indicator Description SNV-EKL3.2 Earth fault and short circuit indicator, it Widely used in various ring cabinets, high-voltage switch-gear and cable branch box in power system, can accurately and reliably detect the fault section and fault type of power grid. The use of Earth fault and short circuit indicator is an efficient way to check cable fault, and is an effective way to improve the operation level of distribution network and the efficiency of fault handling. The design uses electromagnetic induction, photoelectric conversion, signal optical fiber transmission and single chip microcomputer control technology to make fault alarm with high accuracy and strong anti-interference ability.Equipped with fault remote transmission port, suitable for distribution network automation;  Battery low power alarm indication; Low-power design, high-capacity lithium battery power supply, long battery life (more than 8 years); external structure using card or lock design, the whole machine is easy to load and unload.Product Function1) Intelligent detection of short-circuit and ground fault and through the corresponding LED indicator on the panel to indicate.2ï¼Display Monitor panel designed with button, it is convenient for reset/or test.3ï¼It can set The pulse width time(Response time) of fault current for preventing incorrect fault indication caused by surge current.4ï¼It can set the reset time.5ï¼It can set the short circuit alarm current via the Dip on short circuit sensor6ï¼It can set the earth fault alarm current via the Dip on display unit monitor.7ï¼It can reset and detect the remote fault indication device remotely.8ï¼It can provide switch volume for external devices through remote relay contact.ï¼9ï¼Remote fault indicating can be made by external devices.ï¼10ï¼Low battery display and alarmTechnology ParameterVoltage grade3-40.5KV Battery lifeâ¥8yearFrequency50HZ/60HZLow voltage alarm of batteryâ¤2.7VShort circuit alarm current (7 levels)200/250/300/400/500/600/1000AShort circuit sensor fiber length4meter, or customizedEarth fault alarm current (6 levels)10/20/30/40/50/60A ,or customizedEarth fault sensor cable length5 meter,or customizedReset time(4 levels)4H/8H/24/36HLoad fluctuation and escape pulse time settingShort circuit40/60/80/160ms(4 levels)Rated frequency withstand voltage2KV/1minEarth faultRelay contact capacityâ¤95Wwork environmentTemperature-40â~+60âAlarm current accuracy±10%Humidityâ¤95%RHWorking powerER17505battery3.6V/3500mAhUse for cable diameterShort circuit CT(Fiber, Type Sï¼AФ20mm~40mm,NormallyBФ300mm~70mm customizedWorking currentStandby stateâ¤10μAEarth fault sensor(Cable, type E)AФ60mm~100mmNormallyWorking stateâ¤1mAIndicator protection levelMonitor panelIP 40BФ80mm~130mmCustomizedSensor CTIP 67
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