HVD Capacitive Voltage Detecting System

Information

HVD series forms a complete capacitive voltage detecting system dedicated to 7.2–40.5kV medium voltage switchgear, fully compliant with IEC 61243-5 standard. This non-contact capacitive coupling system consists of high-voltage capacitive insulators (C1 coupling unit) and panel-mounted HVD high voltage indicator host. Without galvanic electrical connection to live HV conductors, the capacitive bushings capture electric field signals proportional to bus voltage and transmit low-energy signals to the indicator via shielded cables. The host processes coupled capacitance signals to judge three-phase live status, with matching adjustable capacitance parameters for different voltage grades (7.2kV to 40.5kV) to ensure stable detection accuracy. The whole system adopts compact 96×48mm panel installation, supporting universal 85–265V AC/DC auxiliary power supply, and works reliably under wide temperature range of -25°C ~ +40°C. This capacitive voltage detecting system delivers multi-level voltage judgment with a 10%~40%Un detection threshold. Color-coded flashing LED lamps separately display L1/L2/L3 three-phase live status to give clear visual warnings for operators. It integrates independent self-test buttons (S.T.) for regular system function verification, eliminating misjudgment risks caused by indicator failure. Equipped with one set of change-over relay dry contacts, the system outputs voltage presence signals for mechanical interlocks, local alarms and remote SCADA linkage. Widely deployed on switchgear incoming cabinets, breaker rooms and transformer feeders, the capacitive voltage detecting system verifies busbar energization/de-energization status before maintenance, effectively preventing electric shock accidents and improving the safety of medium-voltage power distribution operation.
Chongqing Blue Jay Technology Co., LtdZ3.H18Blue Jay is a professional Chinese local industrial power and energy meter manufacturer with over 10 years of experience. We hold full capabilities in industrial power and energy meter manufacture, which supports us in offering you a one-stop solution for OEM/ODM customers. Many times, we are not only manufacturing for you but also supporting your design according to your final applications. Our capabilities include manufacturing and designing power and energy meter solutions. We also can manufacture a variety of protection relays such as motor protection relays, arc flash relays, DC insulation monitoring relays, partial discharge monitoring, earth leakage relays, current transformers, hall effect sensors, and much more. We can manufacture power energy meters & protection relay according to your design. We also can design circuits, functions, UI, and packaging, and manufacture the final products as per your requirements. Our company introduces advanced management concepts and scientific management models, implements ISO9001 international quality standards, s and adapts home and abroad advanced R&D, production, and testing equipment. As an ISO 9001-certified power meter and protection relay company, Blue Jay controls quality from CE, RoHS, and after-sales. In many cases, we can also support you to optimize designs which can reduce cost and the risk of failure on real applications. Blue Jay offers very competitive prices because we have the leverage of high volume production, 2 factories with over 20, 000 m2 area, and China's low production cost. Until now, our products have been trusted by 1000+ Clients from Russia, India, Iran, Thailand, Korea, Malaysia, Sudan and South America, Guyana, and other countries. In one word, Blue Jay is a customer-oriented enterprise that offers you a one-stop energy meter and protection relay solution at a competitive price. Just send us an inquiry for further discussion.

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