Overview: Currently, there is no effective and accurate method or technology for temperature warning of cable T-joints inside ring main units. This is mainly due to the fully enclosed, high temperature resistant, and insulated characteristics of cable T-joints. Traditional contact temperature measurement cannot effectively and accurately measure temperature. Features: This device consists of a passive wireless temperature sensor and a wireless temperature concentrator. The temperature sensor is...
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Concept: The safety and reliability of power equipment are critical to ultra-large-scale power transmission & distribution and grid security assurance. Real-time monitoring for safe operation of grid power equipment has become essential. Long-term grid operation data indicates that most electrical equipment faults originate from high-current operation, equipment aging, and degraded insulation performance. These factors cause equipment to operate under high-temperature conditions, which may furth...
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Overview: Cables are widely used in various industries in China, which is closely related to their advantages such as simple process, easy installation, light weight, heat resistance, and large transmission capacity. As a connecting device for the collection of high-voltage cable grounding wires, high-voltage grounding boxes are prone to safety hazards due to inadequate monitoring. Therefore, we urgently need to develop intelligent high-voltage grounding box products for cables to further ensure...
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Overview Cables of 10kV and above are mainly single-core cables equipped with metal sheaths. The magnetic flux generated by the alternating current in the conductor core couples with the metal sheath of single-core cables, inducing high voltage at both ends of the sheath. Therefore, proper grounding measures must be adopted to limit the induced voltage within a safe range (normally ≤50V, or ≤100V with additional safety protections). For short cable circuits, the metal sheath of single-core cab...
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English Translation Concept: An electromagnetic pulse is a transient electromagnetic phenomenon, generally referring to transient high-power electromagnetic radiation generated by electromagnetic weapons, natural lightning, high-power electrical equipment and electrostatic discharge. In terms of time-domain waveform, electromagnetic pulses feature a steep leading edge and narrow pulse width; in the frequency domain, they cover a wide spectrum. When acting on electronic components, electrical eq...
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