Fault Indicator

1.Fault Indicator generalFI-3A1F Fault Indicator are used under 35kV Distribution System to faster locate the fault in distribution systems by flashing to indicate the path of fault current, help the crews to trace the path of fault current and to locate the fault more efficiently, greatly reduce the time and cost of fault location, and enhance the reliability of power supply. 2.Principle The fault indicator detects and identifies fault current with induced coil and logical identification circuit. Once the indicator is triggered it will begin to flash which indicates the location of the fault. The location of the fault is located on the line between the last tripped indicator and the first un-tripped indicator.3. Ratings Item DescriptionRatingsEnvironmentratingsEnvironment Temperature-30oC--70oCRelative Humidity≤100%Altitude<2000mThermoelectric≤30System RatingsLine Voltage≤35kV System Frequency50Hz,60Hz Operating ModeSingle power source or radial supply Minimum Load Current ≤0A for overhead bare conductor ≤4A for cable or insulated line Maximal load current <630A Minimum fault Current Addition>120A MaxFeedbackCurrent <80ADelay of the relay protection<8S The interval of the recloseoperation at the substation>0.2S Diameter of the conductor8mm---29mmProduct Ratings Operation power 6V, 2 lithium cel of 3V/1.3Ah series connection. Power for monitoringmodel of the battery 3V, a lithium cel of 3V/1.3Ah Power consume Operation power 12uA, battery monitoring model 6uA.Operating Characterestic I < 80A :no action; I--t inversetime limit operating characteristic,Remarks:I: fault current additionvolume ,t: response time) . Normally 160A 0.2S or 600A 0.02S. Inrush Restrain Time (Charge time) >12sFlash Indication4 LEDs flash for indication, action indication 50ms per2.6S.1.5S for showpieceAutomatic Reset Time6h, 12h, 24h. 7h for ShowpieceBattery Self-check the voltage of the battery set is automatically checked after theindicator is reset and every month. When the voltage is less than 5.2V, theyel ow LED would flash for the Battery low Voltage indication . Battery low Voltage Indicate One yel ow LED flash in each side, indication for 50ms per 2s. After replacing the new 3V/1.3Ah lithium batteries, the yellow LED on each side wil stop flashing.Short time withstand current 40kA/2SWeight<0.5kgVolumeφ75MAX×155mmIndicate Time More than 2000 times Permanent withstand current 630A EMI TestsSurge impulse immunity testClass4 according IEC61000-4-5 (fixed on naked wire) Electrical Fast Transient/Burst Immunity Test Class 4 according IEC 61000-4-4 (fixed on naked wire) 100kHz and 1MHz slow damped oscil atory wavesimmunity test Class 3 according IEC61000-4-12 (fixedon naked wire) Electrostatic Discharge immunity Test Class 4 according IEC61000-4-24.Features 4.1 Live line installation and removal can be installed or removed on live line, adapted to overhead line outer-diameter less than 29mm 4.2 Be made with fully-sealed structure and of waterproof ,rustproof material, suitable for installation on the line. 4.3 Automatically sets the maximum trip current based on load 4.4Automatic Inrush restrain 4.5Flashing indicate, for easy night observation 4.6Automatic Reset 4.7Manual test and reset can test the condition of the indicator and reset it manually with a magnet 4.8 Battery Self-indicate and Replaceable : Battery Self-check: the battery set voltage is automatically checked after the indicator is reset and three month. When the battery sets voltage is low, the yellow LED flash in each side, indication the low voltage. The flashing time is more than 2 month until the 3V battery use up. 4.9 RuggedTest materials from the 10 m high fell to the ground and not damaged