Characteristics and parameters of DC system earth fault tester

Fect2004 DC ground resistance fault tester product independently developed and produced by Shanghai ficote Electric Technology Co., Ltd welcome to the details of this product! There are many kinds of fect2004 DC grounding resistance fault tester, different applications will have subtle differences, our company provides you with solutions DC ground resistance fault tester product features: 1 It is suitable for DC systems below 220V 2 Measure the DC grounding resistance value 0-20k Ω 3 The instrument can automatically calculate the grounding resistance value, grounding current value, grounding voltage value and provide basis for finding the fault point by using the microcomputer operating software system and high-precision sensor 4 Adopt distributed capacitance device to eliminate stray 5 Adopt Japanese high-precision and anti-interference clamp type meter ⒍ applicable ambient temperature range: - 50-400 (13) no impact on human environmental safety 8 On line live fast search for DC system of power plant or substation ⒐ there is interference to the power supply ⒑ the reliability is 99% Technical parameters of DC grounding resistance fault tester: 1 High voltage of input Zui: 250dc; 250av; 2 High output voltage: ~ 15V; 3 High input current: 120mA; 4 High input power: 30W; 5 Rated voltage: dc220v, AC220V; 5 Rated power: 220W; 5 External dimension weight: 440 * 290 * 210 (mm) 7kg Fect2004 DC grounding resistance fault tester is widely used in power, telecommunication, metallurgy, petrochemical, textile and other fields, and plays an important role The DC system ground fault will bring huge security risks If a single point DC ground fault occurs, it must be solved within the specified time If it can not be solved quickly, the system will produce multi-point grounding, and the consequences will be unimaginable The traditional solution is to disconnect the DC system one by one (the disconnection time is not more than 3 seconds), see if the DC system voltage returns to normal, and continue to search the next step after the DC grounding resistance fault tester has confirmed a circuit in the manual This method is time-consuming and laborious, and has potential hazards Some equipment is not allowed to disconnect the DC system, so the traditional DC grounding is not allowed The search method is not ideal Using "DC grounding on-line tester" can avoid the defect of traditional search method and realize fast, safe and effective search without affecting the DC system