853 High Voltage Flexible Safety Device HLRX

Our company's 853 high-voltage flexible safety device adopts a dual PT structure, and the dual PT used has different parameter values, providing conditions for ensuring stable and reliable sampling signals. The main technical measures taken by the device are: to effectively prevent large excitation surges, the PT saturation point is increased to 2.0-3.5 times, solving problems such as oil leakage, saturation, and heating after long-term operation; Secondly, it has good linear characteristics, which avoids changes in the linear relationship of PT caused by instantaneous current or transient surge, leading to accidents such as PT burning, breakdown, and explosion. At the same time, in order to prevent PT resonance, our company used a patented product HLA in conjunction with the device to separate it from the resonance zone. This product also applies CT/dual PT/zero sequence current and phase/redundancy discrimination calculation technology, which has the function of locating and discriminating system grounding faults. In addition, advanced dual CPU calculation and discrimination technology is adopted, which can completely distinguish whether the fault interval belongs to the protection range of this device. If the fault problem does not belong to the protection range of this device, this device only provides warning and does not affect use. In addition, through the design of high anti-interference ability, the occurrence of system accidents caused by device misoperation is prevented.

2、The 853 high-voltage flexible safety device has the following advantages of special components：

Special overvoltage suppressor: combining oxidative varistors and semiconductor special devices, with automatic adjustment and adaptive protection functions;

　　Special dual PT: with different saturation points, linear relationships, and adjustable parameters

　　Special capacitive current treatment: with capacitive current regulation characteristics

　　Special microcomputer controller: equipped with dual CPU/DSP high-speed processing/multi-layer data acquisition

　　Special collection method: Collecting, calculating, and comparing phase, power, reactive power, active power, harmonic, resonance, zero sequence current, three-phase current, three-phase voltage, and other data with dual PT/GT/zero sequence current transformers.

3、The 853 high-voltage flexible safety device has the following functions：

　　Equipped with adaptive and fault discrimination functions;

　　Capable of processing and eliminating primary resonance;

　　Equipped with PT monitoring and protection functions;

　　Equipped with fault interval discrimination function;

　　Equipped with insulation monitoring and warning function;

　　Capable of harmonic monitoring and processing;

　　Capable of handling large capacitive currents in the system;

　　Capable of recording system failures and warning functions;

　　It has discriminative multiplicity and special calculation methods, completely different from traditional fault handling equipment.