SNV-EKL3.2 Current Fault Indicator Short Circuit And Grounding Fault Sensor SFI

USER MANUAL SNV-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 Function 1) Intelligent detection of short-circuit and ground fault and through the corresponding LED indicator on the panel to indicate. 2）Display Monitor panel designed with button, it is convenient for reset/or test. 3）It can set The pulse width time(Response time) of fault current for preventing incorrect fault indication caused by surge current. 4）It can set the reset time. 5）It can set the short circuit alarm current via the Dip on short circuit sensor 6）It can set the earth fault alarm current via the Dip on display unit monitor. 7）It can reset and detect the remote fault indication device remotely. 8）It can provide switch volume for external devices through remote relay contact.； 9）Remote fault indicating can be made by external devices.； 10）Low battery display and alarm Technology Parameter Voltage grade 3-40.5KV   Battery life ≥8year Frequency 50HZ/60HZ Low voltage alarm of battery ≤2.7V Short circuit alarm current  (7 levels) 200/250/300/400/500/600/1000A Short circuit sensor fiber length 4meter, or customized Earth fault alarm current  (6 levels) 10/20/30/40/50/60A ,or customized Earth fault sensor cable length 5 meter,or customized Reset time (4 levels) 4H/8H/24/36H Load fluctuation and escape pulse time setting Short circuit 40/60/80/160ms (4 levels) Rated frequency withstand voltage 2KV/1min Earth fault Relay contact capacity ≤95W work environment Temperature -40℃~+60℃ Alarm current accuracy ±10% Humidity ≤95%RH Working power ER17505 battery 3.6V/3500mAh Use for cable diameter Short circuit CT (Fiber, Type S） A Ф20mm~40mm, Normally B Ф300mm~70mm customized Working current Standby state ≤10μA Earth fault sensor (Cable, type E) A Ф60mm~100mm Normally Working state ≤1mA Indicator protection level Monitor panel IP 40 B Ф80mm~130mm Customized Sensor CT IP 67