Arc Suppression Harmonic Elimination Device
An arc suppression and resonance elimination technology, applied in circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. Short and other problems, to achieve the effect of high safety, simple overall structure and long service life
Active Publication Date: 2018-07-17
浙江振心电力设备有限公司
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- Application Information
AI Technical Summary
Problems solved by technology
Most of the existing arc suppression and harmonic elimination devices have complex structures, cannot extinguish the arc well, and have a shorter service life
Method used
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Embodiment Construction
[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 and figure 2 As shown, the arc suppression and harmonic elimination device includes a circuit breaker 1, an overcurrent protection unit 2, and an autotransformer 3 sequentially arranged on the primary side line. The output end of the primary side line is connected to a primary side transformer 4, and the primary side transformer The output terminal of 4 is connected with the secondary side line, the arc suppression and resonance eliminator, the ammeter 8 and the load 6 are connected in series on the secondary side line, the voltmeter 7 is connected in parallel on the secondary side line, and the bottom of the arc suppression and resonance eliminator is provided with Grounding plate 10, the thickness of the grounding plate 10 is 5-20mm, the arc suppressing and resonance eliminator is fixed on the grounding plate 10 thr...
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The invention discloses an arc extinction and resonance elimination device, which comprises a circuit breaker, an overcurrent protection unit and a self-coupling transformer which are sequentially arranged on a primary side line. A primary side transformer is arranged at the right end of the primary side line. A secondary side line is arranged at the right end of the primary side transformer. The secondary side line is connected in series with an arc extinction and resonance elimination device. A ground connection iron plate is arranged at the bottom of the arc extinction and resonance elimination device. The arc extinction and resonance elimination device comprises a protective shell, an inner iron core and an outer iron core, wherein the inner iron core and the outer iron core are arranged in the protective shell. The outer wall of the inner iron core is provided with an inner coil. The two ends of the inner coil are connected with the secondary side line in series. An outer coil is arranged on the outer wall of the outer iron core. The two ends of the outer coil are connected with an external power supply. The device is simple in overall structure and reasonable in design. The partial discharge amount of the arc extinction and resonance elimination device is well limited, so that the partial discharge amount of the arc extinction and resonance elimination device is smaller than 5pC. Therefore, the device is high in safety, good in arc-extinguishing effect is good, and longer in service life.
Description
technical field [0001] The invention relates to the technical field of power equipment, in particular to an arc suppression and harmonic elimination device. Background technique [0002] The function of the arc suppression and harmonic elimination device is that when a single-phase ground fault occurs in the power grid, the fault point flows through the capacitive current, and the arc suppression and harmonic elimination device provides inductive current for compensation, so that the current at the fault point drops below 10A, which is beneficial to prevent the arc from crossing zero. After re-ignition, the purpose of arc extinguishing is achieved, the probability of high-amplitude overvoltage occurrence is reduced, and the accident is prevented from further expanding. When the arc suppression and harmonic elimination device is properly tuned, it can not only effectively reduce the probability of arc grounding overvoltage, but also effectively suppress the amplitude of the o...
Claims
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IPC IPC(8): H02H9/08
CPCH02H9/08
Inventor 阚屹峰
Owner 浙江振心电力设备有限公司